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https://hackaday.com/2010/11/10/android-talks-pulsewave/
|
Android Talks Pulsewave
|
Joseph Thibodeau
|
[
"Android Hacks",
"digital audio hacks",
"Portable Audio Hacks"
] |
[
"android",
"dac",
"rs232",
"serial"
] |
Serial communications are a mainstay of digital computing. They don’t require much physical infrastructure and they exist in variations to fit almost any application. The behaviour of serial communications lines, varying from high to low voltage in a timed pattern, is analogous to a 1-bit DAC.
Using a whole DAC for serial communication
would be a waste in most cases, but the [
RobotsEverywhere
] team found an exception which you may have
encountered already
.
Since the audio output of the Android is accessible and addressable, [
RobotsEverywhere
] wrote source code to use the left and right channels as separate serial communication lines. This circumvents the need to bust into the device and muck about with the hardware which is great if you want a no-risk hack that allows communications to an RS232 port. Any hardware on which you can write to the DAC (and control the sampling rate) is a potential target.
There are some external electronics required to convert the audio signal to TTL, but it’s not very complicated–a couple of comparators and change. You can see it in action after the break.
As a bonus, when you’re done for the day you can plug in your headphones and listen to the
soothing poetry of pulse waves
all night long.
[youtube=http://www.youtube.com/watch?v=PfSSPTtacnk]
| 41
| 40
|
[
{
"comment_id": "210389",
"author": "elektrophreak",
"timestamp": "2010-11-10T13:36:51",
"content": "hey this is very cool!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210391",
"author": "Owen",
"timestamp": "2010-11-10T13:43:24",
"content": "I’d like to see this take a step back to the 80s next, with that audio recorded onto cassette tapes…I’ve started myself wishing that I still had my old Amstrad CPC to play Head Over Heels on, even if it did take forever to load.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210393",
"author": "smoker_dave",
"timestamp": "2010-11-10T13:55:18",
"content": "An Op-amp without using feedback?It might work, but it’s not correct!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210395",
"author": "MJD",
"timestamp": "2010-11-10T14:03:34",
"content": "I’m pretty sure its common practise to use an op-amp without feedback as a comparator, its just a differential amplifier with very high gain, so any difference between the inputs pegs the output to one supply or the other (if its a rail-to-rail output op-amp).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210396",
"author": "fartface",
"timestamp": "2010-11-10T14:05:17",
"content": "Wow horribly designed circuit. Example of a N00b that knows nothing about op amps using them wrong.Please get a feedback resistor in there.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210397",
"author": "spiritplumber",
"timestamp": "2010-11-10T14:08:26",
"content": "Spiritplumber from Robots Everywhere here. I have a degree in electrical engineering. Not using a feedback resistor is actually what lets you have a rise/fall time that is fast enough to make some finicky serial inputs accept the signal at all, at least when using a LM324, which isn’t a great op-amp to start with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210398",
"author": "spiritplumber",
"timestamp": "2010-11-10T14:11:29",
"content": "Also, I know this has been done before — the idea here was to reduce parts count and CPU overhead on the phone, and increase baud rate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210400",
"author": "Patrick",
"timestamp": "2010-11-10T14:18:08",
"content": "smoker_dave >> the Op-Amps are used as comparators here, no feedback necessary (or even recommended). The whole point is to have them saturate as fast as possible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210401",
"author": "kingkaiserking",
"timestamp": "2010-11-10T14:18:33",
"content": "Why is it that some people are trying to be all-knowing of somebody’s design?Giving comments like that without proving something by themselves hah…Great design by the way and a lot of possibilities…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210402",
"author": "Springuin",
"timestamp": "2010-11-10T14:20:53",
"content": "The opamp is used as a comparator, there is no need for feedback resistors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210404",
"author": "spiritplumber",
"timestamp": "2010-11-10T14:26:14",
"content": "Thanks for putting it better than I would have :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210405",
"author": "256byteram",
"timestamp": "2010-11-10T14:33:17",
"content": "There are comparator chips designed specifically to work in open-loop mode, such as the LM339. LM324’s running as comparators are painfully slow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210406",
"author": "Fallen",
"timestamp": "2010-11-10T14:43:12",
"content": "agreed, its used as a comparator",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210408",
"author": "Erik Johansson",
"timestamp": "2010-11-10T14:54:48",
"content": "What’s those the HDR1x2 and HDR1x3 in the schematic stands for?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210411",
"author": "spiritplumber",
"timestamp": "2010-11-10T15:00:03",
"content": "Header (1×2 pins) and header (1×3 pins), it just means “this is where you connect stuff to”.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "451077",
"author": "tejas mehta",
"timestamp": "2011-09-09T06:46:23",
"content": "Hi there – great video. Where can I find schematics + source code? I would like to do something similar with Windows Phone.Thanks!",
"parent_id": "210411",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210412",
"author": "Lars",
"timestamp": "2010-11-10T15:07:11",
"content": "Would like to see a port to iOS!I wonder if the mic-in can be used as a serial input, too. with some software processing on the input signal (software-comparator..) that should be possible?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210414",
"author": "spiritplumber",
"timestamp": "2010-11-10T15:10:37",
"content": "I’m working on serial input — it’s doable, and right now I have it running at 9600bps, but it requires the phone to do nothing else in the meantime (so everything freezes, etc. it will not even ring if there’s a call). That’s not really real-world usable, so I’ll keep messing with it for a while before I release anything :)Agreed on the 324 not being very good as a comparator. However, it’s easy to find (Radio Shack still has them in their parts bins). If you look at my other schematic I try to prioritize part availability over efficiency, unless it’s something I am selling prebuilt.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210416",
"author": "michael",
"timestamp": "2010-11-10T15:17:34",
"content": "For those who don’t like the opamp I got this to work using an optocoupler which gives you that nice feeling of being electrically isolated.Michael",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210418",
"author": "spiritplumber",
"timestamp": "2010-11-10T15:25:47",
"content": "He also did it way before me albeit at lower baudrate. Mike, am I crediting you visibly enough in the app?Again, the choiche of a LM324 was simply due to the fact that it’s possible to go out and buy one without having to order it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210426",
"author": "Necromant",
"timestamp": "2010-11-10T15:48:16",
"content": "@spiritplumberWell, looks like I’ll go port your sources to plain C ASAP. I have an old HP VectraPC (i486DX2@66Mhz+8mb ram) running linux from 4GB CF card, stuffed with 2 LPT ports, 4 RS232, 10mbit network card, and I still have 2 ISA slots free. This may add some more TTL level uarts there definetely, since I have several ISA sound cards lying around. Really looking forward for your input handling code. Thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210427",
"author": "spiritplumber",
"timestamp": "2010-11-10T15:55:38",
"content": "For a PC of that vintage, I’d also look into joystick ports if you want analog in, if you have any in your scrap bin. IIRC you get four 8-bit analog ins and 4 ttl digital ins.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210436",
"author": "js",
"timestamp": "2010-11-10T16:13:37",
"content": "What are you going to call your invention?How about “modem” which stands for modulator-demodulator.:)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210439",
"author": "spiritplumber",
"timestamp": "2010-11-10T16:29:18",
"content": "This doesn’t really modulate anything (other than to fool the phone’s DAC into behaving). I am working on a version that does modulate a standard Hayes 300bps signal to be used with packet radio, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210480",
"author": "Brent",
"timestamp": "2010-11-10T18:45:50",
"content": "That’s really amusing. I’d look at old tarbell tape interfaces before I tried anything like this, too. Hahahah.Spiritplumber: you should be able to find an LM339 anywhere (Radio Schack) you can find an LM324 for sale retail. A tiny bit of feedback to create hysteresis is good idea in general in comparator circuits to prevent “motorboat” oscillations but you probably won’t have any trouble in this specific application since I assume you’re just cleaning up and level-translating a square wave?Necromant: you can probably get all kinds of wild ISA multi-port RS232 cards, digital I/O cards, data acquisition cards, etc on ebay for less money and hassle that it would take to try and rig sound cards as general purpose I/O.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210524",
"author": "Necromant",
"timestamp": "2010-11-10T21:07:09",
"content": "@ spiritplumberYep, I’ve already hooked those and have a full-blown software stack running in it, supporting most of the hardware. And still 3.5mb memory free. The PC is headless with klone for the web-based ui and some wrapper scripts on my main pc) (eg. remote-avrdude)However there’s a real shortage in uarts, since the existing ones are already used for several programmers, DIY lab power supply, and etc.And I’m too lazy to reconnect that, when I need something else. Since old sound cards acually have a plenty of outputs and inputs that can be selected. (CD-IN, AUX-IN, etc) this can really extend the interfaces of this unit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210528",
"author": "Necromant",
"timestamp": "2010-11-10T21:16:12",
"content": "@Brent I have a sh*tload of ’em around, I got them for free several years ago. If you live somewhere near Moscow/Russia – I can even share some.It’s just the pc that doesn’t work with more than 2 LPT ports (1 internal and 1 on the expansion card) and 4 RS232 (2 internal + 2 external). I can use jumpers to configure LPTs as LPT1, LPT2, LPT3 and BIOS even thinks that’s OK, but just linux doesn’t see one of the ports then and I cannot actually use it, so that looks like the max.I’ll do more testing, this hack is still work in progress… May be I’ll even take some photos and send ’em to HaD someday.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210619",
"author": "smudgeface",
"timestamp": "2010-11-11T00:25:23",
"content": "Hey let’s send serial data over lines designed to carry audio. We could even modulate it in such a way as to provide error recovery by using coding techniques……I bet this has never been done before :/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210698",
"author": "itwerx",
"timestamp": "2010-11-11T03:47:29",
"content": "Wonder if the opto-coupler approach could be used with an analog phone line to do DTMF…? (Need the mic in as well of course). “Ana-droid-a-log” phone anyone? :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210855",
"author": "spiritplumber",
"timestamp": "2010-11-11T14:32:32",
"content": "DTMF was done — with a few changes in my app, you can also output modem tones directly, only up to 300bps though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210900",
"author": "michael",
"timestamp": "2010-11-11T17:15:39",
"content": "I love the idea of dtmf exceptI I can’t find a good source of decoder chips and am unwilling to write the dtmf decoding code on an arduino (I’m lazy).when the code is so simple why not use the builtin uart system, its got buffers and everything you need!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210958",
"author": "Simon",
"timestamp": "2010-11-11T19:36:57",
"content": "thanks a lot hackaday for posting this article and even a bigger thank to robotseverywhere. i tried to build and program the connection to arduino over sound by myself but gave it up. now i can use this easy solution. thanks a lot!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211278",
"author": "M H",
"timestamp": "2010-11-12T07:46:31",
"content": "So, could you use something like this, paired with an appropriate circuit on a line in or microphone in to talk to something like a 1-wire bus?(Specifically thinking of an XO-1, which is lacking in things like I/O ports. Thought it might be interesting if a simple circuit and some software would let you set it up to talk to sensors.Make a nice little data logger/display.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212184",
"author": "spiritplumber",
"timestamp": "2010-11-14T03:59:38",
"content": "I’m messing with the line-in stuff. Don’t expect anything for a while because NASA has my development phone for a few days. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "319580",
"author": "Xenon",
"timestamp": "2011-01-31T15:17:13",
"content": "I have built the circuit and try to test it using the wav file inhttp://www.flakelabs.com/. but i just get a mess of word… i would like to how what is the detail procedure to adjust the resistor. thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "361594",
"author": "spiritplumber",
"timestamp": "2011-03-18T05:16:10",
"content": "To adjust the resistor, just set it a little above zero. Email me for surce code!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "363012",
"author": "apolo8",
"timestamp": "2011-03-19T21:22:26",
"content": "Sorry,no PCB for noobs?-Fascinating the idea of programing devices without a pc…-Simply Amazing…Thanks robotseverywhere",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "400194",
"author": "spiritplumber",
"timestamp": "2011-05-31T18:02:25",
"content": "This works differently than what flakelabs did — a lot fewer parts for one. You can get the serial port demo app on android market by searching “serial out”, it’ll be in the first five results.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "686063",
"author": "Neo",
"timestamp": "2012-06-22T14:31:08",
"content": "@spiritplumberGreat and cheap solution.I am just new with electronics and need help.S you are saying that only this circuit that you have given in the link below can be used with some device .like i want to use it with arduino UNO.Please reply i really need thishttp://robots-everywhere.com/re_wiki/index.php?title=File:Derpserial.png",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "792839",
"author": "kay",
"timestamp": "2012-09-22T05:32:30",
"content": "This circuit will work with the arduino uno, yes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "914081",
"author": "Neo",
"timestamp": "2013-01-06T07:03:01",
"content": "Yes it works great .made it then used it in many of my apps where ever i needed just the TX from android.take a lookhttp://mzubair.com/getting-serial-output-from-androids-audio-port/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,339.650338
|
||
https://hackaday.com/2010/11/09/beginner-concepts-leds-and-laws/
|
Beginner Concepts: LEDs And Laws
|
Devlin Thyne
|
[
"hardware",
"LED Hacks",
"Parts"
] |
[
"adafruit",
"beginner concepts",
"led"
] |
Adafruit has a
new LED tutorial
for people wanting to get started with electronics. It is full of useful diagrams, pictures, and quizzes to help make sure you are understanding the concepts. This is the real basic stuff here: LEDs, resistors, and the laws from Kirchhoff, and Ohm. It starts out explaining the parts of an LED. Then variations of LEDs: illumination versus indication, clear versus diffused, brightness, color, and size. The mass of the tutorial covers how and why an LED’s brightness can be changed by a resistor and why a resistor is needed to keep an LED from burning out. Such as how Kirchhoff’s Voltage Law works with Ohm’s Law to help you determine the proper resistor for an LED. If you found useful the other beginner concepts posts about
Analog Circuits
and
Electronics basics from the Giz
, you should find this tutorial to be useful.
| 19
| 19
|
[
{
"comment_id": "210219",
"author": "nizon",
"timestamp": "2010-11-10T01:20:49",
"content": "The positive side is longer, should you ever feel the need to bend it into a + sign :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210231",
"author": "jamieriddles",
"timestamp": "2010-11-10T01:46:30",
"content": "might be worth mentioning that the positive side is skinnier inside the led (left side in this picture) if for example the led’s leads were cut",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210235",
"author": "Erik Johnson",
"timestamp": "2010-11-10T02:02:55",
"content": "That’s a bad LED example, many have a ridge at the base with a flat/missing side on the negative.Also, the site states current flows from + to – I thought it was the opposite?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210239",
"author": "Drew",
"timestamp": "2010-11-10T02:22:54",
"content": "I don’t think the tutorial directly tells you how to pick a limiting resistor. It spends a lot of time tiptoeing around it, though, and you’d be able to figure it out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210246",
"author": "Haku",
"timestamp": "2010-11-10T02:46:15",
"content": "A CR2016 button cell is a great way to find out the polariy of an LED because it delivers 3v with very low ampage, I go through a lot of them with my Micro PhotonLight keychain torches so I always have a few old ones kicking about, second to that if it’s clear I look at the insides.When calculating resistor values for multiple LED arrays I find this calculator invaluable:http://led.linear1.org/led.wiz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210252",
"author": "Noodle",
"timestamp": "2010-11-10T03:07:34",
"content": "@Haku – Or just use Ohms law :P(Vsource – Vled)/Iled",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210275",
"author": "Cindy Auligny",
"timestamp": "2010-11-10T04:08:39",
"content": "As the title mentions about, this tutorial is just for the beginners. It spends a lot of time telling the basic information that you’d figure out yourself.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210303",
"author": "bluewraith",
"timestamp": "2010-11-10T05:14:03",
"content": "I’ve noticed that looking at the inside of the LED isn’t the best way of telling polarity. I have LEDs from Kingbright that are reversed on the inside, with the anvil being positive and the post being negative.I know I’m not looking at it wrong, as I have red and green set up in an 8×8 array with negative all one way, and the red leds are clearly backwards on the inside. The LEDs in my girlfriends ARDX kit are the same way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210314",
"author": "Casey O'Donnell",
"timestamp": "2010-11-10T06:06:21",
"content": "@bluewraith i totally agree.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210332",
"author": "Rajesh",
"timestamp": "2010-11-10T07:53:56",
"content": "Totally agree with Drew.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210338",
"author": "kyle",
"timestamp": "2010-11-10T08:48:29",
"content": "@Erik: electrons flow from negative to positive. however charge flows from positive to negative (as electrons have negative charge). but you rarely need to worry about this",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210356",
"author": "smoker_dave",
"timestamp": "2010-11-10T10:30:43",
"content": "“Conventional current flow” is positive to negative.Current actually flows the opposite direction, but this wasn’t discovered for a few hundred years. So books stick with the “convention”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210403",
"author": "fartface",
"timestamp": "2010-11-10T14:22:00",
"content": "junk china surplus led’s are NOT always that way.I have 100 super bright blue ones that the longer is – and the flat is on the +",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210419",
"author": "him",
"timestamp": "2010-11-10T15:27:14",
"content": "I realize this is an intro, but isn’t it a disservice to refer to it as ‘positive’ or ‘negative’ leads? I saw this article and thought I’d see a flood of comments on this, but nope – still labeling it ‘positive’ and ‘negative’ leads of an LED.Cathode … Anode.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210499",
"author": "Erik Johnson",
"timestamp": "2010-11-10T19:47:15",
"content": "@kyle interesting, after a bit of reading “charge” cannot actually flow through metals (e.g. LED leads, solder, traces, wires, most battery terminals) thus all that’s possible is current. Am I understanding that right? Plus LEDs are current devices, though I don’t know if that’s relevant.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210520",
"author": "Funky Gibbon",
"timestamp": "2010-11-10T20:51:28",
"content": "Has anyone mentioned using LEDS as light sensors yet?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210634",
"author": "Whatnot",
"timestamp": "2010-11-11T00:49:35",
"content": "@Funky GibbonWhen pluralizing acronyms please either use a lowercase s or an apostrophe ‘s (or no s at all if it’s clear from the context).By using a capital S you create a new confusing acronym instead of pluralizing it.But you are right the use as sensor is an interesting factoid about LED but perhaps not a basic thing in a tutorial for beginners that has subjects like ‘what is a switch?’ :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210798",
"author": "Whatnot",
"timestamp": "2010-11-11T08:49:02",
"content": "I saw an interesting thing on a LED x-mas light, to make the light shine out more globular (I presume) they drilled a cone in the top of the LED so you also see it better from the side.Thought I’d share that observation in this LED topic because somebody might be able to do something with it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211769",
"author": "Dan Fruzzetti",
"timestamp": "2010-11-13T06:10:16",
"content": "I have here some yellow LEDs from jameco which are actually backwards, having negative on the short lead inside the LED (usually positive is on the short end). The longer lead is correctly attached to the positive end, but I had always been determining positive versus negative by looking inside the LED glass itself.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.17264
|
||
https://hackaday.com/2010/11/09/propeller-and-machine-gun-timing/
|
Propeller And Machine Gun Timing
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"airsoft",
"gun",
"interrupter gear",
"pellet",
"propeller",
"synchronize"
] |
[Matt] was looking for a challenge. Inspired by the machine gun setups on World War I planes he wanted to make
a gun that can shoot between the blades of a spinning propeller
. The original guns used
an interrupter gear
that synchronized machine gun firing with the engine mechanically. [Matt] set out to do this using a microcontroller.
To make this work there are two important pieces of information; how fast is the propeller spinning right now, and how long does it take for the pellet to pass the blade? [Matt] used an oscilloscope and some infrared sensors to establish the firing delay at about 20-22ms. Another sensor shows the propeller is spinning at 500 RPMs, with some simple calculations showing that there is indeed a big enough window of time to fire between the blades. After testing with a visible LED and then building out the rest of the circuitry he accomplished his goal. He even added a test function that purposely hits the blades just to see how accurate the system was. We hope this shows up in a Red Baron RC replica, or
other flying arsenal
.
[via
Hacked Gadgets
]
| 13
| 13
|
[
{
"comment_id": "210211",
"author": "biozz",
"timestamp": "2010-11-10T00:35:50",
"content": "i thought some guy 60 years ago make a simple gar for this? XDbut yeah i love the concept XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210214",
"author": "Mythgarr",
"timestamp": "2010-11-10T00:47:40",
"content": "For those non-micro purists, you could probably implement this using a rotary encoder and an AND gate. Simplest digital solution I could think of would be to have the gun fire only at position 11..1’b (for an n-bit encoder) and tie those inputs into an n+1 bit AND gate with the active-high trigger.This setup mimics the mechanical operation of the interrupter gear pretty closely, where the physical bump on the rotor and the trigger must both be active in order for the machine gun to fire.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210242",
"author": "biozz",
"timestamp": "2010-11-10T02:29:22",
"content": "gear*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210297",
"author": "awz",
"timestamp": "2010-11-10T04:50:39",
"content": "This would be awesome in a airsoft war with a rc plane, monitor and a semi auto machine gun, sit in a fort while gunning down your enemies. I can also see this working quite well on my neighbors cat…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210313",
"author": "ChalkBored",
"timestamp": "2010-11-10T06:03:06",
"content": "This is a project that would benefit from the usage of high speed photography in the documentation of it.@biozz, try nearly 100 years ago.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210340",
"author": "wouter",
"timestamp": "2010-11-10T08:58:46",
"content": "omg, this would be so awesome. I really really hope someone puts this in his RC plane. But I’m wondering how much work (and weight) it should be..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210371",
"author": "bob",
"timestamp": "2010-11-10T11:42:37",
"content": "RPM not RPMs*@mythgarran edge detector for an ir sensor pointed at the blade would not require the encoder.test",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210373",
"author": "Concerned Citizen",
"timestamp": "2010-11-10T11:55:45",
"content": "This is dangerous!What if his workbench takes off and starts massacring people?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210383",
"author": "saimhe",
"timestamp": "2010-11-10T12:56:30",
"content": "@bob…and the detector must be moveable so that one can set the timing like in a gas engine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210394",
"author": "Mattman",
"timestamp": "2010-11-10T13:58:01",
"content": "@chalkboardSome of the casio Exilim series of digital cameras can shoot 1000fps, at low resolution. Since the bullet is moving at about 100 feet per second, we could get 10 frames per foot of travel of the bullet. It would be interesting to try…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210440",
"author": "Andrew",
"timestamp": "2010-11-10T16:31:15",
"content": "My amusement would be complete if he had only used a parallax propeller mcu.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210476",
"author": "Spayum",
"timestamp": "2010-11-10T18:38:35",
"content": "Or, you know….. he could’ve just built an interrupter gear. Which in the greater scheme of things would’ve gotten him a thousand times more respect form me. I’m tired of people stooping to using computers to solve problems that are easily solvable using analog solutions.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210636",
"author": "alan turing's dog",
"timestamp": "2010-11-11T01:16:43",
"content": "“I’m tired of people stooping to using computers to solve problems that are easily solvable using analog solutions.”That’s great. Let me guess, you routinely solve route-optimization problems using bits of string, and your carb-equipped flivver always starts on the first kick of the hand-cranked starter.You have a large collection of vintage tube operated radio and stereo gear, and you can design an accurate eighth-order notch filter using only a slide rule and a cup of tea. Your checkbook is accurately balanced on a small portable difference engine. The sign at your favorite tavern says “We don’t serve square waves here” and your motorcycle of choice is an aging gear-valved ducati which smokes a little.If this is the case, your definition of easy might be different from most folks. That’s OK. But having seen dismantled interrupter gear mechanisms designed for cannon (BF109) and machine guns, I’d have to say it might be time to cut a new cam for your inference mechanism.I’ll take 25 lines of assembly and a photo-interrupter any day over 25 lbs of dead weight and twisted shafts. General Electric apparently thought so too, which is why almost all aircraft machine guns are of the electrically fired Gat variety.PS – as a small semi-fictitious talking dog, I’m somewhat offended by your user name.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.013049
|
||
https://hackaday.com/2010/11/09/solderless-drawdio-terminally-implemented/
|
Solderless Drawdio Terminally Implemented
|
Joseph Thibodeau
|
[
"digital audio hacks",
"Portable Audio Hacks"
] |
[
"drawdio",
"music",
"pencil",
"synth",
"toys"
] |
So you’re stuck in a boring class and you can’t fight off the urge to hack something, even your pencil, to pass the time. Maybe you are performing a live electronics show and you drop your synth down a flight of stairs and all that you are left with is a handful of components, a screw terminal block and a pencil. There are thousands, perhaps millions of these kinds of situations and for each one the answer is the
solderless drawdio clone
by [Martin].
You may have seen the original
Drawdio
here before, a fun piece of technology that is
simple enough to recreate
. This latest approach would make an excellent introductory project for a hacking workshop seeing as the guide is straightforward and the lack of soldering would make logistics so much easier. The results are very similar to the original–check the video after the break.
[youtube=http://www.youtube.com/watch?v=ooOPQ4h2pq0]
| 5
| 5
|
[
{
"comment_id": "210178",
"author": "Eirinn",
"timestamp": "2010-11-09T23:09:33",
"content": "Y’know, if they modded it to follow a scale; Say the pentatonic one – it would also sound good :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210266",
"author": "ejonesss",
"timestamp": "2010-11-10T03:36:26",
"content": "now the site does not respond",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210304",
"author": "Erik Johnson",
"timestamp": "2010-11-10T05:16:47",
"content": "Site’s been down forever,but just from the picture above its a simple flop-flop circuit sans one complimentary resistor.The video shows that that resistor is instead wired as the pencil lead on one end and tin foil wrapped around the pencil as the other end.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210335",
"author": "Oliver",
"timestamp": "2010-11-10T08:22:19",
"content": "Site got hackaday’d.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210382",
"author": "Martin Thompson",
"timestamp": "2010-11-10T12:49:48",
"content": "Sorry – it would appear my webserver is to weedy to be up to the job of being linked to from hackaday!@Erik, yes, it’s a simple flip-flop circuit, although not in the “textbook” configuration, the transistors are stacked up.I’ll try and get things back up tonight!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,339.768943
|
||
https://hackaday.com/2010/11/09/ros-turns-three/
|
ROS Turns Three
|
Chris Nelson
|
[
"Robots Hacks"
] |
[
"library",
"os",
"robot"
] |
Since its first debut three years ago,
ROS
has been gaining some
popularity
with the robotics folks. It’s behind the scenes of those impressive
quadcopters
you may remember from a while back. ROS helps abstract the lower level functions of a robot by supplying lots of code for commonly used components (
wiimote
for example). Being an “operating system” it comes with lots of nice features you would expect, like a package manager. It’s open source and many of their projects are well
documented
making it easy get started.
Check out the video after the break to see it in action
[youtube=http://www.youtube.com/watch?v=7cslPMzklVo]
| 4
| 4
|
[
{
"comment_id": "210169",
"author": "Hirudinea",
"timestamp": "2010-11-09T22:23:15",
"content": "Those turtles are so CUTE!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210176",
"author": "Eirinn",
"timestamp": "2010-11-09T23:08:04",
"content": "*Sigh* why didn’t i study robotics instead of web design.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210230",
"author": "Adrian",
"timestamp": "2010-11-10T01:38:56",
"content": "@Elrinn – It’s not too late. Make up for lost time. And hell, that’s what hobbyist robotics are for. People like us.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210349",
"author": "iHME",
"timestamp": "2010-11-10T09:58:27",
"content": "Awesome robotics.Also, ‘sup Hirudinea.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.266786
|
||
https://hackaday.com/2010/11/09/debounce-code-one-post-to-rule-them-all/
|
Debounce Code – One Post To Rule Them All
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"button",
"code",
"debounce"
] |
Last month
we asked you to send in your debounce code
. You didn’t disappoint and it’s time to share the code received. There were some guideline for sending in code so if you don’t see yours here, it probably didn’t follow the rules, sorry. We also tried to weed out code that using delay loops for debounce. These tend to be a poor way to handle inputs because they monopolize the processor.
We wanted to add upvote/downvote buttons to each set of code to give some idea of a group consensus on code quality but there’s no good system available for multiple up/down vote widgets on one wordpress page. This results in a huge code dump for any one person to go through. If you’ve got any ideas on how to better organize this let us know:
debounce@hackaday.com
.
We make no guarantees that this code is safe to use, or that it even works. Test it carefully before using for important tasks.
Join us after the break for a whirlwind of code examples.
Ned’s Debounce Code
Ned sent in a package of debounce code that monitors multiple buttons, debounces them, and detects button hold and release.
Main.c:
/*****************************************************************************************
* Project: Button Code
* Version: V1.0
* Client: ProTechNZ
* Date Created: 22/07/2010
* Date Modified: 23/07/2010
* Author: Neil van Geffen
* Company: ProTech NZ
* Micro: ATMega128
* Speed: 8MHz
* Clock Source: Internal
*****************************************************************************************/
/************************* Defines *******************************************************/
#include <io.h>
#include <stdlib.h>
#include <string.h>
#include <delay.h>
#include "NedsStandardHeader.h"
#include "C Files\buttons.h"
#define BTN_UP 0x01
#define BTN_DOWN 0x02
#define BTN_ENTER 0x04
#define BTN_CLEAR 0x08
/************************* Structs and Enums *********************************************/
/************************* Function Prototypes *******************************************/
unsigned char TimeYet(unsigned int time);
unsigned int TimeDiff(unsigned int past, unsigned int future);
void USART0SendByte(unsigned char byteToSend);
void USART1SendByte(unsigned char byteToSend);
void USART0SendArray(unsigned char *array, unsigned char noOfBytes);
void USART0SendString(unsigned char *string);
void USART0SendStringF(flash unsigned char *string);
/************************* Global Variables***********************************************/
unsigned char tempByte;
unsigned int tempWord;
unsigned char pA, pB, pC, pD;
unsigned char releaseCounter;
volatile unsigned int isrTime;
unsigned int currentTime;
unsigned int timeButtons;
unsigned int clearPressed;
/************************* Setup Code ****************************************************/
void SetupPorts (void) {
PORTA = 0x00;
PORTB = 0x00;
PORTC = 0x00;
PORTD = 0x04; // RXD1 (2)
PORTE = 0x01; // RXD0 (0)
PORTF = 0x00;
DDRA = 0xF0;
DDRB = 0xFF;
DDRC = 0xFF;
DDRD = 0xFF; // TXD1 (3)
DDRE = 0x02; // TXD0 (1)
DDRF = 0xFF;
}
// 1mS timer
void SetupTimers (void) {
TCCR0 = (0 << FOC0) | (0 << WGM00) | (0 << COM01) | (0 << COM00) | (1 << WGM01) | (1 << CS02) | (0 << CS01) | (0 << CS00); // CTC 8e6/64/125 = 1KHz
OCR0 = 124;
TIMSK |= (1 << OCIE0);
}
/************************* Main Code *****************************************************/
void main(void) {
SetupPorts();
SetupTimers();
SREG.7 = 1;
while (1)
{
SREG.7 = 0; // Atomic Time Keeping
currentTime = isrTime;
SREG.7 = 1;
pC &= 0x07; // keep pC to a max of 7
pD &= 0x07; // keep pD to a max of 7
PORTB = btnStatus.lastCount; // output number of buttons pressed to LEDs on PortB
PORTC = (0x80 >> pC); // output a counter to PortC
PORTD = (0x80 >> pD); // output a counter to PortD
if (TimeYet(timeButtons)) { // Time to run this bit of code yet
timeButtons += 5; // Set the next time to 5mS away (can be any value really)
UpdateButtons(currentTime); // Update the buttons
}
if (buttons.held) { // If any button is held
PORTF &= 0x0F; // clear the high nibble off PortF
PORTF |= (buttons.held << 4); // and output the buttons held to PortF high nibble
clearPressed = currentTime + 20; // set the clearPressed time to 20ms (used to clear the LEDs after 20ms)
switch (buttons.held) { // do something depending on what buttons are held (can do a "case BTN_UP | BTN_DOWN:" if you wanted to as well)
case BTN_UP: pD++; break;
case BTN_DOWN: pD--; break;
case BTN_ENTER: pC++; break;
case BTN_CLEAR: pC--; break;
default: pB++;
}
buttons.held = 0; // Clear the buttons held flags
}
if (buttons.pressed) { // if a button is pressed
PORTF &= 0xF0; // clear the low nibble
PORTF |= buttons.pressed; // and set the current puttons held to the low nibble
clearPressed = currentTime + 200; // set the clearPressed time to 200ms to get it to clear the LEDs after 200ms
switch (buttons.pressed) { // do something depending on what buttons are pressed
case BTN_UP: pD++; break;
case BTN_DOWN: pD--; break;
case BTN_ENTER: pC++; break;
case BTN_CLEAR: pC--; break;
default: pB++;
}
buttons.pressed = 0; // clear the buttons pressed flags
}
if (buttons.released) { // if any buttons are released
releaseCounter++; // increment the release counter
PORTF = 0x00; // clear PortF LEDs
PORTA &= 0x0F; // clear the PortA high nibble
PORTA |= (releaseCounter << 4); // and set what buttons were released to tht PortA LEDs
switch (buttons.released) { // do something on a button release
case BTN_UP: pD = 0; break;
case BTN_DOWN: pD = 7; break;
case BTN_ENTER: pC = 0; break;
case BTN_CLEAR: pC = 7; break;
default: pB++;
}
buttons.released = 0; // clear the button released flags
}
if (TimeYet(clearPressed)) { // if we should clear the LEDs
clearPressed = currentTime; // stop the time from wrapping-over
PORTF = 0x00; // clear the LEDs
}
}
}
/************************* Functions *****************************************************/
unsigned char TimeYet(unsigned int time) {
if (((time - 1) - currentTime) > 0xF000) { // if the time has passed (will roll around when not serviced for 4095 counts)
return 1; // the time has passed
}
else return 0; // or else it has not yet passed
}
/************************* Interrupts ****************************************************/
interrupt [TIM0_COMP] void TimerZeroCompare (void) {
isrTime++; // Keep Time
}
Buttons.h:
/************************************* START OF LIBRARY COMMENTS *******************************
* Library Name: Neds Button Code
* Version: V1.0
* Created: 22/07/10
* Last Mod: 23/07/10
* CV Version: 2.04.8a
* Author: Neil van Geffen
* Company: ProTechNZ
* Purpose: Read 4 buttons and return button presses, helds and releases.
************************************************************************************************/
/************************************* KNOWN BUGS **********************************************
*
************************************************************************************************/
/************************************* NOTES ***************************************************
* The code will decode the button presses into presses, holds and releases.
* A press is a press AND release before a hold is registered
* A hold is a press held long enough to register as a hold.
* A hold will automatically repeat itself at an increasing rate
************************************************************************************************/
#define BUTTONS (PINA & 0x0F) // Make the buttons the lower nibble active high (use ~ to get active low buttons to appear as active high)
#define REPEAT_MAX 250 // The start value of repeat debouncing when first pressing a button
#define REPEAT_MIN 25 // The lowest value of repeat debouncing when first holding a button
#define SPEED_SHIFT 3 // The repeat value decreases by the current repeat value >> by this value (aka 4 means it decreases by 1/16th every time)
#define DEBOUNCE_PRESS 25 // The debounce for a single press
#define DEBOUNCE_HOLD 600 // The debounce for a button hold
struct {
unsigned int pressed:4; // holds which buttons have been pressed and released
unsigned int held:4; // holds which buttons have been held for more than DEBOUNCE_HOLD
unsigned int released:4; // holds which buttons have been released after a button was held
} buttons;
#pragma used+
/***** UpdateButtons
* Read 4 buttons (defined as BUTTONS above)
* and save them to the buttons struct.
* Best if called on a regulat basis like every 10mS.
* Calling more often will give better resolution on button presses.
----------
* @param - curretTime, the current time to compare the last press too to calculate debounce and press held length
*****/
void UpdateButtons(unsigned int currentTime);
#pragma used-
#include "buttons.c"
Buttons.c:
/************************************* START OF LIBRARY COMMENTS *******************************
* Library Name: Neds Button Code
* Version: V1.0
* Created: 22/07/10
* Last Mod: 23/07/10
* CV Version: 2.04.8a
* Author: Neil van Geffen
* Company: ProTechNZ
* Purpose: Read 4 buttons and return button presses, helds and releases.
************************************************************************************************/
/************************************* KNOWN BUGS **********************************************
*
************************************************************************************************/
/************************************* NOTES ***************************************************
*
************************************************************************************************/
#define BUTTON_COUNT ((BUTTONS && (BUTTONS & (1 << 0))) + (BUTTONS && (BUTTONS & (1 << 1))) + (BUTTONS && (BUTTONS & (1 << 2))) + (BUTTONS && (BUTTONS & (1 << 3))))
#warning By compiling Neds button code, you acknowledge he is the man!
struct {
unsigned char heldFlag:1; // used by neds code, never change
unsigned char decreaseFlag:1; // used by neds code, never change
unsigned char lastStatus:4; // used by neds code, never change. The last valid combination of buttons pressed
unsigned char lastCount:4; // used by neds code, never change. The number of buttons held at one time
unsigned int time; // used by neds code, never change. The time the button press was changed
unsigned int repeat; // used by neds code, never change. The time between button held repeats
} btnStatus;
unsigned int TimeDiff(unsigned int past, unsigned int future) {
if (((future - 1) - past) > 0xF000) return 0;
else return future - past;
}
void UpdateButtons(unsigned int currentTime) {
if (TimeDiff(btnStatus.time, currentTime) >= DEBOUNCE_HOLD) { // If a button has been held
if (btnStatus.decreaseFlag) { // if the button count was lowered earlier but they have remained the same for the length of a hold time
btnStatus.decreaseFlag = FALSE; // clear the flag that states it was lowered
btnStatus.lastStatus = BUTTONS; // and set the button status to the currently pressed buttons
}
buttons.held = btnStatus.lastStatus; // Set what buttons were held
btnStatus.time += btnStatus.repeat; // and set the time to repeat the next press
btnStatus.repeat = MAX(REPEAT_MIN, btnStatus.repeat - MAX(1,(btnStatus.repeat >> SPEED_SHIFT))); // and lower the repeat value to increase the button held repeat rate
btnStatus.heldFlag = TRUE; // and set the flag that states a button was held
}
if (!BUTTONS) {
if (btnStatus.heldFlag) { // If the buttons were previously held
btnStatus.heldFlag = FALSE; // Clear the flag so it doesnt set buttons pressed continously
buttons.released = btnStatus.lastStatus; // Set what buttons were pressed previously
}
else if (TimeDiff(btnStatus.time, currentTime) >= DEBOUNCE_PRESS) { // but if the buttons werent held, but pressed for long enough to pass as a debounce
buttons.pressed = btnStatus.lastStatus; // Set what buttons were pressed
}
btnStatus.lastCount = 0; // Clear the last count
btnStatus.lastStatus = 0; // Clear the last Status
btnStatus.time = currentTime; // clear the last press time
}
else if (BUTTON_COUNT > btnStatus.lastCount) { // if the number of buttons pressed has changed
btnStatus.lastCount = BUTTON_COUNT; // save it for next time.
btnStatus.lastStatus = BUTTONS; // and save what buttons were pressed.
btnStatus.decreaseFlag = FALSE; // clear the flag that says the button presses just decreased.
btnStatus.time = currentTime; // reset the time of last button presses.
btnStatus.repeat = REPEAT_MAX; // and reset the time between held repeats.
}
else if (BUTTON_COUNT && (BUTTON_COUNT < btnStatus.lastCount)) { // Or if the button count deceased but a button is still pressed
btnStatus.lastCount = BUTTON_COUNT; // save the count for next time
btnStatus.decreaseFlag = TRUE; // set the flag to say this happened
btnStatus.time = currentTime; // reset the time of last button presses.
btnStatus.repeat = REPEAT_MAX; // and reset the time between held repeats.
}
else if (!btnStatus.decreaseFlag && (BUTTONS != btnStatus.lastStatus)) { // If someone changed button presses but not the count
btnStatus.lastCount = 0; // Force the count to change next time around so the code to set times etc isnt in 2 places.
} // This is a fairly useless bit of code if the service time is less than 10mS and even if its more, it won't be all that usefull.
}
S1axter’s Debounce Code
Developed for PIC24 chips, this code repeatedly calls a function to check a pin state.
pin_io.h:
//////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Pin I/O control module - Header
//
// Language: Microchip C30
//
// File: pin_io.h
// Author: MyBitBox.com/Geeksinside.com
// Created: 08/23/09
//
//////////////////////////////////////////////////////////////////////////////////////////////////////
#ifndef __PIN_IO_H__
#define __PIN_IO_H__
void pin_io_init(void);
void pin_input_check(void);
#endif
pin_io.c:
//////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Pin I/O control module
//
// Language: Microchip C30
//
// File: pin_io.c
// Author: MyBitBox.com/Geeksinside.com
// Created: 08/23/09
//
//////////////////////////////////////////////////////////////////////////////////////////////////////
typedef struct{
uint16 mask;
uint16 last_state;
uint8 changed;
}pin_check_struct;
pin_check_struct inputA, inputB;
//====================================================================================
// Set up the pins
//====================================================================================
void pin_io_init(void)
{
inputA.changed = FALSE;
inputA.last_state = FALSE;
inputA.mask = BMASK(2); // look at PORTB2
inputB.changed = FALSE;
inputB.last_state = FALSE;
inputB.mask = BMASK(4); // look at PORTB4
return;
}
//====================================================================================
// This is the debounce routine. When this is called it checks for consistant pin states
//====================================================================================
void pin_input_check(void)
{
uint16 portb_snapshot = PORTB;
// This is for the XXXXX input
// ------------------------------------------------------
if(inputA.changed == TRUE)
{
if(!((portb_snapshot ^ inputA.last_state)&inputA.mask))
{
// If the line was changed last time, and it is the same state as last
// time, then we need to lock it in here (If the bits are not the same then this routine
// will be called again and the correct value will be locked in)
if(portb_snapshot & inputA.mask)
{
// Do this when the line goes high
SYS_STATUS.FLAG_XXXXX_LINE = TRUE;
}else{
// Do this when the line goes low
SYS_STATUS.FLAG_XXXXX_LINE = FALSE;
}
// Clear the changed flag
inputA.changed = FALSE;
}
}
// Mask out any changed input pins
inputA.changed = ((inputA.last_state ^ (portb_snapshot & inputA.mask))>0); // XOR with last last_state to find changed pins
inputA.last_state = portb_snapshot & inputA.mask;
// This is for the YYYYY input
// ------------------------------------------------------
if(inputB.changed == TRUE)
{
if(!((portb_snapshot ^ inputB.last_state)&inputB.mask))
{
// If the line was changed last time, and it is the same state as last
// time, then we need to lock it in here (If the bits are not the same then this routine
// will be called again and the correct value will be locked in)
if(portb_snapshot & inputB.mask)
{
// Do this when the line goes high
SYS_STATUS.FLAG_YYYYY_LINE = TRUE;
}else{
// Do this when the line goes low
SYS_STATUS.FLAG_YYYYY_LINE = FALSE;
}
// Clear the changed flag
inputB.changed = FALSE;
}
}
// Mask out any changed input pins
inputB.changed = ((inputB.last_state ^ (portb_snapshot & inputB.mask))>0); // XOR with last last_state to find changed pins
inputB.last_state = portb_snapshot & inputB.mask;
return;
}
//end
Aaron Keith’s Debounce Code
This code is tailored for an 8051 processor.
Button_debounce_8051.c:
/*--------------------------------------------------------------------------
10/14/2010: Button debounce code by Aaron Keith
This code detects and debounces button presses. It is tailored for use with
8051 micro controllers. Complied on the RIDE 51 Complier
The interrupt service routine (ISR) runs 3600 times per second. If the
button is pressed (the pin is connected to GND) Key_Hit is incremented to the
maximum 255. When the button is released Key_Hit will decremented to 0.
Long_Key_Hit will increment more slowly and is used to detect the button
being help down.
--------------------------------------------------------------------------*/
#include<reg51.h>
#define TRUE 1
#define FALSE 0
//define pins used by buttons
at 0x97 sbit P1_7 ;
#define BUTTON P1_7 //Button on Port 1.7
//De bounce variables
unsigned char Key_Hit;
unsigned char Long_Key_Hit;
/*--------------------------------------------------------------------------
Prototypes
--------------------------------------------------------------------------*/
void init_timers(void);
/*--------------------------------------------------------------------------
FUNC: - Sets and starts a system timer
PARAMS: NONE
RETURNS: NONE
--------------------------------------------------------------------------*/
void init_timers(void) // using a 11.0592 Mhz Clock
{
TMOD = 0x02; //T0 mode 2 8 bit reload
// Timer 0 is system tick
TH0 = 0x00; // Reload = 256, giving 921600/256=3600
TL0 = 0x00;
ET0 = TRUE; // Enable interrupt on timer 0
TR0 = TRUE; // Start timer 0;
EA = TRUE;
}
/*--------------------------------------------------------------------------
FUNC: - Main
--------------------------------------------------------------------------*/
void main(void)
{
init_timers(); //start the timer
for (;;) //loop forever
{
if (Key_Hit == 0xff)
{
//Key press detected. Do something here
}
if (Key_Hit == 0x00)
{
//Key release detected. Do something here
}
if (Long_Key_Hit == 0xff)
{
//Key press and help down. Do something here
}
}
}
/*--------------------------------------------------------------------------
INTERRUPT: // The procedure runs 3600 times per second
--------------------------------------------------------------------------*/
void Timer0_interrupt(void) interrupt 1
{
static unsigned char Div18Counter = 0;
if (BUTTON)
{ // Button up (Pin is connected to VCC)
if (Key_Hit != 0) // Will never go below zero
{
Key_Hit--;
}
}
else
{ // Button down (Pin is connected to GND)
if (Key_Hit != 0xff) // Will never go above 255
{
Key_Hit++;
}
}
if (++Div18Counter >= 18) // run ever 5 mSec
{
Div18Counter = 0;
if (Key_Hit == 0xff)
{
if (Long_Key_Hit != 0xff)
Long_Key_Hit++;
}
else if (Key_Hit == 0x00) // No delay when detecting key release.
Long_Key_Hit = 0x00;
}
}
Thomas Flayols’ Debounce Code
This code creates a software-based low-pass filter by taking a moving average of the pin value.
// Hi, to prevent contact bounce, my solution is to create software low pass filter by using a moving average...(no delay solution) see the jpg to see what's happen
// INPUT is the button input pin(0if not pressed, 1 if pressed)
main(void)
{
unsigned char button = 0;
while(1)
{
// your code here...
button=(button * 9+INPUT * 10)/10; // do a moving average of the digital input... result button between 0 and 10
if (button > 5)
{
//the button is ON
}
else
{
//the button is OFF
}
}
}
Ganesh Krishna’s Debounce Code
Can be scaled to any number of buttons, sample rate is configurable, and this aims to use as little RAM as possible
dbounce.c:
#include <htc.h>
/* Scalable software debounce for buttons
*
* This is quick implementation of software debounce with as little RAM as possible.
* stress is given to scalability of number of buttons
* and scalability of number of samples per debounce cycle.
*
* While this file is written for PIC Microcontroller and Hi-tech compiler,
* the debounce function itself is just C, and not hardware dependant.
*
* Use the functions at your own risk
* Author: ganesh.ksm@gmail.com
*
* Assume BSD like license.
* Acknowledge with an email if it works for you.
*
*/
/*Number of buttons in the system*/
#define MAX_BUTTONS 4
/* MAJORITY_VOTE Number of samples for which the button must remain in pressed state
* to consider that the button is pressed.
* */
#define MAJORITY_VOTE 5
/* STABILITY_BITS is the number of final samples (last few samples at the end of debounce)
* after which we consider the input stable
* */
#define STABILITY_BITS 2
/* Convert Stability bits to a bit mask, i.e STABILITY_MASK has STABILITY_BITS bits set in its LSB
* */
#define STABILITY_MASK ((1<<STABILITY_BITS) - 1)
/*This variable contains the debounced status of all buttons
at any point of time
*/
volatile unsigned int debounced_buttons;
/* Reads port pins and returns 1 if button is active (assumed active low)
* returns 0 if inactive. Microchip PIC18 specific.
* */
unsigned char Read_Portbit(int button)
{
switch(button)
{
case 0: return !RA0;
case 1: return !RA1;
case 2: return !RA2;
case 3: return !RA3;
}
}
/* Function: button_is_pressed()
* Argument: Takes the button number as argument, an index into the array of buttons.
* Returns: non zero if the button of interest is pressed for majority time of polling
* returns zero if not pressed, debouncing not complete,
* button bouced back to unpressed state
*
* Calling rate: This function will return positive only after MAJORITY_VOTE is achieved
* times with same button argument for debounce of one button.
* where X is the number of samples per debounce,
*
* Depends on: Read_Portbit(button) which returns 1 if the pin of button of interest is active and 0 if not.
*/
char button_is_pressed( unsigned char button)
{
unsigned int bit_count=0, temp;
/* button_bits[] is an array to hold the previous states of the port pin value
* Each element holds the previous samples of teh button read.
* We need as many elements as there are buttons.
* Make this an integer array if more than 8 samples are needed for debounce determination.
* if less samples are needed adjust the MAJORITY_VOTE and STABILITY_BITS to a smaller number
* */
volatile static unsigned char button_bits[MAX_BUTTONS];
/* Shift the latest read button status into the que
* we should have the latest sample in LSB and older samples
* higher up.*/
button_bits[button]=button_bits[button]<<1 | (Read_Portbit(button) & 0x01);
temp = button_bits[button];
/*Check if the input is stable in the last STABILITY_BITS samples*/
if ((temp & STABILITY_MASK) == STABILITY_MASK)
{
/* Count the number of bits set in temp, we need more than the majority
* straight out of the book of K&R, check it :-)*/
while(temp = temp&(temp-1))
bit_count++;
bit_count++; // we are off by one
/*Check if the required number of samples were favourable */
if (bit_count>=MAJORITY_VOTE)
{
button_bits[button] = 0;
return 1;
}
else
return 0;
}
else
{
return 0;
}
}
/* Call at a rate about 8 times higher than the rate at which input detection is required
* actual frequency depends on the number of samples required per debounce.
*/
void Service_user_Input(void)
{
int i;
for (i=0;i<MAX_BUTTONS;i++)
{
if (button_is_pressed(i))
debounced_buttons = debounced_buttons | 0x01<<i;
}
}
void main (void)
{
/*PIC18 specific intialization of timer interrupt*/
GIE=1;
PEIE=1;
TMR0IE=1;
T0CON= 0X48; //16 bit timer without Prescaler for interrupts
TMR0L=0xFA;
TMR0H=0xFF;
TMR0ON=1;
TRISA = 0xFF; // PORTA is input.
/*Application code starts here*/
while(1)
{
/*Do something usefull with debounced_buttons*/
}
}
void interrupt User_Input()
{
TMR0L=0x00; /*Not really needed, but lets be explicit*/
TMR0H=0x00;
TMR0ON=1;
Service_user_Input(); /*you may choose to call this in an timed function in the main thread too*/
}
Kenneth Kuhn’s Debounce Code
[Chad] has been using a modified version of
[Kenneth Kuhn’s] debounce code
for some time now. Small, fast, and well commented, it uses an integrator algorithm.
debounce.c:
/******************************************************************************
debounce.c
written by Kenneth A. Kuhn
version 1.00
This is an algorithm that debounces or removes random or spurious
transistions of a digital signal read as an input by a computer. This is
particularly applicable when the input is from a mechanical contact. An
integrator is used to perform a time hysterisis so that the signal must
persistantly be in a logical state (0 or 1) in order for the output to change
to that state. Random transitions of the input will not affect the output
except in the rare case where statistical clustering is longer than the
specified integration time.
The following example illustrates how this algorithm works. The sequence
labeled, real signal, represents the real intended signal with no noise. The
sequence labeled, corrupted, has significant random transitions added to the
real signal. The sequence labled, integrator, represents the algorithm
integrator which is constrained to be between 0 and 3. The sequence labeled,
output, only makes a transition when the integrator reaches either 0 or 3.
Note that the output signal lags the input signal by the integration time but
is free of spurious transitions.
real signal 0000111111110000000111111100000000011111111110000000000111111100000
corrupted 0100111011011001000011011010001001011100101111000100010111011100010
integrator 0100123233233212100012123232101001012321212333210100010123233321010
output 0000001111111111100000001111100000000111111111110000000001111111000
I have been using this algorithm for years and I show it here as a code
fragment in C. The algorithm has been around for many years but does not seem
to be widely known. Once in a rare while it is published in a tech note. It
is notable that the algorithm uses integration as opposed to edge logic
(differentiation). It is the integration that makes this algorithm so robust
in the presence of noise.
******************************************************************************/
/* The following parameters tune the algorithm to fit the particular
application. The example numbers are for a case where a computer samples a
mechanical contact 10 times a second and a half-second integration time is
used to remove bounce. Note: DEBOUNCE_TIME is in seconds and SAMPLE_FREQUENCY
is in Hertz */
#define DEBOUNCE_TIME 0.3
#define SAMPLE_FREQUENCY 10
#define MAXIMUM (DEBOUNCE_TIME * SAMPLE_FREQUENCY)
/* These are the variables used */
unsigned int input; /* 0 or 1 depending on the input signal */
unsigned int integrator; /* Will range from 0 to the specified MAXIMUM */
unsigned int output; /* Cleaned-up version of the input signal */
/* Step 1: Update the integrator based on the input signal. Note that the
integrator follows the input, decreasing or increasing towards the limits as
determined by the input state (0 or 1). */
if (input == 0)
{
if (integrator > 0)
integrator--;
}
else if (integrator < MAXIMUM)
integrator++;
/* Step 2: Update the output state based on the integrator. Note that the
output will only change states if the integrator has reached a limit, either
0 or MAXIMUM. */
if (integrator == 0)
output = 0;
else if (integrator >= MAXIMUM)
{
output = 1;
integrator = MAXIMUM; /* defensive code if integrator got corrupted */
}
/********************************************************* End of debounce.c */
Ubi de Feo’s Debounce Code
Arduino sketch to debounce pins from an array.
#define ARRAY_SIZE 8
// array of pins to be debounced
short pinsToDebounce[]={
2,3,4,5,6,7,8,9
};
// array of pin state
int swStates[]={
0,0,0,0,0,0,0,0};
// array of previous pin state
int swPrevStates[]={
0,0,0,0,0,0,0,0};
// array to store the actual state during debounce
int swDebouncedStates[]={
0,0,0,0,0,0,0,0};
// array to store the previous state during debounce
int swPrevDebounceStates[]={0,0,0,0,0,0,0,0};
// time to debounce
int debounceDelay=100;
// array of previous times the pin has been checked
long prevTimes[]={
0,0,0,0,0,0,0,0};
void setup(){
Serial.begin(9600);
initSwitches();
}
void loop(){
readSwitches();
}
void initSwitches(){
for(int i=0;i<ARRAY_SIZE;i++){
pinMode(pinsToDebounce[i],INPUT);
}
}
void readSwitches(){
// Serial.print("active switch set ");
// Serial.println((int)activeSwitchSet);
for(short sw=0;sw<ARRAY_SIZE;sw++){
volatile int pin=pinsToDebounce[sw];
volatile int mpPin=pin;
volatile int pinPosition=sw;
swStates[pinPosition]=digitalRead(pin);
}
debouncePins();
checkStateChange();
}
void debouncePins(){
volatile long _millis=millis();
for(short sw=0;sw<ARRAY_SIZE;sw++){
if(swStates[sw]!=swPrevStates[sw]){
prevTimes[sw]=_millis;
}
if(_millis-prevTimes[sw]>debounceDelay){
prevTimes[sw]=_millis;
swDebouncedStates[sw]=swStates[sw];
/*
Serial.print("button ");
Serial.print(sw);
Serial.print(" is ");
Serial.println(swDebouncedStates[sw]);
*/
}
swPrevStates[sw]=swStates[sw];
}
}
void checkStateChange(){
for(short sw=0;sw<5;sw++){
if(swPrevDebounceStates[sw]!=swDebouncedStates[sw]){
/*
Serial.println("");
Serial.print("button ");
Serial.print(sw);
Serial.print(" ");
Serial.println(swDebouncedStates[sw]);
*/
if(swDebouncedStates[sw]==1){
pinActive(sw);
}
if(swDebouncedStates[sw]==0){
pinInactive(sw);
}
}
swPrevDebounceStates[sw]=swDebouncedStates[sw];
}
}
void printDebStates(){
Serial.println("%%%%%%%%%%%%%%%%%%%%%%%%");
for(int i=0;i<ARRAY_SIZE;i++){
Serial.print(swDebouncedStates[i]);
Serial.print('*');
}
Serial.println("");
}
void pinActive(int _id){
Serial.print("active pin ");
Serial.println(pinsToDebounce[_id]);
}
void pinInactive(int _id){
Serial.print("inactive pin ");
Serial.println(pinsToDebounce[_id]);
}
Christoph Gommel’s Debounce Code
Debouncing and scanning a keyboard matrix with an STM32 ARM processor.
/*
keyboard.c
Used on an STM32F103 in a wireless remote control
(C) 2010 Christoph Gommel <chg@contronix.de>
Contronix GmbH, Nizzastr. 6, 01445 Radebeul, Germany
Tags: matrix, keyboard, stm32, stm32f103, debounce, hackaday
*/
#include "stm32f10x.h"
#include "keyboard.h"
#include "fifo.h"
#define KEYBOARD_GPIO (GPIOA)
// Cols and rows are intentionally placed in the right order enabling the bit shifting trick used.
#define COL1 (GPIO_Pin_1)
#define COL2 (GPIO_Pin_2)
#define COL3 (GPIO_Pin_3)
#define COLS (COL1|COL2|COL3)
#define ROW1 (GPIO_Pin_4)
#define ROW2 (GPIO_Pin_5)
#define ROW3 (GPIO_Pin_6)
#define ROW4 (GPIO_Pin_7)
#define ROW5 (GPIO_Pin_8)
#define ROWS (ROW1|ROW2|ROW3|ROW4|ROW5)
//#define ROWS_B (ROW5)
#define ColNum (3)
#define RowNum (5)
#define ColStart (1)
#define RowStart (4)
//Very useful macro to increment and modulo in one instruction
#define incmod(n,m); n=((n+1)%m);
// Yes, we have a shift key too
#define SHIFT (GPIO_Pin_0)
GPIO_InitTypeDef GPIO_InitStructure;
#define KeyBufferSize (20)
//volatile unsigned char keypad_queue_buffer[KeyBufferSize];
static char keypad_queue_buffer[KeyBufferSize];
fifo_t keyfifo;
void keyboard_init(void)
{
//Initialize a self made fifo system
fifo_init(&keyfifo, keypad_queue_buffer, KeyBufferSize);
//Give clock to the GPIO
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
//Initialize the rows as push-pull-output
GPIO_InitStructure.GPIO_Pin = ROWS;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(KEYBOARD_GPIO, &GPIO_InitStructure);
//The cols ar input with pull-up
GPIO_InitStructure.GPIO_Pin = COLS | SHIFT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(KEYBOARD_GPIO, &GPIO_InitStructure);
GPIO_SetBits(KEYBOARD_GPIO, ROWS);
}
volatile unsigned int CurrentRow = 0;
volatile unsigned int lastScan = 0;
volatile unsigned int thisScan = 0;
volatile unsigned int debounceCnt;
volatile unsigned int numberOfKeys;
volatile unsigned int thisScancode;
volatile unsigned int lastScancode;
//Adapt this to you wishes
#define debounceMax (10)
//The following piece of code will be called every 10 ms from a systick interrupt
void keyboard_scan(void)
{
unsigned int scan;
scan = ((~GPIO_ReadInputData(KEYBOARD_GPIO)) & COLS) >> ColStart;
//this is the really interesting core of my matrix scanning algorithm.
//each key of the matrix is represented in one bit of a 16 bit unsigned short ;)
thisScan = (thisScan | (scan << (ColNum * RowNum))) >> ColNum;
//Release Current Row
GPIO_SetBits(KEYBOARD_GPIO, 1 << (CurrentRow + RowStart));
incmod(CurrentRow,RowNum);
//prepare next Row
GPIO_ResetBits(KEYBOARD_GPIO, 1 << (CurrentRow + RowStart));
if (0 == CurrentRow)
{
//Something changed, let's reset the debounce counter
if (thisScan != lastScan)
{
debounceCnt = 0;
}
//...or increase if nothing changed
else if (debounceCnt < debounceMax)
{
debounceCnt++;
}
//... if the threshold is reached
if (debounceCnt == debounceMax)
{
numberOfKeys = 0;
int i;
//count the number of keys pressed and mark the position of the set bit in "thisScancode"
for (i = 0; i < (ColNum * RowNum); i++)
if (thisScan & (1 << i))
{
numberOfKeys++;
thisScancode = i + 1;
}
//ignore multiple key presses...
if (1 != numberOfKeys)
thisScancode = 0;
else
{
//.. except the shift key which is NOT part of the matrix
if (keyboard_getshift())
thisScancode |= KEYBOARD_SHIFT;
if (thisScancode != lastScancode)
{
//printf("Scan: %d\r\n",thisScancode);
fifo_put(&keyfifo, thisScancode);
//this is typematic. to generate multiple keystrokes on one single looooooooooong press
#ifdef ENABLE_TYPEMATIC
typematicCnt=0;
#endif
}
#ifdef ENABLE_TYPEMATIC
else
{
typematicCnt++;
if ((typematicThreshold+typematicSpeed)<=typematicCnt)
typematicCnt=typematicThreshold;
if (typematicThreshold==typematicCnt)
{
fifo_put(&keyfifo, thisScancode);
}
}
#endif
}
lastScancode = thisScancode;
//Now we have to do the processing because we get some freshly debounced situation, baby!
//currentKey=((thisScan^oldScan)&thisScan);
//oldScan=thisScan;
}
lastScan = thisScan;
thisScan = 0;
}
}
//that's it, folks ;)
Dean Hall’s Debounce Code
Debouncing a pin interrupt on AVR microcontrollers
/*
* Sample debouncing code
*
* Copyright 2010 Dean Hall.
* This code snippet is offered under the MIT license:
* http://www.opensource.org/licenses/mit-license.html
*/
/*
* The hardware is an AVR with a switch connected to the INT0 input.
* The firmware uses:
*
* - AVR Libc: http://www.nongnu.org/avr-libc/
* - The AvrX microkernel: http://www.barello.net/avrx/
*
* This sample code performs debouncing on the INT0 input.
* Here is the expected sequence of actions:
*
* - The AVR can be doing anything (awake or asleep) when the button is pressed
* - The button press produces a low-going signal and bounces for a time
* - The low-going signal activates the INT0 interrupt
* - The INT0 service routine:
* - Disables the INT0 interrupt so bouncing doesn't cause multiple IRQs
* - Puts an AvrX message in the event queue of the inputs task
* - The event in the queue causes the inputs_task to be scheduled, which:
* - Performs the action that the INT0 button is supposed to invoke
* - Starts an AvrX delay timer to allow for the button to stop bouncing
* During this delay, other AvrX tasks may run.
* - After the delay, the INT0 interrupt is re-enabled for the next input.
*
* In this design, the delay is especially long (1s) due to a very cheap button
* and no need to respond to fast button presses.
*
* The downside of this software design is that no other input events are
* processed while a button is debounced, although their press-messages are
* queued up and handled after the debounce period. This behavior was
* acceptable for this immediate design, but may not be for all situations.
*/
#include <avr/interrupt.h>
#include "avrx.h"
#define DEBOUNCE_DELAY (uint16_t)(1000 / MILLISECONDS_PER_TIC)
static MessageControlBlock remote_ctrl_pressed_msg;
/* Remote Control button press interrupt service routine */
AVRX_SIGINT(INT0_vect)
{
IntProlog();
/* Disable INT0/RemoteCtrl interrupt */
GICR &= ~_BV(INT0);
AvrXIntSendMessage(&inputs_msg_queue, &remote_ctrl_pressed_msg);
Epilog();
}
AVRX_GCC_TASKDEF(inputs_task, TASK_STACK_SIZE, 3)
{
TimerControlBlock debounce_timer;
MessageControlBlock *pmsg;
/* Set INT0/RemoteCtrl and INT1/OpTest to trigger on falling edge */
GICR &= ~(_BV(INT0) | _BV(INT1));
MCUCR &= ~(_BV(ISC00) | _BV(ISC10));
MCUCR |= (_BV(ISC01) | _BV(ISC11));
GICR |= (_BV(INT0) | _BV(INT1));
/* ... other initialization stuff removed */
for (;;)
{
/* Wait for a message that an input was pressed or timer expired */
pmsg = AvrXWaitMessage(&inputs_msg_queue);
/* ... removed if-cases for other unrelated input messages */
else if (pmsg == &remote_ctrl_pressed_msg)
{
DEBUG_PRINT(VERBOSITY_LOW, "RmtCtrl pressed.\n");
/* ... removed code that performs the action the button invokes */
/* Debounce delay for RemoteCtrl button; lets other threads run */
AvrXDelay(&debounce_timer, DEBOUNCE_DELAY);
/* Clear flag and enable interrupt */
GIFR |= _BV(INTF0);
GICR |= _BV(INT0);
}
}
}
Brad Basler’s Debounce Code
Debounce synchronously or asynchronously using an ISR. Usage is discussed in
this thread
.
debounce.h:
#ifndef __DEBOUNCE_H__
#define __DEBOUNCE_H__
#include <avr/interrupt.h>
//Optimized for 20 millisecond period on a 1Mhz clock
#define DBNC_TIMR0_PRESCALER _BV(CS02)
#define DBNC_TIMR0_BASEVAL 178
//Defines the size of the debouncer handler arrays (i.e. 4 for a maximum of four)
#define DBNC_NUM_DEBOUNCERS 8
//Defines the number of timer ticks before a value is considered legitimate
//This will define a maximum debounce time of approx 100 milliseconds @ 5
//The minimum debounce time will be approx 80 milliseconds
#define DBNC_COUNTER_TOP 3
#define _BITSHIFTBY(bit,num) ((bit)<<(num))
typedef void(*debounceHandler)(uint8_t,uint8_t);
typedef struct
{
//A pointer to a volatile port (I/O or otherwise)
volatile uint8_t *port;
//A pointer to a debounceHandler function
debounceHandler handler;
//This is the decremental counter which determines
//if the button has been debounced
uint8_t counter;
/*
Bits 0-3: bit index to check against (0-7)
Bits 4-5: unused
Bit 5: Last known sate
Bit 6: Signaled
Bit 7: Asynchronous
*/
uint8_t bitmap;
} DBNC_ITEM;
typedef struct
{
//An array of debouncer units
DBNC_ITEM dbUnits[DBNC_NUM_DEBOUNCERS];
//This is set to 1 when any signal in the dbncSignaled array has been set
uint8_t signalReady;
} DBNC_GLOBAL;
/*
Forward Declarations
*/
//ISR for timer0 overflow interrupt
ISR(TIMER0_OVF_vect);
void callSignaledHandlers(void);
void registerDebouncer(volatile uint8_t *port,uint8_t bit,uint8_t index,uint8_t Asynchronous,debounceHandler handler);
void signalChangedState(uint8_t index,uint8_t counterTop);
void initializeDebouncerTimer();
#endif
debounce.c:
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "debounce.h"
volatile DBNC_GLOBAL db;
//ISR for timer0 overflow interrupt
ISR(TIMER0_OVF_vect)
{
uint8_t i;
uint8_t temp;
uint8_t workDone = 0;
//Cycle through all debounced items
for (i=0;i<DBNC_NUM_DEBOUNCERS;i++)
{
//Skip items that have been idle
if (db.dbUnits[i].counter == 0)
continue;
workDone = 1;
//If debounce period has elapsed
if (--db.dbUnits[i].counter == 0)
{
//Grab current logical bit state of the port (1 or 0)
temp = (((*(db.dbUnits[i].port)) & _BV((db.dbUnits[i].bitmap & 0b111))) != 0);
//If current state != last state
//store change
if (temp != ((db.dbUnits[i].bitmap & _BV(5)) >> 5))
{
//Flip last state bit
db.dbUnits[i].bitmap ^= _BV(5);
//If this debouncer item is synchronous
//Then signal it
if (!(db.dbUnits[i].bitmap & _BV(7))) {
//Signal this debouncer item
db.dbUnits[i].bitmap |= _BV(6);
//Signaling options
db.signalReady = 1;
}
//Otherwise it's asynchronous,
//call immediately
else
//Call Handler
(*db.dbUnits[i].handler)(i,temp);
}
}
}
//If all counters were already 0, disable the timer
if (!workDone)
TCCR0B = 0;
TCNT0 = DBNC_TIMR0_BASEVAL;
}
//Call any signaled handlers (to be executed in main program loop)
void callSignaledHandlers(void)
{
int i;
if (!db.signalReady) return;
for (i=0;i<DBNC_NUM_DEBOUNCERS;i++)
{
//Check if this item is signaled
if (db.dbUnits[i].bitmap & _BV(6)) {
//If so, reset its signal
db.dbUnits[i].bitmap &= ~_BV(6);
//Call item and pass on last known state
(*db.dbUnits[i].handler)(i,(db.dbUnits[i].bitmap & _BV(5))>>5);
}
}
//Reset signal
db.signalReady = 0;
}
void registerDebouncer(volatile uint8_t *port,uint8_t bit,uint8_t index,uint8_t Asynchronous,debounceHandler handler)
{
//Store port pointer
//Store handler pointer
//Reset counter to 0
//Store bitmap of bit offset/asynchronous state
//Set signaled to 0
db.dbUnits[index].port = port;
db.dbUnits[index].handler = handler;
db.dbUnits[index].counter = 0;
db.dbUnits[index].bitmap = _BITSHIFTBY((Asynchronous != 0),7)|
_BITSHIFTBY((((*port) & _BV(bit)) != 0),5)|
bit;
}
void signalChangedState(uint8_t index,uint8_t counterTop)
{
if (!counterTop)
db.dbUnits[index].counter = DBNC_COUNTER_TOP;
else
db.dbUnits[index].counter = counterTop;
if (!TCCR0B)
TCCR0B = DBNC_TIMR0_PRESCALER;
}
void initializeDebouncerTimer()
{
//Note: doesn't start timer
TCCR0A = 0x00;
TCCR0B = 0x00;
TCNT0 = DBNC_TIMR0_BASEVAL;
TIMSK0 = _BV(TOIE0);
}
test.c:
#include <avr/io.h>
#include <util/delay.h>
#include "debounce.h"
volatile uint8_t lastState;
void ButtonClicker(uint8_t index,uint8_t state);
/*
Pin-change interrupt 0
Detects pin changes on PCINT0-7 (all masked on), i.e. PB0-7 on Atmega2560
It compares these values to the last known state and signals a change
on any pins that have changed state.
*/
ISR(PCINT0_vect)
{
uint8_t temp = lastState^PINB;
lastState = PINB;
if ((temp & _BV(0)))
signalChangedState(0,2);
if ((temp & _BV(1)))
signalChangedState(1,3);
if ((temp & _BV(2)))
signalChangedState(2,4);
if ((temp & _BV(3)))
signalChangedState(3,5);
if ((temp & _BV(4)))
signalChangedState(4,20);
if ((temp & _BV(5)))
signalChangedState(5,50);
if ((temp & _BV(6)))
signalChangedState(6,200);
if ((temp & _BV(7)))
signalChangedState(7,200);
}
int main(void)
{
//Initialize PORTB as all inputs, no internal pull-ups
DDRB = 0x00;
PORTB = 0x00;
//Initialize PORTD as all outputs, all HIGH (LEDs off)
DDRD = 0xFF;
PORTD = 0xFF;
//Initial timer setup (does not start timer)
initializeDebouncerTimer();
lastState = PINB;
//Fills in details regarding
registerDebouncer(&PINB,PB0,0,1,&ButtonClicker);
registerDebouncer(&PINB,PB1,1,1,&ButtonClicker);
registerDebouncer(&PINB,PB2,2,1,&ButtonClicker);
registerDebouncer(&PINB,PB3,3,1,&ButtonClicker);
registerDebouncer(&PINB,PB4,4,0,&ButtonClicker);
registerDebouncer(&PINB,PB5,5,0,&ButtonClicker);
registerDebouncer(&PINB,PB6,6,0,&ButtonClicker);
registerDebouncer(&PINB,PB7,7,0,&ButtonClicker);
//Enable pin-change interrupt & mask
PCICR = _BV(PCIE0);
PCMSK0 = 0xFF;
//Enable interrupts
sei();
while(1)
{
//This will loop through any signaled debouncer items and
//call their handlers (doesn't apply to asynchronous)
callSignaledHandlers();
_delay_ms(5);
}
return 0;
}
void ButtonClicker(uint8_t index,uint8_t state)
{
if (state == 0)
{
PORTD ^= _BV(index);
}
}
William Dillon’s Debounce Code
Uses rising and falling edge detection in software to create a digital filter.
/* uint8_t doDebounce(uint8_t *state, volatile uint8_t *port, uint8_t pin)
*
* This function implements the logic for detecting button transitions for
* arbitrary ports and bits. The return value is the debounced value the the
* given pin.
*
* The implementation of this function is inspired by the digital filter
* presented in ECE573 at Oregon State University. It is different because
* I'm using the single 8-bit variable to store all of the state, rather than a
* 8 bit accumulator and 8 bit flag. We're using the range from 0x00 -> 0x7F
* and bit 7 (0x80) as the flag.
*
* The user of this function must provide a static state variable. This
* value encodes the state and history of the pin Failure to maintain the state
* would cause erratic behavior. The port can be any of the PINn
* memory-mapped input buffers. Pin must be between 0 and 7.
*
* Because these buttons pull to ground, we'll invert the meaning of the edges
* in software, 1 = yes is much more natural.
*/
uint8_t doDebounce(uint8_t *state, volatile uint8_t *port, uint8_t pin) {
uint8_t old = *state & 0x7F;
uint8_t flag = (*state & 0x80)? 1 : 0;
// Digital filter part, value = (old * .75) + (new * .25)
old -= (old >> 2); // 1 - (1/4) = .75
old += ((*port) & (1 << pin))? 0x1F : 0x00; // if bit set, add .25
// Software schmitt trigger
// Newly detected rising edge
if ( (flag == 1) && (old > 0x70) ) {
flag = 0;
}
// Newly detected falling edge
else if ( (flag == 0) && (old < 0x07) ){
flag = 1;
}
// Update the state variable
*state = (old & 0x7F) | ((flag & 0x01) << 7);
// Return only the pin state
return flag;
}
Mike Szczys’ Debounce Code
I fell in love with the Danni Debounce code early on. Here’s my retouched version of it.
/*--------------------------------------------------------------------------
10/13/2010: Button debounce code by Mike Szczys
based on "danni debounce" code by Peter Dannegger:
http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=189356#189356
This code detects and debounces button presses. It is tailored for use with
AVR microcontrollers but I've adapted it for other architectures easily and
successfully. It can be modified to use all eight bits on the same port
for up to eight buttons.
The interrupt service routine (ISR) at the bottom uses binary counter
variables (ct0 and ct1) to check the buttons once every 10ms until 40ms has
passed. If the button registeres the first and last times it reads it as
a keypress. There is no functionality in this code for detecting a held
button.
--------------------------------------------------------------------------*/
// F_CPU used by debounce to calculate 10ms interrupts
#define F_CPU 1200000
#include <avr/io.h>
#include <avr/interrupt.h>
//define pins used by buttons
#define KEY_DDR DDRB
#define KEY_PORT PORTB
#define KEY_PIN PINB
#define KEY0 1 //Button on PB1
#define KEY1 2 //Button on PB2
//Debounce variables
unsigned char debounce_cnt = 0;
volatile unsigned char key_press;
unsigned char key_state;
/*--------------------------------------------------------------------------
Prototypes
--------------------------------------------------------------------------*/
unsigned char get_key_press( unsigned char key_mask );
void init_timers(void);
void init_io(void);
/*--------------------------------------------------------------------------
FUNC: 10/13/10 - Used to read debounced button presses
PARAMS: A keymask corresponding to the pin for the button you with to poll
RETURNS: A keymask where any high bits represent a button press
--------------------------------------------------------------------------*/
unsigned char get_key_press( unsigned char key_mask )
{
cli(); // read and clear atomic !
key_mask &= key_press; // read key(s)
key_press ^= key_mask; // clear key(s)
sei(); // enable interrupts
return key_mask;
}
/*--------------------------------------------------------------------------
FUNC: 10/13/10 - Sets and starts a system timer
PARAMS: NONE
RETURNS: NONE
--------------------------------------------------------------------------*/
void init_timers(void)
{
cli(); // read and clear atomic !
//Timer0 for buttons
TCCR0B |= 1<<CS02 | 1<<CS00; //Divide by 1024
TIMSK0 |= 1<<TOIE0; //enable timer overflow interrupt
sei(); // enable interrupts
}
/*--------------------------------------------------------------------------
FUNC: 10/13/10 - Initialize input and output registers
PARAMS: NONE
RETURNS: NONE
--------------------------------------------------------------------------*/
void init_io(void)
{
//Setup Buttons
KEY_DDR &= ~((1<<KEY0) | (1<<KEY1)); //Set pins as input
KEY_PORT |= (1<<KEY0) | (1<<KEY1); //enable pull-up resistors
}
/*--------------------------------------------------------------------------
FUNC: 10/13/10 - Main
--------------------------------------------------------------------------*/
int main(void)
{
init_timers(); //start the timer
init_io(); //setup the buttons
for (;;) //loop forever
{
if( get_key_press( 1<<KEY0 ))
{
//KEY0 press detected. Do something here
}
if (get_key_press( 1<<KEY1 ))
{
//KEY1 press detected. Do something here
}
}
}
//--------------------------------------------------------------------------
ISR(TIM0_OVF_vect) // interrupt every 10ms
{
static unsigned char ct0, ct1;
unsigned char i;
//TCNT0 is where TIMER0 starts counting. This calculates a value based on
//the system clock speed that will cause the timer to reach an overflow
//after exactly 10ms
TCNT0 = (unsigned char)(signed short)-(((F_CPU / 1024) * .01) + 0.5); // preload for 10ms interrupts
i = key_state ^ ~KEY_PIN; // key changed ?
ct0 = ~( ct0 & i ); // reset or count ct0
ct1 = ct0 ^ (ct1 & i); // reset or count ct1
i &= ct0 & ct1; // count until roll over ?
key_state ^= i; // then toggle debounced state
key_press |= key_state & i; // 0->1: key press detect
}
Links to other code
Some folks just sent us links to code. Here they are:
[Pieter Conradie’s]
matrix scanning code
.
[Hernandi F. Krammes’]
debounce code for PIC
.
[Dave] uses [Jack Ganssle’s] debounce code; Listing 2 of
this page
.
[Photo credit:
Jack Ganssle
]
| 39
| 36
|
[
{
"comment_id": "210124",
"author": "guess",
"timestamp": "2010-11-09T20:47:40",
"content": "Putting a tens of lines of code into a RSS header – splendid!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210129",
"author": "Guy",
"timestamp": "2010-11-09T20:56:14",
"content": "I am a little disappointed that you haven’t “hacked” a solution to the up / down vote system on a wordpress article, or at least a static page.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210158",
"author": "uC",
"timestamp": "2010-11-09T21:54:30",
"content": "This is beautiful. Thanks for putting this all together in one spot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210159",
"author": "OJW",
"timestamp": "2010-11-09T21:55:11",
"content": "copy them into a stackoverflow question then anyone can up/down-vote them…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210161",
"author": "Terry",
"timestamp": "2010-11-09T21:56:00",
"content": "Err, wait a minute here. You asked for submissions to do a best-of and then didn’t tell anyone you don’t have a way to crowdsource the votes or make sense of all the submissions? Sounds like you may have wasted the time of people contributing.And you added a disclaimer that you’re not sure if these actually work? I’m a bit disappointed in this whole thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210164",
"author": "eric",
"timestamp": "2010-11-09T22:06:21",
"content": "I have to agree with Terry. If I wanted an aggregate of debounce code without any value added I would have googled it.Something (anything) extra might have made this post more worth it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210167",
"author": "Ned",
"timestamp": "2010-11-09T22:20:26",
"content": "Well i’m just happy my code is at the top (probably becasue it was submitted last)Keen to see what people have to say about my code though. Will read through a few other enrties tonight to get some more ideas to improve my code.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6780191",
"author": "Lê Hữu Bảo Thuận",
"timestamp": "2024-07-28T02:28:53",
"content": "good code",
"parent_id": "210167",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210183",
"author": "Tweeks",
"timestamp": "2010-11-09T23:30:14",
"content": "Why do in code what you should do in hardware. 1cap, 1 resistor. Cost.. ~1 cent.Tweeks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210186",
"author": "M4CGYV3R",
"timestamp": "2010-11-09T23:39:30",
"content": "Haters gonna hate.When it comes down to it, debounce is a pretty simple task. I don’t know that I need so many different code samples for this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210189",
"author": "jeff-o",
"timestamp": "2010-11-09T23:42:46",
"content": "@Tweeks: because it’s one less resistor, and one less capacitor to install.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210190",
"author": "Proflt",
"timestamp": "2010-11-09T23:43:28",
"content": "Because you may need to save space in your design.Nice to see all this code.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210191",
"author": "Michael Wheeler",
"timestamp": "2010-11-09T23:45:12",
"content": "Now someone just has to implement this into the Linux mouse driver./me shakes fist at cheap mouse.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210193",
"author": "Stephen Zuercher",
"timestamp": "2010-11-09T23:48:49",
"content": "I really love Kenneth Kuhn’s code. KiSS!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210204",
"author": "testing1",
"timestamp": "2010-11-10T00:15:19",
"content": "My vote go to Kenneth Kuhn (if it work…)kudo for explaining so well and not using timer…Thomas Flayols seem short at first sight but UGH! a mul? A DIV??? by far the most inefficient.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210217",
"author": "Andrew",
"timestamp": "2010-11-10T00:54:49",
"content": "@testing1 if you change the moving average window size to 8 or 16 you can get rid of the offending instructions and replace them with shifts (or, better yet, let your optimizing compiler do it for you).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210218",
"author": "Andrew",
"timestamp": "2010-11-10T00:57:35",
"content": "… not to mention, the branches in Kuhn’s code could stall the pipeline on a pipelined machine",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210220",
"author": "sneakypoo",
"timestamp": "2010-11-10T01:22:57",
"content": "@testing1: I’m not sure how you think his code is going to work without some kind of timer. There is nothing in the code that dictates how often the samples should be taken (except for a constant which isn’t used). So depending on how fast your MCU is running the debounce time will be either slower or faster.Unless I’m completely blind and stupid (which at 01:21 isn’t too unlikely).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210236",
"author": "Thomas Flayols",
"timestamp": "2010-11-10T02:05:15",
"content": "@sneakypooHi: You’re right, code should be put into a Timer, I did say it into a comment, hackaday’s guys must revoved it…Great website and thank’s to have post my code!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210249",
"author": "Drone",
"timestamp": "2010-11-10T02:59:10",
"content": "This is sooo sad to see. The fact that NO micro-controller manufacturer (AFAIK) has ever implemented selectable hardware debounce on at least some pins is inexcusable. A tiny drop of combinational logic on the die would debounce anything in hardware and save the developer a huge amount of time and money. That makes the micro-controller more valuable.But nope – instead, the Marketing Wonks at these micro manufacturers spend all their time figuring out how to milk money out of us for development tools.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210251",
"author": "paradox",
"timestamp": "2010-11-10T03:07:12",
"content": "“We also tried to weed out code that using delay loops for debounce”you only have to proof read one or two paragraphs per article try spell check and then read it out loud to see if it makes grammatical sense",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210269",
"author": "TJLusco",
"timestamp": "2010-11-10T03:48:11",
"content": "Wow! There is some super complicated debounce code there. I’m a bit iffy on the once implementing filters, and all sorts of wild counting algorithms.What happened to the good old:1. Hook the button up to a scope2. Get the mean time for the output to stabilize3. Create an input filter that which only accepts the input after it has changed for at least that amount of time.If you wanted to be really fancy, you could use statistics to find the time which guarantees to catch 99% of input, with 95% confidence. And even if that 1% got through, it would definitely get detected next cycle.For a microprocessors and digital systems assignment using AVR assembly, we came up with a solution that used a timer interrupt set at the denounce time (10ms, well overkill), 4 registers, and 10 lines of assembly. It took 20 ms best case to detect a button press, 30ms worst case, with the system being in sleep mode nearly the entire time.Needless to say, but simple is often best.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210324",
"author": "miked",
"timestamp": "2010-11-10T07:06:40",
"content": "Maybe the contest should have been “best way to up/down vote”. Stackoverflow was the first thing that came to my mind, but there may actually be a native WP option.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210357",
"author": "kubsztal",
"timestamp": "2010-11-10T10:32:18",
"content": "Most efficient debouncing of multiple inputs in the same time you can achieve only with vertical counters:http://www.dattalo.com/technical/software/pic/debounce.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210375",
"author": "umf",
"timestamp": "2010-11-10T12:08:31",
"content": "“Mike Szczys’ Debounce Code” should be titled “Peter Danneger’s Debounce Code”.The principle is also called vertical counter, because it uses only a couple of variables (4+ a few helpers) to simultaneously debounce a byte bits (that’s right, 8 switches) that have to be the same state a few times in a row in order to “trickle” through to the bitwise logic into the debounced output variable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210384",
"author": "Hernandi",
"timestamp": "2010-11-10T13:10:05",
"content": "Even my one is there! thanks hackaday! and is the light one concept!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210410",
"author": "SparkyGSX",
"timestamp": "2010-11-10T14:56:57",
"content": "@Drone: I don’t know a whole lot of different controllers, but I know at least TI has implemented configurable input qualification in DSPs and microcontrollers.For the C2000 controllers, you can select the sampling interval for each block of 8 inputs, and either 3 or 6 consecutive identical samples before the bit in input register changes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210429",
"author": "gripen40k",
"timestamp": "2010-11-10T15:57:41",
"content": "I really like Thomas Flayols’ submission, only because I’ve never thought of that before! Obviously the *10 /10 can be changed to 16 or 8 or something similar to make it far more efficient. Still, great idea :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210455",
"author": "IsotopeJ",
"timestamp": "2010-11-10T17:22:07",
"content": "It just occurred to me that there’s different scenarios for de-bouncing. I typically only need to know when a button has been pushed – then I increment a variable, enter a menu, whatever. I only need to debounce so it doesn’t appear that the button is pressed several times in succession. If the code is long, some times I don’t need anything. If it executes fast, I just throw in a delay.I never thought about a situation when you need to know how long a button has been pressed, or when it changes states. Still I can’t think of any time you’d see noise on an input pin unless the button just changed state…in which case you can just look for the change and ignore subsequent changes within the stabilization time. You’d only run into a problem when the stabilization time exceeds that of human reaction time…or the repeat rate if we’re talking about a mechanical device. But if that’s the case, you should probably use a better button.Am I missing something here? Is there some case where it isn’t so trivial?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210461",
"author": "not sure but...",
"timestamp": "2010-11-10T18:04:17",
"content": "I don’t think Thomas Flayols’ Debounce Code will work.The line button=(button * 9+INPUT * 10)/10; will not result in more than 1 since button is unsigned char the remainder will be dropped.suppose button = 1 and input = 1button = (1*9 + 1*10)/10 = 19/10 = 1.9 resulting in 1 in char math.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3240876",
"author": "erazor_de",
"timestamp": "2016-10-24T07:50:39",
"content": "Hope this helps someone:I think what Thomas Flayols wanted to achieve is an exponential filter, no moving average as stated. To circumvent the integer issue he multiplied the incoming values by a factor of 100, not seeing that after optimizing the equation this is not enough.So here would be a working exponential filter with a value range [0,100]:button = (button * 9 + INPUT * 100)/10;if (button > 50)Shifting the values instead of multiplication/division might be of no help in speed optimization becase this would lead to a 50% weight instead of the 10% which could still lead to a too rough signal.",
"parent_id": "210461",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210557",
"author": "DavidG",
"timestamp": "2010-11-10T22:31:03",
"content": "If the input generates and interrupt I set a mask bit which is cleared by a timer interrupt a bit later. The time int is used for system timing routines and clearing the mask only takes a line or two of code. Far simpler than any of the examples above. Been working in systems for the last ten years",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212132",
"author": "Matt",
"timestamp": "2010-11-14T00:03:13",
"content": "@DavidGSimplicity is not a requirement here. The simplest way is to throw a small delay loop in and lock the microprocessor while waiting for the bounce to finish. But those submissions were weeded out because HaD didn’t deem them to be a useful solution.Yet the sad reality is that we have a heck of a lot of projects on the net that do things like flashing a basic lightbulb and they throw an 8MHz processor at it. So what if the processor is monopolised? Just carefully set your interrupt priorities and nothing of value will be missed.If Joe average needs to use 100 bytes of program space on a microcontroller that spends the vast majority of it’s life simply either scanning inputs or doing nops while timers are running in the background they may as well be doing nops while waiting for bouncing to end. I’ve used this method in one of my more complicated projects where all my timers were being used for something else.I get it, you people think it’s bad programming practice. But here’s a site that a lot of very entry level people read. Not everyone wants to write a 100 line solution when a single line delay_ms(100); will do the job.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1349616",
"author": "serban b.",
"timestamp": "2014-04-14T22:20:05",
"content": "and thanks, I’m new in embedded systems and C programming, and delay_ms(100) really helped me, and after I’ll “finish” the code I’ll change it to something more elegant :)",
"parent_id": "212132",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "1001816",
"author": "hyperPostSuper (@hyperpostsuper)",
"timestamp": "2013-05-07T04:36:44",
"content": "Oof, sure are a lot of angry nerds here! W/EThanks Ubi de Feo! Your code really helped me out and is allowing me to move on to other (frankly, more fun) aspects of a system I’m working on.Much Appreciated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2562545",
"author": "Rajasekaran",
"timestamp": "2015-05-11T11:01:59",
"content": "Thanks a lot ….Since have been searching GOD debounce code from last Now I got it….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2691936",
"author": "Pieter Conradie",
"timestamp": "2015-08-27T07:40:25",
"content": "Hi Mike et. al.I know it’s old news, but I see that this page is still very popular, so I created a general purpose debouncing module in C that uses a binary state machine and a counter with configurable hysteresis to keep track of the debounced state of a digital input. It also registers and remembers a falling edge event (e.g. “key pressed”) and rising edge event (“key released”):http://piconomic.co.za/debouncing-a-digital-input-such-as-a-button/Here is a complete, stand-alone example that can be loaded and simulated in Atmel Studio:http://piconomic.co.za/download/debounce_example.zipEnjoy!Pieter",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2918154",
"author": "packocrayons",
"timestamp": "2016-02-13T17:15:36",
"content": "I agree that this is a little bit unnecessary, especially if you’re polling. Even if you’re using interrupts, set a bit somewhere until you’re done executing some bit of code.Basically – as soon as the first edge hits, ignore the button for a little while.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3217773",
"author": "gubi",
"timestamp": "2016-09-29T12:16:25",
"content": "I just found this thread. I’d like to add my comment to the hardware debouncing: Some people say:1) “It’s bad because it takes up space”: 0402 packaged cap and resistor together takes 1.5mm^2 space. Don’t tell me you don’t have that much free space next to each switch on a PCB.Even if you add a logic gate. SOT23 fits into 3x3mm2) “It takes time to put it on” Really? I admit it might take an extra second for the components and if you have X thousand units that adds up, but this is negligible when your product sits in a warehouse for weeks and shipping takes weeks as well.3) “Adds to BOM”. OK, it does, by how much? You must have at least 20+ components on a PCB anyway. If you’re smart, you can use decoupling caps for debouncing as well.4) “Adds cost”: 0201-0402 caps-resistors go for 0.002USD on Farnell, which is not even Shenzhen! If reeled you get 10000 for less than 20USD. If you go nifty and throw in some logic it adds another 0.01USD.Conclusion: I admit I’m a HW engineer but: I’m not saying debouncing must be solved with HW or SW. I think that depends on the context of the project but discarding one method just because it’s “uncool” is not a very educated approach regardless what your background is.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,339.726769
|
||
https://hackaday.com/2010/11/09/android-on-iphone-new-treats/
|
Android On IPhone: New Treats
|
James Munns
|
[
"Android Hacks",
"iphone hacks"
] |
[
"2g",
"3g",
"android",
"apple",
"froyo",
"idroid",
"iphone",
"openiboot"
] |
It seems that the iPhone 2g and 3g are the
newest phones
to get Android 2.2, codenamed Froyo. The process for installing Froyo if you have a
jailbroken
device seems to get even easier every time, with this revision being as simple as adding a repository, downloading Froyo, and pressing go. Follow the link for a wonderful step by step guide, complete with screenshots to take out all of the guess work. Android on iPhone sure has come a long way since
the first time
we covered it.
[via
reddit
]
| 44
| 43
|
[
{
"comment_id": "210081",
"author": "Mi6",
"timestamp": "2010-11-09T19:44:42",
"content": "Good news, but considering the price and ep!c ghayness related to the manufacturer one could just run down the street and get a brand new huge screen Dell Streak or HTC even?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210083",
"author": "Sitwon",
"timestamp": "2010-11-09T19:46:06",
"content": "I’m a little unclear on this…WHY would you buy an iPhone if you want to run Android? What is the motivation for doing this? What benefit do you get from running Android on an iPhone versus running Android any one of the many many phones that already come with Android?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210089",
"author": "Nick",
"timestamp": "2010-11-09T19:51:51",
"content": "I have an iphone 3g just collecting dust in my desk drawer. Do you really need to ask why someone would pick that over buying a new phone (and starting a new contract)?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210093",
"author": "Kevin",
"timestamp": "2010-11-09T19:54:56",
"content": "Did anybody else just get a notification about a “Test Post” hack? What’s going on?More info – From my inbox:——————————-Post : test postURL :http://hackaday.com/?p=30407Posted : November 9, 2010 at 11:33 amAuthor : christopernelsonCategories : newshiAdd a comment to this post:http://hackaday.com/?p=30407#respond——————————-I’m guessing that this message came from a breadboard somewhere….",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "210095",
"author": "Caleb Kraft",
"timestamp": "2010-11-09T19:58:25",
"content": "@Kevin,Testing the permissions of one of the new guys. Sorry.",
"parent_id": "210093",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "210094",
"author": "Maxzillian",
"timestamp": "2010-11-09T19:56:57",
"content": "Just a hunch guys, but maybe the appeal is to people who already have an iPhone and would like to use Android?I know I know, that’s too simple. The answer must be far more complicated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210098",
"author": "Luke",
"timestamp": "2010-11-09T20:10:29",
"content": "The point isn’t to buy an outdated iPhone and run Android. The point is to use an old iPhone that you already have with Android. If you don’t have an old iPhone then move on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210103",
"author": "sp00nix",
"timestamp": "2010-11-09T20:14:50",
"content": "Th point is, i got a 1st gen for free. Now i’m making it useful. Installing it as we speak. Sad tho, It’s 2.2 and my Aria is still 2.1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210109",
"author": "Andrew",
"timestamp": "2010-11-09T20:23:04",
"content": "How is the hardware support on this? Does it actually work well as a phone? If so, I’d be very tempted to try it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210111",
"author": "sp00nix",
"timestamp": "2010-11-09T20:23:15",
"content": "Damn, no touch input for some reason",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210114",
"author": "Anonymous",
"timestamp": "2010-11-09T20:26:47",
"content": "Two questions:1. Will this work on the iPod Touch? I’ve been looking for an Android PDA to replace my aging Dell Axim x30 because I don’t need (read: can’t afford the data plan for) a smartphone, and don’t want to pay $500 for an unlocked Android device.2. Will the iDevice be able to dual boot Android and iOS, or is the stock OS completely overwritten?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210117",
"author": "PeachPit",
"timestamp": "2010-11-09T20:31:29",
"content": "@Sitwon:Did you seriously just ask WHY someone hacked something?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210126",
"author": "Sitwon",
"timestamp": "2010-11-09T20:52:46",
"content": "I’m not asking why someone hacked something. I just don’t get the motivation behind buying an iPhone for the purpose of running Android when there are already plenty of good Android phones and devices on the market.It’s like buying a Tesla Roadster so you can put a gasoline engine in it.I’m not saying the an iPhone is a marvel of engineering like a Tesla is. I’m just saying it’s economically questionable to spend all that money just to turn it into something already (comparatively) cheaply and commonly available.Not to mention, Android was explicitly designed to be portable to a wide variety of hardware platforms. It would be a greater achievement to see someone running iOS on Android hardware since iOS _wasn’t_ intended for that kind of flexibility.Furthermore, a lot of “hackers” seem to prefer Android to iOS for ideological reasons, but by buying and using Apple hardware you are supporting the proponents of competing ideology. It’s like donating money to the political party you disagree with during an election year.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210130",
"author": "Daniel",
"timestamp": "2010-11-09T20:56:30",
"content": "1. iPod touch support is limited, IIRC only 1st gen is supported.2. Yes, you can dual boot iOS and iDroid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210135",
"author": "YaBa",
"timestamp": "2010-11-09T21:13:47",
"content": "@Sitwon1 – Buy? maybe people already have them and want another OS instead of the crappy iOS.2 – just for fun ?3- Developers? hello… develop for both OSes and try on the same machine instead of having 2 phones.4 – Games/apps, having the beloved apps/games without having 2 phones.5 … duh… so many reasons to make this…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210144",
"author": "Sitwon",
"timestamp": "2010-11-09T21:35:39",
"content": "@YaBa1- A potentially valid reason, but if you think iOS is crappy, why did you buy an iPhone. Or why did you keep it? You could have sold it for more than enough to buy an Android phone.2- That’s a cop-out that is overused by people who don’t want to justify their reasoning. It doesn’t answer the basic question. What makes it fun?3- That seems like a stretch. You’re testing on hardware that is dissimilar to anything your users would be likely to have. Why not just use the emulator in the ADK? It’s actually pretty good.4- That’s so full of compromises, it’s worse than Linux users who dual-boot to play Windows games. Talk about not being able to multi-task…5- Now you’re just padding to make your list longer. Apparently you lacked the creativity to come up with a fifth reason so instead you’re giving me a meta reason that just refers to the hypothetical existence of other reasons which you were unable to enumerated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210145",
"author": "YaBa",
"timestamp": "2010-11-09T21:41:51",
"content": "5th reason… myself… buying one because i really like the hardware design, but hate the iOS. So now I have a reason to buy it instead of buying some kind of HTC or something, they’re fckg ugly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210146",
"author": "????",
"timestamp": "2010-11-09T21:42:48",
"content": "quit arguing please. people hack because they can and they will. I for one like to see things on other things that aren’t mean to be there. Especially with such a closed os and tight hardware specifications making this project suck from the beginning. I want to see this project get a full port to my HD2!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210147",
"author": "Dreamcaster",
"timestamp": "2010-11-09T21:43:03",
"content": "@SitwonSettle down. Arguing on the internet gets you nowhere. You had a different view on what the post was getting at and someone questioned you on it. Arguing ruins credibility. Let is slide and relax. You disagreed with the post, so no need to post.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210149",
"author": "gottabethatguy",
"timestamp": "2010-11-09T21:43:16",
"content": "I hereby nominate sitwon for douche of the year.Three cheers for sitwon.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210154",
"author": "Sitwon",
"timestamp": "2010-11-09T21:50:22",
"content": "@YaBalol, the iPhone isn’t what I’d consider beautiful but I guess that’s a reason I can’t argue with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210155",
"author": "ChipKreep",
"timestamp": "2010-11-09T21:51:20",
"content": "@SitwonSorry, its already been made. You can hold your breath and stomp your feet as long as you want but there will still be android on iphone… and people will use it, even if its just to go “Hey look at my iphone running android.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210156",
"author": "Wouter",
"timestamp": "2010-11-09T21:51:27",
"content": "Cheers*3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210160",
"author": "YaBa",
"timestamp": "2010-11-09T21:55:15",
"content": "@????Well said!Buying IM-ME (girls toy) and make a spectrum analyzer out of it is just… awesome :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210162",
"author": "Gosh",
"timestamp": "2010-11-09T21:56:05",
"content": "@gottabethat guy: Seconded.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210166",
"author": "Simon Jester",
"timestamp": "2010-11-09T22:13:00",
"content": "Wow! It’s like a lobotomy for your iPhone!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210175",
"author": "Anonymous",
"timestamp": "2010-11-09T23:05:53",
"content": "A lobotomy? You aren’t seriously suggesting that Apple software is anything other than terrible, are you?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210185",
"author": "aEx155",
"timestamp": "2010-11-09T23:38:58",
"content": "I wonder when they’ll get support for newer ipod touch generations…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210199",
"author": "m1ndtr1p",
"timestamp": "2010-11-10T00:03:57",
"content": "@SitwonBecause they can… I don’t think you understand hackers’ mentality, they do it because they can, because it’s a challenge, because they enjoy fiddling with and /gasp HACKING hardware and software.Why does one need a reason to do what they do? Why do you sit here and comment on something you clearly don’t understand? This is a hacking website/blog, if you’re not a hacker, you’ll probably never get why we do what we do…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210205",
"author": "Gecko",
"timestamp": "2010-11-10T00:26:03",
"content": "Sweet =)works like a charm on my iPhone. But it is a bit too slow to really, really use it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210276",
"author": "Flood_of_SYNs",
"timestamp": "2010-11-10T04:10:50",
"content": "I have an iPhone 3G on a AT&T contract, and if Android works at least close to the usability of iOS then I would be very tempted to install it, it is hard to find a decent form-factor Android phone that works on AT&T’s 3G network.If AT&T had a nice Android based phone that I liked then I would have got that instead of my iPhone.BTW, I am running a jailbroken 4.1 iOS atm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210277",
"author": "therian",
"timestamp": "2010-11-10T04:11:11",
"content": "I dont want Apple people anywhere near Android, they will flood app Market with farts making apps and other rubbish",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210279",
"author": "Cindy Auligny",
"timestamp": "2010-11-10T04:11:57",
"content": "Yep, it’s a little bit slow. I also meet the problem with touch input.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210294",
"author": "therian",
"timestamp": "2010-11-10T04:35:51",
"content": "Dont forget that Apple people committed treason and betrayed open source community, show no mercy to them, the only way they can redeem themselves is by self sterilization",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210330",
"author": "Dids",
"timestamp": "2010-11-10T07:40:10",
"content": "What’s the news on the 3GS side though, saw no mentions of that anywhere?I guess that hardware’s changed so much that they need to whip up new drivers. *sigh*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210343",
"author": "iPhone Hacks",
"timestamp": "2010-11-10T09:25:35",
"content": "now that’s a real treat. i’m going to try that one when I get home..does it work on the 3GS???",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210352",
"author": "ferdi",
"timestamp": "2010-11-10T10:15:12",
"content": "when you buy apple produckts you sea pleas steal my mony all apple produts are overpriztyes the products look good bud the prise its not out off this worldi love this clip from the nieuwe series off the simpsons where bart tract a (M)apple storei think its troughe not the pee parthttp://www.snotr.com/video/1917",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210407",
"author": "Sitwon",
"timestamp": "2010-11-10T14:52:19",
"content": "@m1ndtr1pThere are some hacks that are clever and intriguing like the IM-ME stuff.There are other hacks where I can believe it was done for the challenge like the propeller and machine gun timing.There are a few hacks that basically amount to mental masturbation for geeks. (Hey look, we made a Turing machine out of ants!)And then every once in a while I see a “hack” like this that just doesn’t seem to have a point. It seems counter-intuitive to me that people would would *want* Android on an iPhone.It’s as counter-intuitive as buying an unlocked phone and then “hacking” it to only work with a particular network. Why would you want to do that? If you wanted a locked phone, why go to the extra trouble of getting an unlocked one to begin with?But sometimes appearances are deceiving. Sometimes developers/engineers have sound reasoning for making counter-intuitive decisions. When I asked the question I originally thought someone might enlighten me on some unique benefit of the iPhone hardware (other than aesthetics) that I hadn’t considered. But instead you were all hypersensitive and just assumed I was attacking the hacker community or hacker ethic or whatever.Also, something a lot of you seem to ignore is that people ALWAYS have a motivation for doing something. They might not say it, or even be conscious of it at the time, but there it’s there. When people say they did something “for fun”, it’s relevant to ask what was fun about it. “Because they can” is also a bullshit response. They “could” have done a lot of other things as well, but something made them choose to do this instead (and based on the time and energy involved it had to be a conscious choice). It is NOT unfair or irrelevant to explore the reasoning or motivation behind a project. Nothing happens in a vacuum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210417",
"author": "gottabethatguy",
"timestamp": "2010-11-10T15:22:32",
"content": "Hip hip hooray!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210453",
"author": "thedtm",
"timestamp": "2010-11-10T17:05:27",
"content": "You ask why? Such an easy question that no one has answered…I did this yesterday to an extra 3g I had, before the guide was posted. (I’ve known about the hack for some time) I just wanted to try out android. Also, there is a way to hack your PS3 with a iphone 2g/3g running iopenboot (the original hack to install android is the same, this install through cydia finaly made it super easy, to bad I can’t install the ps3 hack this way, much more complex). Later, I’ll dust off my ps3 and figure out how to install the ps3 hack and I’ll get supernes on my big screen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210548",
"author": "Mr. Fun",
"timestamp": "2010-11-10T21:59:15",
"content": "@SitwonSorry we aren’t all autists who have to logically justify fun. Beep beep boop boop why are you on a blog instead of doing something logically better such as working? Fun? What makes it fun? Beep boop",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "293990",
"author": "Dombeef",
"timestamp": "2011-01-01T02:13:05",
"content": "Hip hip horay!!This honestly is a great build. They must get some respect forJust doing it first.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "325063",
"author": "unknown",
"timestamp": "2011-02-06T07:32:44",
"content": "anybody know about similar like iphone. the hardware is iphone but the whole software not iphone..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "425657",
"author": "Clayton",
"timestamp": "2011-07-30T05:21:39",
"content": "Depending on what “apps” are availible, this sounds like a great way to referb an older iphone. Has anybody else tried this? I have been looking for something other than the walkthru to see if people have had any problems, suggestions, regrets etc.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,339.851082
|
||
https://hackaday.com/2010/11/09/avr-controlled-rgb-led-matrix-plays-tetris/
|
AVR Controlled RGB LED Matrix Plays Tetris
|
Mike Szczys
|
[
"LED Hacks",
"Microcontrollers"
] |
[
"ATmega168",
"led",
"matrix",
"rgb",
"tetris"
] |
[Stan] built this
LED matrix using a 16×16 grid
of RGB LEDs. He built the hardware and wrote some subroutines to randomize the colors. He’s not using PWM because frame buffering is not feasible for the 1k SRAM limit of the ATmega168 he used. Instead, shift registers drive the lights which can be mixed to achieve eight different colors (including off for black) reducing the framebuffer size to just 96 bytes. After he got done with the build he realized this is sized well for a game of Tetris. We’ve seen
AVR tetris
,
PIC Tetris
, and
Tetris using composite video
but it’s always a pleasure to see a new display build.
After the break we’ve embedded [Stan’s] demo video, several pictures, and a schematic. He’s using many of the same principles outlined in our
How to Design an LED matrix tutorial
.
[youtube=http://www.youtube.com/watch?v=ugub6d65b2A]
| 9
| 9
|
[
{
"comment_id": "210071",
"author": "Sprite_tm",
"timestamp": "2010-11-09T19:11:50",
"content": "Why would PWM not be feasible? I understand you don’t want to do 24bit color with it, but surely 8bit (3r 3g 2b) should be doable? It’d take 3/4 of the sram, but in the worst case you could put the game logic in a 2nd AVR.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210076",
"author": "aq",
"timestamp": "2010-11-09T19:25:46",
"content": "good, but would’ve been even better if board was painted black",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210086",
"author": "Bill",
"timestamp": "2010-11-09T19:49:04",
"content": "I imagine if he’s using shift registers for both axises, that’s another reason why you can’t do PWM. You just can’t shift out fast enough.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210140",
"author": "anon",
"timestamp": "2010-11-09T21:26:25",
"content": "Simply beautiful!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210150",
"author": "jpwack",
"timestamp": "2010-11-09T21:43:30",
"content": "@Bill that’s not the case, from the same 3 io pins (h-clock, v-clock and data) you could easily do the eight passes (per line) that a 3 bit/colour needs stalling the other clock or do eight “frames” per frame (as they do for monochrome flipper dot-matrix displays), since it’s small enought the math can be this: data-frequency = 16{lines}*16{cols}*3{colors}*8{shades per color}*25{fps} = 154kHznot so intensive for a 16MHz clock (3 ops of 1000)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210174",
"author": "Bill",
"timestamp": "2010-11-09T22:59:28",
"content": "You are thinking to much like a video signal.He’s running 14.7Mhz, refreshing the screen at 60 Hz, and he has three data lines, a h clock line, and a v clock line; 5 IO pins. Realistically, he’s maybe shifting out at max 1.8 Mhz assuming it takes at least 8 instruction cycles to set 3 IO pins according to a bitmap, and flip a clock pin. So now the fastest you can shift out a row is at 114 kHz. This doesn’t even count the cycles between rows and the other time needed to generate the bit map from the code.Not to mention, he’s already at a 1/16th duty cycle from the scanning already. Even if you manage to shift out to each row three times, you’re talking about obtainable duty cycle levels at 1/16th, 1/24th and 1/48th duty cycle. LEDs fall off brightness very rapidly after 1/16th as it is.I have a similar LED matrix ‘driver’ board that I am designing:http://www.billporter.info/arduquee-an-arduino-powered-marquee-design-log/I tried several ways to attempt PWM through x and y shift registers, none really worked. Either the duty cycle fell off too quickly, or the frequency would fall out of human POV range.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "223193",
"author": "Stan",
"timestamp": "2010-11-30T18:11:57",
"content": "Well originally I found really nice 12-bit per channel pwm drivers which I was using, that’d make it into 48-bit color image. It was displaying the image well, however 48-bit 16*16 image would take a bit more then a kilobyte, and the microporcessor I had has only 1024 bytes SRAM. So after that I decided to use shift-registers just because of simplicity.Once I get time, and some money for components, I do plan to turn this screen in 24-bit or maybe even the original 48-bit color screen :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "295196",
"author": "Mora Beute",
"timestamp": "2011-01-03T04:52:32",
"content": "1. Spawn systems is probably the worst I seen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "515480",
"author": "Lover",
"timestamp": "2011-11-22T05:17:03",
"content": "This is the coolest thing I’ve ever seen! Stan did a great job!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.115805
|
||
https://hackaday.com/2010/11/09/home-automation-without-pulling-wires/
|
Home Automation Without Pulling Wires
|
Mike Szczys
|
[
"home hacks"
] |
[
"arduino",
"ATmega88",
"home automation",
"openwrt",
"remote control",
"RF",
"router",
"switched outlet"
] |
Here’s a bit of simple home automation using hacks with which we’re become pretty familiar. [Mrx23] combined OpenWRT, a microcontroller, and a set of RF controlled outlet switches to
add automation to his plug-in devices
. An RF remote that controls the switched outlets has been connected to an Arduino. The router communicates with the Arduino via a serial connection. And the router is controlled by a web interface which means you can use a smartphone or other web device to control the outlets.
The best thing about this system is the power that the router wields. Since it has an underlying Linux kernel you have the option of setting CRON jobs to turn lighting on and off, and group settings can be established to set up a room’s lighting level for watching movies, hosting guests, etc. Combine this with the fact that OpenWRT can use port forwarding for Internet control and the possibilities really start to open up.
[Thanks Arpad]
| 14
| 14
|
[
{
"comment_id": "210030",
"author": "John",
"timestamp": "2010-11-09T18:15:35",
"content": "Nice hack but isn’t this a little round about way of setting up an x10 setup. I have 15 devices in my house and a modified wrt Linksys to connect to the usb x10 interface. The wrt already runs a webserver but with a modified version of thishttp://www.edcheung.com/automa/webx10.htm. I’m trying to setup a Cron to detect my iphone to call an “I’m home” job but it’s too flaky so far and this isn’t my main router so I have the wireless bridged. Then the whole setup is on a battery backup with my cable modem and router so I always have access to the lighting devices and the battery will last for 4 hours.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210034",
"author": "uzerzero",
"timestamp": "2010-11-09T18:23:49",
"content": "I wasn’t sure if he had dimmer control in those outlets or not, but a potentially useful feature would be the ability to dim the lights based on a setting. I.e., you could have a movie night setting with very dim, a party setting with dim around the TV/stereo and bright around the food, and an “all’s quiet” setting where the lights are full power.Still a neat way to set up home automation with Internet control.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210052",
"author": "davo1111",
"timestamp": "2010-11-09T18:34:05",
"content": "I’m no expert, but why not just get a linksys WRT54GL (?) at wire it straight to the remote? Sure, might need to use a relay to reduce voltages, but it would be much simpler",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210059",
"author": "Kris Lee",
"timestamp": "2010-11-09T18:56:33",
"content": "Hacks like this using unsecured wireless connection create another possibilities to hacking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210075",
"author": "Kalle",
"timestamp": "2010-11-09T19:16:18",
"content": "Hi,i’m using this multi-plughttp://www.gembird.de/produkte/produkt_details.php?phg=2&pug=1&id=765Connected it to a pc-engines Alix 1D (http://www.pcengines.ch/alix1d.htm) which is up 24/7 anyway, wrote a few lines of python code using the django framework and it works like a charm!There is also a multi-plug with LAN support. Looging forward to test that one.http://www.gembird.de/produkte/produkt_details.php?phg=2&pug=1&id=976",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210078",
"author": "Manmeet",
"timestamp": "2010-11-09T19:33:34",
"content": "Instead of cron jobs and a microcontroller, why not use a Firecracker andMister Houserunning on the router?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210082",
"author": "ed3203",
"timestamp": "2010-11-09T19:45:50",
"content": "this is exactly why i love this site :)i’ve always had intentions to do this to my own home at some point… when i actually own a house of my own that is :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210092",
"author": "thatoneguy7",
"timestamp": "2010-11-09T19:54:20",
"content": "@John: UPS on the modem and router so if the power goes out you can control your lights? The ones with no power?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210104",
"author": "Drake",
"timestamp": "2010-11-09T20:17:11",
"content": "@Kris LeeMy new hobby. Gathering all of the open source information on home automation so I can drive around neighborhoods messing with peoples lights.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210120",
"author": "John",
"timestamp": "2010-11-09T20:40:14",
"content": "@thatoneguy7: Some lights and the sprinkler system are on batteries as well (Sprinklers so it doesn’t lose the programming). I was hoping to move to a solar PV system in the future and was concerned about line conditioning but it’s nice to not need a flashlight! Plus for the 30 – 45 mins of power outages we receive per year I can stream content from my media server to a laptop as long as it’s got juice. A little over kill but plan for the worst and hope for the best!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210171",
"author": "Arpad",
"timestamp": "2010-11-09T22:33:22",
"content": "Hi all, come on guys, this project was built in 1 week for 55 bucks. No security was involved.The RF outlets (not the relayed version) can only handle relative dimming (pushing the on button: light insensitivity goes up, off-> down)Wiring the remote directly to the router would involve Linux programming :)If you have the desire to mess around with other people’s light, yeh go ahead :DThough you can protect your home network with WPA2.This entry level project was only a finger exercise, I have a much more complicated project in development namely U-P-B cloninghttp://tinyurl.com/2um7nxy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210212",
"author": "davijordan",
"timestamp": "2010-11-10T00:37:48",
"content": "I would just as well get some used thin clients you can put regular linux on for 10 or 15 bucks a piece that have parallel ports to do the same thing than go through all that hassle. We already do that with old legacy computers. It is not that hard to run cable if you plan it right.By the way, WPA2 has been cracked.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210956",
"author": "MB",
"timestamp": "2010-11-11T19:28:54",
"content": "We’re become used to had grammar",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "569937",
"author": "mrx23dot",
"timestamp": "2012-01-29T15:12:42",
"content": "Check out my latest project:http://mrx23dot.blogspot.com/2012/01/cloning-upb-home-automation-system.html",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.06846
|
||
https://hackaday.com/2010/11/09/machine-your-own-ring-light/
|
Machine Your Own Ring Light
|
James Munns
|
[
"digital cameras hacks",
"LED Hacks"
] |
[
"lathe",
"led",
"lexan",
"light",
"microscope",
"ring"
] |
[Alan] acquired a stereo microscope from eBay, and decided to save some more money by designing, machining, and assembling his own
arc reactor
ring light
to go along. After finding an LED driver board sitting around as well as ordering some surface mount LEDs, he set about using a lathe to cut away a block of lexan, making sure to include slots for the lights as well as the microscope mount point. Follow the link to see the detailed build photos, as well as some comparison shots with and without the ring light.
A month or two earlier though, and [Alan] would have had a fantastic start to an Iron Man costume.
| 18
| 18
|
[
{
"comment_id": "209966",
"author": "dkavanagh",
"timestamp": "2010-11-09T15:37:37",
"content": "Are you sure he isn’t building an ironman suit?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209967",
"author": "Colecago",
"timestamp": "2010-11-09T15:38:40",
"content": "People need to embrace other lighting options such as EL-Wire, CCL’s etc. LED’s no matter how well you diffuse them always have a spotty look to them because of their focus point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209979",
"author": "medix",
"timestamp": "2010-11-09T15:54:03",
"content": "Sweet, now build one to fit inside the (outer) annular shell of a dark-field microscope objective and we’ll have something..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209981",
"author": "Jeremy",
"timestamp": "2010-11-09T15:59:44",
"content": "@Colecago: Yeah but they look so cool!I am personally impressed with his abilities here. Good Job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209982",
"author": "golddigger",
"timestamp": "2010-11-09T16:00:24",
"content": "That’s cool for the throw-back suit, but the new one has a triangle, should be much easier to create.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209993",
"author": "Glen",
"timestamp": "2010-11-09T16:27:06",
"content": "Looks good. Nice machine job. But LEDs are very directional. they don’t spill much light out of the side. So most of the brightness will be directed straight down and I’m guessing the light should be directed inwards ? towards to subject under the microscope.If the LEDS were angled inwards or roughed up with sandpaper to diffuse the light the ring would appear brighter I’m sure. maybe it’s already bright enough though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210008",
"author": "Hackius",
"timestamp": "2010-11-09T16:54:17",
"content": "LEDs are directional because they have lenses on top. Just get LEDs without lenses or SMD LEDs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210024",
"author": "Bernhard",
"timestamp": "2010-11-09T17:25:08",
"content": "For people planning to create somthing similar, a ring-pcb is quite easy to create:http://bernhardkubicek.soup.io/post/72128023/LED-RING-PCB-for-the-CNC-Machinehttp://bernhardkubicek.soup.io/post/72128166/Finished-LED-ring-for-the-CNC-Machine",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210054",
"author": "Whatnot",
"timestamp": "2010-11-09T18:38:36",
"content": "@Colecago You have a point of course but LED are low power and don’t need inverters and remain relatively cool and are light and can stand vibration, plus spotty can be nice actually, and you can as Glen says diffuse the light with some sandpaper.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210113",
"author": "Brennan",
"timestamp": "2010-11-09T20:25:36",
"content": "Those of you who are complaining about the directional light property of LEDs need to realize that this project actually required directional light, so LEDs were a good choice in this situation. EL Wire? Seriously? That would create hardly any light, and certainly not something useful for the end of a scope.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210148",
"author": "Taylor Alexander",
"timestamp": "2010-11-09T21:43:12",
"content": "I really should have posted the Iron Man chest piece i made two years ago… I CNC machined it and everything. I’m just too damn lazy. :-/-Taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210256",
"author": "barry99705",
"timestamp": "2010-11-10T03:24:15",
"content": "I like this line the best.“Oh hey, before you start a project like this, you NEED precise accurate, complete CAD drawings. You should start by purchasing AutoCAD or Inventor or something like that. I went the cheap way and used paper and a pencil and about 5 minutes.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210270",
"author": "James Munns",
"timestamp": "2010-11-10T03:53:11",
"content": "@barry99705: True Hacker spirit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210271",
"author": "DieCastBlue",
"timestamp": "2010-11-10T03:54:19",
"content": "People have modified camping lights for similar effect.http://www.dealextreme.com/details.dx/sku.2516$6 to your door, although their shipping is all backed up (been three weeks since I ordered mine) because of Christmas etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210347",
"author": "Flying Finn",
"timestamp": "2010-11-10T09:43:19",
"content": "A fairly long time ago I stumbled upon this similar guide:http://metku.net/index.html?path=mods/ring-light/index_engThe end result is a much more powerfull and usefull ring light setup. I have built one for my 105mm Micro Nikkor with 3 individual LED rings and the end result is very good indeed. And just a little soldering required.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211044",
"author": "Brett_cgb",
"timestamp": "2010-11-11T22:08:50",
"content": "Better yet, how about a completed LED light rings that run off 12VDC?https://www.dealextreme.com/details.dx/sku.25511https://www.dealextreme.com/details.dx/sku.26001https://www.dealextreme.com/details.dx/sku.25513",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215152",
"author": "Diddle",
"timestamp": "2010-11-20T00:05:23",
"content": "@Brett_cgb > I’m with you — I’ve had the 120mm model bookmarked for several months! Just need to find the time to do some tinkering. :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215483",
"author": "Brett_cgb",
"timestamp": "2010-11-20T17:50:04",
"content": "Don’t expect rapid delivery from DealExtreme using “airmail”. Ordered 10/21/2010, shipped 10/23, left Hong Kong via airmail 11/15, not yet received in Arizona 11/20. Apparently, this is fairly common.Other shipping methods are available, and faster.I WANT MY LIGHTS!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.227617
|
||
https://hackaday.com/2010/11/08/swapping-speedometer-needle-for-leds/
|
Swapping Speedometer Needle For LEDs
|
Mike Szczys
|
[
"Transportation Hacks"
] |
[
"car",
"display",
"driver",
"led",
"lm3914",
"speedometer"
] |
[Ah2002] didn’t like the shaky needle in his car’s speedometer so
he replaced it with a ring of LEDs
. The old speedometer had a cable which rotated along with the gearbox for mechanical speed measurement. By connecting the stepper motor from a printer instead of this cable, a voltage is generated that fluctuates with the speed of the car. The fluctuation is linear so a given voltage measurement can be directly associated with one particular speed. By using a trimpot to calibrate the input voltage, [Ah2002] connected the signal to an LM3914 dot/bar display driver. These can be chained together, lighting a string of outputs based on the single voltage input. The result is the board seen above, which was covered with a printed paper graph in the final assembly.
Judging from the video after the break, we’d bet there was some distracted driving during the calibration process. The driver appears to be holding the video recorder, and since a cellphone GPS was used during calibration we wonder if [Ah2002] was adjusting the trimpot, looking at the GPS, and driving all at once. It’s a fairly awesome hack, but do be careful when you’re working on something like this.
[youtube=http://www.youtube.com/watch?v=wAUQjoejmOM]
| 44
| 43
|
[
{
"comment_id": "209602",
"author": "Darkrocker",
"timestamp": "2010-11-09T00:15:25",
"content": "Definitely like it, although I think I;’d go with red. Looks better (imo) and better for your night vision. When you want to give your car a more custom look doing a mod like this is a great alternative to replacing the whole assembly and usually losing your cars actual mileage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209607",
"author": "itanium",
"timestamp": "2010-11-09T00:27:20",
"content": "Just loved it. Certainly I’ll do one to composite my dashboard!Simple with just the bargrapher IC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209612",
"author": "Pix3l the B1t",
"timestamp": "2010-11-09T00:45:56",
"content": "Awesome, but he should’ve used different coloured LEDs, changing from red to green (or green to red) :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209618",
"author": "M4CGYV3R",
"timestamp": "2010-11-09T00:50:22",
"content": "Not to mention it looks like there’s snow on the ground, and he at least hit 60MPH while running a camera (100km/h or mph, couldn’t tell). It’s just reckless.Also, I’m pretty sure that at least in the US it’s quite illegal to mess with your speedometer aside from replacing it with something approved.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209619",
"author": "toto",
"timestamp": "2010-11-09T00:51:25",
"content": "some old Mazda 323turbo had somthing like ithttp://www.forum-auto.com/uploads/200504/mazda323turbo16s_1113328259_mazda323turbo16scompteur.jpgA friend that had one called it the plane cockpit. :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209621",
"author": "mattbed",
"timestamp": "2010-11-09T00:52:50",
"content": "Looks like he has done the rev counter aswell as the speedo. Guess it works in a similar fassion.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209622",
"author": "nimitzbrood",
"timestamp": "2010-11-09T00:53:25",
"content": "@DarkrockerUnfortunately it states that he replaced the cable mechanism with a stepper motor so he no longer has the cable running to the odometer.Still a neat hack though. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209625",
"author": "DanS",
"timestamp": "2010-11-09T00:59:02",
"content": "Love it! Need one for my car.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209667",
"author": "taintedkernel",
"timestamp": "2010-11-09T01:03:16",
"content": "Nice hack… I wonder if he was pulled over for excessive speed the excuse “But Sir I didn’t know I was speeding, my LM3914 was just out of calibration!” would work?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209668",
"author": "biozz",
"timestamp": "2010-11-09T01:03:26",
"content": "ill stick with my digital DGT spedometer XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209673",
"author": "Ryguy",
"timestamp": "2010-11-09T01:09:01",
"content": "Not sure if this legal, but sweet hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209675",
"author": "vonskippy",
"timestamp": "2010-11-09T01:22:25",
"content": "Looks like it could make the Kessel Run in less than twelve parsecs.No clue what the actual rate was, but it wasn’t 100kph or mph according to the snail-esque moving road stripe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209677",
"author": "loki233",
"timestamp": "2010-11-09T01:31:45",
"content": "looks sweet, i’d like to try it myself. i’d probably try surface-mounted LEDs though, for a more precise scale",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209680",
"author": "itwork4me",
"timestamp": "2010-11-09T01:44:13",
"content": "great until you have to service the bulbs. I had to service my dash bulbs at 6 years having them constantly on with the headlights. So based on that, he’s gonna be changing the low mph’ers more often than the high ones…so, I would add a small pulse or something not noticeable to the eye, to clip the power on the lower MPHs that are almost always going to light up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209699",
"author": "jonored",
"timestamp": "2010-11-09T02:01:25",
"content": "@itwork4me – small LEDs have running times on the order of a decade of time /on/. If he’s got them running properly, then even if he’s driving at 20mph that’s a million-mile fixup issue…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209700",
"author": "SuperSparky",
"timestamp": "2010-11-09T02:07:10",
"content": "Well, this is a hack that cannot be done in the USA, as tampering with the speedometer is a federal offense (if you intend to sell the car).The stepper motor will not last. I give it a year before its bearings seize.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209705",
"author": "Joe",
"timestamp": "2010-11-09T02:19:54",
"content": "Optical or Hall effect encoding for the speedometer cable would be a better idea. Ideally Hall effect. This is how wheel speed sensors work since they are unaffected by dirt and grime and are essentially friction free.I hope that stepper does not catch fire on a long trip, but from the sound in the video, his car seems to be making a lot of noises as it is already.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209770",
"author": "shad0w",
"timestamp": "2010-11-09T04:34:38",
"content": "Optical encoding of the speedometer cable would be unstable, or very difficult to hold rock solid. Hall effect could not work with the cable, so the cable would need to be removed and the sensor mounted in the transmission or the wheel, also it wouldn’t generate a voltage to power the leds. How about a dc or stepper motor attached to the cable inside the speedo so replacement is easy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209821",
"author": "MS3FGX",
"timestamp": "2010-11-09T06:00:04",
"content": "The engine will fall out of the car long before one of the LEDs in that display dies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209826",
"author": "Digital",
"timestamp": "2010-11-09T06:38:47",
"content": "why not put a small piece of metal on the cable needle and have it complete a circuit to turn on the led’s instead? I must have over simplified this, because for some reason no one has mentioned it as an idea…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209830",
"author": "Malikaii",
"timestamp": "2010-11-09T06:50:25",
"content": "Joe, more information please.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209839",
"author": "cde",
"timestamp": "2010-11-09T07:10:11",
"content": "@Sparky, Intent to deceive is needed for that. And most likely, you are think of odometer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209865",
"author": "Tachikoma",
"timestamp": "2010-11-09T08:10:25",
"content": "Anyone seen Cyber City OEDO 808? This totally reminds me of the car from the series, but with less eye candy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209880",
"author": "Perth Antenna",
"timestamp": "2010-11-09T08:50:16",
"content": "I encourage everybody to support artists who create bicycle art and all forms of art made from salvaging the things people throw away.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209886",
"author": "turn.self.off",
"timestamp": "2010-11-09T09:14:41",
"content": "I kinda recall a LED dash in the 80s 90s that was a digital kmh/mph readout with a series of boxes for rpm. the rpm boxes would start in the bottom left corner and then grow upwards in a angle until it hit the top edge and then continue rightwards.I think a whole lot of car companies experimented with digital readouts, but went back to dials for some reason.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209908",
"author": "strider_mt2k",
"timestamp": "2010-11-09T10:45:39",
"content": "“Great until you have to service the bulbs…”Hello time traveler! Welcome to 2010, where we have these awesome little things called LIGHT EMITTING DIODES!!While visiting this temporal region, please feel free to read up on the delights of these tiny, solid state wonders so that you might bring news of them back where/whence you came!Oh, and try the fish…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209921",
"author": "davo1111",
"timestamp": "2010-11-09T11:47:46",
"content": "It looks cool, i wonder what its like during the day. Very clever",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209924",
"author": "matt",
"timestamp": "2010-11-09T11:52:38",
"content": "You can estimate your mileage for a sale if you have a non-functioning odometer. i have a 70s jeep that hasn’t had a working speedometer or odometer since long before i have owned it. it becomes illegal if you have intent to deceive.yes its legal to change out your speedometer. i doubt this mod would be legal in most US states…but there may be a way to have it calibrated and checked to make it legal. but to me it looks like he still has the bouncing needle issue (higher numbers are flashing)and just fyi…most bouncing needle issues involving a cable driven speedometer can be fixed with some lube, 90% of the time that’s the issue.also there are hall sensors available for mods like this for as little as $30.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209926",
"author": "Itwork4me",
"timestamp": "2010-11-09T12:05:51",
"content": "Ever see an LED on a keychain burn out? I replaced the LED twice from a cheap keychain. Those LEDs are probably manufactured in china or pacoima…so really let me know when the first burns out. I give you 160000 miles or six years…keep me posted. Regardless, cool until yer pulled over.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209935",
"author": "Peter",
"timestamp": "2010-11-09T13:04:46",
"content": "Service the bulbs after 6 years of having the headlights on? Must be an American car…my Toyota Camry is past 7 years…I also drive with my headlights on (pre-DRL vehicle) and the dashboard lights are fine.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "209955",
"author": "Itwork4me",
"timestamp": "2010-11-09T14:57:05",
"content": "I give you two months, you just cursed yourself. Btw I have a Toyota Tacoma.",
"parent_id": "209935",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "209937",
"author": "Andrew",
"timestamp": "2010-11-09T13:45:19",
"content": "plays “iron man theme song”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209943",
"author": "Martin",
"timestamp": "2010-11-09T14:30:14",
"content": "Looks great! With rgb leds he could could display more than just the current speed: average speed, or coupled with a modern satnav even the speed-limit or rather the exceedance of it in red. Would require more logic of course and would need some robust design with the drivers psychology in mind.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209947",
"author": "Rapps",
"timestamp": "2010-11-09T14:40:49",
"content": "Looks really cool, but i would try to reproduce thesehttp://www.doubleyoudigital.nl/imgsold/digidash_corvette.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209968",
"author": "lwatcdr",
"timestamp": "2010-11-09T15:40:47",
"content": "@shad0wWhy do you think an optical encoder would be unstable?You just count the time between pluses. No different from a hall effect or even a mechanical switch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209969",
"author": "dude42",
"timestamp": "2010-11-09T15:40:54",
"content": "Itwork4me, dude, your crappy keychain burns out cause its a crappy key chain with a led connected direct to the battery and letting the current ride as hard as it canusing a simple concept called current limiting, while using it you can get insane amounts of time out of led’s, for example my alarm clock, which has been on 24/7 since 1989do us a favor and go lean some (very) basics before running your flap",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209980",
"author": "Drake",
"timestamp": "2010-11-09T15:54:59",
"content": "The legality of it is kind of a grey area.The speedometer part is not illegal to modify, (You actually don’t need a speedometer to be legal) but messing with the odometer is the illegal part.You really begin to question things in 4×4 ing.I have a jeep that was lifted by the PO and larger tires were put on. The speedometer gear was never changes so the speedometer and odometer are actually 17.9% slow!On top of all that when speedo-s get old they tend to either bounce (like what the author said) or stop working all together.If you check out your title there is a box on there that says odometer reading exceeded limits or odometer reading inaccurate. Check this and your good to go.Only issue with not having an odometer is your guessing when to change your oil!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209989",
"author": "0x4368726973",
"timestamp": "2010-11-09T16:11:57",
"content": "@lwatcdrYes, the support circuitry would be very similar, however the issue with the optical encoder becoming unstable would be from dirt/grease interfering with the optics, and slop in the movement of the cable. Hall effect would still be vulnerable to the slop in the cable, but wouldn’t have the grease issue. As previously mentioned, it would still be better to relocate the sensor directly to the transmission or driveshaft, as this would reduce the slop issue.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210010",
"author": "Truthhertz",
"timestamp": "2010-11-09T16:58:13",
"content": "Here’s another idea:Why use the stepper as a tach/generator to do an analog speed to V translation?The stepper should produce a sinusoid when it’s turning. You could count those pulses the same way you could count the pulses from an optical sensor or a hall effect device.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210016",
"author": "Drake",
"timestamp": "2010-11-09T17:13:08",
"content": "I think the hall effect would be the best bet. The shaft is already steel and would be virtually infoulable. I would also then integrate speed to give an odometer reading specifically for purposes of maintenance and keeping track of fuel mileage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210137",
"author": "anon",
"timestamp": "2010-11-09T21:17:45",
"content": "@M4CGYV3R aka buzzkillington.stuff I put to you:A) It’s private land.B) In the UK it’s illegalC) WHAT.commence rage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210170",
"author": "Chris.G",
"timestamp": "2010-11-09T22:25:07",
"content": "I know in Indiana, after the car is so old it’s fine to mess with this kind of stuff, as long as you’re honest and up front about it.Beyond that, good luck.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210213",
"author": "strider_mt2k",
"timestamp": "2010-11-10T00:45:38",
"content": "lol @ buzz killingtonNow let me tell you all a rousing story about a bridge…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210363",
"author": "IVIyth",
"timestamp": "2010-11-10T11:11:23",
"content": "Just do a swap for the cluster from a Honda S2000.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.345457
|
||
https://hackaday.com/2010/11/08/build-a-confetti-cannon-for-your-next-party/
|
Build A Confetti Cannon For Your Next Party
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"cannon",
"confetti",
"fire extinguisher",
"pneumatic",
"solenoid",
"valve"
] |
[Scott]
built a confetti canon
to spice up the party. It’s pneumatic and re-purposes a fire extinguisher as the air tank. He had a refillable extinguisher that used water instead of chemical retardant. After emptying the water and ensuring all of the pressure had been release he swapped the hose and nozzle for a sprinkler solenoid valve. Securing the extinguisher’s actuator lever with a pipe clamp holds the internal valve open, leaving the solenoid to control the pressure release. This way the canon can be fired electronically, or manually.
This type of solenoid valve is
a popular choice with pneumatic canons
. We suppose you could even adapt this for use as a
T-shirt cannon
.
[Thanks BoBeR182]
| 11
| 11
|
[
{
"comment_id": "209595",
"author": "Peter",
"timestamp": "2010-11-08T23:38:25",
"content": "I wouldnt have thought this kind of solenoid valve would be the best pick given the reaction time delay between trigger and the valve fully opening. This valve works by triggering on a pressure differencial between two sides of a diaphram. The opening time is not that quick I dont think. I could be wrong. A butterfly valve would be my pick.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209601",
"author": "darus67",
"timestamp": "2010-11-09T00:10:10",
"content": "I’ve built a few air cannons using sprinkler valves. The diaphragm valves sometimes oscillate like a reed in a horn, when triggered. Sounds like a trumpet blast when you fire it. There are sprinkler valves that use a solid piston, rather than a diaphragm. They work a lot better.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209614",
"author": "strider_mt2k",
"timestamp": "2010-11-09T00:48:57",
"content": "Oh this is SO backing up into the mains…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209674",
"author": "vonskippy",
"timestamp": "2010-11-09T01:15:21",
"content": "Now if only the guy would invent some way of taking a sequence of photos in rapid succession such that when played back they would give the illusion of real life movement.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209679",
"author": "clide",
"timestamp": "2010-11-09T01:40:00",
"content": "With the electric triggering it can cause honking like darus67 mentioned and impede performance. The initial burst of air is quite good and it probably still works better than a butterfly valve would.These valves can be modified to be triggered by a second smaller valve like the blowguns that are used with an air compressor. This eliminates the need for batteries and gives better performance to the valve. They can open in less than 10ms if properly modified.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209701",
"author": "userjjb",
"timestamp": "2010-11-09T02:08:10",
"content": "@clideI’m assuming you are the same clide from the Spudtech forums etc? Glad to see another spudgun builder here. I tend to cringe at most pneumatic designs posted on this site. Crappy valves and unrated DWV fittings abound.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209812",
"author": "Leithoa",
"timestamp": "2010-11-09T05:26:56",
"content": "You would also get better performance by placing the valve at the base of the actual barrel rather than on the air tank, that way you’re not trying to compress all that air in the hose before you launch your confetti.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209841",
"author": "cde",
"timestamp": "2010-11-09T07:12:02",
"content": "I agree with everyone else. You would getter performance if you replaced the confetti with sawdust and an open flame. >:]",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210022",
"author": "rusty",
"timestamp": "2010-11-09T17:22:44",
"content": "powdered coffe creamer works nicely too, make sure you have an ignition source at the opening of the cannon!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210023",
"author": "rusty",
"timestamp": "2010-11-09T17:23:12",
"content": "*coffee",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "616829",
"author": "drnjr31",
"timestamp": "2012-03-31T09:34:10",
"content": "These valves look promisinghttp://www.krain.com/electric-valves/proseries-100-electric-valves.html#ScrollToAddToCarthttp://www.amazon.com/K-Rain-7001-Electric-Sprinkler-Valve/dp/B001RHIE76/ref=sr_1_11?s=lawn-garden&ie=UTF8&qid=1333186147&sr=1-11",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.804044
|
||
https://hackaday.com/2010/11/08/czech-discovery-ressurects-ps2-keyboard/
|
Czech Discovery Ressurects PS/2 Keyboard
|
Joseph Thibodeau
|
[
"Microcontrollers",
"Peripherals Hacks"
] |
[
"contest",
"discovery",
"keyboard",
"ps2",
"stm32"
] |
Like us, you probably have piles of old PS/2 keyboards occupying strategic positions in your house and causing all sorts of trouble with the neighbours. As luck would have it, there is a way to put those lazy peripherals to work!
Our friends in the Czech Republic have successfully interfaced a
PS/2 keyboard to an STM32 Discovery board
(
translated
), and not a moment too soon—just in time for you to integrate their work into your entries for those juicy contests we told you about (the
European one
and the
North American one
).
The project page contains an in-depth walkthrough of how the PS/2 connection talks to the keyboard hardware along with source code and links, more than enough information to get started with a PS/2 keyboard hack on your Discovery application. And why stop at keyboards? Give your old PS/2 mouse a new lease on life, or even hook up your
custom game controller
to spice up the experience.
| 17
| 17
|
[
{
"comment_id": "209570",
"author": "Merried Seinor Comic",
"timestamp": "2010-11-08T22:39:10",
"content": "Fiends? It’s not like they can help they’re from the Czech Republic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209573",
"author": "guest",
"timestamp": "2010-11-08T22:42:22",
"content": "I made some experiments with PS/2 and the gameport a while ago:http://electric-handicraft.blogspot.com/2010/04/gameport-to-ps2-converter.htmlhttp://electric-handicraft.blogspot.com/2010/07/gameport-to-ps2-converter-build.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209588",
"author": "Andrew",
"timestamp": "2010-11-08T23:09:16",
"content": "I want a old ps/2 keyboard :S they rock ^.^Lulz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209589",
"author": "villadelfia",
"timestamp": "2010-11-08T23:13:48",
"content": "What do you mean, resurrect? I’m still adamant on getting PS/2 keyboards and mouses. Plugging them into usb ports is a waste of ports, since most motherboards still have 2 connectors dedicated to mouse and keyboard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209603",
"author": "Urza",
"timestamp": "2010-11-09T00:18:29",
"content": "I thought PS/2 and USB keyboards had identical outputs…which is why you can get a cheap adapter to change one to the other – all you have to do is change where the pins go, you don’t have to have a chip to translate it or anything. So wouldn’t this work just as well with a USB keyboard?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209606",
"author": "Tiago",
"timestamp": "2010-11-09T00:24:24",
"content": "Those adapters only work in keyboards that have electronics inside then that can speak PS/2 AND USB.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209615",
"author": "Anonymouse",
"timestamp": "2010-11-09T00:48:58",
"content": "My primary keyboard is a 1987 generic buckling spring behemoth with an old school DIN-5 connector. I connect it to USB with a chain of adapters. It has a macro key in place of the windows key, and an extra home key in the middle of the arrows.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209707",
"author": "jeditalian",
"timestamp": "2010-11-09T02:26:11",
"content": "find a use for those old AT keyboards. anything they can natively interface with is a piece of shit. PS/2 keyboards, on the other hand, come in very handy when you burn out your onboard usb ports and are not a fucking genius that can inspect and repair microcircuits. you can’t get into the BIOS with a usb expansioncard. actually, i faintly remember there being a program that allowed me to do just that, by loading the drivers before windows, back in the days of FAIL that was windows millenium, and would not be repeated until the introduction of vista. except for that pre-SP1 security hole that XP came with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209771",
"author": "glagnar",
"timestamp": "2010-11-09T04:42:00",
"content": "@jeditalian: what in the hell are you talking about?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209842",
"author": "BrmLab",
"timestamp": "2010-11-09T07:14:46",
"content": "Czechia FTW!If you’re going to visit Prague don’t forget to meet us in our Hackerspacehttp://brmlab.cz/;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209888",
"author": "h_2_o",
"timestamp": "2010-11-09T09:43:24",
"content": "forget usb kb you will have to pry the model m from my cold dead hands. Best KB ever made hands down.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209936",
"author": "blue carbuncle",
"timestamp": "2010-11-09T13:21:53",
"content": "I’m in the boat with the USB/ps2 converter dongle thingy crowd. Never had a problem. Most of my machines are still old enough that they still have ps2 ports on them. Sad, but I don’t edit video so I don’t need super horsepower lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210011",
"author": "me",
"timestamp": "2010-11-09T17:03:20",
"content": "Last year i bought a new motherboard equipped with ps/2 connectors and serial+parallel ports. You have to look closely to find such a board. xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210096",
"author": "Mr Hacker",
"timestamp": "2010-11-09T20:07:10",
"content": "try reading the google translation",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210163",
"author": "t&p",
"timestamp": "2010-11-09T21:56:11",
"content": "ps/2 > * for mouse & keyboard. Why switch to USB? I hate it when people say ps/2 is dead.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210342",
"author": "Eric",
"timestamp": "2010-11-10T09:18:51",
"content": "Screw ps/2, I’m fine with DIN. My last primary desktop used din, now my new pc only has one PS/2 port which is unutilized. I have a sidewinder x6 keyboard and a sidewinder X8 mouse hooked to my main, I did recently find a junky PIII dell in a dumpster that I physically restored and uped the dimms to a max of 512mbs. I’m giving it my ps/2 keyboard and am installing freedos on it. I also brightened it. I might use alittle retro-brite on the keyboard and computer components and add some led fans and such, it’d probbably sell for less than sixty bucks. Damn pc had the monitor, too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210344",
"author": "Eric",
"timestamp": "2010-11-10T09:27:03",
"content": "oh and btw; that whole “screw ps2 remark was a joke” although I don’t ever find myself using a ps/2 mouse soon. When I use a mouse with any interface older than usb, it’s usually my logitech serial mouse that I put a sticker of tux on. I’m putting that on my new junkbox too. Lol, I polished the metal and completely toredown that dell and gave it a thourough cleaning, I also worked mcquires high gloss protectant into all the plastic components. (even within the psu)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.700026
|
||
https://hackaday.com/2010/11/07/water-use-feedback-changes-behavior/
|
Water Use Feedback Changes Behavior
|
Mike Szczys
|
[
"green hacks",
"home hacks"
] |
[
"arduino",
"koolance",
"meter",
"usage",
"water",
"wifi"
] |
How much water do you use when showering, or washing your hands, or washing the dishes? Not how much does the average person use, but how much to
you
use? That’s what the team over at Teague Labs set out to find with this
water usage feedback system
. The sensor used is a Koolance flow meter which is intended to measure coolant flow in PC liquid cooling systems. At $20, it makes a nice low-cost sensor which was paired with a WiFi enabled Arduino. In the image above they’re using an iPad as a screen so that you can see how much water you’re using (or wasting) as you wash your hands. This resulted in saving 1/2 gallon of water every time someone washed their hands.
The project code, schematic, and board files are all available for download. Along with the hardware build there’s some nice server-side software that gathers and graphs the data over time. We’ve seen a lot of
power-meter hacks
, but it’s nice to have the option to track water usage, even if this is tailored to just one tap at a time.
| 26
| 26
|
[
{
"comment_id": "209094",
"author": "theodore",
"timestamp": "2010-11-07T20:20:13",
"content": "why can’t you plumb it to the main line coming off the pump? Then you would have the total water usage for the house. it would take me less than 20 min’s to install. not very hard to do at all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209100",
"author": "Karl",
"timestamp": "2010-11-07T20:35:55",
"content": "theodore – not everyone is comfortable doing that level of plumbing, and I wouldn’t want to have a piece of plastic in my main line – [if it breaks while you’re away, what will your insurance company say? Besides, nowadays most people have a water meter already – this is for local, not global feedback.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209101",
"author": "Maave",
"timestamp": "2010-11-07T20:38:40",
"content": "Put this on the shower rather than a faucet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209102",
"author": "zool",
"timestamp": "2010-11-07T20:40:11",
"content": "@theodore if you watch the vid on their page it shows that people used less water when there was a realtime feedback of how much water they were using when washing their handsthey go on to say how much water it can save and how you can give someone a lifetime of water for $20, i’m not sure how they’re doing the math for that but the end result is that people just use less water when it’s being monitored",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209106",
"author": "anybody",
"timestamp": "2010-11-07T20:47:42",
"content": "I wonder how much productivity would be lost to additional sick days if everyone was so “green”?With hospital administrators looking for low hanging fruit for cost cutting(other than administrative salaries of course) I just hope we don’t see surgeons subjected to this digital guilt trip.Showers are the more logical application IMHO.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209107",
"author": "johnnyjp",
"timestamp": "2010-11-07T20:48:15",
"content": "Cool idea, but what about connecting this to the gadgets that light the water up as a colour? (see iwoot for example), so the water colour (from an led light) goes red when too much water is used?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209108",
"author": "theodore",
"timestamp": "2010-11-07T20:52:03",
"content": "well you can have the monitor at the tap or collect the data on your computer. as for the plastic plumbers use plastic pipes all the time. I have some in my house and I live in canada, use a jet pump and have hot days and cold winters. never had a problem yet with the pipes. as for installing it if you can’t do it your self you probably can’t figure out how to install it at the tap. Plus what is the point of monitoring the water at the tap when you have other sinks toilets and shower that you don’t monitor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209140",
"author": "echodelta",
"timestamp": "2010-11-07T21:59:49",
"content": "At last, something useful to quantify different users of same task. Even better yet, to measure my pet peeve.The amount of water wasted running up hot water thru uninsulated pipes, and the time wasted especially with the pee hole restrictions in new faucets and shower-heads. Make people wait longer for hot water, but don’t require that hot pipes be insulated to R-10 or higher. A bat of wall fill wrapped and tied will keep hot water on tap for an hour thru the coldest crawl space. Temperature contact measurements at the head of each pipe from under the deck coupled with flow should paint a clearer picture of a century of bad design, with layers of modern intervention.Hands free germ free, feet are free to do this task too. And don’t ever force people to use a thankless water heater, no thanks! They can not give a water conserving trickle of hot water, they switch off and back on. Go measure that waste too, before it over heats and almost starts a fire.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209152",
"author": "fluidic",
"timestamp": "2010-11-07T22:28:49",
"content": "This has been done, hardcore.HydroSense, the single-sensor whole-house water usage monitoring system.Since the household water system is a closed loop under pressure, their approach is to slap one sensor on this and monitor the change in pressure over time. It turns out that pretty much any use of water you do has a characteristic signal, to the point that it’s pretty easy to distinguish a toilet from a shower and so forth. Not in the least because the flow rate and typical use duration vary. You can even pin it down to the location in the house, so upstairs toilet versus downstairs.Most of the work is actually dedicated to trying to find ways to generalize information from one house to the next. The resulting signal is very dependent on the individual combination of fixtures and pipes and so forth. They’ve been trying (with quite a bit of success) to make it so that you can install the sensor without needing to do a lot of calibration against the specific house – which is what you’d want to start making these available to consumers en masse.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209162",
"author": "M4CGYV3R",
"timestamp": "2010-11-07T23:08:37",
"content": "The idea that less water use in our area will somehow translate to more water for those in dry areas who have no water is just preposterous. Even if I don’t use my faucet for a week, that doesn’t mean the water magically goes to Africa and comes out of someone else’s tap. It doesn’t work like that.I’m very sorry people are living in a desert, and water is very hard to come by, but that is not affected by my water use. The only thing affected positively by me using less water is my water bill.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209207",
"author": "Rachel",
"timestamp": "2010-11-08T01:04:50",
"content": "All these measures to reduce residential water usage are absolutely pointless. Agriculture uses two thirds of all freshwater, and upgrading a few dozen farms to drip irrigation will save far more water than thousands of homes with flow sensors. A great deal of water is lost by leaky mains pipes, too.It makes far more sense to go after the biggest wastes first, rather than the smallest.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209217",
"author": "Oren Beck",
"timestamp": "2010-11-08T01:48:24",
"content": "This is what I call a SOCIAL Hack in addition to it’s technical merit. As it’s got us thinking and discussing water conservation issues just by reading of it. Every house installing some incarnation of this and generating interest/awareness in family+friends is potentially more valuable as education than the few% of water the single install motivates saving.@johnnyjp: You’ve got a good basic concept in simply having an aerator packaged turbine with Tricolor LED+trivial processor for setting Red/Green alerts with some “warning” for operant conditioning.@echodelta: I am getting weird looks from my wife about how hard I laughed at your term “thankless” water heaters:} Yes- your description of them is spot on, as is the concept of simply insulating the plumbing.@Rachel: The chances of getting social pressure upon agribiz to improve their water management depend on social awareness like the featured Hack’s intent. It starts with each of us in some way. I *NEVER* thought the same way about water after having read Dune.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209225",
"author": "David S",
"timestamp": "2010-11-08T02:58:33",
"content": "You work with what you got, where you can. Last I checked you can’t walk onto a farm to install water saving faucets.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209252",
"author": "Jamie",
"timestamp": "2010-11-08T04:20:40",
"content": "…or you could just put a stopper in the drain to get some real-time visual feedback.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209279",
"author": "M H",
"timestamp": "2010-11-08T06:31:37",
"content": "For a faucet, the feedback device should be augmented with a timer to remind people to spend adequate time (20+ seconds) washing their hands.As noted above, undue focus on water conservation might lead to inadequate hygiene.http://www.ccohs.ca/oshanswers/diseases/washing_hands.htmlA simple modification that might improve public health would be to add a timer display to sinks in public washrooms. Many sinks already have electronic controls to turn them on. That control should also initiate a timer that would remind one to wash hands for 20 seconds, and count down the time. (This could be done with or without the flow measuring device.)A more ambitious project might be to arrange sensors that note when a urinal or stall is used but the sink is not used, then issuing a reminder to those exiting the washroom to wash hands.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209284",
"author": "sheergenious",
"timestamp": "2010-11-08T07:11:16",
"content": "When I first saw the device picture my immediate thought was they were using some sort of tiny turbine to give power to some usb device. Lol. I wonder how much energy could be harnessed from using some sort of device? I mean I know it would be pretty insignificant, but it would be neat to have the device that lets you know if you’re using too much water to be running off of the water itself eh? Is that possible?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209339",
"author": "qwerty",
"timestamp": "2010-11-08T10:17:00",
"content": "Toilet flushing is the biggest waste of water today, that’s dozens of liters per day for each person. Using only partially filtered rainwatrer for toilet flushing is a very cheap way to save drinkable one. Very nice project anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209397",
"author": "Philippe",
"timestamp": "2010-11-08T13:55:20",
"content": "Guilt, guilt, guilt…Save water at your tap, when in fact the most water is lost in leaks, unmaintained by your city for eons, despite the same taking your taxes. Agriculture too, of course.Save gas, slow down and reduce the emissions of your car, when the biggest polluter is manufacturing. Gas prices can come up, refineries make profit, and you can’t complain, because it’s BAD to buy gas anyway!Take your own bags to the grocery store or buy them at 5 cents: when your shirt comes from India, your computer from China and your car from Japan or Korea, this pineapple wasflownfrom Hawaii, half of the content of your grocery bag is imported!And to top it off, we are led to believe the planet’s temperature is going up. I vividly remember in the 70’s when they would talk of the next glaciation on TV. What kind of distance to we have? About seventy years since we first started to record temperatures? Ok, a century? In geologic terms, we’ve been on the planet a few seconds. What do we know?I’m not saying we shouldn’t be cautious and take care of our planet.I’m just saying all these efforts to limit our “footprint” are spent in very inefficient ways.The real culprits continue to churn toxic gasses and will not be bothered, while we are left with guilt, and the idea that we are doing something useful when in fact we are not.So…I will continue to wash my hands, but I’ll probably stop drinking bottled water.I could use my car a year longer than initially planned, or try to go to work once a week with public transit. Or maybe I could just work four days a week. I don’t need all this money, do I? I’d save on taxes.I could buy my fruit vegetables from a local producer and refrain from having fresh strawberries in December. Note to myself: go to the market on foot.I could lobby my municipality so that they actually do something about those aqueducts.There are a million ways to “save the planet” that make a lot more sense than what we are presented with. Just use your brains and stop accepting everything you’re told.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209400",
"author": "element_leader",
"timestamp": "2010-11-08T14:00:22",
"content": "Actually, that tap wastes hotwater, it mixes when pulled up straight in the typical manner; so not really a proper feedback to the consumer when there is added energy wasted– not to criticize the hack, kudzu to you on that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209450",
"author": "Truthhertz",
"timestamp": "2010-11-08T16:03:06",
"content": "Conservation of water? A great idea.Electronic gizmos to guilt people into conserving water? I dunno…these may not be as “green” as you think.Assume devices like this are manufactured and deployed on a large scale. How many gallons of fresh water will be consumed or befouled in the manufacture of the component ICs, sensors, LEDs and plastic accoutrements? How many gallons of water will be consumed or befouled in the production of the electricity needed to power all of these gizmos? Let’s not forget all of the oil that will be consumed, as well.Being green is not about guilt vs no guilt… and it’s not about reducing the impact of a single behavior while ignoring the damage caused by a litany of unintended consequences.Green is only green when a new technique, process, or tool reduces our systemic impact on the environment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209473",
"author": "Bunedoggle",
"timestamp": "2010-11-08T17:56:23",
"content": "Very cool idea. Just thought of another possibility for a project like this… Those LED lights that screw on your faucet are cheap and have two colors of light based on temp. Maybe you could use one of those to measure hot vs cold AND flow?http://www.amazon.com/Illuminx-HP-HC162-Faucet-Temperature-Sensor/dp/B00257ET8U",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209519",
"author": "walt",
"timestamp": "2010-11-08T20:23:37",
"content": "iPad??? really??? you couldn’t pull that off with an LCD screen or something?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209698",
"author": "P",
"timestamp": "2010-11-09T02:01:07",
"content": "@Oren Beck“The chances of getting social pressure upon agribiz to improve their water management depend on social awareness”Uhh how exactly would that happen? No amount of “social awareness” (by itself) will make agri-business change their ways. If simply being aware of a problem changed anything we’d have peace on Earth right now.“It starts with each of us in some way.”Your personal water-saving habits are not going to influence the activities of giant corporations. This is magical thinking that’s dangerously edging into “law of attraction/The Secret” territory.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209716",
"author": "Oren Beck",
"timestamp": "2010-11-09T02:42:29",
"content": "@PThe concept you tagged as (by itself) inherently depends on having PRESENTED a REASON for change. Yeah, simply making people aware of a thing won’t do much. The “Social Hacking” realm begins where awareness starts to lead.Giant Corporate Entities are primarily concerned with perpetuating their self-interests. Meaning their stock values etc. SO?If we can leverage awareness into things that impact stock prices/market share, as direct sale effects for example? Then changes will swiftly follow. The cute gadget that shows Joe Sixpack how much energy or water his lifestyle uses has not a fraction of the impact (by itself) compared to his changing what brands of stuff he buys- or does NOT buy. Which often is a result of knowing, plus “Social Hacking” forces. Which makes for a rethinking of Kill-A-Watt concepts applied to water.It’s a non-trivial result chain to be truthful. When we’re trying to dam a Niagra Falls of wasting, every sandbag eventually adds up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209872",
"author": "P",
"timestamp": "2010-11-09T08:22:26",
"content": "“If we can leverage awareness into things that impact stock prices/market share, as direct sale effects for example?”How do you negatively affect the stock price of companies which literally feed the country?Hint: the so-called free market offers absolutely no solution for this. looks like you’ve been duped by the “vote with your wallet” propaganda (which i must admit is very clever)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210483",
"author": "ryan",
"timestamp": "2010-11-10T18:56:41",
"content": "ipad + water = expensive doorstop",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.980852
|
||
https://hackaday.com/2010/11/07/exploit-bait-and-switch/
|
Exploit Bait And Switch
|
James Munns
|
[
"Security Hacks"
] |
[
"EFTPS",
"hack",
"malware",
"virus",
"Zeus"
] |
When a new virus or other piece of malware is identified, security researchers attempt to get a hold of the infection toolkit used by malicious users, and then apply this infection into a specially controlled environment in order to study how the virus spreads and communicates. Normally, these toolkits also include some sort of management console commonly used to evaluate successfulness of infection and other factors of the malware application. In the case of the
EFTPS Malware
campaign however, the admin console had a special trick.
This console was actually a fake, accepting a number of generic passwords and user accounts, and provide fake statistics to whoever looked in to it. All the while, the console would “call home” with as much data about the researcher as possible. By tricking the researchers in this way, the crooks would be able to stay one step ahead of anti-virus tools that would limit the effectiveness of any exploit. Thankfully though, the researchers managed to come out on top this time.
[via
boingboing
]
| 31
| 31
|
[
{
"comment_id": "209056",
"author": "pwnr",
"timestamp": "2010-11-07T19:17:27",
"content": "Though evil virus writers suck, I vote they put more emphasis and focus on OSX for a couple years ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209065",
"author": "Xed",
"timestamp": "2010-11-07T19:26:56",
"content": "Yeah, I’m tired of PC users getting all the virii’Why not wipe that smug, preppy, elitist hipster smile off of their faces and go after MAC products?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209068",
"author": "grenadier",
"timestamp": "2010-11-07T19:33:04",
"content": "^^ That",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209072",
"author": "zool",
"timestamp": "2010-11-07T19:42:24",
"content": "what’s the …. problem?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209076",
"author": "tre",
"timestamp": "2010-11-07T19:47:25",
"content": "Why not go after Mac products?That’s easy – world market share.All Mac Operating systems = 5%In the US, market share is up (mid 11%)… But the US is 3.07 million of a 66.97 million world.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209082",
"author": "anon",
"timestamp": "2010-11-07T19:57:19",
"content": "@XedThe plural of virus is viruses.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209084",
"author": "lelandjs",
"timestamp": "2010-11-07T20:01:08",
"content": "Why don’t people write viruses for OS X? Well, they do; there were trojans embedded in torrent of iWork and Photoshop not too long ago.Why aren’t there as many for OS X as there are for Windows? The ROI sucks. There’s a bunch more Windows users, meaning that there’s a better chance of the virus working on more computers.On the other hand, if you’re a Windows user and getting viruses in this day and age, you’re obviously doing something wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209090",
"author": "Belenos",
"timestamp": "2010-11-07T20:06:39",
"content": "@anonNot necessarily; if memory serves, ‘virus’ comes from a latin root, so the latinate pluralization could be indicated.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209092",
"author": "bigbob",
"timestamp": "2010-11-07T20:10:38",
"content": "Nobody ever writes viruses for macs (and probably won’t) because nobody keeps anything important enough on them to bother with trying to hack into… Unless by important you mean somebody’s garage band session or lame photo album.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209095",
"author": "Tech B.",
"timestamp": "2010-11-07T20:22:34",
"content": "@bigbobThe avarage mac user still uses the internet for important stuff, like email, bank accounts, …ectAnd their logged data could cash in pretty well on the market.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209098",
"author": "Sitwon",
"timestamp": "2010-11-07T20:27:01",
"content": "@anonWhile technically correct, you’re making the assumptions that:A) Xed was intending his message to conform to accepted English.This might not be the case. And, in fact, the non-word ‘virii’ carries historic connotations for many people familiar with one of the several internet dialects or pseudo languages that began forming in the early 80s. Though is is now officially a misspelling and has fallen out of use, it has always been jargon associated with a specific community of computer users.B) That anyone ever cared what the proper Latin-esque pluralization of ‘virus’ was.In fact, the mistake may have originally been intentional as humor, as a custom of the early 90s, to distinguish it from the medical usage, or simply because it sounded nicer than ‘viruses’.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209099",
"author": "Fabi",
"timestamp": "2010-11-07T20:27:48",
"content": "If there would be more Mac Users there would be more Mac Viruses.And Virii isn’t a true Latin Form.It sounds like vir(i) – the word for man",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209104",
"author": "fred",
"timestamp": "2010-11-07T20:43:35",
"content": "Well, this was an interesting read until the comments, which deserve a /facepalmThe plural of virus is viruses. Virii is an affectation by ubernerds who wish to flaunt their superior misknowledge of language.Then we come to the most famous argument of all: NOBODY does such and such. Have you questioned every virus writer on the planet, or every Mac owner? Or are you even aware of what is important anymore?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209105",
"author": "raith",
"timestamp": "2010-11-07T20:46:10",
"content": "The problem is that PCs have 95 percent of the market, and the other 5 isn’t solely mac but also linux and miscellaneous operating systems, the go for PC because it will hit the most people.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209138",
"author": "NatureTM",
"timestamp": "2010-11-07T21:54:35",
"content": "A little bit of social engineering definately goes a long way.This is just my opinion about the security of macs vs pc’s in the near future:If Apple’s user base keeps growing, Apple will soon have to reconsider it’s security model. We’ve all heard this. I just think it will be a big issue well before the number of Macs equals the number of PC’s.The threshold for Mac being a more appealing target for hackers should be defined as something like:if (probably of a mac malware infection success) * (mac population) > (probability of a win malware infection success) * (windows population), then hack the macs (assuming all boxes are equally valuable.)From what I’ve read, windows has a much better security implementation. It probably doesn’t make economic sense for Apple to invest too much money into something that isn’t yet a problem. As a result, the mac probability in the inequality above is likely much higher than the windows probability. We won’t need too many more macs before they become the preferred target. If Apple allows this to happen, they can say goodbye to the “I like Macs because I never have any problems” market, which is like everybody who buys a Mac.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209139",
"author": "sM10sM20",
"timestamp": "2010-11-07T21:54:40",
"content": "@raithYou said it all my friend. OSX in reality is no more secure than Windows, the only reason you don’t see as many vulnerabilities on OSX is because no one is looking for them.The kind of people that discover 0days are not stupid, if the market was 95% OSX then we would see more vulnerabilities on Mac computers. However as it stands Microsoft is the more profitable target.Anyone denying the above is a fanboy or computer illiterate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209155",
"author": "asdf-chan",
"timestamp": "2010-11-07T22:51:12",
"content": "First of all Mac or Linux, it doesn’t fucking matter you noobs, they have all security wholes.What i wanted to say is that they had this one time experiment, where Whitehats produced virus/malware ‘n shit and finding every day new technics and of course the anti-virus companys worked there ass off, but they could not stopp the fast flow of new bugs and virus. So it somehow managed to stay like this for the good of everyone, because a bug is never bad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209158",
"author": "Mi6",
"timestamp": "2010-11-07T22:52:41",
"content": "You’ve probably heard some rumours about MAC users being ghay? Let us dissect why no viruses are written for MAC systems. No one wants to be remembered through history as the first homosexual human to ever write an exploit for MACs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209227",
"author": "opcode",
"timestamp": "2010-11-08T03:04:03",
"content": "Every time I hear someone saying that MACs are better cz they’re more secure makes me wanna code a virus..Damn!!Look what they say: “A Mac isn’t susceptible to the thousands of viruses plaguing Windows-based computers. That’s thanks to built-in defenses in Mac OS X that keep you safe, without any work on your part.” more apple marketing bs here:http://www.apple.com/why-mac/better-os/There are people that actually think and support that MACs cannot get a virus!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209249",
"author": "ormon",
"timestamp": "2010-11-08T04:13:39",
"content": "Well. Flamewar.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209250",
"author": "lelandjs",
"timestamp": "2010-11-08T04:19:27",
"content": "@Mi6Can’t stop laughing at that.@opcodeSo far it’s actually been impossible for the “average” OS X user to get a virus; the only successful ones (read: released in the wild) have been embedded in illegal downloads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209253",
"author": "outleradam",
"timestamp": "2010-11-08T04:25:34",
"content": "You can’t write a “Linux” virus.1. Each distribution has it’s own pacakges which make up the interface. What works on one distribution, won’t work on another2. Package distribution is handled in a centralized manner on Linux. Software updates come from “headquarters”.3. You cannot run things directly from the browser. They have to be made executable and then run. The browser only has access to virtual machines.Which brings us to Trojans4. The package distribution systems are the preferred method of obtaining new software. Most users will search the distribution system before downloading and running untrusted software5. In order to do any kernel changes, the user has to enter a password. The kernel is the only thing the distributions have in common and that is controlled by kernel.org6. Linux users are smart. They’re all frickin’ computer geniuses. Ask a Linux user if they know a computer language, or how to directly interact with any device on their computer.All of these factors mean that a virus would never propigate on Linux. Even if they were sucessful at hitting GNOME desktop manager, or KDE, There’s always fluxbox or the huge plethora of others out there which will function just fine.Even if they hit a version of the kernel installed on the computer… The user can just switch kernels at boot time.If the virus was intended to wipe out all the data on the computer… Well, then it’s not going to propigate that way is it?Mac or Windows are a much better target. There is 1 desktop manager and 1 window manager. If you hit that, then you’ve got the entire computer. Linux is the way of the future because of this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209261",
"author": "TeejMonster",
"timestamp": "2010-11-08T05:08:04",
"content": "@outlerdamNot all Linux users are computer whizzes. My mother uses a Ubuntu that came with her Dell, and my aunt uses a Mint release that she downloaded and installed herself. Not that they’re dumb, but it wouldn’t be hard to imagine them compromising their systems by being too trusting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209273",
"author": "Digital",
"timestamp": "2010-11-08T06:10:21",
"content": "wow, my IQ just dropped 3 points trying to wade through all of that bad grammar and spelling. My head hurts now, thanks everyone.just a side thought… do you kids even know what the red squiggle signifies when it’s underneath a word you’ve typed?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209303",
"author": "wouter",
"timestamp": "2010-11-08T09:02:26",
"content": "sitwon = hero! xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209353",
"author": "Tom",
"timestamp": "2010-11-08T11:17:24",
"content": "PROBLEM, OFFICER?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209461",
"author": "phil",
"timestamp": "2010-11-08T16:58:21",
"content": "o hai there /b/ ಠ_ಠ",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209521",
"author": "walt",
"timestamp": "2010-11-08T20:25:38",
"content": "“hankfully though, the researchers managed to come out on top this time.”wtf is this site called again? you’re not even on the right side anymore!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209531",
"author": "Decius",
"timestamp": "2010-11-08T20:45:13",
"content": "It’d make sense hitting a Mac instead of a Windows user. They probably own an itunes account and some sort of bank information online you could easily swipe.Windows user would just pirate all their software lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210165",
"author": "Anon",
"timestamp": "2010-11-09T22:10:33",
"content": "▲▲ ▲",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212835",
"author": "anonymous",
"timestamp": "2010-11-15T10:41:37",
"content": "@Belenos & @SitwonBoth of you need to get a life.Sitwon:We conform to English because it is our native language, given that this website is written in English and the comment was in English, I would deem it necessary to correct in English.Which ALSOA) Developed from Latin roots.B) Is the language I am now completely conforming to.Belenos:Your memory serves wrong.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.874839
|
||
https://hackaday.com/2010/11/07/your-mobile-phone-now-with-100-more-rfid/
|
Your Mobile Phone, Now With 100% More RFID
|
James Munns
|
[
"Wireless Hacks"
] |
[
"pass",
"phone",
"rfid",
"subway",
"tag"
] |
More and more today, it is becoming harder to avoid having some sort of RFID tag in your wallet. [bunnie], of
bunnie:studios
decided to ease the clutter (and wireless interference) in his wallet by transplanting the RFID chip from one of his subway cards into his mobile phone. Rather than the tedious and possibly impossible task of yanking out the whole antenna, he instead pulled the antenna of a much more accessible wristband with an RFID chip of similar frequency instead. Nothing too technical in this hack, just a great idea and some steady handiwork. We recommend you try this out on a card you haven’t filled yet, just in case.
| 15
| 14
|
[
{
"comment_id": "208973",
"author": "Squirrel",
"timestamp": "2010-11-07T17:07:26",
"content": "Awesome!!Now madison just needs to build a subway system so that I can do this",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209016",
"author": "Gdogg",
"timestamp": "2010-11-07T18:08:23",
"content": "0 RFID + 100% more RFID = 0 RFID, FYI",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209032",
"author": "Bob",
"timestamp": "2010-11-07T18:59:04",
"content": "adhesive tape + two devices = hack?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209062",
"author": "Mr_Bishop",
"timestamp": "2010-11-07T19:20:00",
"content": "I will be going to YK in the spring, and I think they use RFID tags in the student ID, any suggestions on “low profile” rfid readers/spoofers and a rfid tag?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209251",
"author": "MS3FGX",
"timestamp": "2010-11-08T04:20:23",
"content": "@BobThe posted image might give people the wrong impression on this one. If you look at the write-up, bunnie shows how to remove the RFID chip from the card and attach it to a larger antenna from a different RFID tag.It isn’t the most complicated hack on the site, but the images and description of grafting a new antenna on an RFID chip is pretty interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209276",
"author": "Bob",
"timestamp": "2010-11-08T06:26:09",
"content": "Opinion retracted.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209290",
"author": "Jonathan Wilson",
"timestamp": "2010-11-08T08:02:20",
"content": "Be carefull doing this hack, depending on the transit operator, you might get in trouble with the rent-a-cops if they ask to see your ticket/pass.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "209328",
"author": "Pix3l the B1t",
"timestamp": "2010-11-08T09:50:06",
"content": "Usually you can claim to have “lost” your transit card, and get another for free/minimal cost. Just use the spare in case of that, and implant the RFID from the other into your hand/phone :)",
"parent_id": "209290",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "209297",
"author": "Bob",
"timestamp": "2010-11-08T08:28:13",
"content": "Are you saying that if I do this with the rfid tag in my passport, the customs agent won’t accept my phone as id?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209372",
"author": "James",
"timestamp": "2010-11-08T12:47:11",
"content": "Is it really so much harder to get a card out than it is to get a phone out? Or are we all glued to our phones these days, so it gets in the way of extracting a card from a pocket?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209440",
"author": "????",
"timestamp": "2010-11-08T15:46:06",
"content": "Younger people might not give a damn but older people +1 efficiency.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209442",
"author": "Caspan",
"timestamp": "2010-11-08T15:53:16",
"content": "I kind of did the same thing with much less work. I did have a huge case to work with on my Bold 9000http://caspan.com/?p=13have a look and tell me what you think. As well any experienced antenna users here that could tell me why phone manufacturers have not implemented this in phones yet?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209462",
"author": "Velli",
"timestamp": "2010-11-08T17:03:17",
"content": "@Bob:DUCT TAPE + two devices = hack.Also, any geek could rip off RFID. My favorite hack is to take a hole punch to my credit cards’ RFID chips.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210830",
"author": "Bob",
"timestamp": "2010-11-11T12:11:17",
"content": "FUCK THE CHIP!http://www.youtube.com/watch?v=k7Dr6poEl_0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "316700",
"author": "lizz",
"timestamp": "2011-01-28T10:57:17",
"content": "you guys great,,awsome feed. the info to read.thanks lizz awsome.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.754436
|
||
https://hackaday.com/2010/11/07/the-transistor-takes-on-the-machine/
|
The Transistor Takes On The Machine
|
Jakob Griffith
|
[
"Arduino Hacks"
] |
[
"Arduion",
"competition",
"hackerspace",
"imac g3",
"laser",
"racecar",
"scion",
"take on the machine",
"xbee",
"zombie"
] |
It only took 4 hackerspaces, but we finally get to see a zombie movie inspired project; hackerspace
The Transistor Takes on the Machine
with a Dawn/Shawn of the Dead movie theme. Race cars disguised as zombies swarm toward the players, who then use laser tag like guns to “shoot” down the approaching undead. The whole thing is a mess of Arduinos communicating with xBees to a central iMac G3, but it all comes together rather well and is promised to be released open source.
Now all that’s left is deciding which hackerspace
wins the competition
. Who do you have your money on?
[Thanks Deven]
| 3
| 3
|
[
{
"comment_id": "208949",
"author": "Pix3l the B1t",
"timestamp": "2010-11-07T14:48:29",
"content": "Cool! I assume that the zombies would have proximity sensing or something of the like so they wouldn’t collide. I think that these would be awesome if they had good swarm AI, i.e. flanking abilities etc. :pP.S.: Spelling mistake -> “… hacerspace The Transistor Takes on the Machine…” :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209088",
"author": "zool",
"timestamp": "2010-11-07T20:04:36",
"content": "i’d say the slot machine wins for overallzombies secondbreakfast machine thirdmusical store frontand then troncycle last…troncycle episode was pretty badit is kind of surprising that each place got 3k to work with and that’s all they came up with though,.. i know some things are expensive and they add up but they probably could have managed it a bit better and been more efficient",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209133",
"author": "M4CGYV3R",
"timestamp": "2010-11-07T21:48:36",
"content": "“The whole thing is a mess of Arduinos communicating with xBees to a central iMac G3”I think the only appropriate response is:AHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA! BWAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,340.918634
|
||
https://hackaday.com/2010/11/06/hacking-together-a-sous-vide-cooker/
|
Hacking Together A Sous Vide Cooker
|
Caleb Kraft
|
[
"home hacks"
] |
[
"cook",
"food"
] |
Those amongst you that are cooks won’t need this explanation, for the rest of us, lets just get this out of the way.
Sous Vide
is when you cook things at a temperature lower than normal, for a period of time longer than normal to attain specific results in texture. A chef can tell you more intricate details about it, but what we care about is how to impress our friends with a cheap hack and a tasty meal.
This video shows how to hack your slow cooker
for precise temperature control. Well, it really shows how to splice a temperature controller into an extension cord, so we guess it could be used for a ton of things, non Sous Vide related.
[via
Lifehacker
]
| 40
| 40
|
[
{
"comment_id": "208584",
"author": "pwnr",
"timestamp": "2010-11-06T17:48:02",
"content": "Nice hack – prime rib is a good example of food cooked sous vide!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208596",
"author": "nanomonkey",
"timestamp": "2010-11-06T18:08:56",
"content": "This is cool, but a true sous vide cooker circulates the water to ensure that the temperature is even throughout and transferred to the food efficiently. For clarification, Sous Vide is french for “under vacuum” as the food is usually encapsulated in a vacuum bag with spices or a marinade. The vacuum helps to inject the flavor deeper into the food and of course keeps the water bath out. One can cook eggs to the precise temperature that the whites congeal but the yolks stay liquid or meat to the point where certain proteins soften but others maintain their texture and then quickly sear the outside of the piece before serving for the nice smoky caramel flavorings that the maillard reaction emparts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208602",
"author": "Ryan",
"timestamp": "2010-11-06T18:16:45",
"content": "I’ve had great success doing sous-vide meat with a thermometer and oven (mix warm/hot tap water to get the initial temperature and leave it in the oven to slow cooling).It is just so easy to make flawlessly cooked meat – Throw some bags in the water and come back later.I’ve been meaning to make one for a while but haven’t had the time :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208607",
"author": "strider_mt2k",
"timestamp": "2010-11-06T18:33:12",
"content": "That sounds fantastic.look, I’ll build it for yas, just let me get some of that stuff you’re talking about, that’s all!Interesting!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208614",
"author": "Truthhertz",
"timestamp": "2010-11-06T18:45:08",
"content": "Where is the threshold between a “Sous Vide” and a bacterial incubator?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208632",
"author": "Pencilneck",
"timestamp": "2010-11-06T19:22:12",
"content": "I’ve done the poor man version, pour boiling water into a small ice chest. I’ve taken cheap pork ribs, put a little salt and pepper on them, vacuum seal (I do have a Food Saver). Toss into a small ice chest and pour boiling water into the chest, put the lid on. Wait 5 hours then remove the ribs and toss on the grill for a few minutes. The results are pretty good.This hack would work better because you would use a constant temp instead of a spiked high temp that slowly drops over time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208633",
"author": "chango",
"timestamp": "2010-11-06T19:30:50",
"content": "@Thruthhertz: 12 hours and a loogie.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208637",
"author": "Itwork4me",
"timestamp": "2010-11-06T20:05:42",
"content": "Perfect Saturday hack! I was gonna price these after I saw one online yesterday.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208642",
"author": "JazzyJ",
"timestamp": "2010-11-06T20:20:27",
"content": "The thermocouple should be a little deeper in the water. And I would go with an Auber PID Controller with a SSR and not make such a hack job of it. You can see the unit I made athttp://www.JazzyJ.caAs far as circulating the water you could use a simple aquarium pump however from the tests Ive done in my crock pot its not needed. However it will depend on how much food you are trying to cook in the crock pot.As for bacteria it is rather safe due to the absence of oxygen. But its safe to say that if cooked over 125-131º for 4 hours and served right away you are rather safe. However if you are not going to serve right away you need to shock the food in an ice bath and cool immediately.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208645",
"author": "jonny",
"timestamp": "2010-11-06T20:27:53",
"content": "Hey everyone I am a cook myself and we use a lot of sous vide cooking at my restaurant. But lately i’ve been interested in this new technology that combines cooking under a vaccum its called a gastrovac this is what the website explains as how it works… “By creating an artificial low pressure, oxygen-free atmosphere, the Gastrovac considerably reduces cooking and frying temperatures, maintaining the texture, colour and nutrients of the food.Moreover, the Gastrovac creates the “sponge effect”: when the atmospheric pressure is restored, the food absorbs the liquid around it, allowing infinite combinations of foods and flavours…”the only problem is for restaurants is it has a very steep price tag at $5000 a machine. its relatively new technology so nobody has really worked out all the possibilities with it yet. Could anybody tell me if it were feasible to build one for cheaper than the $5000 price tag. Thank you for your time",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208646",
"author": "therian",
"timestamp": "2010-11-06T20:37:43",
"content": "hooray for E. coli poisoning",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208647",
"author": "therian",
"timestamp": "2010-11-06T20:39:40",
"content": "the winning price is week long nonstop diarrhea",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208649",
"author": "Hackius",
"timestamp": "2010-11-06T20:43:16",
"content": "Won’t this breed bacteria like crazy?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208651",
"author": "Hackius",
"timestamp": "2010-11-06T20:43:35",
"content": "I mean isn’t that what shutdown the fat duck?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208654",
"author": "Chris",
"timestamp": "2010-11-06T20:53:18",
"content": "I love sous-vide!I’ve cooked about 50 meals to date sous-vide, always in Ziploc bags with as much air as possible removed manually, since I’ve never bothered to buy a vacuum sealer. Some of those were done in an old crock pot, with me periodically checking the temperature and adjusting the dial. Others were done in a pot of water in the oven. And recently, some in a recirculating water bath I picked up cheaply on Ebay. Here’s what I’ve learned:* For the best ease of use and consistency, you really do need both closed-loop temperature control and water circulation. Although you can still get very satisfactory results with far more primitive arrangements, just don’t expect perfect results all the time.* I’ve never poisoned myself, despite using Ziploc bags, and even sous-viding hamburger patties; which is more “dangerous” because the bacteria goes all the way through. The risk is generally overstated. There may be more bacteria left in a sous-vided item compared to a traditionally cooked item; however, that only becomes an issue if the item is stored improperly or too long after cooking. Not a worry here, anything I make gets devoured immediately, or refrigerated and eaten within a day or two. ;)* The biggest wins so far are chuck roast, which I’ve found really can resemble prime rib. Extra-thick hamburger patties made from lean ground beef, precooked to medium before a fast finishing sear. Precooking chicken pieces before battering and deep-frying, which ensures it’s never bloody in the center. And of course, the French Laundry style short ribs. Mmmm!The natural tendency when experimenting with sous-vide is to try sous-viding everything. But sous-vide just doesn’t benefit all things.* Lean pork, like pork tenderloins, is a fail. If you cook it to less than well-done, the flavor and texture are just weird. Cooking it to well-done fixes that, but instead of becoming tender with the longer cooking times, it just gets dryer and tougher. Traditional fast cooking works better here, especially if you use a temperature probe to tell when it’s done.* Sous-viding meat to a temperature less than well-done will NOT significantly render large fatty areas or tenderize gristle, regardless of cook time. Even for my chuck roast (which I cook medium), there are a few spots in the meat which must be cut out when serving.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208655",
"author": "JazzyJ",
"timestamp": "2010-11-06T20:57:17",
"content": "@nanomonkeyYou are wrong with eggs. While cooking eggs sous vide the yolk with actually solidify while the whites are a little runny. As seen herehttp://blog.khymos.org/2009/04/09/towards-the-perfect-soft-boiled-egg/@therianYou may want to do some more research on this cooking method.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208662",
"author": "Camerin",
"timestamp": "2010-11-06T22:10:34",
"content": "From a different, possibly more hackers friendly perspective, a group at University of North Dakota (where i am from) used this same concept to control an oven and there by make a cheap Re-flow oven. they simply went to walmart purchased an oven. removed all thermal control from it, placed a thermistor in it, use some A2D converts to read the temperature into a computer, then controlled a relay to turn the stove on and off (a really getto PWM) but it works and that is how we currently re-flow things. it was a approximately 100 $ build instead of purchasing a re-flow oven. also the code writen to control it could be adapted to do many more things. currently it just tries to match a temperature curve, and that curve is user defined.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208665",
"author": "John",
"timestamp": "2010-11-06T22:20:12",
"content": "Ok, I’ve read up on Sous Vide, and it’s rather risky with even good equipment. I’d be wary of eating anything out of this. The really nasty toxins seem to be generated aerobically.Thumbs up for the temperature controller use, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208666",
"author": "John",
"timestamp": "2010-11-06T22:21:05",
"content": "Anaerobically. The nasty toxins are generated Anaerobically.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208667",
"author": "zeropointmodule",
"timestamp": "2010-11-06T22:22:17",
"content": "nice hack.also potentially useful for melting small amounts of low melt alloys for the purposes of distributing the component metals evenly.on a side note has anyone here ever built a hot plate, if so which alloy did they use for the plate material? i want it to tolerate at least 500C (the maximum my temp controlled soldering station can handle) without melting or deforming.current setup is two soldering iron elements in series sitting on fire cement with a single internal thermocouple hooked up to the iron.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208668",
"author": "sillygolem",
"timestamp": "2010-11-06T22:23:19",
"content": "This method was used by a guy in Australia to turn a chest freezer into a very efficient refrigerator:http://mtbest.net/chest_fridge.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208681",
"author": "davi jordan",
"timestamp": "2010-11-06T23:12:18",
"content": "Why not use a microcontroller (and or old pc) and a temp probe to do the same thing. You could program it then.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208689",
"author": "wire",
"timestamp": "2010-11-06T23:45:54",
"content": "Lol at you americans you always thing gadgets make you better in . An italian cook with a hundred year old kitchen equipment makes hell of a better food than you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208696",
"author": "tantris",
"timestamp": "2010-11-07T00:44:54",
"content": "@truthhertz:slightly above 60°c.nanomonkey mentioned soft boiled eggs: you set it to 63°c. the yolk stays creamy below 65 but salmonella will get killed above 60. 15 minutes at 63 and you have save soft boiled eggs.if you want to incubate bacteria, you first sterilize, than add the bacteria and set it to around body temerature. the exact temperature depends on whether you’re growing thermophilia or mesophilia.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208721",
"author": "techartisan",
"timestamp": "2010-11-07T01:55:29",
"content": "Add an aquarium air pump and bubbler to circulate the water and maintain a more even temperature in the bath.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208725",
"author": "techartisan",
"timestamp": "2010-11-07T02:05:14",
"content": "http://seattlefoodgeek.com/2010/02/diy-sous-vide-heating-immersion-circulator-for-about-75/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208726",
"author": "Chris",
"timestamp": "2010-11-07T02:06:29",
"content": "I have some cored apples stuffed with cinnamon, nutmeg and raisins cooking sous vide at this very moment, at a temperature of 83C",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208727",
"author": "Chris",
"timestamp": "2010-11-07T02:06:51",
"content": "and brown sugar",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208732",
"author": "macw",
"timestamp": "2010-11-07T02:17:04",
"content": "@wire you might notice that the cooking technique has a French name. And if you think Italians don’t fill their kitchens with technology, just look at an espresso machine….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208755",
"author": "M4CGYV3R",
"timestamp": "2010-11-07T03:24:23",
"content": "I was under the impression that this required vacuum-sealing…at least that’s what the name implies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208822",
"author": "Whatnot",
"timestamp": "2010-11-07T05:42:51",
"content": "I’ll leave this cooking to the crazy french and maybe the japs.But the idea of hacking together an incubator this way isn’t too bad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208827",
"author": "Knuckleball",
"timestamp": "2010-11-07T06:36:31",
"content": "MOONSHINE!!!!!!!!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208830",
"author": "techartisan",
"timestamp": "2010-11-07T06:41:30",
"content": "@M4CGYV3R the food being cooked is vacuum sealed in a boilable bag.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208953",
"author": "MrX",
"timestamp": "2010-11-07T14:54:32",
"content": "“Clostridium botulinum bacteria can grow in food in the absence of oxygen and produce the deadly botulinum toxin, so sous-vide cooking must be performed under carefully controlled conditions to avoid botulism poisoning.”Leave “Sous Vide” to French people, they seem to be happy with little food in the middle of a big plate.Personally, I prefer pressure cooking. It is faster (still slower than microwave though) and sterilizes the food (really good to cook meat). Regarding the taste, pressure cooked meals are more juicy (there is more water retention) with stronger taste.There is a safety concern though, careful with the release valve. If you don’t keep it clean, you risk a “pipe” explosion in your kitchen – I never saw that happen though.What I saw happening, it does to pressure cooking newbies, is to open the pressurized container *while being heated*. Obviously, soon as you open it, the food will expand very fast and *BOOM* – food all over your kitchen.One time I was pressure cooking some meal and a friend went to the kitchen while I was staying in the sofa – *boom*, I heard. LOL, she said she wanted to see if the cook was going *well*. Unfortunately you can’t open it in the middle of the cook, you have to wait until it is depressurized.– mods, please delete my previous post.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208954",
"author": "MrX",
"timestamp": "2010-11-07T14:57:48",
"content": "@Ryan Try pressure cooking the meat instead. It will also preserve meat consistency, it is faster and kills all bacteria.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209078",
"author": "techartisan",
"timestamp": "2010-11-07T19:50:03",
"content": "botulism is of little concern if you are using sous vide and immediately consuming the food.Restaurants often use a cook-chill or cook-freeze protocol when using sous vide due to time constraints on service. This is where the fear of potential botulism comes into play.http://amath.colorado.edu/~baldwind/sous-vide.htmlPressure cooking has an entirely different effect on food then sous vide. Each has its place but neither is a substitute for the other. Theyre apples and oranges to each other.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209221",
"author": "Greycode",
"timestamp": "2010-11-08T02:03:32",
"content": "Two words, Crock Pot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "312708",
"author": "Michael",
"timestamp": "2011-01-23T20:23:39",
"content": "The fat duck got shut down due to contamination unrelated to their method of vacuum cooking: due to pure personal hygeine contaminating the environment. Safety is necessary when using any cooking technique but moreso with sous vide. It is not to be done without any expertise, especially not by someone HACKING together a cooker. Professional devices (Sous Vide Magic: Fresh Meals Solutions) are not that expensive; $250.You must always bring meat to a higher temperature of 72 to pasteurize it before beginning low heat cooking. In order to reach 72 degrees the water temperature must go up to 76 to compensate for thermal loss to the bags, etc. Having a straight up temperature controller will not include this computer programming (fuzzy logic) and it will accurately control rises in temperature either.Ironically the model of slow cooker they are using (I BELIEVE) already has a built in thermometer/temperature control computer in it. I had a model like that. It is much more effective to cook ribs this way in broth (poaching) than it is to cook them in a plastic bag. The reason for using the plastic bag isn’t to achieve tenderness, which is easy to achieve in a poach, but to create extremely pronounced flavour, which requires a multiple day cooking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "312710",
"author": "Michael",
"timestamp": "2011-01-23T20:25:01",
"content": "Sorry, final clarification: meat gets cooked to the desired temperature (like 65 celsius) not 72, but the bag containing the meat must first reach a temperature of 72, which is still not enough to cause the outside of the meat to grey.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "374319",
"author": "Mikey Sklar",
"timestamp": "2011-04-05T21:34:46",
"content": "I think Jeff Potter did a real service to the geek world with this video. While the setup is a little rough it inspired me to rig up my own sous-vide kit which is microcontroller driven and a little more broad in application.http://screwdecaf.cx/yatc.html",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.098749
|
||
https://hackaday.com/2010/11/06/step-by-step-antique-radio-repair-and-upgrade/
|
Step By Step Antique Radio Repair And Upgrade
|
Caleb Kraft
|
[
"home entertainment hacks",
"Repair Hacks"
] |
[
"radio",
"retro",
"tube"
] |
[M3talhead] takes us through a very informative repair of an
old tube radio
. In this case, his radio was from the late 30s. He was able to find the original data from
Radiomuseum.org
. He painstakingly dismantles the radio components and the cabinet. Instead of completely modernizing the internals, he replaces the bad parts and brings it back to functionality. He wanted to do an MP3 upgrade, but rather than wire directly into the radio, he built an AM transmitter for his mp3 player.
| 20
| 20
|
[
{
"comment_id": "208526",
"author": "wouter",
"timestamp": "2010-11-06T15:15:12",
"content": "I’m going to mod my brAun 199 (1975) so it will be sort of like a squeezebox.. but the restoration is taking far more time than I thought..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208582",
"author": "Joe",
"timestamp": "2010-11-06T17:41:14",
"content": "It is great to see someone restore a nice looking old radio. I have done quite a few myself and would like to add a few comments.First, NEVER plug in any old tube equipment to “see if it works”. Most likely, the electrolytics are dried out and may be shorted, which could cause damage to the rest of the radio.Second, assume that ALL the capacitors in the radio are bad and need replacing (except the silver mica caps). The electrolytics are dried out and the paper/beeswax caps have absorbed moisture. I’m not sure why the OP used mylar caps when replacing the electrolytics. You can keep the electrolytics (the big cans) on the chassis for looks. just cut them out of circuit and replace with modern parts underneath.One place to get these high voltage caps is an outfit called justradios.com. He stocks the values needed for old tube gear.I would do a restoration in a slightly different order than the OP. The first thing after a general cleanup is replacing the caps. Then go through and check the resistors. They will probably drift high in value over time. Replace as needed. Only then should you worry about checking the tubes. Most of the time, the tubes are fine. Use a good quality tube checker, not the type that was common in stores for use by the average customer. Those were designed to fail good tubes. Unless you like wasting money, don’t just replace all the tubes.In radios with power transformers, make sure the transformer is still ok and the windings are not shorted. On the common AA5 radios, there is no power transformer. Speaking of AA5 radios, you should use an isolation transformer when powering these up so you don’t electrocute yourself.One last step that is often needed is an alignment of the radio’s RF and IF stages. You will need some basic equipment like a signal generator and some alignment tools. The procedure is not hard and is usually documented in the radio service data that you will find on the sites mentioned by the OP. For pre-WWII radios, look for “Rider’s”, which was like the later “Sam’s Photofacts”.Some early radios used rubber insulated wire (late 30’s Philco in particular). If so, the rubber will have hardened and cracked, leaving lots of bare wire. Moving this wire to replace parts will make things worse. The best course of action is to simply sleeve every wire with heatshrink tubing by unsoldering one end. It’s a pain, but necessary with rubber insulated wire. If you have cloth covered wire and it looks ok, leave it alone.If you have a variac, you can slowly bring up the AC power to your just repaired radio. This is a good idea, in case something is shorted or something is miswired. Remember, you’re dealing with high voltage here. If you don’t have a variac, make a simple “dim bulb tester” (google it).There are other subtleties involved in restoring old tube equipment, but the basics I’ve outlined will take care of most situations.Some of these old radios were very attractive. It is very cool to listen to your favorite music or programs on a classic tube radio. Just like Dad, Grandad, etc. used to.If you want a high quality AM transmitter to broadcast to your newly restored radio, I can recommend the kit from sstran.com. Any of the less expensive transmitters are junk and will drift badly.Joe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208616",
"author": "Truthhertz",
"timestamp": "2010-11-06T18:49:47",
"content": "@Joe-I *would* check the tubes… at least to this extent:First, make sure that they are the *correct* tubes in their *correct* positions. You never know if some dufus before you– someone who thinks that all old radio problems stem from tubes– didn’t mix them up or even insert the wrong kinds because he had some extras lying around.Second, I would at least check filaments for continuity… something easily done with an ohmmeter. Of course, if you turn the set on and visually see that they are all lit, fine, but that’s not always the case.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208650",
"author": "Dave",
"timestamp": "2010-11-06T20:43:29",
"content": "Re. Any ideas about plugging or wiring modern audio kit (like an mp3 player) into an old radio – DON’T! Well, not unless you know exactly what you are doing in the way of isolating the connection. Early UK radios had a “live” chassis, i.e. one side of the mains was directly connected to the chassis, which could prove lethal at the UK voltage of 240, a resistive dropper being used to supply the voltage for the valve (tube to you folk across the pond!) heaters. I imagine USA versions would be no different in principle, so be careful. There was nothing in the way of mains isolation in “the old days” !!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208670",
"author": "Joe",
"timestamp": "2010-11-06T22:24:42",
"content": "@TruthhertzI didn’t say not to check the tubes. Just that this isn’t the first concern, as most people think. The tubes should definitely be tested.I have a 1932 Philco cathedral-style radio. As old as it is, I only replaced one tube because it was weak, not totally bad. OTOH, I recently did a car radio for a Nash and it had three bad tubes.Joe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208674",
"author": "Joe",
"timestamp": "2010-11-06T22:35:23",
"content": "@DaveGood advice. I was going to mention that as well, but forgot. Interfacing modern electronics to old tube gear can be very hazardous to you and your equipment. The safest method would be some type of optoisolator.Many American tube radios also were connected live to the AC wall outlet. This design is called an AA5 (All American Five). It has no power transformer and uses five tubes. The tube filaments were connected in series, so that the total voltage drop was aproximately 115V. This saved the manufacturer the cost of a transformer. What is even worse is that in this design, usually the metal chassis is hot and the neutral is switched — DANGER WILL ROBINSON! This is the reason I suggested using an isolation transformer.Joe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208675",
"author": "hoodoo",
"timestamp": "2010-11-06T22:47:18",
"content": "fuck instructables.. stop posting links to instructables",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208676",
"author": "Joe",
"timestamp": "2010-11-06T22:47:50",
"content": "Again about interfacing your MP3 player to the radio. The original OP was smart and used an AM transmitter, which requires no hazardous interfacing and is the safest method.The transmitter design that he used will do the job, but is on the level of a Mister Microphone toy and will sound like crap. It also can’t be tuned to another frequency if 1KHz is in use in your area.The SSTRAN kit that I mentioned is the least expensive, good quality AM transmitter that I have found, and I have looked. I bought two over the years.Joe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208677",
"author": "Joe",
"timestamp": "2010-11-06T22:50:27",
"content": "@hoodooI agree with your sentiment. Instructables is a nuisance unless you’re a member (I’m not).If you don’t need the pretty pictures, just follow the good advice posted in these comments by myself and others.Joe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208693",
"author": "Jordan",
"timestamp": "2010-11-07T00:33:27",
"content": "I got a Philco 16B cathedral radio for almost nothing in the summer. It’s in horrible shape but I figured it might be a good project to restore the thing some day. The wood cabinet is trashed :(The rectifier is burnt out, likely from it being turned on after however many years of sitting untouched.Anyway the article and posts here are great and I’ll be checking back if I ever get around to working on it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208714",
"author": "Joe",
"timestamp": "2010-11-07T01:10:55",
"content": "@JordanHere are a few sites with info about your radio. There was also a later Philco 16B that was a “tombstone” shape.http://www.tuberadioland.com/philco16_cathedral_main.htmlhttp://www.philcoradio.com/phpBB2/viewforum.php?f=12Here is a picture of my Philco 52:http://goo.gl/CGee8Good luck on the radio.Joe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208717",
"author": "Fallen",
"timestamp": "2010-11-07T01:37:08",
"content": "Agreed on the instructables. That site is a pain to navigate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208744",
"author": "Mike",
"timestamp": "2010-11-07T02:36:02",
"content": "Joe is an idiot. Go hack something and shut up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208933",
"author": "AussieTech",
"timestamp": "2010-11-07T12:32:20",
"content": "I had a British set marked “AC Only” with a (heater) transformer which nearly killed me because it still had direct on mains live chassis HT, so don’t just assume a tranny means an isolated chassis!Happy and safe restoration fellas.(Instructables – a good idea badly done.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209097",
"author": "strider_mt2k",
"timestamp": "2010-11-07T20:25:24",
"content": "Agreed.Great project.andInstructables BLOWS",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209435",
"author": "lwatcdr",
"timestamp": "2010-11-08T15:28:19",
"content": "For most people I would think that they way they would interface modern electronics to an old radio would be replacement.. I found an nice old that was missing all of it’s electronics. I was very tempted to fill it and MP3 player and modern radio. A friend of mine is into old radios and had a one that would fit so I gave it to him.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209498",
"author": "Toob Noob",
"timestamp": "2010-11-08T19:07:17",
"content": "I started with a project like this, intending to replace the old electronics with new. Went with a close visual inspection, removed the original unit, spent a couple of hours gently cleaning the accumulated dust, googled around for the schematics, found them (!) and started getting curious about this thing. I’d never worked with anything tube-based before, and probably wouldn’t again, so… no time like the present.It already had an isolation transformer built into it. Most of the wiring looked OK, so I tested a few caps (in-circuit, which is poor practice) to see if the values were sane, and they were. Dog-bone style resistors were correct (had to Google around to figure out how to read ’em!) Got really curious and decided to grab a Variac and fire it up (against good practice) “just to see” what would happen (I GOT LUCKY. DON’T DO THIS!) But after a few moments, when the tubes started getting warm, I turned the lights out (so I could see which tubes were glowing) and turned the Variac up.At around 3 in the morning, this hunk of 75-year-oldunrestoredhardware was producing a dim orange glow from the tubes behind it, a pretty white glow across my bench from the light bulbs that illuminate the dial… andmusicfor the first time in about 30 years.At which point I forgot about the MP3 player. The line cord was slightly frayed and was replaced the next day.Since then I’ve done some googling to find out ways of making replacement caps that looked like the originals, and have replaced ’em. The only change to the unit is a little sticker placed inside the metal frame for the next servicer/restorer to see it: “Tested/working 2009. Embedded modern electrolytics in wax/cardboard tubes, replaced original caps 2010.”, and a small bag stapled to the cabinet, labeled “original capacitors ca. 1935”)One spot didn’t get cleaned – the part where I saw my grandfather’s initials and a date written in pencil – he must have worked on it some time in the 60s. There was also a thumbprint nearby. So I put a big greasy thumbprint next to his, along with my initials and a “2010”. Over the next few decades, that thumbprint etch itself into the metal, just like his, and said “Thanks, Gramps”, as I contemplated that he’d been hacking hardware before I was born.Thanks for this project. (Dammit, something in my eye. Must be all the solder fumes…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209882",
"author": "Joe",
"timestamp": "2010-11-09T09:03:01",
"content": "@Toob NoobAren’t you glad you didn’t gut that radio and make it “cool” with modern electronics? I’m sure it means much more to you in restored condition. Your Grandfather would be proud.What is the make/model?Joe",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2380076",
"author": "chris",
"timestamp": "2015-01-25T22:17:44",
"content": "i read this colum waytoo fast but think im talking to joe?i dont know if there is a market to be suportive of a guy that broke his back 8 years ago but if there is a way to make a living reparing old radios, ive been lucky n fixed a few but having no schooling in this feild mabey its too long a processs to learn …if you could help , ive always been into old radios ,mother said since i was about three…….have a small collection of old zenith panasonic philco and just got my airline… pre 40s i think as is am sw has a phonograph in it.. pull out the speaker n it has a 78 rpm in it motor dosent work but its a keeper.fixed my first transistor radio in 60 was just a battery wire but got hooked so i guess is there a market for fixing….also do woodwork. not into vineer but might learn that as well have a friend that redid furniture n he would teach me veneer i think if you could help n answer this……i still work as maint man in housing factory but dr kolby ,m doc for 30 years said i should b a wall-mart greeter….thought he was joking but afraid not so at 59 is it worth loookig into this project as im sure id love to do sompthing i love to do. thanx in advance chris",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2380083",
"author": "chris",
"timestamp": "2015-01-25T22:23:01",
"content": "i dont use this computer except to check lotto numbers but will check everyday for your reply,if joe isent who i need to be askink this question, ill take a reply from anyone that might help thanx,chris",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.23662
|
||
https://hackaday.com/2010/11/06/some-weekend-robot-goodness/
|
Some Weekend Robot Goodness In Link Form
|
Caleb Kraft
|
[
"Hackaday links"
] |
[
"books",
"robots"
] |
PBS Newshour
did a piece on robots
. They talked about NASA’s bot pictured above, Asimo, Big Dog, PR2, Robbie the robot and a few others. We didn’t see anything new, but we really do like the coverage getting out there. We also never need an excuse to watch that guy kick big dog around for a while. We know it’ll only be a matter of time before the tables are turned.
Willow Garage, the folks behind PR2, are
conducting a survey
to see what your favorite robot is. Their list is pretty short, but they did leave a spot for you to add a name. The picture above, is not from willow garage though. This is the picture I got from
BotJunkie
(we love this site) where I found this story. They didn’t attribute the artist, but I feel they need credit, it is an awesome shirt.
It turns out that it is a t-shirt design available at the
chopshopstore
. You can see that their eyes are done in glow-in-the-dark material. On a side note, the
hackaday store
just got glow in the dark material yesterday(as well as a re-design) and will be announcing several new designs in the near future.
I personally inherited several huge boxes full of sci-fi pulp. The robots I’ve seen in these are amazing, ranging from amazingly ridiculous to amazingly awesome. I’ve only just begun scanning in the covers, and plan to
post at least one a day
. You know what would be awesome though? If I had
one of these
.
| 7
| 7
|
[
{
"comment_id": "208515",
"author": "daniel_reetz",
"timestamp": "2010-11-06T14:19:46",
"content": "Oh man, yeah, you really DO need a DIY Book Scanner. Those instructions are pretty outdated… be sure to check out some of the one-camera designs or our “new standard scanner” on the forums. A lot has been done since that Instructable was posted.If you’re just interested in scanning the covers, you could do them all in an afternoon with copystand, a camera, and some lights. I digitized about 3K family photos that way.Anyway, great project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208527",
"author": "Itwork4me",
"timestamp": "2010-11-06T15:20:38",
"content": "Robot goodness in link form = some posts your friend on facebook sent you. Lazy Saturday I guess…no hacks but a tube radio! Come on!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208550",
"author": "itwerx",
"timestamp": "2010-11-06T16:36:33",
"content": "@Itwerk4me – that’s HaD’s way of pushing you to do something of your own. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208604",
"author": "jeditalian",
"timestamp": "2010-11-06T18:23:50",
"content": "i like how the astronauts got tired of the analprobes and built a robot. i wonder what surprises they packed in there for the offending aliens?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208658",
"author": "dmo",
"timestamp": "2010-11-06T21:41:16",
"content": "Oh, man. Are you lucky. So many stories by some of the greatest sf writers. My college had a bunch of old sf paperback novels back in the stacks and that was some of the best reading. The cover art is almost always more intriguing than a lot of contemporary stuff. Nostalgia is a wonderful thing… If you could only scan it all and sell a dvd with all the contents.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208686",
"author": "hammy",
"timestamp": "2010-11-06T23:34:05",
"content": "Assertion: HK-47 does not concern himself with with the opinions of meatbags",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208742",
"author": "Matthew Richmond",
"timestamp": "2010-11-07T02:32:33",
"content": "The robot art/shirt image should be credited to Chop ShopThanks for asking about the credit, you are a force for good.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.025757
|
||
https://hackaday.com/2010/11/08/the-v4z80p-the-8-bit-laptop/
|
V4Z80P: The 8-bit Laptop
|
James Munns
|
[
"laptops hacks"
] |
[
"cpld",
"fpga",
"laptop",
"Spartan",
"xilinx",
"z80",
"zilog"
] |
[Phil] over at Retroleum has cobbled together a clean, well put together
laptop
based entirely around a
Zilog Z80
microprocessor and a pair of Spartan II FPGAs. These FPGAs allow him to reduce the number of devices on his board, and therefore cut his production cost as well as device size. He even managed to integrate a salvaged PSOne screen. The laptop comes complete with [Phil]’s own Homebrew OS as well as a great graphical vector based demo.
Sure he’s updated the project in recent years to shrink the board, speeding up the Z80, and increasing the peripheral speed and functionality, but we’re suckers here for a
total package
hack. Seriously though, check out the
newest version
of the device as well as the backlog that shows the project growing over time.
Thanks to [Steth] for the heads up.
| 14
| 14
|
[
{
"comment_id": "209543",
"author": "javajunkie",
"timestamp": "2010-11-08T21:24:53",
"content": "Reminds me of my first laptop.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209546",
"author": "Richard",
"timestamp": "2010-11-08T21:27:18",
"content": "That’s so cool it hurts… lovely work Phil :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209547",
"author": "raith",
"timestamp": "2010-11-08T21:35:54",
"content": "maybe I should build one of these, I have a few pieces from an old laptop laying around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209613",
"author": "cbob",
"timestamp": "2010-11-09T00:46:06",
"content": "Whoa, The Sinclair laptop that never was.(now I’m off to pine for the days of frugal memory management & tight code as the norm)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209723",
"author": "Parker",
"timestamp": "2010-11-09T02:55:21",
"content": "But my TI 84 Plus SE has a 15mhz Zilog Z80 processor. Just kidding. Great job and nice construction.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209766",
"author": "DeKay",
"timestamp": "2010-11-09T04:30:45",
"content": "That’s one big bezel!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209905",
"author": "hairymnstr",
"timestamp": "2010-11-09T10:19:24",
"content": "Just a clarification:I’ve been following Phil’s site since V2 with great interest, it was a significant inspiration towards my own Z80 projects. This is a fairly old project, current development is definitely around the V6Z80P+. As far as I’m aware however there has never been any attempt to “virtualize” the Z80 as the article states, even the latest has a real Z80 and an FPGA to replace the “glue logic”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209906",
"author": "strider_mt2k",
"timestamp": "2010-11-09T10:36:54",
"content": "Nice!Reminds me of Pandora a little, only without the lame excuses and bullshit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210014",
"author": "James Munns",
"timestamp": "2010-11-09T17:09:29",
"content": "@hairymnstr after I reread his update of the v6, I realized that I had mistakenly assumed he had virtualized the Z80, something he talked about doing in the v4 (but hadn’t implemented).Thanks for pointing that out, i’ve updated the article to reflect that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210333",
"author": "Derek",
"timestamp": "2010-11-10T07:55:53",
"content": "@strider_mt2k – You’re obviously not a member of the industry. If trolling is your M.O., go back to 4chan until your ready to try talking out of your mouth as opposed to your ass.I’m sure we’ll still be around.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211161",
"author": "George Johnson",
"timestamp": "2010-11-12T01:18:08",
"content": "This is great!! I LOVE the Zilog Z-80!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213252",
"author": "Vince",
"timestamp": "2010-11-16T05:52:45",
"content": "WANT!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "379166",
"author": "tbase",
"timestamp": "2011-04-13T00:13:43",
"content": "@cbob- there was a Sinclair “laptop”, I used to do tech support for them, even talked to Mel Torme once :-)http://en.wikipedia.org/wiki/Cambridge_Z88",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "549454",
"author": "DO WANT",
"timestamp": "2012-01-02T23:34:23",
"content": "i want one",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.290972
|
||
https://hackaday.com/2010/11/08/swiveling-arms-replace-laptop-lcd-hinges/
|
Swiveling Arms Replace Laptop LCD Hinges
|
Mike Szczys
|
[
"computer hacks"
] |
[
"ben heck",
"laptop",
"lcd",
"notebook",
"screen",
"swivel"
] |
This swivel arm LCD screen
is [Ben Heck’s] latest hack. It replaces the hinges that normally only allow one point of rotation on the screen. You can still use the laptop like normal, but when space is at a premium a second adjustment, both in rotation and linear position, has been added using the slots and screw knobs seen above. Ostensibly this is to use on an airplane, where there may not be enough space to fully open your laptop. We’ll let you decide if it’s wise to try to get your own hacks past airport security. Historically, the
TSA hasn’t been impressed with hardware hackers
. We like how this came out and could see ourselves using these techniques to make a convertible tablet notebook by reworking the cable routing.
We’ve embedded [Ben’s] quick demo of the finished product after the break. If you want to see the whole build process it is the subject of
Episode 5 of the Ben Heck Show
.
[youtube=http://www.youtube.com/watch?v=4Iz-81VIsyg]
[Thanks Geoffrey via
Engadget
]
| 24
| 24
|
[
{
"comment_id": "209523",
"author": "24601",
"timestamp": "2010-11-08T20:33:26",
"content": "Is this video another one of those where he starts one project, then in the middle switches to a different project for most of the video, before finally finishing the first project? If so, PASS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209525",
"author": "fartface",
"timestamp": "2010-11-08T20:35:11",
"content": "Is he majorly FAT to not have the room on an airplane to open his laptop?Cripes I even had plenty of room to use my 17″ on one of the Delta puddle jumpers. unless his gut sticks out and his fat flows everywhere there is plenty of room for a laptop to be fully open.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209530",
"author": "arfink",
"timestamp": "2010-11-08T20:44:26",
"content": "I have met Ben Heckendorn in person, and he’s actually as skinny as a rail. However, if you’re into actually being able to type on your laptop you should know that having the keyboard pressed up against your stomach is hardly helpful. This is so that you can have the base of the laptop a bit farther away and put the screen into a better position. Personally I think it’s a clever design. Also, being able to flip the screen around like that would make an ideal way of making a flip-tablet laptop thingy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209535",
"author": "Wolfton",
"timestamp": "2010-11-08T21:08:03",
"content": "Although TSA may have thier reservations about allowing this in flight…I hate, no I HATE it, when I’m using my 17″ or even my 12.1″ Tablet on an airplane and the incredibly inconsiderate yahoo in the seat in front of me abruptly reclines his seat while I’m using my tray table not only to support my laptop but ALSO my shallow cup of Coke the flight attendant just poured for me.Hooray for Ben Heck!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209537",
"author": "JONnyboy",
"timestamp": "2010-11-08T21:12:23",
"content": "This could also make a sweet all-in-one mode for watching movis on a desk, using a touchscreen, etc.Good job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209539",
"author": "F-o-CUS",
"timestamp": "2010-11-08T21:16:54",
"content": "looks great.I’d love one!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209548",
"author": "asheets",
"timestamp": "2010-11-08T21:38:20",
"content": "I think we just saw the prototype of Ben’s next commercial product…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209551",
"author": "mbear",
"timestamp": "2010-11-08T21:57:34",
"content": "Actually there was an IBM Thinkpad that used to do this. It was a proto-tablet model in the 7XX range (I think).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209554",
"author": "Wizzard",
"timestamp": "2010-11-08T22:07:54",
"content": "Vadem/Clio did this way before Ben and IBM did- Produced and sold en-masse in 1998.http://www.pencomputing.com/archive/PCM25/hardware25/vadem_clio.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209556",
"author": "5318008",
"timestamp": "2010-11-08T22:12:11",
"content": "This is like that new Dell (Toshiba? Something, whatever) laptop/tablet that’s out that has a swiveling screen. There’s an actual, commercial, purchasable-now product out there with a swivel screen. But not extensible, which gives me the idea that every laptop from now should have in-built the ability to extend the screen upward once the lid’s open, to improve ergonomics. Wouldn’t be too hard or add much expense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209559",
"author": "jim",
"timestamp": "2010-11-08T22:18:02",
"content": "Very clunky and fragile looking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209564",
"author": "Martin H.",
"timestamp": "2010-11-08T22:28:43",
"content": "@mbear: It was/is the IBM Transnote (P3 with 600 MHz). It has a 10 inch touch display and its base is a bit larger than A4 and letter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209578",
"author": "cmholm",
"timestamp": "2010-11-08T22:47:35",
"content": "I agree with Wolfton and arfink that this design can make it much easier to get a good viewing position in-flight (among other places). My PB G4’s video flex cable shows signs of being close to giving up the ghost, so it’s nice to have an alternative approach when it comes time to fix it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209579",
"author": "Erik",
"timestamp": "2010-11-08T22:50:34",
"content": "Is he fat? No. He’s tall. I have the same problem on planes. More so when the person in front of you pushes their seat back. I’d love this on a laptop. It looks a little fragile But other than that it’s pretty solid in my opinion.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209581",
"author": "cmholm",
"timestamp": "2010-11-08T22:50:43",
"content": "OT, looking in the background of the photo… exactly how many old game carts has he got stacked underneath his DVDs?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209590",
"author": "Hirudinea",
"timestamp": "2010-11-08T23:16:44",
"content": "Every laptop should have this, with just a little twisting you could make it into a tablet too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209610",
"author": "luke",
"timestamp": "2010-11-09T00:38:57",
"content": "WHYYY?? :'( every time i have a good idea either someone else comes up with it after me but publishes it before me or i realise its from a vague maemory when i eventually re-discover it.i though of this two years back. haven’t got round to making it yet and im only 13 so its not like i could get a patent or do anything amazing that costs money.anyone else have this happen to them or is it just me?(i am not accusing you of stealing)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209681",
"author": "aztraph",
"timestamp": "2010-11-09T01:55:10",
"content": "nice idea, i like it, but did he have to make the transformer noise? seriously, i have some spare laptops, think i’ll try this, good job",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209706",
"author": "wernicke",
"timestamp": "2010-11-09T02:20:30",
"content": "I’m tall enough that I refuse to even try to use my laptop inflight. Not worth the hassle.What I’d like to see is a dual-head transformer-like laptop with two monitors that and have some reasonable positionability.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209709",
"author": "jeditalian",
"timestamp": "2010-11-09T02:36:21",
"content": "time to exhibit scissorphobia. since scissors probably weren’t invented in time to make a latin word, Xyrophobia is the fear of razors.. anyway: flexible steel cable shielding.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209712",
"author": "jeditalian",
"timestamp": "2010-11-09T02:38:06",
"content": "a little preemptive googling would have helped here.. nice thingamajig, i wish my phone did that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210050",
"author": "davo1111",
"timestamp": "2010-11-09T18:31:03",
"content": "its cool, i like the design. I admire his soldering skills.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210514",
"author": "ARG-A-TRON",
"timestamp": "2010-11-10T20:43:21",
"content": "SOOOOO disapointed that he never bothered with a touchscreen conversion kit… that would have made this worth doing…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211753",
"author": "Star Simpson",
"timestamp": "2010-11-13T05:22:35",
"content": "As the hardware hacker in question mentioned with respect to airport security, it is NOT the TSA who had any issue with my breadboard sweatshirt.* For the TSA to have taken issue with it, I would have to have been trying to board a plane* Massachusetts State Police, who did, != TSA.cheers,Star",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.351527
|
||
https://hackaday.com/2010/11/08/cnc-machine-from-pc-parts/
|
CNC Machine From PC Parts
|
Mike Szczys
|
[
"cnc hacks"
] |
[
"floppy drive",
"mill",
"optical drive",
"parts",
"pc",
"pcb",
"plotter",
"stepper"
] |
[Mike Rankin] built
a small CNC machine using some PC parts
. He repurposed two optical drives and a floppy drive to create the plotter seen drawing the Hackaday logo above. The X and Y axes use the stepper motor controlled read heads from two optical drives. The Z axis is built using the read head hardware from a floppy drive. A 3-axis controller module from eBay drives the little machine, keeping the cost quite low at around $45.
As you can see in the video after the break it does a great job as a plotter. [Mike] doesn’t think there’s enough power in the hardware to be used as a mill. We’d still like to try adding a flexible shaft rotary tool and see if this could mill some rudimentary PCBs, but maybe you need to
shell out just a little bit more for that functionality
. It might also be possible to use an etchant resist marker instead of toner transfer or photo-resist.
[youtube=http://www.youtube.com/watch?v=8U-TBf-mzkU]
| 28
| 28
|
[
{
"comment_id": "209501",
"author": "Necromant",
"timestamp": "2010-11-08T19:19:45",
"content": "Awesome… Looks like my next weekend project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209502",
"author": "Necromant",
"timestamp": "2010-11-08T19:22:45",
"content": "Hmm… On the other hand, it looks like I’ll need to drop that controller, that crappy soft and make use of an avr…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209503",
"author": "sp00nix",
"timestamp": "2010-11-08T19:26:29",
"content": "sweet. could use it to plot out PCBs or something.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209506",
"author": "1000100 1000001 1010110 1000101",
"timestamp": "2010-11-08T19:33:16",
"content": "Pretty damn good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209507",
"author": "gmcurrie",
"timestamp": "2010-11-08T19:50:37",
"content": "Neat hack & nice writeup (tho marked down for Hackaday sycophancy towards end…(Jus ribbin ya :) – good work fella!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209509",
"author": "Hirudinea",
"timestamp": "2010-11-08T19:55:04",
"content": "Better than anything I could make using old PC junk.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209511",
"author": "0miker0",
"timestamp": "2010-11-08T19:58:06",
"content": "Thanks for the positive feedback guys. Routing or cutting anything is not really possible with this machine since only a small piece of plastic sits on the metal screw threaded rods for each axis. It was really done to get familiar with how cnc software works with stepper motors without spending any real money. I’m saving up now for a larger pre build hobby cnc machine that has the ability to route pcbs and cut plastic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209512",
"author": "spiderwebby",
"timestamp": "2010-11-08T19:58:31",
"content": "also the mantis design has evolved a lot since then:http://makeyourbot.org/mantis9-1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209515",
"author": "Spork",
"timestamp": "2010-11-08T20:04:53",
"content": "Anyone have more info on the mantis? I can’t seem to find a BOM or instructions for build/electronics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209516",
"author": "Spork",
"timestamp": "2010-11-08T20:07:49",
"content": "*Edit* Ignore that last one, found the BOM they snuck it in since last time I was on the site.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209522",
"author": "dcroy",
"timestamp": "2010-11-08T20:30:24",
"content": "unfortunately circuit prototyping would be limited to a little more than a square inch, and i have doubts on the holding power for milling, using an etch resist marker would be an interesting test for circuit prototyping thoughi am planning to use a matched set of cd rom linear slides for an xy bed for a microscope im building, still looking for parts to cobble together a circuit mill though",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209542",
"author": "spiderwebby",
"timestamp": "2010-11-08T21:21:43",
"content": "@Sporki’m currently working on making a mantis type cnc reprap..thing.. (the lego mendle was too wobbily)i’ll make an effort to upload the drawings when its sorted",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209549",
"author": "Tyler",
"timestamp": "2010-11-08T21:41:23",
"content": "“Hmm… On the other hand, it looks like I’ll need to drop that controller, that crappy soft and make use of an avr…”Why would you use an avr? It’s a cnc machine. The computer does all the processing. The controller is simply driving the motors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209555",
"author": "Whatnot",
"timestamp": "2010-11-08T22:11:26",
"content": "Might be smarter to use a scrap printer, the slide is longer and how older it is the stronger the construction and motors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209854",
"author": "Michael Bradley",
"timestamp": "2010-11-09T08:06:22",
"content": "Could this be used as a laser engraver with a dvd burner laser?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209875",
"author": "anyone",
"timestamp": "2010-11-09T08:31:26",
"content": "@Michael. how much do you value your eyesight?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209899",
"author": "elektrophreak",
"timestamp": "2010-11-09T09:47:31",
"content": "very very good :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210001",
"author": "Al",
"timestamp": "2010-11-09T16:40:41",
"content": "Not sure on the build area, but couldn’t help thinking tiny pick-n-place ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210087",
"author": "zeropointmodule",
"timestamp": "2010-11-09T19:50:38",
"content": "yeah, or micromachining for doing very small metal or plastic components..pick & place would be cool though.i was trying to get a bluray laser to “etch” away the coating on a uv pcb, had some success but ran into issues with fine positioning with the cheap brushed motor mechanism i had..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210216",
"author": "Mantech1",
"timestamp": "2010-11-10T00:51:34",
"content": "Perhaps with some modifications this could be used with EDM (Electrical Discharge Machining)?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210282",
"author": "Chris",
"timestamp": "2010-11-10T04:15:15",
"content": "might not be strong enough to carry a milling head but I be it could carry a little extruder…. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210355",
"author": "CameronSS",
"timestamp": "2010-11-10T10:26:11",
"content": "This looks like a fantastic introductory step to the 16″x14″ CNC mill I’m still hoping to build one of these days. It would make a great desktop toy, too…I’m imagining just leaving a pad of mini-Post-Its on there.Figures that now everyone’s bought out the $35 drivers on eBay, and they’re down to just the $50 ones.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210657",
"author": "Oscar",
"timestamp": "2010-11-11T02:29:48",
"content": "If you want to make a PCB with this thing, why don’t you cut a piece of fiberglass or another similar (non-conductive) material to size, and replace the marker with a circuit repair pen to draw the circuit tracks. You could probably even get it to print from Eagle. Similarly, if you have a laser cutter, you could get an un-etched circuit board, and raster away all of the copper except the tracks you want. Perfect solution.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221022",
"author": "zeropointmodule",
"timestamp": "2010-11-29T21:57:59",
"content": "another method that could work is to spray the board with carbon black based paint and use an HV discharge from a sharpened tungsten welding rod to burn through the paint exposing the copper underneath, then etch as normal.the idea being that the paint vaporises but the air blowing past it not only ensures accurate “burning” but keeps the paint off previously etched copper.combine with the bicarbonate of soda etch and you have a pcb making system that could be installed into a CDROM drive bay.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "221029",
"author": "zeropointmodule",
"timestamp": "2010-11-29T22:08:54",
"content": "additional idea, coat the pcb with a thin layer of uv reactive glue and then use uv laser to selectively polymerise sections while the pcb is sitting on a repurposed domestic iron with salvaged thermal pads from broken plasma screens/etc.might be slightly less hassle than the paint method as uv glue is cheaply purchased as “windscreen repair compound”.plus the glue acts as a solder guard for smd reflow on the cheap without expensive silk screen.another interesting technique for making interconnects is to mix a shrinking glue such as tyre repair compound with silver nanoparticles (made using two silver rods in DI water with a reversing DC bias when the current hits 1mA)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "288371",
"author": "ZF",
"timestamp": "2010-12-22T16:19:25",
"content": "I’m also making a CNC from old electronics. It’s going to be a laser cutter / engraver. If anyone’s interested, go check it out at zerofidelity.blogspot.com !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "458764",
"author": "MooCow",
"timestamp": "2011-09-18T23:30:49",
"content": "I agree that using old printers and scanners would have been a much better idea, you would have got a much larger plotter out of it. Good thinking on going with an old floppy drive for the Y axis though!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2615001",
"author": "Juan",
"timestamp": "2015-06-19T04:06:39",
"content": "Hello, I have built all the hardware: physical structure, and have completed in entering the GRBLtoArduino and all the software. I have used the Universal GCodeSender and has successfully interpreted the software for is says ” Grbl 0.8c [‘$’ for help] “. I’ve soldered the stepper motors (for I’m using steppers from dvd roms) to some salvages wire from a printer I took apart. I installed some female sockets in order to connect to the male pins on the CNC Shield ver. 2.01 . The orange light from the arduino flashes and in the Universal GCodeSender ver. 0.8 completes the operation b/c is says ” ok ” . I have no idea whats wrong. I know the steppers work b/c ive used a 9v battery to pulse the motors and they do indeed pulse. Ive used a multimeter to check its resistance and it works. I’ve checked the current on the motors once connected to the cnc shield and there’s current. I have tested if the drivers are in fact getting power and they are. I’ve attempted the code ” x=100 ” , ” $7=225 ” but no motor movement. Can ANYONE help me ?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.511988
|
||
https://hackaday.com/2010/11/08/win-big-american-design-style/
|
Win Big: American Design Style
|
James Munns
|
[
"contests"
] |
[
"contest",
"design",
"stm",
"STMicroelectronics"
] |
Last week we announced a Germany based design contest only accepting applicants from Europe, the Middle East, and Asia. Unfortunately, this left out one of the larger segments of our readers. After doing some scrounging around (and a helpful tip from [Flash Gordon]), we managed to find a similar contest
run by STMicroelectronics
, the makers of the Discovery board. This contest sounds familiar, with free Discovery Board for all approved applicants, and
prizes
for the most interesting and creative projects.
Right now the official rules page seems to be missing, so you technically legally should probably wait to enter, but we can’t stop you.
It looks like the official rules page is
located here
. Thanks to [Andee] for pointing that out. Also, it looks like if you live in Puerto Rico or Quebec, you are also out of this contest as well.
If you are from the EMEA area and missed the
last contest
, be sure to go back and check it out for your chance to win! Also, we love covering contests (especially ones that give out free kits to all contestants), are there any readers out there that know of a developer other than STM that is offering this kind of deal? We would love to
hear from you
!
| 20
| 20
|
[
{
"comment_id": "209466",
"author": "Andee",
"timestamp": "2010-11-08T17:30:12",
"content": "Rules:http://stm32challenge.net/official-rules",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209486",
"author": "TheBadWolf",
"timestamp": "2010-11-08T18:30:06",
"content": "Well their site is filled with bugs.I just registered and found out they didn’t had Quebec as a valid state of Canada,oh yeah but they do have northwest AND territories counting for 2.lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209488",
"author": "Troll_Dragon",
"timestamp": "2010-11-08T18:35:07",
"content": "In…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209490",
"author": "Troll_Dragon",
"timestamp": "2010-11-08T18:35:59",
"content": "@TheBadWolfNot allowed in Quebec…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209494",
"author": "silverbyte",
"timestamp": "2010-11-08T18:54:09",
"content": "WHY THE FUCK IS QUEBEC EXLUDED GOD DAMNIT !!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209500",
"author": "Alex",
"timestamp": "2010-11-08T19:15:36",
"content": "So… I was initially excited about this contest, but now I most certainly won’t be participating.From the rules:“BY ENTERING THE CONTEST, EACH OF THE CONTESTANTS HEREBY GRANT TO STMICROELECTRONICS AND ITS AFFILIATES A NON EXCLUSIVE, PERPETUAL, ROYALTY-FREE, FULLY-PAID UP, IRREVOCABLE, SUBLICENSABLE (THROUGH MULTIPLE TIERS), ASSIGNABLE, WORLDWIDE RIGHT AND LICENSE IN AND TO HIS OR HER CONTEST MATERIALS, INCLUDING BUT NOT LIMITED TO ALL INVENTIONS DESCRIBED THEREIN, ALL WORKS OF AUTHORSHIP CONTAINED THEREIN, AND ALL INTELLECTUAL PROPERTY RIGHTS RELATING THERETO,” and it goes on, but you get the idea.This rule is simply insulting. A good idea with a polished implementation is worth way more than the possibility of a few measly grand. Stealing people’s ideas may result in a net win for ST, but this sort of tactic is underhanded and harmful to their supporting developer community.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209504",
"author": "eric",
"timestamp": "2010-11-08T19:28:08",
"content": "I signed up for this half an hour ago and received a confirmation email. I think they might be having server problems because now I can’t log in at all.However, now that I have seen Alex’s post, I will reconsider my participation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209508",
"author": "Troll_Dragon",
"timestamp": "2010-11-08T19:51:43",
"content": "No one says your “Design” has to come to fruition, just pass the first block for the free board…They will learn the reality of their scummy idea stealing ways down the road. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209540",
"author": "Charper",
"timestamp": "2010-11-08T21:17:04",
"content": "@AlexGlad you actually read the rules. :) Unfortunately, every design contest from the big manufacturers includes something like that. If it makes you feel better, the license (as in this case) is usually non-exclusive. This means that you can make it and sell it too.Bottom line (and really, this should be common sense): If you have a really great world-changing make-you-a-billionaire idea, don’t enter it in some dinky contest. If it’s just a mediocre idea, you’re fine. ST won’t find it worthwhile to compete with you, and they won’t be able to sell your idea because it’s worthless unless it’s exclusive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209544",
"author": "uC",
"timestamp": "2010-11-08T21:26:19",
"content": "Quebec has very different rules than the rest of Canada. Including a few doozies that make it not worth non Quebec companies time to jump through the loops.A sample from (http://www.mcmillan.ca/Files/FortuitousEvents_0610.pdf)If Quebec residents are eligible for a contest where the total value of theprizes awarded exceeds $2,000, then the contest promoter must receiveauthorization from the Régie in order to carry-out the contest and complywith a wide range of requirements, including the requirement to providecontest rules and regulations, as well as promotional materials pertaining tothe contest in French.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209545",
"author": "Quin",
"timestamp": "2010-11-08T21:27:10",
"content": "@Alex“We funded these developers, they wouldn’t have created this stuff if we hadn’t waved a few hundred dollars under their noses. Never mind that we gave most of them less than $10 in parts, they owe us something.”That bit of legalese you quoted is pretty much a boilerplate. Someone said “Oh, we need to make sure who ever wins, we can use their product if we like it. That is what we are investing in with this contest.” and some lawyer pulled that clause out of a book. Chances are you have agreed to something similar multiple times today, when clicking a submit button.Still sucks. Maybe HAD can generate enough uproar to get them to change that part of the contest.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209580",
"author": "Krunal",
"timestamp": "2010-11-08T22:50:39",
"content": "@AlexThanks for pointing that out!Is anyone else having trouble with the buginess of their site? It is convinced that my business address is my mailing address, even though I *keep* unchecking that box…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209704",
"author": "Azdle",
"timestamp": "2010-11-09T02:17:55",
"content": "Oh sure, right after I buy two of these they start giving them away. Oh well, for less than $20 I guess I can’t really complain.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209809",
"author": "nave.notnilc",
"timestamp": "2010-11-09T05:19:43",
"content": "on this page:http://stm32challenge.net/resourcesit seems to suggest that the board they’ll be giving away for this has a phenomenally more powerful MCU (than the regular discovery) with USB slave and 1Mbit of flash and DMA and lots of neat features; if this is true, I am certainly entering the contest.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209814",
"author": "tayken",
"timestamp": "2010-11-09T05:28:14",
"content": "By the way, the last contest was for Europe, Middle East and Africa area, not Asia.Hopefully there will be a contest for Asia too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210385",
"author": "n8thegr8",
"timestamp": "2010-11-10T13:24:38",
"content": "GOD DAMMIT! I just tried to update my information and it completely deleted my design abstract and block diagram, and changed my state to Alabama…hopefully they get this fixed, this site sucks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211429",
"author": "wouter",
"timestamp": "2010-11-12T15:23:37",
"content": "just recieved mine..let the fun start xDbut no usb cable?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214523",
"author": "ixi",
"timestamp": "2010-11-18T18:57:46",
"content": "So what is the development board thet give away like? Is it the same as STM32-discovery or not? I suppose not as the discovery has 128KB of flash.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214606",
"author": "ixi",
"timestamp": "2010-11-18T19:40:32",
"content": "I already find out it is SMT32F103RG, very beefy. Hovevery US and Canada only. No EMEA :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214721",
"author": "Nathan",
"timestamp": "2010-11-18T22:40:50",
"content": "I submitted a design on Sunday and haven’t seen it in the “View Entries” section, but I can view it from the “View my design” link. The only contact I’ve received was the auto-generated message that told me to submit a design (sent after registration). I tried posting a question in the STM32 site’s forum, but the forum is broken and can’t accept any actual posts. I also tried sending an “e-mail” via STM’s “Contact Us” page, but haven’t received a reply and am suspecting that that might be broken too. I can’t find any other contact info for the contest. Anybody else have any clues or hints to help me out?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.446532
|
||
https://hackaday.com/2010/11/08/make-a-knitting-machine-print-pixel-art/
|
Make A Knitting Machine Print Pixel Art
|
Mike Szczys
|
[
"home hacks"
] |
[
"art",
"floppy",
"ftdi",
"knitting machine",
"pixel",
"tandy"
] |
[Becky Stern] shows how to take an old
electronic knitting machine and interface it with a computer
. After seeing the Brother KH-930E knitting machine in the video after the break it looks like the controls function quite like a CNC milling machine. Patterns can be programmed in and stored on a floppy disk. Since we don’t want to use those anymore (unless they’re
hacked as an SD card carriage
) it is nice to see that this is how the machine is connected to a computer. Using an altered FTDI cable and a floppy-drive emulator written in Python a blank design file can be saved on the knitting machine, manipulated in the computer to add your own pixel art, then loaded back onto the machine for production. At the very least, it’s interesting to watch the knitting happen, but fans of knitted apparel and geek paraphernalia must be salivating by now.
We’ve never given up our dream to
transition from Hack-A-Day to Craft-A-Day
, this just fuels the fire for that cause.
[youtube=http://www.youtube.com/watch?v=GhnTSWMMtdU]
| 16
| 16
|
[
{
"comment_id": "209477",
"author": "redbeard",
"timestamp": "2010-11-08T18:15:57",
"content": "Also, for the crib notes, check out Limor & I’s github accounts where we put together some of the code for this:https://github.com/brianredbeard/knitting_machinehttps://github.com/adafruit/knitting_machineand of course, Becky’s website:http://www.sternlab.org",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209489",
"author": "Zagro",
"timestamp": "2010-11-08T18:35:26",
"content": "Whats so odd is i was looking at mechanized sock knitters on youtube earlier and then this shows up in hackaday …Back to youtube i go…Note (the sock knitter shows up in recommended i didn’t search for it but it was interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209505",
"author": "Bjonnh",
"timestamp": "2010-11-08T19:28:42",
"content": "5261 mails well done…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209510",
"author": "Hirudinea",
"timestamp": "2010-11-08T19:57:52",
"content": "I love a woman who can knit AND hack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209562",
"author": "Jan",
"timestamp": "2010-11-08T22:24:50",
"content": "That’s a cool hack",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209599",
"author": "tehox",
"timestamp": "2010-11-09T00:02:22",
"content": "This chick looks like a younger bill gates. yeesh",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209669",
"author": "Matt",
"timestamp": "2010-11-09T01:05:37",
"content": "So, the only thing keeping me from trying this out is that I know nothing to do with knits, and these machines are still expensive / above the impulse buy price.Very cool, wish I could justify getting one to try this with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209818",
"author": "12o",
"timestamp": "2010-11-09T05:41:03",
"content": "Hey HackADay admins!!This hack deserves a start of its own category. “Knitting hacks”. That’s awesome enough to earn a start to its own category.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209819",
"author": "yuppicide",
"timestamp": "2010-11-09T05:50:04",
"content": "That’s a woman? Looks like Bill Gates.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209917",
"author": "Grovenstien",
"timestamp": "2010-11-09T11:35:00",
"content": "Mmmmm Self referential Knitwear, I hope that the wool is not to itchy for my sensitive pasty white skin!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209919",
"author": "Grovenstien",
"timestamp": "2010-11-09T11:39:25",
"content": "@yuppicide perhaps bill gates looks more like a woman?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210728",
"author": "Addidis",
"timestamp": "2010-11-11T05:29:47",
"content": "computer aided knitting, I actually find my self wanting one of these. I don’t know a thing about knitting but I know my fair share about computers. I also think being able to make stylish winter caps is a decent idea. A computer aided knitting machine would mean I could make cool stuff and still not know how to knitt. I call that a win.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210969",
"author": "Pilotgeek",
"timestamp": "2010-11-11T20:15:34",
"content": "@yuppicide: A very sexy Bill Gates.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211900",
"author": "anon",
"timestamp": "2010-11-13T15:29:20",
"content": "Someone really needs some hair styling! And contact lenses.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "341042",
"author": "Carrie",
"timestamp": "2011-02-24T21:32:15",
"content": "The article isn’t about her looks, it’s about her superior hacking skillz. F u guys, get a life.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "570329",
"author": "gorddev",
"timestamp": "2012-01-30T02:31:43",
"content": "super super cool hack",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.560162
|
||
https://hackaday.com/2010/11/07/project-enclosures-the-right-way/
|
Project Enclosures The Right Way
|
Mike Szczys
|
[
"cnc hacks"
] |
[
"box",
"case",
"enclosure",
"mill",
"project",
"sparkfun"
] |
[Stephen Eaton] created an enclosure and shared his process in
a pair
of
blog post
. We thought is was amusing that he remarks on how rarely his projects get the to point that you’d want to make an enclosure for them. We’ve certainly got a lot of bare-PCB creations lying around. But when it does come time, we think his fabrication method is a good way to go.
First of all, he didn’t start from scratch. He already had a SparkFun project case sitting around. The problem is figuring how to make it work for your situation. We’ve used a drill, a Dremel, and a file in the past and that yields passable results but nothing that would be mistaken for anything other than a carefully mangled project box. [Stephen] decided to mill the openings he needed from the box, which yielded professional looking results. He started by emailing SparkFun and asking if they could give him a 3D model of the project box and the obliged. He then modeled the LCD screen, LED light pipes, button, USB port, and SD socket. From there it was off to the mill with a custom jig and a few tricks we think you’ll appreciate. The end result is just another reason to build the CNC mill you’ve had on your mind for so long.
| 11
| 11
|
[
{
"comment_id": "209159",
"author": "Avaviel",
"timestamp": "2010-11-07T22:53:40",
"content": "[corrections]Change“project box and the obliged.”add [y] to end of [the].“project box and the obliged.”(For some reason, it cleared the text of my previous post. Whoops.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209166",
"author": "Scott",
"timestamp": "2010-11-07T23:32:18",
"content": "Nice. I’m going to have to learn to use Alibre one of these days.Wish he showed how he was holding down the enclosures for milling – I always find that to be a pain.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209208",
"author": "bgxa",
"timestamp": "2010-11-08T01:13:49",
"content": "what are the benefits to using a 9V battery?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209264",
"author": "eric",
"timestamp": "2010-11-08T05:38:43",
"content": "Only thing it’s missing now is a graphic overlay, like something these guys make:http://www.nameplatesforindustry.com/Pages/faceplates.htm.Usually shops like this don’t do low quantities (or if they do, it’s expensive), but there has to be some way to reproduce it using transparencies and a color printer, and maybe some sandpaper for the textured “velvet” finish. The professional shops usually print on the reverse side of the label so that the plastic itself protects the printing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209281",
"author": "Stephen Eaton",
"timestamp": "2010-11-08T07:02:49",
"content": "I haven’t yet posted any pics/vids of the machining of the sparkfun boxes, but the end was held down with x2 self-taper screws that stopped it from coming out of the fixture, as far as the front of the SF project box, well for my test I held it with my hands as it we nice and snug in the fixture and the feed and cuts were pretty small. I’ll be posting some more pics shortly showing the hold-downs.I’m using a 9V as my design requires dual supply, 3.3v for logic/display and 9V for RFID, so it was easier than adding a Boost power supply.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209282",
"author": "Stephen Eaton",
"timestamp": "2010-11-08T07:06:36",
"content": "@ericI have been playing around with a graphic overlay using Overhead projection transparencies with inkjet and laser printer and a vinyl cutter, this all stuck together with some double-sided craft-ish stuff (can’t remember the name) but comes in A4 sheets and is transparent, double sided on both sides, and very thin. I thinks it’s used in scrap booking a lot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209293",
"author": "█",
"timestamp": "2010-11-08T08:19:37",
"content": "I’m not swiping my cards in that thing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209301",
"author": "Marvin",
"timestamp": "2010-11-08T08:50:17",
"content": "I didn’t find these for the US right now, but in germany we can get this:http://www.elv.de/F%C3%BCr-HP-Drucker,-Basisfolie-silber/x.aspx/cid_74/detail_10/detail2_6067It’s basically a transparency film with matte finish and a thin doublesided adhesive foil.The film is printed on like normal inkjet film, but mirrored on the backside…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209304",
"author": "Sean",
"timestamp": "2010-11-08T09:19:42",
"content": "Interesting read, but seems like this post was a bit rushed – the grammar is terrible!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209331",
"author": "Erik Johansson",
"timestamp": "2010-11-08T10:11:07",
"content": "@Scott: He holds it steady, repeatedly, with hisspecially milled foam fixture. Pretty cool way to hold down the material to be milled.. :-)I wish I had a CNC available for me to use when I wanted to .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209536",
"author": "Jim",
"timestamp": "2010-11-08T21:10:39",
"content": "For graphic overlays the best method is find a local vinyl printer, like the guys that do car wraps. They can easily do a one off and it is super cheap.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.655616
|
||
https://hackaday.com/2010/11/07/im-me-plays-music-in-preparation-for-gaming/
|
IM-ME Plays Music In Preparation For Gaming
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"frequency",
"game",
"im-me",
"music",
"piezo",
"tetris"
] |
[Emmanuel Roussel] is coding a version of
Tetris for the IM-ME
. Before you get too excited, he hasn’t actually written the game yet, but instead started with the familiar theme music. The IM-ME has a piezo speak on board so it’s just a question of frequency and duration. [Emmanuel] developed an Open Office spread sheet that calculates each note’s frequency and the timer value needed to produce it. He then created a data type that stores a note and its duration and used an array of those structures to store the song. If you’ve ever wondered how to cleanly code music this is a wonderful example to learn from because right now the code doesn’t have anything other than that code to get in the way.
The ground work for this
was established in the other hacks we’ve seen. Now we’re left wondering who will finish coding their game first. Will it be [Emmanuel’s] Tetris or
[Travis’] Zombie Gotcha
?
| 6
| 6
|
[
{
"comment_id": "209127",
"author": "Mr_Bishop",
"timestamp": "2010-11-07T21:36:12",
"content": "ok this is slightly off topic, but I saw a post having to due with using one of these to monitor a spectrum, my question, is there any way to record(packet sniff?) analog and digital waves on the 2.4GHz wavelength, not just wifi but all forms?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209142",
"author": "YaBa",
"timestamp": "2010-11-07T22:00:19",
"content": "As soon as I can buy one of this in Europe, my first hack would have nothing to do with programming or electronics. But change the damn color :D :D lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209168",
"author": "MS3FGX",
"timestamp": "2010-11-07T23:35:48",
"content": "@Mr_BishopThe IM-ME doesn’t use WiFi or 2.4GHz, it is a 900MHz device. The chip can be switched into lower frequencies, but you won’t be able to use an IM-ME to do any work in the gigahertz range.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209170",
"author": "Rousselmanu",
"timestamp": "2010-11-07T23:48:56",
"content": "@YaBaI’m in France and I bought mine on ebay for 21euros…ok that was a bit expensive, but this is a must-have device :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209456",
"author": "donov4n",
"timestamp": "2010-11-08T16:30:36",
"content": "I just hate IM-ME!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212373",
"author": "Rousselmanu",
"timestamp": "2010-11-14T17:14:12",
"content": "Tetris for the IM-Me is finished!!Details+sources:http://rousselmanu.free.fr/?p=206&lang=en",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.609555
|
||
https://hackaday.com/2010/11/04/kilobuck-open-kinect-project-prize/
|
Kilobuck Open Kinect Project Prize
|
Devlin Thyne
|
[
"contests",
"News",
"Xbox Hacks"
] |
[
"adafruit",
"Kinect",
"Open Kinect",
"open source",
"prize",
"xbox"
] |
Full of video and audio sensors, the newly released
Kinect
is Microsoft’s answer to Nintendo’s Wii MotionPlus and Sony’s PlayStation Move. Now there is money up for grabs to hack it. Adafruit is offering up a
one thousand dollar prize
to open source the driver for the Kinect. What do they want this driver to do? They want RGB and distance values. We’re excited to see the hacks that will come around because of this product, and now that prize money is involved, everything has been turned up a notch.
Update:
The bounty has been raised to $2000 after a Microsoft response to
CNET
:
But Microsoft isn’t taking kindly to the bounty offer. “Microsoft does not condone the modification of its products,” a company spokesperson told CNET. “With Kinect, Microsoft built in numerous hardware and software safeguards designed to reduce the chances of product tampering. Microsoft will continue to make advances in these types of safeguards and work closely with law enforcement and product safety groups to keep Kinect tamper-resistant.”
Update:
Progress toward a driver
Update:
Winner of the Open Source Kinect contest
| 83
| 50
|
[
{
"comment_id": "207795",
"author": "biozz",
"timestamp": "2010-11-04T22:18:21",
"content": "i got to play with one and its not all its hyped up to bei prefer the playstation move XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207799",
"author": "Patrick",
"timestamp": "2010-11-04T22:48:54",
"content": "If I can’t play Halo or COD on it, whats the point? It’ll just be another wasted peripheral like the zapgun for NES.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207801",
"author": "NatureTM",
"timestamp": "2010-11-04T22:55:38",
"content": "It would be pretty amazing to have such a powerful and inexpensive device at our disposal. It’s just that $1000 may be nothing compared to the effort it could take. The Kinect uses about 10% of the XBox’s processing power. I’m guessing MS optimized the crap out of that 10%. If that’s all gesture recognition, then probably no big deal, but if the XBox handles the ranging, I don’t know…I remember reading MS had all kinds of trouble developing this. Also, I’m sure they want to use the technology in other applications. I don’t know how hard it would be to recreate all that development, and I bet MS has taken steps to thwart our attempts.Very nice of Adafruit though. I do think it will happen. It always does, but sometimes it takes a really long time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207808",
"author": "Erwin Ried",
"timestamp": "2010-11-04T23:07:49",
"content": "Supposedly, in a few months MS should release interfaces to use Kinect with XNA Studio. Can you imagine how cheap would be a gesture/voice operated station? :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207809",
"author": "Hackius",
"timestamp": "2010-11-04T23:09:45",
"content": "I’d much rather prefer to have the person recognition systems in place too. Perhaps microsoft can offer a PC SDK with those amazing algorithms in place?Shouldn’t there at least be a compatible open driver for the kinect? It’s based on a generic primasense device.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207812",
"author": "Whatnot",
"timestamp": "2010-11-04T23:15:26",
"content": "I’m sure MS stole it from an open source project, and will sue if you now imitate it.I’m not even merely being snide.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207813",
"author": "Jp Encausse",
"timestamp": "2010-11-04T23:18:30",
"content": "Hey !What about the Microphone Array driver too ? Kinect is also a great voice recognition device (like acoustic magic).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207814",
"author": "Squirrel",
"timestamp": "2010-11-04T23:19:10",
"content": "@NatureTMIf you read the description on the adafruit website, it says “the Kinect sensor outputs video at a frame rate of 30 Hz, with the RGB video stream at 32-bit color VGA resolution (640×480 pixels), and the monochrome video stream used for depth sensing at 16-bit QVGA resolution (320×240 pixels with 65,536 levels of sensitivity)”So this information should be relatively easy to extractBut you never know…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207830",
"author": "pt",
"timestamp": "2010-11-05T00:03:45",
"content": "in response to microsoft’s comment, the bounty has doubled to $2k==========But Microsoft isn’t taking kindly to the bounty offer. “Microsoft does not condone the modification of its products,” a company spokesperson told CNET. “With Kinect, Microsoft built in numerous hardware and software safeguards designed to reduce the chances of product tampering. Microsoft will continue to make advances in these types of safeguards and work closely with law enforcement and product safety groups to keep Kinect tamper-resistant.”Read more:http://news.cnet.com/8301-13772_3-20021836-52.html#ixzz14MT9Zz00",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207831",
"author": "n0p",
"timestamp": "2010-11-05T00:06:02",
"content": "I love this, they upped the bounty to $2k because M$ bragged abut the security in the device and their lawyers xDUpdate: We’ve increased it to $2,000 – why? We just read this at CNET…But Microsoft isn’t taking kindly to the bounty offer. Bounty offered for open-source Kinect driver – “Microsoft does not condone the modification of its products,” a company spokesperson told CNET. “With Kinect, Microsoft built in numerous hardware and software safeguards designed to reduce the chances of product tampering. Microsoft will continue to make advances in these types of safeguards and work closely with law enforcement and product safety groups to keep Kinect tamper-resistant.”Don’t make us up’ it to $3k",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207834",
"author": "PhilKll",
"timestamp": "2010-11-05T00:17:20",
"content": "Seems silly they would be worried about people using it on things other than the Xbox. I could see worrying about someone modifying the xbox/camera with a virus or something of that nature, so that its basically broadcasting a camera feed to the internet. But this is just giving people a reason to buy a microsoft product, who otherwise might not. I don’t own an xbox, but this gives me a reason to buy an xbox product. Sounds like a good deal for both sides.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207835",
"author": "Jack Sprat",
"timestamp": "2010-11-05T00:28:25",
"content": "Why would they want to stop people from hacking the Kinect? I wonder how many extra Wiimotes were sold because people were hacking them. Hell if someone hacks the Kinect and gets facial recognition and audio working, we’re talking HAL. Put a couple around the house and you’ve got a system that will do whatever you program it for.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207836",
"author": "Andrew",
"timestamp": "2010-11-05T00:36:34",
"content": "When I heard this uses time of flight, my immediate reaction was that all of the underlying technology is heavily patented. That’s the reason why a SICK sensor still costs $5k. My theory is that primesense’s licensing requirements are very strict to keep this product out of the research/robotics domain. Thus, I wouldn’t be surprised to see a fully encrypted path between the kinect and the xbox. If true, this is very bad news for hacking. Due to the absence of any processor, the encryption would have to be built into the primesense IC which would make sniffing for keys really challenging.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207837",
"author": "IceBrain",
"timestamp": "2010-11-05T00:36:39",
"content": "The Kinect could be sold at a loss to drive up game sales, in which case buying it without the intention of buying XBox games would be bad for them.And if you can learn how to extract data, you also learn how to insert data. Kinect cheat engine in the future?But I think this is probably just the standard knee-jerk reaction large companies have when someone messes with their formats/protocols.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207838",
"author": "Chris",
"timestamp": "2010-11-05T00:37:31",
"content": "I can understand Microsoft wanting to protect its intellectual property as far as the software running on the Xbox that is able to do skeletal tracking from RGB and depth info, that’s fair in my book.But even a dumb sensor that only returns a raw depth map is a huge advance to robotics.Considering Microsoft bought out the only two companies that developed affordable gated time-of-flight depth sensing cameras, them taking measures to prevent people from purchasing and using that hardware for their own purposes is just bloody mean.Kudos to Adafruit for offering the bounty. I hope this gets cracked wide open.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207840",
"author": "PhilKll",
"timestamp": "2010-11-05T00:49:22",
"content": "@Ice Brain“The Kinect could be sold at a loss to drive up game sales, in which case buying it without the intention of buying XBox games would be bad for them.”Ah yes, I totally forgot about this style of economics.As far as their intellectual property, wouldn’t this be more of creating something new? Unless the people extract the software out of the xbox and copy paste it into their driver. It would seem to me all this is doing is creating a new interface to an existing product’s data stream. Like hooking up a vcr to your cable tv line instead of a cable box or something like that, not sure, am not a lawyer, just seems like this shouldn’t be that big of an issue, if nothing is extracted out of the xbox.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207841",
"author": "M4CGYV3R",
"timestamp": "2010-11-05T00:52:06",
"content": "Does anyone know of a good site with driver programming tutorials?I have no idea how they’re supposed to work or interface with their respective operating systems, but I’m a code wizard and I want to sniff me some USB.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207842",
"author": "PhilKll",
"timestamp": "2010-11-05T01:00:47",
"content": "http://oreilly.com/catalog/linuxdrive3/chapter/I found this sample chapter fairly informative in regards to USB drivers. Along with libUSB taking care of all the down and dirty stuff.Jan Axelson’s sitehttp://www.lvr.com/has a ton of good info too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207843",
"author": "Chris Sutcliff",
"timestamp": "2010-11-05T01:01:07",
"content": "@M4CGYV3RTry looking here:http://www.codeproject.com/KB/system/#Device+DriversThey have some good tutorials and other related articles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207845",
"author": "Roberto",
"timestamp": "2010-11-05T01:28:14",
"content": "Instead, there should be a bounty to clone the Kinect with OpenCV and a pair of stereo cameras.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207849",
"author": "PhilKll",
"timestamp": "2010-11-05T01:43:52",
"content": "Probably be easier to build your own. I’ve never worked on an xbox before, no idea if you can run programs on it, otherwise wouldn’t this require a hardware USB sniffer? Those are pretty expensive from what I’ve seen. Not sure if you could build some pieces of equipment, a device and a host, to trick the kentic and xbox into giving up enough information to get the ball rolling on reversing the data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207850",
"author": "Terry Likeman",
"timestamp": "2010-11-05T01:44:42",
"content": "Well, if $1000 wasn’t enough, apparantly it’s been upped to $2000. Now THAT should be enough for some real action to get started on this thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207851",
"author": "blue carbuncle",
"timestamp": "2010-11-05T01:55:26",
"content": "@whatnot You may remember the DARPA sponsored autonomous land navigation challenge a couplathree years ago. MS got the guys that placed 2nd and they developed the Natal/Kinect. Like Han says, “She’s got it where it counts kid.” It will be a nice piece of interface gear (minus the size I guess but ya mount it). Like others say, I’m excited but feel $1000 is too low a bounty unless they just want to get the first scoop on the hack which is what this reads more like. I shake my fists at the bloated God gizmodo and her phallic tentacles. User mileage may vary.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207854",
"author": "jasoman",
"timestamp": "2010-11-05T01:59:44",
"content": "here is the teardown.http://www.ifixit.com/Teardown/Microsoft-Kinect-Teardown/4066/3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207857",
"author": "Whatnot",
"timestamp": "2010-11-05T02:11:00",
"content": "@blue carbuncle That might identify the people working on it but not necessarily where those got ‘inspiration’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207869",
"author": "Tyler",
"timestamp": "2010-11-05T02:28:26",
"content": "“The Kinect could be sold at a loss to drive up game sales, in which case buying it without the intention of buying XBox games would be bad for them.”This is exactly what MS did with the orignal Xbox. They sold the hardware at a loss, expected to make up for it in games and xbox live. So they went extreme lengths to secure it. They had a dummy bios on the mobo, and actually hid the bios inside the custom nvidia gpu. Since it was basically a legacy free PC, it meant people could buy it, hack it, install linux on it, and have a cheap ass pc.Haha… I read “Hacking the Xbox” back in the day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207877",
"author": "fluidic",
"timestamp": "2010-11-05T02:51:59",
"content": "I’m all for hacking Kinect for the sake of hacking Kinect.But I’ve seen the “sub-$100” RGB-D cameras. They work fine. There are a number of recent papers using them.I don’t think you can buy them off the shelf just yet, so you might be able to save about a month if you hack Kinect really fast.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207896",
"author": "NFN_NLN",
"timestamp": "2010-11-05T03:06:18",
"content": "Why would they want to stop people from hacking the Kinect? I wonder how many extra Wiimotes were sold because people were hacking them. Hell if someone hacks the Kinect and gets facial recognition and audio working, we’re talking HAL. Put a couple around the house and you’ve got a system that will do whatever you program it for.—————————-1. Hacking works the other way too. Instead of increasing sales this reverse engineering could be used to make Kinect clones.2. Perhaps the R&D and cost means they’re relying on game to break even, something PC users wouldn’t be buying.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207897",
"author": "andrew",
"timestamp": "2010-11-05T03:07:23",
"content": "Lately, MS has been saying that the kinect uses less than 10% of the xbox’s CPU power. If that’s true, do you really think it’s simply sending RGB distance values to the xbox? I bet it’s doing much more on-board processing, like real-time skeletal modeling to produce x, y, and z values (or difference vectors) for specific joints.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207913",
"author": "fluidic",
"timestamp": "2010-11-05T03:22:44",
"content": "@NFNI don’t think MS did the hardware, or at least I think they ported someone else’s reference design and used someone else’s RGB-D CCD. Going from there to a commercially viable product is a lot of work, especially since a lot of the magic is in the software that goes with it. But much of the “R” cost was elsewhere, while MS picked up the “D” portion related to what they wanted to use it for.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207926",
"author": "adam",
"timestamp": "2010-11-05T04:30:04",
"content": "What does microsoft think Visual Studio does. it allows people to use their windows computers for something they were not designed to do. I guess if you are willing to pay $700-1000 for their software then its ok. When will these companies realize that if they make the code and hardware open then many more people will buy their products and probably buy multiples of them. I can’t even begin to guess how many PS3’s were bought just because they could run linux and how mad they were when they suddenly stopped working",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207941",
"author": "Jonathan Wilson",
"timestamp": "2010-11-05T05:16:42",
"content": "From looking at the iFixit teardown its obvious that there is some kind of CPU or MCU in thereAs for why MS doesnt want hacking, I am inclined to believe the “sell at a loss to make up money on games” and the “sell far below what similar systems would cost as long as its only used for games”As for reverse engineering, as long as its not using encryption and as long as no (C) MS/(C) PrimeSense code is used, it should be legally clean.Even if its using encryption, IIRC there are legal precedents (I cant find any right now though) where cracking encryption for interoperability like this is not a DMCA violation",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207947",
"author": "pRoFlT",
"timestamp": "2010-11-05T06:25:25",
"content": "I love how M$ talks about encryption and cant hack it, blah blah blah. Thats like the worst thing they could say.Rule #1 Never tell a hacker they cant do something, unless you want them to do it.If i had a XBOX i would start looking into it. Just for spite!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207952",
"author": "AnonymousCoward",
"timestamp": "2010-11-05T06:51:02",
"content": "Isn’t the Kinect just a high-speed low-resolution camera? The console handles the processing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207974",
"author": "strider_mt2k",
"timestamp": "2010-11-05T08:19:33",
"content": "Regarding any company trying to make juicy devices “tamper resistant” or “hack proof”:Best of frakkin’ luck!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207975",
"author": "strider_mt2k",
"timestamp": "2010-11-05T08:21:25",
"content": "The original Xbox doesn’t even really wake up and rock until it’s properly hacked!Duh!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207981",
"author": "JGJ",
"timestamp": "2010-11-05T08:29:41",
"content": "The Kinect might not be using time of flight after all:http://www.pcmag.com/article2/0,2817,2365136,00.asp“[…]Competing technologies use what’s known as “time of flight”, which projects out light and then measures the time it takes to get back to the sensor.[…]”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208024",
"author": "Necromant",
"timestamp": "2010-11-05T09:42:59",
"content": "> Hacking works the other way too. Instead of increasing sales this reverse engineering could be used to make Kinect clones.And I’m already wating for the moment to order a cheap kinect clone from dealextreme =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208051",
"author": "JimZ",
"timestamp": "2010-11-05T11:13:33",
"content": "A interesting look at the Kinect through a pair of IR goggleshttp://www.youtube.com/watch?v=r7nRKU0nFxA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208052",
"author": "Pup",
"timestamp": "2010-11-05T11:22:15",
"content": "Surely they were expecting it to be hacked, even if it uses encryption.Although there’s no mention of I/O channel encryption circumvention exceptions in the Wikipedia DMCA article…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208057",
"author": "IceBrain",
"timestamp": "2010-11-05T11:39:31",
"content": "@adam: That’s exactly the point: until recently, every PS3 was a *loss* to Sony – they only made money through games. If you bought one to use as a Linux box, they’re were losing money.And while using developing a Kinect driver for the PC is probably legal, a clone won’t be – they’ll infringe on a number of patents, either Microsoft’s or from the companies which produce it for them.And no Chinese mock up company has the money to invest in the R&D required to clone each of those components. How many cheap Wii Remote clones that work with the Wii are there?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208060",
"author": "frankenspank",
"timestamp": "2010-11-05T11:45:32",
"content": "@adamOr get one of the express editions of Visual Studio, for FREE.Could it be the real reason why MS doesn’t want us hacking the device is that they’re selling them at a loss right now?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208075",
"author": "Gert",
"timestamp": "2010-11-05T13:04:18",
"content": "The Kinect tech has much more potential than games.Facial recognition.If they increase resolution this could be used for security.These days it’s almost impossible to see what’s going on on every camera. Kinect could recognize violent behaviour and warn a security guard to take a look.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208080",
"author": "Reggie",
"timestamp": "2010-11-05T13:17:03",
"content": "or maybe they don’t want it hacked because they’re planning on a PC based system that isn’t entirely based around gaming?Whilst this looks good for gaming, it looks like it could be levaraged for some really nice minority report style interactive display technology.I wonder if it would need anywhere near the pre-360 processing power if it were hooked up to a quad core cpu via usb3?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208100",
"author": "Revlchurch",
"timestamp": "2010-11-05T14:25:13",
"content": "I am thinking M$ is wanting to use this device for passive monitoring of the fools that connect this thing up. Oh don’t hack it or you may find that code that sends your life to our Big Brother Network. Yeah I know conspiracy nut. BUT it does look like a fun project just to thumb a nose at Billy with.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208111",
"author": "nes",
"timestamp": "2010-11-05T15:09:44",
"content": "I don’t think the $2000 is going to be taken anytime soon. I would be surprised if at least some of the Primesense IP was not running on the XBox’s processor, so I would expect the comms channel from the cameras to be well encrypted, and even then it might not contain readily intelligible data.Perhaps the extra microphones are for doing beam forming for locating the voice in the room. I don’t recall the Primesense eval kit doing that and that IP certainly is in the public domain. Even so, this would make an expensive USB microphone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208114",
"author": "Adam",
"timestamp": "2010-11-05T15:14:49",
"content": "“How many cheap Wii Remote clones that work with the Wii are there?”Lots…Pretty bad example :(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208144",
"author": "cantido",
"timestamp": "2010-11-05T17:07:06",
"content": "/me guesses that Marvell SoC has something to do with how it works… Kirkwood perhaps?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208167",
"author": "Jack Buffington",
"timestamp": "2010-11-05T18:22:39",
"content": "Microsoft bought 3DV Systems a while back. They were the ones who developed the camera technology. If anyone has drivers for the camera that they were going to release as a webcam, they are probably pretty close to what is used in the Kinect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208183",
"author": "Hackius",
"timestamp": "2010-11-05T19:24:48",
"content": "Microsft has said time and time again they bought 3dv just for the patents and that the tech they use is different.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.983554
|
||
https://hackaday.com/2010/11/04/apple-studio-display-connector-ports/
|
Apple Studio Display Connector Ports
|
Mike Szczys
|
[
"Mac Hacks"
] |
[
"apple",
"dvi",
"lcd",
"monitor",
"power",
"studio display",
"usb"
] |
[Warrior_Rocker] pulled off his own
Apple Studio Display hack by removing the cable and adding ports
. As we saw in
Wednesday’s post
, these displays use a cable with a proprietary connector that combines DVI, USB and Power. Instead of altering the cable, [Warrior_Rocker] removed it completely. By wiring up a standard barrel jack for power, a USB type-B socket, and a DVI port, he can now use standard video, power, and USB cables to connect to the monitor.
This project was actually submitted to us on May 25th and we missed it. It’s sad that sometimes tips fall through the cracks, and we’re sorry that we missed this particularly well-executed hack. [Warrior_Rocker] wrote in asking why his project didn’t qualify after seeing the similar post on Wednesday. So please don’t take it personally if your project doesn’t get posted. If you think it fits right in here at Hackaday and haven’t heard anything after two weeks or so, consider
sending to us
again.
| 10
| 10
|
[
{
"comment_id": "207762",
"author": "Me",
"timestamp": "2010-11-04T21:17:28",
"content": "That is very well done, kudos to you for it.But it also shows how proprietary Apple is, and which lengths users will have to go to in order to enjoy a simple bit of standard connectivity.I don’t mean to bash Apple per se, but it ought to be obvious that openness is the way to go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207766",
"author": "DanAdamKOF",
"timestamp": "2010-11-04T21:30:47",
"content": "Nice and clean, well done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207781",
"author": "electrosthetics",
"timestamp": "2010-11-04T21:36:53",
"content": "Hurray, I have the same in my basement for the bench, but it use a PC to drive its hacked-in DVI connector. Works great, and it’s a very nice looking monitor. I am lacking a 24 volt supply with enough oomph, so I ended up using 12v from the PC molex and an external 12v brick together. It’s, uh temporary. :)Cheers to people to still see value in perfectly good things and make use of them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207818",
"author": "cde",
"timestamp": "2010-11-04T23:27:47",
"content": "@ Me, or it shows that open isn’t always the best. The entire point of the ADC connection is that it allows one cable to carry power, video, and usb. Next you will say that the ipod cable is crap, even though it carries power, data, audio, video, remote control all in one, instead of having separate ports for each one, requiring your openness to use 5 different cables or more at the same time.If Apple was really gunho about proprietary connections, they would have used completely proprietary standards, instead of just a custom cable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207821",
"author": "cde",
"timestamp": "2010-11-04T23:35:08",
"content": "@ Me, essentially, the ADC cable added functionality and purpose, like HTC’s ExtUSB. It served a form and purpose where no other was available. It was not proprietary for proprietary’s sake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207977",
"author": "strider_mt2k",
"timestamp": "2010-11-05T08:23:00",
"content": "Custom cable is all you need to make the money.Personally I’ll steer clear of that walled garden entirely.(Walls work both ways)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207988",
"author": "roy",
"timestamp": "2010-11-05T08:58:28",
"content": "I agree whit mt2k, its just some lame way of making money. I think every one should go universal and we (the consumers) should stop buying stuff from company’s that only use costume cables/software which wont or hardley work whit other devices (fore example APPLE).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209418",
"author": "cj",
"timestamp": "2010-11-08T15:03:09",
"content": "@cde: Who are you kidding? What functionality does it add? None,it adds ascetics, which is the opposite of function. If they wanted to reduce cable snare, all they had to do was fuse the wires of the connectors we see here, like every kvm kit on the planet. Instead, because apple certainly release any specs, you are reduced to humbly connecting it to whatever equipment Apple says you can.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209533",
"author": "walt",
"timestamp": "2010-11-08T20:52:04",
"content": "nice work. fuk apple! actually, lots of companies are doing this. especially microsoft with their xbox consoles. it’s good to see people breaking that stuff out and sharing how it’s done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "214037",
"author": "hackproject.com",
"timestamp": "2010-11-17T21:52:05",
"content": "nice hack.. its such a PITB having permanent cables, or even cables that are manufacterer specific – if only all apple products used standard cables – it’d make trying to find the right cable in a box full of 100 a whole lot easier!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,341.89473
|
||
https://hackaday.com/2010/11/04/mac-se-reborn-as-a-server-and-mac-emulator/
|
Mac SE Reborn As A Server And Mac Emulator
|
Mike Szczys
|
[
"Mac Hacks"
] |
[
"arm",
"AVR",
"dockstar",
"emulator",
"floppy",
"seagate",
"usb"
] |
[Sprite_TM] cooked up an amazing hack by
resurrecting a Mac SE using a Dockstar and ARM processor
. The retro hardware had a bad mainboard thanks to the corrosive properties of a failed backup-battery. He had been wanting to do something with
the Seagate Dockstar
and decided it would find a nice home in the Mac. But what fun is a dead machine housing a headless server? To add to the fun he included an ARM processor running a Mac emulator, along with all the bits to make the screen, keyboard, and peripherals work. When the Mac is off the Dockstar still runs as a server.
But one of the best parts is the floppy drive. It still takes floppies, but there’s no magnetic media inside of them anymore. Instead, he’s added an SD card slot and some protoboard in the space for the read head. The drive itself has had the read head transplanted for some pogo pins (hey,
we saw those earlier today
). When you insert the floppy, the pogo-pins raise up and contact the protoboard, connecting the SD card to a Teensy microcontroller.
There’s so much going on with this project we just can’t cover it all here. Things like a chemical cleaning to return the original color of the classic case, and building a converter so that the peripherals are USB compatible are just some of the pleasures awaiting you in [Sprite_TM’s] post. He’s also filmed a demo video that we’ve embedded after the break.
[youtube=http://www.youtube.com/watch?v=nvWY7wD8XEg]
| 27
| 27
|
[
{
"comment_id": "207751",
"author": "wouter",
"timestamp": "2010-11-04T20:25:06",
"content": "now that kicks ass big time xDit’s cool he’s reusing it as a computer to, but I doubt he’s going to use the emulator for anything else then getting the dockstar back online..BTW: is the emulator running from the dockstar or from an other ARM processor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207753",
"author": "Gdogg",
"timestamp": "2010-11-04T20:47:20",
"content": "emulator is on the dockstar",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207754",
"author": "Anonymous",
"timestamp": "2010-11-04T20:52:34",
"content": "I would have used a Mac Mini (run Basilisk II or Mini vMac) and widened the floppy drive to acommodate the slot loading DVD drive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207755",
"author": "Ian Tester",
"timestamp": "2010-11-04T20:52:57",
"content": "The Dockstar contains the main CPU and runs the emulator. The *second* ARM is used as a “GPU” to drive the video signal, connected to the Dockstar via USB.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207765",
"author": "zool",
"timestamp": "2010-11-04T21:28:35",
"content": "watch cursor = nostalgic rage",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207767",
"author": "DanAdamKOF",
"timestamp": "2010-11-04T21:33:37",
"content": "I really admire sprite, he is a very clever hacker and always has really great writeups. This is no exception.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207796",
"author": "Pilotgeek",
"timestamp": "2010-11-04T22:18:42",
"content": "@Anonymous: The point was not to find a purpose for an old Mac, the point was to find a home for the Dockstar.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207816",
"author": "Daniel",
"timestamp": "2010-11-04T23:23:27",
"content": "That’s really impressive! I love the integration of the two systems.@AnonymousBut you didn’t.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207827",
"author": "Johceti",
"timestamp": "2010-11-04T23:54:45",
"content": "I love the detail in his write-up! Awesome idea!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207858",
"author": "jones",
"timestamp": "2010-11-05T02:13:25",
"content": "I especially liked that you could access the Dockstar through a terminal running on the mac emulator.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207874",
"author": "BLuRry",
"timestamp": "2010-11-05T02:47:07",
"content": "Having a hacked dockstar and having done many unnatural things to old Apple computers as well, I can say this in a rather qualified way: HOLY SHIT this hack is so full of epic win I feel totally unworthy to have even been treated to the video of this. Thank you Sprite! It’s an inspiration!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207925",
"author": "cantido",
"timestamp": "2010-11-05T04:24:31",
"content": "So.. if you put a real floppy in by mistake the pogo pins damage the surface of the disk. nice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207939",
"author": "Gdogg",
"timestamp": "2010-11-05T04:53:26",
"content": "@DamAdomKOF I agree. One of my favourites. I wish he put in more details, instead of making ridiculous jumps, or at least explained how he thought of certain things. He needs to realize he’s smarter than we are ^_^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207943",
"author": "cde",
"timestamp": "2010-11-05T05:53:00",
"content": "@Cantido and what exactly would one still be doing with a real floppy? Saving that oh so important text file?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207944",
"author": "Ian",
"timestamp": "2010-11-05T05:58:08",
"content": "@cantido, I think that’s a feature. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207945",
"author": "Ian",
"timestamp": "2010-11-05T06:09:36",
"content": "@anonymous that’s too much power for emulating such an old machine, and the hack there would quite literally be a hack – hacking a bigger hole into the case.This hack, however, is amazingly detailed, with a lot of great effort put into it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207964",
"author": "Kaijuu",
"timestamp": "2010-11-05T07:34:19",
"content": "The purpose of this hack is to have something that serves Sprite’s files, and that something needs to be on a strict diet.Power doesn’t come cheap, especially when you are living in a regular house and are expected to pay for your own utilities bill.A Mac mini or what have you does not fit that bill; this rig does and it looks lovely to boot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207970",
"author": "MG",
"timestamp": "2010-11-05T07:57:51",
"content": "*aehm* not a Teensy microcontroller, but a “teensy” SD-USB card reader, so teensy as in small not as the name!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207973",
"author": "cmholm",
"timestamp": "2010-11-05T08:18:32",
"content": "[Pendantic] That’s no SE, that’s an SE/30! [/Pendantic] An SE/30 was my first home PC, and when it lost the place of honor to a Quadra 405, it became my NetBSD testbed until the video went south. Kudos to Sprite_TM for an incredible piece of work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207978",
"author": "strider_mt2k",
"timestamp": "2010-11-05T08:24:34",
"content": "Pardon the expression, but holy crap!That thing is clever AND IT DOES SHIT!Seriously cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208053",
"author": "sp00nix",
"timestamp": "2010-11-05T11:23:16",
"content": "Wow that battery tore sht up. I’m gonna go pull the ones out of my compact macs now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208068",
"author": "andres",
"timestamp": "2010-11-05T12:34:26",
"content": "holy shit. this is just so much epic win. I’m a fan of sprite but jesus christ he just just beat the shit out of every hack right here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208083",
"author": "svofski",
"timestamp": "2010-11-05T13:20:09",
"content": "Epic!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208090",
"author": "jim",
"timestamp": "2010-11-05T13:35:39",
"content": "Do want.Every time I see an old all-in-one computer, I want to swap its guts for something modern.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208193",
"author": "Mr Hacker",
"timestamp": "2010-11-05T19:59:02",
"content": "in a way , macs are simlar to hummerhummer – over-priced over-famed over-hyped slab of metal and plasticmacs= overpriced , over-hyped slab of silcon gorilla-glued together",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208400",
"author": "cde",
"timestamp": "2010-11-06T06:02:07",
"content": "@cmholm, Sprite got it right, hackaday had it wrong. It is indeed a SE/30. Or atleast it was. It is now a SE/Arm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209577",
"author": "Joe",
"timestamp": "2010-11-08T22:47:14",
"content": "ZTerm, Mosaic, Mac PPP … FTW!!Must go dig out my Mac IIvx…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.091149
|
||
https://hackaday.com/2010/11/04/snes-controller-dock-for-dell-streak/
|
SNES Controller Dock For Dell Streak
|
Mike Szczys
|
[
"Android Hacks"
] |
[
"cable",
"controller",
"dell",
"emulator",
"pdmi",
"snes",
"streak",
"sync"
] |
The Dell Streak is an Android tablet. [Collin Meyer] wanted to use an original SNES controller to play emulated games on the device. What he came up with is
a controller that is a dock for he handheld
.
Several things have to come together to make this happen. The Streak uses a standard PDMI dock that connects to a computer via a USB connection. [Collin] repurposed a sync cable by connecting a couple of pins on the dock connector which forces the device to use USB host mode. From there he used a Teensy microcontroller to convert the SNES controller into a USB device (very similar to
this hack
). The Teensy and shortened sync cable find a new home inside the SNES controller body and, in the video after the break, it looks like he used
something like sugru
to add a bit of support for the Streak.
[youtube=http://www.youtube.com/watch?v=FbFpMTAxuMs]
| 9
| 9
|
[
{
"comment_id": "207734",
"author": "Nair",
"timestamp": "2010-11-04T19:39:04",
"content": "Why not for N900, I just installed mario with emu on it. It’s a pain in the ass playing it with the normal cursor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207737",
"author": "Tex©",
"timestamp": "2010-11-04T19:51:50",
"content": "so he removed the bumpers ……….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207738",
"author": "AK",
"timestamp": "2010-11-04T19:56:49",
"content": "damn he’s good playing mario in a mirror!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207743",
"author": "zool",
"timestamp": "2010-11-04T20:09:07",
"content": "only problem,… he can’t ‘do a barrel roll’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207745",
"author": "alan",
"timestamp": "2010-11-04T20:13:50",
"content": "What pins from the SNES controller go to what PINs on the teeny?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207860",
"author": "SomeDude",
"timestamp": "2010-11-05T02:15:17",
"content": "Here’s the link to the source that should’ve been in this post:http://www.streaksmart.com/2010/11/snes-game-controller-hacked-to-plug-into-and-work-with-dell-streak.htmlSame still shot and everyone else is linking there so it’s obviously where it’s from.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207922",
"author": "Amos",
"timestamp": "2010-11-05T03:44:59",
"content": "Either he mis-wired it, or he has his emulator’s key mapping set up oddly to better facilitate game-play for the demo video, because “A” is supposed to do a “spin-jump.”Also, he should have attached the dock to a pedestal protruding from the face of the pad, so that L and R could still be accessed, and so the weight would be more evenly distributed (with the center-of-gravity of the phone above the center of the pad). Maybe he could have even extended some functionality of the phone to a connector in the pad’s wire hole; like putting a headphone jack there, or something.Still, the SNES pad is the pinnacle of game input device technology, and this hack puts it to good use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207979",
"author": "strider_mt2k",
"timestamp": "2010-11-05T08:27:28",
"content": "I also like the SNES pad for retro gaming.Can’t blame them for wanting to do it but reduced functionality in the controller kills it for me.Still pretty cool if it’s working for the maker.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208764",
"author": "hacker",
"timestamp": "2010-11-07T03:51:21",
"content": "doesn’t make it top heavy??",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.031001
|
||
https://hackaday.com/2010/11/04/quick-and-easy-street-view-treadmill/
|
Quick And Easy Street View Treadmill
|
Mike Szczys
|
[
"home hacks"
] |
[
"google",
"stealth switch",
"street view",
"treadmill"
] |
This is [Thomas Clauser’s]
Google Street View enabled treadmill
. He points out that most of the
Street View hacks
use a measurement of rotational movement to interface with a computer. He respects that but didn’t want to take the time to make it work with his treadmill. Instead, he used a stealth switch propped up on a book below the treadmill frame, but any switch can be used as long as you know how to connect it to the computer. When you stand on the treadmill the frame flexes and almost clicks the button, but when you start running it moves the rest of the ways and closes the switch. From there an
autohotkey
script is used to advance Street View.
| 11
| 11
|
[
{
"comment_id": "207698",
"author": "Bill",
"timestamp": "2010-11-04T17:38:36",
"content": "Wouldn’t a piece of tape of the tread and a reflective light sensor be even ‘easier’ then lifting a treadmill and trying to get the switch positioned just right? Would also work at lower speeds as well, and allow for greater resolution with more pieces of tape.Just a thought.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207699",
"author": "Bill",
"timestamp": "2010-11-04T17:40:58",
"content": "Well, nvm, I guess the point here is using something like a mouse to get clicked; no harware hack required. But also brings up another thought, if you are going to use a mouse to get clicked, why not use the optical sensor to track speed?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207706",
"author": "Thomas",
"timestamp": "2010-11-04T18:01:04",
"content": "Thanks for the post and feedback.My next step was to put a scroll wheel in contact with the treadmill and count the number of repetitions. This was the 5 minute version…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207719",
"author": "Aero",
"timestamp": "2010-11-04T18:35:20",
"content": "Scroll wheel encoder? That doesn’t seem reliable. I would go with the optical sensor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207724",
"author": "Polaczek",
"timestamp": "2010-11-04T18:56:03",
"content": "THIS GUYS DESERVES A PHD!!!!!!!!!!!!! /sarcasmCool project though, nice and simple.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207729",
"author": "Gilliam",
"timestamp": "2010-11-04T19:17:43",
"content": "cherry switch wired to a keyboard controller chip(to the membrane wire pair that goes to the up arrow). no autohotkey.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207747",
"author": "vonskippy",
"timestamp": "2010-11-04T20:14:37",
"content": "Streetview hacks suck. Even if they were clever, it’s still a slideshow of a ugly street that is in theory supposed to enliven your workout walk/jog/run. If you want a streetview, RUN OUTSIDE.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207764",
"author": "handlebar",
"timestamp": "2010-11-04T21:26:21",
"content": "@vonskippy You seem to be missing the fact that sometimes running outside is not an option. Ever heard of bad weather? Another point to keep in mind is the option to run down virtual streets you’ll probably never get the chance to run in the real world.Streetview hacks are a bit of harmless fun and this is another simple fun hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207983",
"author": "strider_mt2k",
"timestamp": "2010-11-05T08:32:00",
"content": "Pfft…why tread around in the dirty bottom of a gravity well?With the right setup you could jog through the universe!It would be an interesting demonstration of the solar system to scale the walking distance to the distance between celestial objects for instance.One could stride the very cosmos!Yeah!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208139",
"author": "Mrshko",
"timestamp": "2010-11-05T16:51:44",
"content": "This is awesome. What a great idea! Perfect for Oregon in the winter time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209089",
"author": "michael",
"timestamp": "2010-11-07T20:06:18",
"content": "You could use some paint, and a webcam pointed at the belt.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.213735
|
||
https://hackaday.com/2010/11/04/win-a-harley-in-this-design-contest/
|
Win A Harley In This Design Contest
|
James Munns
|
[
"contests"
] |
[
"contest",
"discovery",
"EBV",
"Elektronik",
"HarleyHarley",
"stm32"
] |
EBVElectronik of Germany is hosting a
design contest
based around the STM32F microcontroller. They are inviting engineers and inventors to come up with the best general purpose design ideas, with prizes including a Harley Davidson Motorcycle and a 1000 euro Apple voucher. Even better, they are offering a free
STM32 Discovery Kit
to anyone who enters, just to get them started. Sound too good to be true? Well, there is one catch. As of right now, entrants are limited to:
Any individual or group of individuals, age 18 and over as of the date of entry and located in EMEA (Europe and Middle East and Africa)
Sorry USA. We have to save some love for the international crowd. Do us a favor and
let us know
what you are planning to build, or if you win any of the prizes!
| 38
| 38
|
[
{
"comment_id": "207669",
"author": "Troll_Dragon",
"timestamp": "2010-11-04T16:07:58",
"content": "The board is only $10 anyway…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207673",
"author": "Julien",
"timestamp": "2010-11-04T16:23:18",
"content": "Yeah!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207674",
"author": "steve",
"timestamp": "2010-11-04T16:28:19",
"content": "Ha! that’s awesome. I can’t get the free dev board because they won’t ship it to the us; yet the prize is a shitty bike shipped all the way from my home town.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207678",
"author": "22gunsonfire",
"timestamp": "2010-11-04T16:38:15",
"content": "Gotta love that sweet sweet irony",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207682",
"author": "NatureTM",
"timestamp": "2010-11-04T16:48:40",
"content": "@steve, a fellow cheesehead, “ay?”I can’t believe they won’t let god’s favorite country participate! Man, if W. was still president we’d bomb these suckers good.‘merica!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207683",
"author": "TheBadWolf",
"timestamp": "2010-11-04T16:51:46",
"content": "@NatureTMHow can you be so sure your country is god’s favorite? Japan is making all the delicious ICs we love ;pI entered the contest anyway (canada) just in case they would ship it here so i can laugh a bit ;p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207686",
"author": "Tiago",
"timestamp": "2010-11-04T17:12:20",
"content": "How do I know if they send me a board?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207688",
"author": "Ivan",
"timestamp": "2010-11-04T17:13:07",
"content": "I’m in Spain, ole!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207689",
"author": "Agent Schrader",
"timestamp": "2010-11-04T17:13:43",
"content": "Marketing vehicle. They just want as many projects as possible to start with their MCU as a base. The winner can possibly consolidate the expenses with the prize. The rest will not change the project base MCU because of lazyness and keep on buying MCUs. Too much effort just to get one demo board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207703",
"author": "Hackius",
"timestamp": "2010-11-04T17:43:36",
"content": "NatureTM: Now you know how the rest of the world feels about exclusive US contests",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207707",
"author": "darkore",
"timestamp": "2010-11-04T18:03:10",
"content": "Thanks for the tip HaD.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207711",
"author": "Ha'KotH",
"timestamp": "2010-11-04T18:12:53",
"content": "If they let the U.S. enter, nobody from anywhere else could win, now, could they?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207712",
"author": "fartface",
"timestamp": "2010-11-04T18:14:06",
"content": "Can I get a real bike instead of a Craptastic Harley?I’d rather have a Hayabusa instead of a junky slow old fart Harley.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207718",
"author": "TheBadWolf",
"timestamp": "2010-11-04T18:30:28",
"content": "@fartfaceBusa FTW!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207720",
"author": "Just me",
"timestamp": "2010-11-04T18:40:52",
"content": "Just registered, can’t wait to see if I get a board. I don’t have too many MCUs at the moment ;) Thanks HaD!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207722",
"author": "the steven",
"timestamp": "2010-11-04T18:51:39",
"content": "Harled Davidson riders use Linux, not Apple… Just sayin’…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207723",
"author": "rob",
"timestamp": "2010-11-04T18:54:08",
"content": "Well, seems like i’m not gonna win a harley after all…entries had to be submitted by September 15th.(see terms and conditions pdf on right side)anyway, i might fill it in and just try to get a freebie !I don’t care about motorbikes anyway, just give me the board.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207727",
"author": "James Munns",
"timestamp": "2010-11-04T19:10:04",
"content": "@rob, The contest is good until September 15th 2011, you still have some time.Though, I would recommend you try and enter the contest, not just for the free board!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207732",
"author": "Tony",
"timestamp": "2010-11-04T19:30:20",
"content": "EFF harley’s.. geeez, most overrated pieces ofcrap i’ve ever rode. the brittney spears of themotorcycle world.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207742",
"author": "wouter",
"timestamp": "2010-11-04T20:08:03",
"content": "Belgium does have advantages?But to be honest my ARM skills aren’t that good.. Does HaD make a how-to of it after the rest of the AVR chips how-to has been posted?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207758",
"author": "Dante",
"timestamp": "2010-11-04T21:00:28",
"content": "Um, I think the reason this does not include the US, is because the contest is being run by AVNET, last I checked they had no offices in the US.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207815",
"author": "Whatnot",
"timestamp": "2010-11-04T23:20:42",
"content": "EMEA? Are they messing with us? I never heard that term and see no possible connection between those continents/regions.I think it’s just a revenge over all those US-only giveaways.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207871",
"author": "Julien",
"timestamp": "2010-11-05T02:33:40",
"content": "@Whatnot: EMEA = Europe, Middle East & Africa.it’s a common term here in this zone, and that define the market of many companies.For example the European Headquarter of Facebook in Europe (located in Dublin, Ireland) is officially “Facebook EMEA”, since it regroups all the language support for all European, Middle East and African countries.They probably have to limit the contest’s range for legal reasons, the same way USA’s services (just to name a few: Hulu, CBS, ABC, …) limit their broadcast to USA region/IP only (really suck btw!!! I would love )",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208022",
"author": "iHME",
"timestamp": "2010-11-05T09:33:47",
"content": "Well they want you to present the ida when applying to get the board.How can I know what I can do with the hardware if I don’t get my hands on it?Oh well, I’ll make up something cool & useful sounding that can be applied to broad range of projects.Also, Its nice to have a Giveaway/contest that people in the EU region can participate, instead of the usual US-Only.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208113",
"author": "darkblackcorner",
"timestamp": "2010-11-05T15:12:26",
"content": "@iHMEI’m having the same problem – I want a new board to play with and I want to produce a cool project, but I’d like to have to opportunity to see what it can do first…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208147",
"author": "Greycode",
"timestamp": "2010-11-05T17:07:47",
"content": "It is called “get a good idea from others for 10 euros.” It is cheaper to pay someone ten euros for a good idea than it is to hire them. Euro contest, American bike, does that just reek of irony?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208244",
"author": "iHME",
"timestamp": "2010-11-05T22:35:36",
"content": "@GreycodeThe intellectual property stays as the property of the one entering it.They do want a license to publish full source code, schematics and documentation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210896",
"author": "otacon2k",
"timestamp": "2010-11-11T17:10:27",
"content": "Yay, board arrived today (registered the day this article was on HaD). Packaged well in a little blister saying “This could be your Harley Davidson”… I’m glad the envelope was cushioned, seems like the mailman had a great time trying to cram this thing through the door’s mail opening (as I had trying to get it out of the door again…). Up and running (yep, there’s a funky blinking sketch loaded to it by default).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210974",
"author": "none",
"timestamp": "2010-11-11T20:26:41",
"content": "I also received mine today, but I can’t seem to access the st.com/stm32-discovery link as mentioned on the packaging and the board itself. Keep getting a 404 error. Looking forward to playing with my first IC though. Hopefully I can have some fun without the aid of their website.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211492",
"author": "otacon2k",
"timestamp": "2010-11-12T18:05:41",
"content": "I had no luck with the website either. Tryhttp://www.st.com/internet/evalboard/product/250863.jspand for information (german) I usedhttp://www.mikrocontroller.net/articles/STM32I went for the Atollic/TrueStudio keychain, but Avira said the TrueStudio Installer showed signs of a trojan. Can anyone confirm this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211529",
"author": "wouter",
"timestamp": "2010-11-12T19:35:30",
"content": "I don’t have a problem with it, it runs fine. But I must say that when you try to use the tutorials of ST you will need a an3268 package and another package with the firmware, the second one is still unfindable..I allready posted the issue on the st forums.I hope they’ll find a solution fast!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212303",
"author": "Flash Gordon",
"timestamp": "2010-11-14T13:49:57",
"content": "@otacon2k:What is your registration number?I registered on Nov. 06th and got a registration number of 52x but have not received the eval. board yet. I just wonder how many free boards they have…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212377",
"author": "gavin",
"timestamp": "2010-11-14T17:42:44",
"content": "Anyone know if the xduino IdE is available anywhere i’m new to mcu’s and have a setup that I want to add to .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212837",
"author": "Just me",
"timestamp": "2010-11-15T10:50:06",
"content": "My number is in the 200-range and I got my board the same day as the others here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215402",
"author": "Flash Gordon",
"timestamp": "2010-11-20T12:20:08",
"content": "Anybody else received their evaluation board?Probably they ran out of stock…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215869",
"author": "Mihail121",
"timestamp": "2010-11-21T11:33:47",
"content": "I got mine yesterday and my number was 9XX, so I guess they still have some boards. I definetely love my board (my first proto-board btw.) and can’t wait to start coding :))",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215928",
"author": "otacon2k",
"timestamp": "2010-11-21T12:58:50",
"content": "@wouter:I think I saw your thread there. I had a hard time getting it to run with atollic. I’m working with a user account without administrative rights, which seemed to cause some problems. What worked:1. Get the an3268 package (this IS the firmware package)2. Run the STLink-Updater found in “Atollic_install_folder/servers/ST-Link_gdbserver” as administrator (or with an administrator-account)3. Run Atollic True Studie as an administrator (or with administrative rights)Without admin rights I always got an “ST-Link initialization failed”-error (even using only the gdbserver-program outside TrueStudio.Hope that helps, Otacon2k",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "513347",
"author": "kukuta",
"timestamp": "2011-11-19T18:31:53",
"content": "Did they announce the contest results already?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.166295
|
||
https://hackaday.com/2010/11/04/diy-coffee/
|
DIY Coffee Gripper
|
James Munns
|
[
"Robots Hacks"
] |
[
"coffee",
"egg",
"grounds",
"hand",
"vacuum"
] |
Here at Hackaday, we love it when people make home brew versions of elaborate, expensive, and technical equipment. By gathering up some coffee grounds, a balloon, some plastic tubing, and his lungs, [Carlos] has provided a
good how-to
on making your own coffee grounds robotic hand. Inspired by the U. Chicago, Cornell, and iRobot Collaboration we
previously covered
, he is one robot and a vacuum pump away from having their setup. Check out his blog for a list of components as well as a couple hints to help the build go smoothly. Be sure to check out the video after the break.
[via
Make
]
[youtube=http://www.youtube.com/watch?v=q-gHLYIWrrs]
| 20
| 20
|
[
{
"comment_id": "207651",
"author": "wouter",
"timestamp": "2010-11-04T15:05:48",
"content": "CHECK xDWant want want!btw: who’s making the robot?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207660",
"author": "Nathan Zadoks",
"timestamp": "2010-11-04T15:46:16",
"content": "The day the original was on hackaday I made one with a plain balloon and some sugar.. It’s not that special tbh. In two days, mine will have a vacuum pump too =)–Nathan",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207662",
"author": "Nathan Zadoks",
"timestamp": "2010-11-04T15:49:51",
"content": "Oh, and I forgot to mention: You don’t need a vacuum chamber to completely fill the thing. You put the coffee/sugar/whatever in a soda bottle (the small ones), blow the balloon up normally and put it over the top of the bottle. Then, you just hold the bottle upside down.(and you can reverse the air pumps for aquariums for a vacuum pump. the pet shop sells the tubing too, and seeing aseveryonehas either sugar or coffee, the only things you need to buy are the tubing, the balloon and the pump.)–Nathan",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207664",
"author": "Kevin",
"timestamp": "2010-11-04T15:55:51",
"content": "I remember those in college. We didn’t call them Coffee makers though…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207672",
"author": "name",
"timestamp": "2010-11-04T16:16:40",
"content": "Hm, it’s not that great challenge to put coffee into a balloon, is it? They even said that it is coffee and it’s obvious that a balloon is the first thing to try out. Don’t you think when you try out less wall thickness, there should be more flexibility and adhesion? It would be intresting to know how much the friction yields to this effect.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207680",
"author": "Hirudinea",
"timestamp": "2010-11-04T16:40:11",
"content": "Sadly with government funding the way it is, in Canada this is high tech.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207684",
"author": "Dave",
"timestamp": "2010-11-04T16:56:37",
"content": "Video proof that you, too can look this cool with some techno music, coffee, and a balloon to huff on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207685",
"author": "RadBrad",
"timestamp": "2010-11-04T17:00:46",
"content": "Java Bong!I need that to keep myself awake during long nights of assembly coding.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207691",
"author": "reza",
"timestamp": "2010-11-04T17:16:07",
"content": "looks like bong hits from the can. in protest of prop 19 failing?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207704",
"author": "Andynonymous",
"timestamp": "2010-11-04T17:43:59",
"content": "DID YOU KNOW THAT…?The majority of the Cornell gripper was 3D printed using a commercial 3D printer?NOW YOU KNOW…!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207708",
"author": "marcus",
"timestamp": "2010-11-04T18:04:17",
"content": "reference from bill nye the science guy^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207731",
"author": "arjan",
"timestamp": "2010-11-04T19:24:04",
"content": "You don’t need a vacuum pump, just a cylinder and piston. Tie the piston to a servo and you’re done. Nu hoese, tubes, pumps etc. needed. Maybe use oil instead of water to remove “sloppiness” ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207739",
"author": "Nair",
"timestamp": "2010-11-04T19:56:52",
"content": "Oh please dont post shit like this a 3 year old can suck a pencil up with nothing.Just delete this article srsly its so fail.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207759",
"author": "jman",
"timestamp": "2010-11-04T21:05:09",
"content": "is that weed in the background!!!! :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207844",
"author": "gmcurrie",
"timestamp": "2010-11-05T01:20:52",
"content": "Saw the Cornell vid a while ago & got hold of a few party balloons & a pump to check it out – blocked the ‘breathe’ valve on the pump with hot glue so in theory was just a sealed piston – didn’t work too well, if at all – crappy pump..Interesting to see from Carlos’ vid the scale of pressures involved = lung-power = not massive pressures at all.I like it – wonder if might inspire offshoot ‘clambering’ robot drivetrains – the more complex/rugged the terrain, the better",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207863",
"author": "Andynonymous",
"timestamp": "2010-11-05T02:23:12",
"content": "@marcusI’m glad someone got the reference! =D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207900",
"author": "Andynonymous",
"timestamp": "2010-11-05T03:14:09",
"content": "And yeah, to be honest, this isn’t really that incredible. If it was at least had a small motorized vacuum system (which was what Cornell had when I saw it IRL), then I wouldn’t be making that much of a fuss.I mean, this device doesn’t need a powerful vacuum pump (if my mental reverse engineering is correct, the hand held one one was powered with 1 or 2 1.5v batteries, with the vacuum pump motor being driven by one of those small DC motors that are ubiquitous in science kits for kids… Actually, the fact that you could use your lungs should demonstrate this…)Well, its already posted… In the grand scheme of things, I just wasted my time typing all this…Now for something not so temporally wasteful and a chance for an otherwise meaningless reply to a silly post have some use:Would this lung powered version be beneficial to a person without hands? I don’t know, as, of the writing of this reply, I still have the use of both of my hands…I mean, sure robotic replacement arms are awesome, but they are kinda pricey and the cheaper ones kind of suck, from what I hear (again, I still have use of both my arms, so this subject doesn’t immediately effect me…) I mean, it would probably be better than nothing…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208133",
"author": "Spritle",
"timestamp": "2010-11-05T16:33:48",
"content": "Almost looks like someone needs to call bs on this. In the video, is he assisting the balloon grip with his fingers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208141",
"author": "JOel",
"timestamp": "2010-11-05T16:59:41",
"content": "im the only one to have see the background at 1:50",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211029",
"author": "Kyle",
"timestamp": "2010-11-11T21:37:14",
"content": "Hey look! A toonie!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.351009
|
||
https://hackaday.com/2010/11/04/test-beds-and-jigs-with-pogo-pins/
|
Test Beds And Jigs With Pogo Pins
|
Devlin Thyne
|
[
"Arduino Hacks",
"hardware",
"Microcontrollers",
"Tool Hacks"
] |
[
"Pogo pin",
"production hacks",
"Test bed",
"Test jig"
] |
Pogo pins – spring-loaded pin contacts are pretty fun to play with and even cooler when they get used in electronic devices like Adafruit and SparkFun’s test jigs. Check after the break for how these two companies have created their own production hacks.
At
Adafruit
, they build up from an Arduino with a proto shield. An unpopulated board is loaded with pogo test pins and then connected to the proto shield. The board rests on and is aligned with standoffs. The latest Adafruit test jig needs to have an extended test, so instead of mashing a finger against the test board for an extended period of time, they use “ears” to hold the board in place during testing.
At
SparkFun
, they used to do something similar to what Adafruit is doing now. Now with
BatchPCB
as the prototyping arm of the company, they make one-off boards for their test beds. For each test bed, three boards are made, all made based on the Eagle files of the board the bed will be testing. The bottom board keeps all of the test pads from the original board and enlarges the holes for the pogo pins, and then adds circuitry needed for the board test. The middle board has enlarged holes for the tips of the pogo pins to just barely stick through and is what the board under test rests on. The top board is just for alignment.
We could see these devices getting extended to having buttons that are pressed when a board is in place so the tests would begin automatically. Add a robotic arm, and the whole thing would be automated. Scale-up the jig for whole panels of boards. We would like to see more of the hacks people make just to make in production.
| 21
| 19
|
[
{
"comment_id": "207632",
"author": "Paul",
"timestamp": "2010-11-04T14:02:57",
"content": "I made similar automatic tests for Teensy, but using a piece of plastic and drill press instead of fabricating PCBs. It’s pretty easy to just print a copy of the original PCB on a laser printer, tape it to the plastic and center punch each pin. I edit the pads so there’s a tiny white dot in the center which makes placing the center punch easy. Then on the drill press, the tiny drill bit hits each hole nicely.It takes a little patience to drill tiny holes through a 1/2 inch thick plastic piece. Drilling down a bit, then backing up to remove the material is best, so it doesn’t gum up on the bit. But even going slowly, a chunk of plastic is a lot cheaper and a LOT faster than waiting for 3 PCBs to be fabbed (especially from batchPCB).To make the test start automatically, I do NOT use a pushbutton. With Teensy, every board has at least 2 Vcc pins. I just apply 40 mV (through a 1k resistor) to one of the Vcc pins. 40 mV is not enough to flow current through any diode junction or turn on any transistor, so unless Vcc and GND are shorted (the reason for the 1k resistor), there’s no current flow.My automatic start detection looks more more than 20 mV on the other Vcc pin. That other pin has the surface of the plastic machined slightly lower (just chuck a 1/8 inch end mill in the drill press and lightly touch the plastic to take away a little material). The 40 mV is created by a resistor divider, actually with 3 resistors so there’s both 40 mV and 20 mV. I just used a LM385 opamp, and 10K pull-down resistor on the “short” pin. When the user presses the board down, it touches that pin last and the opamp sees the voltage suddenly go from zero to about 40 mV. Opamps like LM385 need a pull-down resistor to make a nice TTL logic signal. Maybe a LM393 would have been easier?Anyway, if anyone’s looking for auto-start ideas, that’s how I’ve been doing it for testing Teensy for a couple years. Works great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207635",
"author": "confused",
"timestamp": "2010-11-04T14:12:48",
"content": "So… what exactly do these things do? I feel like the author made some assumptions about my understanding that weren’t correct. Any help?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207640",
"author": "Mic",
"timestamp": "2010-11-04T14:26:02",
"content": "I love it. I remember watching, “How its made” once and they had an automatic jig for testing Matrox video cards using pogo pins.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207642",
"author": "w0rl4ck",
"timestamp": "2010-11-04T14:30:48",
"content": "@Paulgreat board, teensy is awesomewaiting on teensy ++ for some fun teststhanks for sharing :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207643",
"author": "Mic",
"timestamp": "2010-11-04T14:31:24",
"content": "Wow those are expensive. Spark fun wants 96 cents a piece for the cheap pogo pins. Worth it guess if you need em.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207650",
"author": "John",
"timestamp": "2010-11-04T15:03:45",
"content": "@confusedThe idea is to test the PCB for defects. When you’re producing a decent sized batch of PCBs, there’s a good chance a couple are going to have pin shorts, joined pads etc. The ‘pogo pins’ are spring loaded retractable pins that you can put in a test board and press down onto the PCB you’re trying to test. Since they’re retractable, you can ensure that all of them are in contact at the same time. Each one touches a test point (power, ground, etc) and with sufficient logic on the test PCB you can ensure that the tested PCB is free of defects.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207659",
"author": "Quin",
"timestamp": "2010-11-04T15:42:11",
"content": "@confusedIf you are having a bunch of circuit boards fabricated, you need a way to check that they work correctly. You might test that all the tracks go where they are supposed to by using a ohm meter, but that takes a while if you need to test 100 boards. For larger batches and more complicated projects, you want something more automated. Something that you can just push your new board against, and let a microcontroller do the testing for you.These jigs let you do just that. Use an unpopulated board to hold the pogo pins and connect them to your testing rig; then just push the final product against it and have it run your automated tests.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207661",
"author": "NatureTM",
"timestamp": "2010-11-04T15:49:36",
"content": "Soldering on some pin headers during development, and removing them upon completion really isn’t much of a hassle, but I could see this saving a lot of time if I wanted to quickly program several usb-less dev boards with the same code.It reminds me a bit of the old solderless mod chips for Xboxen. They weren’t always reliable, but some of the designs were pretty clever.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207675",
"author": "Fallen",
"timestamp": "2010-11-04T16:28:37",
"content": "Oh cool! Those look like the pins used on the agilent ICT machine at work. Although the pins on it are gold plated on the heads, these didn’t appear to be.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207676",
"author": "Oren Beck",
"timestamp": "2010-11-04T16:29:36",
"content": "@ Paul- Good work on the autostart systems.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207681",
"author": "dave",
"timestamp": "2010-11-04T16:43:16",
"content": "SparkFun has a pretty good tutorial on pogobeds:http://sprkfn.com/t/138",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207714",
"author": "oh my...",
"timestamp": "2010-11-04T18:16:31",
"content": "@daveYeah genius, that’s what they’re linking too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207735",
"author": "Paul",
"timestamp": "2010-11-04T19:42:56",
"content": "@NatureTM – Programming code into chips is only part of it.For products like Teensy, every pin needs to be verified, not just those used to program the code. For Teensy, my test first programs in code that reads all the pins except Tx, and then sends several bytes out the Tx pin at 1 Mbit/sec. It then applies a low to each pin while driving all the others high, and then a high to each pin while driving all the others low. For each pattern, the Teensy is rebooted and the several bytes are read and compared to the correct pattern. If any doesn’t match exactly, the board fails. Actually, the A0 and Ref pins are driven with various analog voltages, and the A/D is used to output 1 byte, which is compared to a known correct value (+/- a couple codes for random noise and settling time, since this all happens pretty quick). Reading the analog result at different ref voltages verifies the analog pin and the ref pin are connected properly, and doing so with all other pins driven both ways verifies no shorting to from those to any other pins.That may seem overkill, but when you make a lot of boards, a tiny fraction have problems. With Teensy, it’s a little under 1%. Most end up being microscopic solder shorts between pins under the QFN chip. Turns out there’s a shop with an x-ray inspection machine where they can find these and sometimes reflow the solder to fix them. Even if it can’t be fixed, at least no customer will ever get the bad board. Any unfixable but still usable (sans a pin or two) are usually given away at the local Dorkbot meetups here in Portland.Testing guarantees that when someone buys the board, they’ve got 100% good board that’s had every single pin fully tested. Especially for development boards, it’s critically important that every pin functions. If even 1 pin is bad, it could cost someone a LOT of time trying to debug their code or project.The autostart feature on the test saves a lot of time while testing. You just press the board onto the pins, and the test begins when that shorter pin touches and all the others have engaged well. There’s actually about a 1/4 second delay to allow that last pin to engage well. I’m not sure why some tests are so slow… I use heavily optimized code on the tester, so the entire test takes under 1 second. Either a green or red light turns on.Here’s a copy photos of the first Teensy 1.0 tester, taken about 2 years ago:http://www.pjrc.com/teensy/beta/tester1.jpghttp://www.pjrc.com/teensy/beta/tester2.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207820",
"author": "Whatnot",
"timestamp": "2010-11-04T23:31:28",
"content": "Thathttp://ladyada.net/make/pogojig/is chuckfull of 404 picture links.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207924",
"author": "Scott",
"timestamp": "2010-11-05T04:06:20",
"content": "@confused – in case you didn’t get what exactly pogo pins are, they’re little spring-loaded contacts. Put pressure on them and they shorten smoothly, maybe up to 1/4″ or so for larger ones. They let you make a solid, but temporary, connection.Pogo pins tend to be obscenely expensive through regular outlets. I happened to stumble across a booth full of them at the SEG Electronics Market in Shenzhen and stocked up – probably spent the equivalent of $20 for a couple of bags of them.Even better, I found a place that makes fixtures. Now, if I want a fixture for doing hundreds of boards, I send them a sample and the Gerber files and some notes about my requirements (through an intermediary since no one there speaks English or wants to deal with international shipping) and I get back a fixture with alignment pins or a milled bed, switches, and a big lever that lowers the top half and engages all of the contacts.Last time I got one, it cost me about $150, including shipping. The pogo pins alone in that thing would have cost me $80 domestically.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2112223",
"author": "David Albert",
"timestamp": "2014-11-09T14:18:11",
"content": "Can you share the contact info for the test jig company?",
"parent_id": "207924",
"depth": 2,
"replies": [
{
"comment_id": "2112788",
"author": "Scott",
"timestamp": "2014-11-09T18:06:17",
"content": "I don’t think they’re doing small quantities anymore. There are probably others at SEG, but I haven’t been there in years. If I ever had their direct contact information it was on a Chinese business card. I only had contact with them through my driver/translator.",
"parent_id": "2112223",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "207954",
"author": "Leef_me",
"timestamp": "2010-11-05T06:59:58",
"content": "Wow! Thanks very much for the article.I recently found the test-jig info on Sparkfun.But now I can compare the jig methods of the two companies for more methods and inspiration.Thanks Hackaday!>>Thathttp://ladyada.net/make/pogojig/is chuckfull of 404 picture links.@Whatnot — try again, I got 12 really great photos, each with regular and higher-res pictures.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209271",
"author": "Whatnot",
"timestamp": "2010-11-08T06:02:11",
"content": "@leef_me Still some dead ones, like the 3rd and 4th that goto:http://ladyada.net/make/pogojig/Documents/ladyada_net-www/ladyada_net-www/images/pogojig/victim.jpgandhttp://ladyada.net/make/pogojig/Documents/ladyada_net-www/ladyada_net-www/images/pogojig/pogo.jpgAnd that are dead links.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209553",
"author": "David",
"timestamp": "2010-11-08T22:05:27",
"content": "I tried to look for some pogo pins here in Europe, but couldn’t find any until I came across some pins called plungers over at Farnell:http://nl.farnell.com/multicomp/p100-h-250-g/plunger-serrated/dp/1568268Looks like the same stuff, and not too expensive. Can anyone elaborate on these? And which tip style to choose for which application? They have serrated ones, pointed ones and concave ones.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209558",
"author": "Scott",
"timestamp": "2010-11-08T22:16:37",
"content": "@DavidI’m no expert, but in my experience you use the serrated ones to contact holes, the pointed ones to contact pads, and the concave ones to contact pins.If you use the pointed ones to contact holes, they tend to get stuck. You want a wider tip for that, and I’m guessing the serrations help cut through any surface oxide layer to make better contact.One of my fixtures mates with through-hole DB9s on the board, so it has concave tips to receive the pins.Also, the receptacle that the plunger goes in is probably sold separately. The ones I got in China were all wire-wrap types, and despite having never done it before (and having to buy a tool that’d been on the shelf in the local electronics shop since about 1979) I found that I really like wire wrap for that sort of thing.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.405445
|
||
https://hackaday.com/2010/11/03/rc-bristlebot-shifts-weight-for-steering/
|
RC Bristlebot Shifts Weight For Steering
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"bristlebot",
"rc",
"steering"
] |
This large bristlebot
has no prolem steering itself by shifting its weight. It’s easy enough to watch the video after the break and see how this works. But there’s still the same air of “I can’t believe that actually works” which we experienced with
the original bristlebot
.
This is not the first
attempt to calm a bristlebots movements
, but we don’t remember seeing one you could drive around like an RC car. [Glajten] up-sized the bot with what appears to be a small shop broom cut in half, creating a
catamaran
design. The vibrating motor, which might have come out of a gaming controller, rides on the back of the bot, centered between the two bristle platforms. On the front a servo motor holds the shaft of a long bolt which has extra weight at the end of it. Steering happens when the weight is offset by a turn of the servo.
[youtube=http://
http://www.youtube.com/watch?v=TL_88papBLg%5D
[Thanks Bret via
SaskView
]
| 39
| 38
|
[
{
"comment_id": "207294",
"author": "Fetret",
"timestamp": "2010-11-03T20:20:36",
"content": "First sentence, “prolem”. Other than that cool bot, I love the homemade look (and the fact that it is home made)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207296",
"author": "Earl Jr.",
"timestamp": "2010-11-03T20:22:29",
"content": "Behold, the newest floor cleaning robot! I assume the next video will be a battle to the death between this and a roomba?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207297",
"author": "Erik Johnson",
"timestamp": "2010-11-03T20:26:16",
"content": "Throw some suds down or vinegar water and you’ve got a fun hard floor washer that your kids will be fighting to use!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207298",
"author": "Luke",
"timestamp": "2010-11-03T20:29:03",
"content": "Damn, that thing is really cute. Can a hack be cute?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207317",
"author": "Steve",
"timestamp": "2010-11-03T20:44:31",
"content": "Bad ass.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207318",
"author": "24601",
"timestamp": "2010-11-03T20:49:30",
"content": "OMG, I’m so gonna “borrow” that design, and make me an RC Scrubbing Bubble! ^_^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207328",
"author": "supershwa",
"timestamp": "2010-11-03T21:20:14",
"content": "Pretty cool homemade design, but I doubt it’s very practical. Part of the reason bristle brushes are used is to get that “deep down” scrub that requires some weight behind the brush to get in between cracks and into dirty surfaces.Kind of reminds me of those mechanical toothbrushes — a fun novelty, but not necessary at all. I guess if you have a hard time disciplining your kids (or roommates) into keeping the place clean, this would be an alternative to use as a bribe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207334",
"author": "Spork",
"timestamp": "2010-11-03T21:33:40",
"content": "@supershwaYou missed the point. It’s a super-cheap RC car that doesn’t need wheels/motors on the wheels.@24601That is awesome. Please post it, I would like to “borrow” your design. =D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207338",
"author": "chris",
"timestamp": "2010-11-03T21:53:47",
"content": "i think i can see enough of the design from the video to decide i have enough parts on hand to soon have a vibrating bot zooming across my kitchen floor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207341",
"author": "24601",
"timestamp": "2010-11-03T22:00:53",
"content": "@supershwa: it’s not for cleaning, it’s for fun",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207342",
"author": "Banjohat",
"timestamp": "2010-11-03T22:02:59",
"content": "simply amazing.. I really like the idea and its actually quite fast!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207345",
"author": "@supershwa",
"timestamp": "2010-11-03T22:15:04",
"content": "That’s how toothbrushes work, but if you get yourself an electronic/vibrating toothbrush you’re not supposed to push as much as just let it vibrate the gunk away.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207347",
"author": "The DON",
"timestamp": "2010-11-03T22:24:20",
"content": "I think everyone so far has missed the point of the video.The unusual aspect of the video is that there is a letterbox in the door, yet the stairs seen to the right of the door, clearly go down. this means that the postman has to go upstairs to post any letters.Advanced postman training done right.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207349",
"author": "Spork",
"timestamp": "2010-11-03T22:32:43",
"content": "@The DONThat is a light, not a letterbox. It’s plugged in to the wall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207350",
"author": "Erik Johnson",
"timestamp": "2010-11-03T22:33:27",
"content": "@supershwa As with a toothbrush. But you get an electric/vibrating(“sonic”) toothbrush, you’re not supposed to do the pushing, but simply guide it along and let it vibrate the gunk off.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207354",
"author": "anon",
"timestamp": "2010-11-03T22:58:59",
"content": "anyone want to figure out how big one would have to be to move the space shuttle?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "207420",
"author": "Caleb Kraft",
"timestamp": "2010-11-04T03:53:47",
"content": "@anonActually, there was talk of this being one possible way to move the “space elivator”.",
"parent_id": "207354",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "207359",
"author": "strider_mt2k",
"timestamp": "2010-11-03T23:17:56",
"content": "It’s awesome!Too bad there’s no write-up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207361",
"author": "strider_mt2k",
"timestamp": "2010-11-03T23:21:39",
"content": "Oh I forgot to mention:It works hard, so you don’t have toooooooooo…!(Some classic vocal talent here too, kids…)http://www.youtube.com/watch?v=Oh0OdgjOdDk",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207370",
"author": "24601",
"timestamp": "2010-11-04T00:15:14",
"content": "@strider_mt2k: exactly ^_^ just fit an inverted bowl over the electronics, paint on some eyes and eyebrows, and you’ve got an RC Scrubbing Bubble.@anon: anything like this big enough to move the Shuttle would likely vibrate so much it’d destroy the Shuttle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207373",
"author": "Scott",
"timestamp": "2010-11-04T00:46:06",
"content": "What about a circular broom that spins with a shifting center of gravity. Similar to those big floor waxers that you lift up or down on the handle to get it to move to where you want.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207375",
"author": "WestfW",
"timestamp": "2010-11-04T00:50:21",
"content": "That’s wonderful! I have an immediate desire to encourage the miniaturized infra-red controlled toothbrush based re-implementation!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207383",
"author": "Amos",
"timestamp": "2010-11-04T01:04:32",
"content": "@WestfW: No need for IR, just get a “zipzap”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207409",
"author": "zacdee316",
"timestamp": "2010-11-04T02:32:07",
"content": "I would like to see someone miniaturize this using real toothbrushes.Chances are it won’t happen, but it would be even more bad ass than this one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207414",
"author": "miked",
"timestamp": "2010-11-04T02:58:13",
"content": "Awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207526",
"author": "Underling",
"timestamp": "2010-11-04T06:21:15",
"content": "You could probably miniaturize it using two electromagnets with a mettle swing arm in the middle so when you terned on a magnet it pulled the swing arm to one side. You might have to use a spring to pull the arm back to center.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207564",
"author": "Addidis",
"timestamp": "2010-11-04T08:38:27",
"content": "This is not the first attempt to calm a bristlebots movements, but we don’t remember seeing one you could drive around like an RC car.There is something oddly amusing about watching this thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207565",
"author": "Chris",
"timestamp": "2010-11-04T08:44:35",
"content": "Quite impressive how well this handles for such a simple mechanism!I recall a device that was (falsely) claimed to produce reactionless thrust. There’s a pseudoscience-free description of how it really worked on Wikipedia, the page on Reactionless drive, and the section on Oscillation thruster. The technique described there should give a nice speed boost if anyone is interested in hot rodding their brush-bot.And yes, this ‘bot remind me of a scrubbing bubble too!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207566",
"author": "element_leader",
"timestamp": "2010-11-04T08:46:22",
"content": "I think a higher center of gravity on the weight, like a football player figure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207571",
"author": "strider_mt2k",
"timestamp": "2010-11-04T09:00:29",
"content": "Oscillation…Overthruster?Nuclear?Extortion?-a woman named JOHN??-but in all seriousnessI started thinking about scaling down the steering for toothbrushes and wondered if the steering mechanism from a Zip-Zap or similar micro RC car would work to throw a small weight left and right for a similar effect?It seems to me that a regular gear motor could be used in place of the steering servo in a pinch as well on the large one.Why do these projects made of scrap grab me?(probably because at heart they are simple enough concepts for me to work with in my brain)Hee",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207573",
"author": "strider_mt2k",
"timestamp": "2010-11-04T09:03:30",
"content": "Heck, those micro RC cars have small enough guts to use the whole kit-n-kaboodle for a tiny “Brush Runner”.Yes, I coined it. Right there.“Brush Runner”boom",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207574",
"author": "fhunter",
"timestamp": "2010-11-04T09:05:29",
"content": "Just use two vibrators (both controlled, placed above each of the brush) and you do not need a servo. Cheaper, and easier to build, plus no heavy moving parts :).The design is from late 70’s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207605",
"author": "EdZ",
"timestamp": "2010-11-04T11:20:44",
"content": "@striderAh, a fellow member of the Hong Kong Cavaliers.I wonder how the optimum vibration frequency is linked to bristle stiffness (and probably length). Maybe using very still (carbon fibre?) bristles and ultrasonic piezos you could make tiny bristlebots that move silently. To the human ear, anyway. Multiple bristle ‘pontoons’ with multiple piezos would allow for steering, and a triad of actuators in a ring should allow full holonomic control (assuming bristle actuators are bidirectional/can be made bidirectional).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207607",
"author": "EdZ",
"timestamp": "2010-11-04T11:23:54",
"content": "“very still […] bristles”Very STIFF, I mean.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207609",
"author": "PocketBrain",
"timestamp": "2010-11-04T11:43:54",
"content": "They have evolved. And quickly, too. The singularity is almost upon us!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207634",
"author": "Filespace",
"timestamp": "2010-11-04T14:11:56",
"content": "The vibro motor out of a Nintendo game cube controller works exceptionally well. as it has no external rotating weight an looks wicked cool because of the no moving parts effect the bristle bot has when built with that. and powered off a 9v battery, its quite intense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207798",
"author": "strider_mt2k",
"timestamp": "2010-11-04T22:38:08",
"content": "Being from NJ I tend to style myself more of a Blue Blaze Irregular.;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208135",
"author": "OverK1LL",
"timestamp": "2010-11-05T16:36:42",
"content": "scrubbing bubbles….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1088832",
"author": "ChRistian R. Mante",
"timestamp": "2013-11-01T23:05:17",
"content": "Is there a guide on how to make this?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.545178
|
||
https://hackaday.com/2010/11/03/patching-into-android-music-control/
|
Patching Into Android Music Control
|
Mike Szczys
|
[
"Android Hacks"
] |
[
"android",
"control",
"music",
"nexus one",
"resistor",
"trrs"
] |
Here’s a look at
the TRRS cable
that Android phones use. [Rich Kappmeier] want to control the music player on his Nexus One while driving. It’s not necessarily a safe endeavor if you’re staring at the screen and poking away with one hand while trying to stay in your lane. A little bit of research helped him figure out how the hardware in a headphone controller worked and he decided to incorporate that into a connector cable for the car.
The control signals rely on a specific resistance between the TRRS function ring and ground. Once he worked out the chart above and targeted the correct resistance values he built a rocker switch for Fast Forward and Reverse, as well as a Play/Pause button into the connector cable. You should be able to use this for more than just music control. Take a look at
our Android Development tutorial
and see what else you can come up with.
[Thanks Alastair]
| 26
| 24
|
[
{
"comment_id": "207258",
"author": "Josh",
"timestamp": "2010-11-03T18:08:49",
"content": "Awsome. I’ve been waiting for this!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207263",
"author": "biozz",
"timestamp": "2010-11-03T18:17:48",
"content": "hm … great!is function also mic?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207279",
"author": "cde",
"timestamp": "2010-11-03T19:26:16",
"content": "Not Android, Nexus One. This won’t work on all phones, most likely just htc phones with builtin audio out, if that. The Nexus One has alot of hidden goodies like this, and usb-host, etc.So title is wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207283",
"author": "onaclov2000",
"timestamp": "2010-11-03T19:42:56",
"content": "Crap, I hope this works for the G2, I have been looking for this kind of solution, now I just need to figure out the can bus on my car and I’m golden.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207284",
"author": "Alex Whittemore",
"timestamp": "2010-11-03T19:53:09",
"content": "The iPhone uses basically the same circuit in its headphones, albeit I haven’t checked what resistance values. I’m sure most assumed that, as well as that ring 4 is the mic port as well. But here’s a fun trick: if you insert a normal headset, the phone needs to know that there’s no mic present. It does so by sensing a short from 4 to ground on insertion. Which (on the iphone) is also accomplished by holding the play/pause/skip button. If you hold that button while you plug the headphones in, the mic and buttons are all disabled (ring 4 is disregarded). I have no idea if this works on the nexus one, but I can only assume that it does.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207299",
"author": "Nomad",
"timestamp": "2010-11-03T20:33:43",
"content": "@Alex: yeah i’d bet it works on the Nexus one. That thing also has got to check if theres a mic or not.PS: the last time i “played” around with audio jacks, i wasted 3×2.5mm stereo jacks…don’t want to know, what will happen if i try to build this control for my phone.PPS: doesn’t the Nexus One support at least double-tapping the play/pause-button as a “next-song”-command? At least it works on my HTC Wildfire. The iPhone also supports this, but it is also capable of triple-tapping for previous song.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207335",
"author": "M4CGYV3R",
"timestamp": "2010-11-03T21:38:04",
"content": "I have a Moto Droid and had no idea these things even worked on it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207592",
"author": "darkblackcorner",
"timestamp": "2010-11-04T10:40:37",
"content": "I check out his article on it. He says that it was originally a fix for stuttery music – now I know what’s wrong with my phone! :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207624",
"author": "Toby",
"timestamp": "2010-11-04T12:37:47",
"content": "Hi!Did that in may:http://www.pocketpc.ch/htc-desire-sonstiges/93551-kabelfernbedienung-kopfhoereradapter-selbstgemacht.htmlToby",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207645",
"author": "edude03",
"timestamp": "2010-11-04T14:38:18",
"content": "@Alex WhittemoreI’ve been trying to use my apple in ear headphones (w/ remote) since purchasing the Xperia X10 a few months ago. I tried this trick and it works if I continuously hold the play pause button, letting go of it makes the audio sound like its under water.That said if anyone else has a similar issue, using a right angled 3.5mm adaptor or 3.5mm splitter should resolve it as it grounds the 3&4 pin together. Obviously the buttons won’t work but at least you can salvage the headphones.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207822",
"author": "Whatnot",
"timestamp": "2010-11-04T23:36:45",
"content": "So are you telling me google keeps this stuff a secret? Would not a simple note to google give you the data? Did anybody even try?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207825",
"author": "Dr bob bob",
"timestamp": "2010-11-04T23:47:52",
"content": "Where do people get the 4 conductor 3.5mm jacks? I have a HAM radio that has a 4 conductor for headphones / mic / ptt and I would like to hack something together. The headphone port is also used for programming so I would like to build a programmer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207861",
"author": "Whatnot",
"timestamp": "2010-11-05T02:16:59",
"content": "I got my 4 connections jackplug at a normal electronics parts store, there are quite a few devices that use them and have used them in the past so they must not be that hard to find, although I also know stores that do not have them, but then you might be able to get a cheap item that uses them and just cut it off for your own use.Many cheap radio handsets also come with 4 pin ports for instance, so they might have hands-free headplugs for those available.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207873",
"author": "cde",
"timestamp": "2010-11-05T02:44:45",
"content": "@DrBob, best source would be a dollar store for a video+audio 3rca to 4 conductor cable that you can hack up (Some even have retractable ones).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207936",
"author": "futaris",
"timestamp": "2010-11-05T04:33:38",
"content": "This is the same for the HTC HD2.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208407",
"author": "Santiago",
"timestamp": "2010-11-06T07:02:01",
"content": "I have and aplication can do this, the name is “DroidShuffle”, this aplication run as service at start and can configure everything, check it out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218547",
"author": "atrain",
"timestamp": "2010-11-25T18:47:14",
"content": "Just built this, and I’m loving it! Thanks!I used a 510ohm resistor in place of the 600, and it works fine on my HTC MT3G slide.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "319635",
"author": "Tomaaaaaaaa",
"timestamp": "2011-01-31T16:15:24",
"content": "Would it be possible to wire the microphone into this circuit. Thus making a car handsfree kit and music controller?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "359787",
"author": "RL",
"timestamp": "2011-03-16T10:58:14",
"content": "Hi,You’re giving me something else to try out to solve my problem on connection my N1 to my helmet.http://www.nexusoneforum.net/forum/nexus-one-accessories/11669-help-helmet-handsfree-wiring.htmlBut just in case, do you happen to a have a diagram for connecting two TRRS plug? :DThanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "403062",
"author": "T.v Serials",
"timestamp": "2011-06-08T17:11:49",
"content": "Here’s a look at the TRRS cable that Android phones use. [Rich Kappmeier] want to control the music player on his Nexus One while driving. It’s not necessarily a safe endeavor if you’re staring at the screen and poking away with one hand while trying to stay in your lane. A little bit of research",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "473260",
"author": "serialsking",
"timestamp": "2011-10-06T06:37:41",
"content": "I used a 510ohm resistor in place of the 600, and it works fine on my HTC MT3G slide.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "483339",
"author": "All Hit serials",
"timestamp": "2011-10-18T10:43:55",
"content": "Just built this, and I’m loving it! Thanks!I used a 510ohm resistor in place of the 600, and it works fine on my HTC MT3G slide.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1002353",
"author": "iljo",
"timestamp": "2013-05-08T15:05:49",
"content": "Hi, I know this is quite old, but I built this, instead of 600 ohm i used 620. But the functions are a bit different, instead of next/previous song, it makes volume go up/down.Now I have to test what resistors to use for next/previous song. Also, thanks for this.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1353590",
"author": "Masowai",
"timestamp": "2014-04-16T05:44:11",
"content": "I just built one as well. It doesn’t skip ahead/back. Instead, it changes the volume on my GS3. Maybe it’s because I haven’t added any speakers yet. I just made it super quick on a breadboard.",
"parent_id": "1002353",
"depth": 2,
"replies": [
{
"comment_id": "6188954",
"author": "kuagelo",
"timestamp": "2019-10-22T01:37:20",
"content": "Just in case someone’s still reading this thread: Newer Androids are built to different (but finally standardized) specifications.https://source.android.com/devices/accessories/headset/plug-headset-specIt seems your device is working fine, if you can trigger volume up/down successfully. Just download a “skip track using volume buttons” app and you’ll be good to go.",
"parent_id": "1353590",
"depth": 3,
"replies": []
}
]
}
]
},
{
"comment_id": "1010239",
"author": "Yochay",
"timestamp": "2013-05-30T14:35:36",
"content": "Hi,I have Samsung Galaxy s2. In this phone one click is play/pause, 2 clicks are for next, 3 clicks are for prev. So only one switch is needed.I made this nice hack, without the resistors and switch 2. The problem is that every click produce a terrible “ccrrkkk” noise in the speakers (I think it also damages them).Can you assist? what is wrong?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.469854
|
||
https://hackaday.com/2010/11/03/rgb-stroboscopic-guitar-tuning/
|
RGB Stroboscopic Guitar Tuning
|
Mike Szczys
|
[
"cons"
] |
[
"badge",
"defcon",
"guitar",
"led",
"rgb",
"stroboscopic",
"tuner"
] |
This is [Michael Ossmann’s]
RGB LED stroboscopic guitar tuner
. If his name is familiar that’s because
we mentioned
he’d be giving a talk with [Travis Goodspeed] at ToorCon. But he went to DefCon as well and spent the weekend in his hotel room trying to win the badge hacking contest.
Despite adversity he did get his tuner working. It’s built into a toy guitar that he takes on road trips with him. By adding a row of RGB LEDs between two of the frets he can use the vibration frequency of an in-tune string to flash the three different colors. If the string is not in tune the three colors will dance around but matching it with the LED frequency produces a stable color. He then uses that big yellow button to advance to the next string. See his demonstration after the break.
This is basically a built-in
plectrum tuner
that uses one LED package instead of two.
[youtube=http://www.youtube.com/watch?v=fNx3_yTPCks]
| 15
| 15
|
[
{
"comment_id": "207248",
"author": "Brennan",
"timestamp": "2010-11-03T17:32:31",
"content": "This is pretty sweet, they have existing stroboscopic tuners out there but they’re rather novel. There is one that is in keychain form and only flashes at the frequency of the low E string, which is awesome to keep with you if you’re good at relative string tuning. I like the way he integrated it into the guitar. I think it would be really sweet if manufacturers created little divets for SMD LEDs in one of the upper frets and blended them in flush with the wood so that fret is still playable and the LEDs aren’t noticeable unless turned on. GREAT hack though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207252",
"author": "Ane",
"timestamp": "2010-11-03T17:41:31",
"content": "This is exactly what I wanted to do. Thanks!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207257",
"author": "xeracy",
"timestamp": "2010-11-03T18:05:42",
"content": "would love to see this finished. looks like a little beast.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207259",
"author": "Pavel",
"timestamp": "2010-11-03T18:10:05",
"content": "mike sure plays a mean ukulele, especially during dust storms with draculas lurking around every corner",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207277",
"author": "hooooooooooooooooooorj",
"timestamp": "2010-11-03T19:23:25",
"content": "@Brennan:The fretboard on a guitar is really intended to be serviced at some point in the guitar’s life. Because the frets wear and the fretboard (being wood) can move, it isn’t terribly uncommon for the frets to be removed at some point, the fretboard sanded back to flat (going down the center-line, it will be flat…across the width of the neck, there should be some curve).If the LEDs are flush, that might cause some problems — it might make more sense to embed them into a fret marker (block style, not dots) and have them a bit deeper than usual.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207278",
"author": "Jons",
"timestamp": "2010-11-03T19:25:21",
"content": "Every guitar player should learn how to tune their guitar with a diapason.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207367",
"author": "strider_mt2k",
"timestamp": "2010-11-04T00:00:21",
"content": "Sir, I have NEVER tuned a guitar with diapers on, nor do I intend to.Good day!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207397",
"author": "NatureTM",
"timestamp": "2010-11-04T02:01:59",
"content": "Well that’s pretty cool! It’s a pretty straightforward concept so I might have to try it, but I think I’ll make it a standalone unit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207554",
"author": "Brennan",
"timestamp": "2010-11-04T07:48:20",
"content": "@hooooooooooooooooooorjYes, I actually have about 10 high-end acoustic guitars so I know a bit about the subject. I’ve seen some manufacturers do LED fret dots on electrics (basses mostly).What I meant was actually what you said, where you basically make the LED’s into fret inlays. It wouldn’t be easy…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207611",
"author": "Whatnot",
"timestamp": "2010-11-04T11:48:36",
"content": "Nice idea, but that yellow button.. it ruins the effect by making it seem like a toddler toy, and image is important with music.Not to mention that the button and the hole it’s in will mess up the sound right? There must be a better and more subtle way",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207782",
"author": "Zeno Arrow",
"timestamp": "2010-11-04T21:40:26",
"content": "@Whatnot“Nice idea, but that yellow button.. it ruins the effect by making it seem like a toddler toy, and image is important with music.”What a load of baloney. If you really think image is important with music, you haven’t understood music at all. Music is about sound, do you listen to sound with your eyes?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207784",
"author": "George Johnson",
"timestamp": "2010-11-04T21:48:59",
"content": "I’ve seen several methods fro tuning, and this is brilliant!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207785",
"author": "Niru",
"timestamp": "2010-11-04T21:49:48",
"content": "Yah, way kewl – but you need two rows of these. I’m not actually sure where you want the primaries, but the secondaries, to set intonation, would be at the 12th fret.(wouldn’t the primaries go at the 24th? I don’t know if you want the exact midpoint of the string or near the bridge or nut, to minimize influence of overtones. – *real* luthier geeks please chime-in, this poseur is out of his depth.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207790",
"author": "error404",
"timestamp": "2010-11-04T22:04:15",
"content": "@Whatnot:It’s a toy guitar…it’s not going to sound very good anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207868",
"author": "Whatnot",
"timestamp": "2010-11-05T02:26:37",
"content": "@error404 Maybe but hackaday suggest people to make it for a regular guitar, then at least you need something else to switch.@Zeno Arrow No you listen with your ears, but the eyes of people directed at you bring in the money.Although.. there’s the McGurk effect thought:http://www.youtube.com/watch?v=ypd5txtGdGw#t=0m39s",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.598595
|
||
https://hackaday.com/2010/11/03/normal-connectors-for-apple-studio-display/
|
Normal Connectors For Apple Studio Display
|
Mike Szczys
|
[
"Mac Hacks"
] |
[
"apple display connector",
"dvi",
"lcd",
"monitor",
"studio display"
] |
[Sherry Wu] sent in a link to her
Apple Studio Display hack
. She got her hands on the 17″ display which has a proprietary Apple Display Connector that rolls signals for DVI, USB, and 25V power into one plug. Convenient right? Not if you want to use it on a machine that has standard video connections. No problem, she got out her meter and figured out which wires belong to each signal. After some soldering she now has a DVI connector for the video, and a 24V bench supply is standing in for power until a dedicated unit arrives. No luck so far at getting the USB and hotplug detection to work but she plans to keep going until that’s accomplished.
Looks like
you can pick these displays up refurbished for as low as $75. Might not be a bad addition to your home setup if you’re willing to do some soldering.
| 25
| 24
|
[
{
"comment_id": "207213",
"author": "P",
"timestamp": "2010-11-03T16:09:20",
"content": "nice work with the hack, but she could have simply consulted the internet :)http://pinouts.ru/Video/apple_adc_pinout.shtml",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207226",
"author": "mike",
"timestamp": "2010-11-03T16:29:46",
"content": "I have one of the 17″ models that weigh a ton.I had a g4 that worked with but sold it and now nobody wants the studio display. Listed on freecycle, craigslist, etc. and no one wanted a free studio display.Maybe Ill splice it up and connect to my linux box in the closet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207228",
"author": "Sherry",
"timestamp": "2010-11-03T16:31:23",
"content": "@P: The pinouts.ru sheet doesn’t quite help because I cut off the actual connector instead of soldering the wires from there. Soldering the wires onto there might have been easier, but since this was my first time soldering, I figured that soldering the individual wires together would have been easier. Thanks anyway. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207235",
"author": "biozz",
"timestamp": "2010-11-03T16:42:03",
"content": "considering that apples ADC to DVI connector was $150 retail this is a great hack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207239",
"author": "tz",
"timestamp": "2010-11-03T17:03:51",
"content": "I have two – a 22″ 1600×1200, and a 23″ 1920×1200 and this is a godsend. My old G4 and G5 could drive them, but they are old so aren’t where I would like to use the monitor.Just because the pinout is there doesn’t mean that it is trivial or easy to wire something from it. (the connector itself might prove interesting to find a mate).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207244",
"author": "WarriorRocker",
"timestamp": "2010-11-03T17:18:31",
"content": "Submitted this to hack-a-day months ago..http://forums.bit-tech.net/showthread.php?t=188336Exact same mod with a much cleaner final result",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207262",
"author": "anon",
"timestamp": "2010-11-03T18:17:10",
"content": "@WarriorRockerI prefer sherrys as it’s documentation is much better.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207266",
"author": "biozz",
"timestamp": "2010-11-03T18:20:57",
"content": "@WarriorRockerits a nice hack but its way over complicated for something so simple",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207285",
"author": "Someone",
"timestamp": "2010-11-03T19:53:36",
"content": "Nice hack, but why would you buy things with a non-standard connector just to hack them to work?/not a fan of buying nonstandard proprietary crap just so the company can make an extra buck off of me for rearranging a wire or two.=P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207287",
"author": "emilio",
"timestamp": "2010-11-03T20:04:41",
"content": "ugh, that damn ADC 25V line… if you think replacing a monitor cable is a pain because of it, try hacking together a Power Mac G5 power supply. like, 25V?! really? they couldn’t go with, say, 24V?@Someone: because they’re cheap – and discontinued. whatever money Apple made off that is long gone…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207320",
"author": "Willyshop",
"timestamp": "2010-11-03T20:52:13",
"content": "@Someone HAHAHAHA apple hasn’t sold those for half a decade; misplaced righteous indignation fail!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207327",
"author": "P",
"timestamp": "2010-11-03T21:17:09",
"content": "@Sherrythere’s a trick for that as well!take the connector you cut off (hopefully you didn’t cut it too close), strip some of the wire, and then probe it using the pinout as a referencematch up the colors/thicknesses to the other piece of cable coming out of the monitor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207332",
"author": "Funky Gibbon",
"timestamp": "2010-11-03T21:30:15",
"content": "My Sympathies for having to use Apples in the first place my IBM compatable has Standard connectors so i have no such problems, i also don’t get twirly bananas on the screen at anything more than moving the mouse, unlike Macs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207344",
"author": "Per Jensen",
"timestamp": "2010-11-03T22:05:35",
"content": "Did this mod on my two 23’s years ago, when i buily my first hackintosh. Got the USB working too. The reason that the “adaptor” Apple sells is $150, is that it’s not only an adaptor, it’s also an power supply for the monitor. The reason Apple uses 25 volts is because of the voltage drop along the very long display cable. The electronics inside the monitor is happy with anything over 21 volts. I powered mine from some open frame industrial supplies (24 volts) and it worked fine the time i had it (sold the hack + one of the displays) and bought the iMac 27 instead. The person that said “rearranging a wire or two” is just SO wrong. It’s a completely different plug than DVI, it has more pins and i could go on…. It is genius to get rid of all those extra pesky cables and power supplies. The old Cube + cinema display was the most beautiful system Apple ever made. So simple and clean looking. A single cable to the monitor that carries display data, usb and power. A picture of the mod here:http://kortlink.dk/zapro/8axk",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207418",
"author": "laadeedaa",
"timestamp": "2010-11-04T03:26:47",
"content": "I picked up an apple ADC-DVI power adaptor (the one that used to retail for 100+ used for about 40$.Good idea if one is interested in a project; but the adaptors can be pretty inexpensive these days.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6414381",
"author": "Sjakelien",
"timestamp": "2022-01-14T10:15:28",
"content": "I git one of these ADC-DVI power adaptor for 30 euros. The plan was to connect an Apple Studio Display to my M1 Mac mini. The Mini recognised the monitor, but the (tested working) monitor dis not show any image.Maybe the ADC-DVI power adaptor is broken, but I have no way to check that. Unless I buy another one…",
"parent_id": "207418",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "207620",
"author": "Jason Kunc",
"timestamp": "2010-11-04T12:21:18",
"content": "there is an adapter that does all this work for you.http://www.google.com/search?aq=1&oq=ADC+to+DV&sourceid=chrome&ie=UTF-8&q=adc+to+dvi+adapter",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207637",
"author": "Per Jensen",
"timestamp": "2010-11-04T14:14:56",
"content": "Jason, that adaptor does only pass thru the DVI display information, neither USB, neither power, so it simply won’t work at all. These adaptors is for the CRT monitors Apple made at the time, which have a standard IEC socket in the back for powering off the grid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207654",
"author": "Michael Bradley",
"timestamp": "2010-11-04T15:13:08",
"content": "I like this, his first electronic hack, first time soldering, and a project that he wanted to complete. Congrats on the desire, learning, and follow through.The ADC to the best of my knowledge was pre-dvi, it was apple saying, why do we want to go from digital to analog in the video card, only to convert back to digital in the monitor? So they stayed digital all the way. PC’s came this way with the DVI connector. Also, some dont realize, theat putting a DVI/VGA connector on the card to use an analog cable on an LCD is not a true DVI to VGA, the card outputd digital along with the VGA analog, so the connector is just a pass through.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207728",
"author": "greg",
"timestamp": "2010-11-04T19:14:12",
"content": "How many amps should the power supply be for this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208255",
"author": "Sherry",
"timestamp": "2010-11-05T23:09:19",
"content": "@Michael Bradley: Thanks for your kind words! Except that I’m a girl :)@Greg: The monitor will draw less than 1.5A at 24V, so a 24V/1.5A power supply ($10 on ebay) will be fine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208306",
"author": "Per Jensen",
"timestamp": "2010-11-05T23:39:14",
"content": "I just used some 4 Amps open frame power supplies for mine. You should just be aware, that 1,5 Amps is maybe not enough with the brightness adjusted all the way to the top, then the monitor gets pretty power hungry. When the USB is connected, you can control the brightness from the keyboard or System Preferences (Mac) and in Boot Camp tool (Windows)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210106",
"author": "Sherry",
"timestamp": "2010-11-09T20:20:20",
"content": "Hey guys, here is a follow-up post:http://doesntexistat.blogspot.com/2010/11/apple-display-hack-followup.htmlThanks all for reading and hope you enjoy it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "554014",
"author": "Nick Dellorto",
"timestamp": "2012-01-08T22:44:34",
"content": "Hey can you guys please make a video tutorial on how to do this or something? I just got my 15 inch apple studio display off eBay and I don’t want to accidentally do something wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2143089",
"author": "Asif Raza Pakistan",
"timestamp": "2014-11-16T08:36:09",
"content": "Bull Shit This hack is so simple then sherry present attached direct pin form apple lcd panel strip to dvi-d cableno metter what is the color of dvi-d cable. check these pin with ohm meterapple lcd panel strip have 20 pin pair of three cable and all pair 4 here on the lcd pane strip ( wiht diffrent color)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.661099
|
||
https://hackaday.com/2010/11/03/how-to-program-pics-using-linux/
|
How-to: Program PICs Using Linux
|
Devlin Thyne
|
[
"Linux Hacks",
"Microcontrollers"
] |
[
"linux",
"Microchip PIC",
"pic",
"PIC12F675",
"PIC16F688",
"pic16f887",
"PICkit 2",
"PICStart+",
"SDCC"
] |
Arguably, Microchip’s PIC microcontrollers do not get enough posts here. One of the drawbacks for some of us is that Linux support for PICs is not very well known. The information is out there, but no one has laid out the process of going from writing C code to programming a chip. Written for Linux users that are familiar with microcontrollers, basic circuits, the C programming language, and can read a datasheet, this how-to should get you up and programming a PIC quickly with Linux.
The Compiler:
The
Small Device C Compiler
, sdcc is what will be used to create the .hex file needed to program a PIC. Support for PICs is still growing, and still in beta, so be aware that things outside the code and chips of this article may need some debugging. However, like every other open source project out there, more contributing users will help the project. Best of all, it is free, with ports to Windows and MacOS X, this is a compiler that handles many architectures and devices without the program limit of free versions of for-pay compilers that are limited to Windows. Sdcc is available through various distributions’ package managers including Ubuntu and Fedora.
To install sdcc on Ubuntu:
sudo apt-get install sdcc
To install sdcc on Fedora:
sudo yum install sdcc
The Chips:
Three different PIC chips were used in the writing of this tutorial: the 40 pin
PIC16F887
, the 14 pin
PIC16F688
, and the 8 pin
PIC12F675
. You can follow along with any of these chips as well as other chips.
The Programmer:
We will be using two programmers, Olimex’s PICStart+ compatible
PIC-MCP-USB
programmer, and Microchip’s
PICkit 2
. Both programmers have been tested to work with the three chips used here.
The PICStart+ programmers use the picp program. Most any PICStart+ compatible programmer will work with picp. Easily installed in Ubuntu with:
<pre>sudo apt-get install picp
For Fedora and other distributions may have to download and install it from source. So, in an empty directory of your choosing:
wget http://home.pacbell.net/theposts/picmicro/picp-0.6.8.tar.gz
tar -xzf picp-0.6.8.tar.gz
cd picp-0.6.8
make
sudo make install
The source is on [Jeff Post]’s
Development Tools for PIC programmers
page along with other programming options.
If you will be using the PIC16F887 and picp, you will need to modify your /etc/picp/picdevrc file by adding the following lines:
[16F887]
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
PICSTART
[16F887:def]
20 00 3f ff 3f ff 00 7f
00 7f 3f ff 3f ff 00 ff
00 ff 00 00 00 00 00 00
0D 10 20 00 04 20 07 02
00 00 01 00 00 00 00 00
00 01 22 0f
[16F887:defx]
3f ff 07 00 00 00 00 00
00 00 00 00 00 00 00 00
3f ff 07 00 00 00 00 00
00 00 00 00 00 00 00 00
The above lines are modified parameters for PIC16F886 found in a
post
by [Al Williams]. For chips not already in /etc/picp/picdevrc, additional parameters will need to be added to /etc/picp/picdevrc.
PICkit 2 programmers will work with another program called pk2cmd hosted by Microchip
here
. You will need to install pk2cmd from source. so in a directory of your choosing:
wget http://ww1.microchip.com/downloads/en/DeviceDoc/pk2cmdv1.20LinuxMacSource.tar.gz
tar -xzf pk2cmdv1.20LinuxMacSource.tar.gz
cd pk2cmdv1.20LinuxMacSource
make linux
sudo make install
Note that Microchip touts the PICkit 3 as a replacement for the PICkit 2. It is not a replacement for the PICkit 2 as there are no Linux drivers for the PICkit 3, so do not buy the PICkit 3 thinking it will work in Linux.
There is also another program that claims to work with a range of DIY PIC programmers:
PICPgm
. We have not tried this program or any of the DIY programmers at this point. We know there are other PIC programmers out there, both cheap and expensive, that have not been mentioned. Perhaps a PIC programmer roundup is in need of writing.
The Code:
The code for this how-to is a kind of hello world program using LEDs. The code for this is hosted on Github, you can follow along with the blink.c file for the
PIC16F887
,
PIC16F688
, or
PIC12F675
. Also included are working .hex files. Here is the PIC16F887 code as a reference as we walk through each major operation:
//Simple program to get started programming
//PIC microcontrollers in Linux.
//Written by Devlin Thyne.
//Released to the public domain.
#include "pic/pic16f887.h"
//Use these configuration words:
//0x2ff4 0x3fff
//Set the configuration words:
unsigned int at _CONFIG1 configWord1 = 0x2FF4;
unsigned int at _CONFIG2 configWord2 = 0x3fff;
//To compile:
//sdcc -mpic14 -p16f887 blink.c
//To program the chip using picp:
//Assuming /dev/ttyUSB0 is the serial port.
//Erase the chip:
//picp /dev/ttyUSB0 16f887 -ef
//Write the program:
//picp /dev/ttyUSB0 16f887 -wp blink.hex
//Write the configuration words (optional):
//picp /dev/ttyUSB0 16f887 -wc 0x2ff4 0x3fff
//Doing it all at once: erasing, programming, and reading back config words:
//picp /dev/ttyUSB0 16f887 -ef -wp blink.hex -rc
//To program the chip using pk2cmd:
//pk2cmd -M -PPIC16f887 -Fblink.hex
//Setup variables
unsigned char ucharCount = 0;
unsigned int uintDelayCount = 0;
void main(void)
{
//Set PORTC to all outputs
TRISC = 0x00;
ucharCount = 0;
uintDelayCount = 0;
//Loop forever
while ( 1 )
{
//Delay Loop
while ( uintDelayCount < 10000 )
{
//Increment the loop counter
uintDelayCount++;
}
//Reset delay loop counter
uintDelayCount = 0;
//Increment the count
ucharCount++;
//Display the count on the PORTC pins
PORTC = ucharCount;
}
}
The first line is the #include for the header file of the particular chip you will be using. It tells the compiler which registers are available and where they are located in memory. In most systems, the header files will be in /usr/share/sdcc/include.
Then we setup the configuration word or words fuses. They are only able to be written when the chip is programmed, but we can define them here so we don’t have to manually program them later. The PIC16F887 has the address for the configuration words defined in its header file as _CONFIG1 and _CONFIG2. The PIC16F688 and PIC12F675 do not have the configuration word address defined in their header (we said sdcc was in beta, didn’t we?), so we just use the address of the configuration word: 0x2007. The configuration words are specific to the chip model and application and are described in the chapter “Special Features of the CPU” in each of the respective chips’ datasheets. In the blink.c samples, the configuration word is just a 16bit hexadecimal word, but the word can be made more human readable by ANDing together the configuration options. Check out the chips’ header files for the names of the options.
Next, we setup some global variables, one for the value that will be output on the LEDs and the other for a delay counter.
In the void main(), we set the PORTC tristate register, TRISC to all outputs. The PIC12F675 has only one port, GPIO, and its tristate register is TRISIO. After setting the tristate register, we enter an infinite loop with while(1). Inside that loop is a delay loop so that we can see the LEDs changing. Following the delay loop, the display counter is incremented and then written to PORTC (or GPIO) for display on the LEDs.
Compiling the Code:
Now that we have reviewed the code, it is time to turn it into something a PIC can use. sdcc will take the blink.c file and make a bunch of files. One of these files will be blink.hex which will be what the PIC device programmer will be writing to the PIC. Here’s how:
For the PIC16F887:
sdcc -mpic14 -p16f887 blink.c
For the PIC16F688:
sdcc -mpic14 -p16f688 blink.c
For the PIC12F675:
sdcc -mpic14 -p12f675 blink.c
The -mpic14 option tells sdcc that it will be compiling for the 14-bit instructions of the PIC16 and PIC12 families. The second option is the specific chip that code will be compiled for. The last thing on the line is the file containing the C code that will be compiled.
Programming the Chip:
To program a chip you will take your device programmer and connect the chip you want to load with your program. Unless you are using a socket programmer like the PIC-MCP-USB, you will need to consult the datasheets of the programmer and the chip to be programmed for the proper connection. Once properly connected, you will need to run the program to run the programmer:
For a PICStart+ programmer on /dev/ttyUSB0 programming a PIC16F887 :
picp /dev/ttyUSB0 16f887 -ef -wp blink.hex -rc
For a PICkit 2 programmer programming a PIC16F887:
pk2cmd -M -PPIC16f887 -Fblink.hex
If you are programming another chip, or the PICStart+ programmer is on a port besides /dev/ttyUSB0, you will need to make corresponding changes to the commands.
Note: The code provided for the PIC16F887 disables low-voltage programming. Some of the programmers available but not directly mentioned only perform low-voltage programming. If you have one of these programmers, you will need to change the code so that the low-voltage programming bit in the configuration words allows for low-voltage programming. The low-voltage programming pin on the microcontroller will also need to be pulled low during normal operation.
Wire the Circuit:
The circuit for this project with the code provided is really simple to breadboard. Below are the schematics for the three chips:
Start out by connecting the Vdd pins to a positive voltage source between 4.5 volts and 6 volts and the Vss pin to ground. The 40 pin PIC16F887 and the 14 pin PIC16F688 will both need a pullup resistor on their master clear pin. To any one or all of the PORTC pins (or GPIO pins for the PIC12F675), connect LEDs with current-limiting resistors to ground. Note that pin 4 of the PIC12F675 is only an input and will not light an LED. The current out of any pin of the three chips used is limited to 20mA, so the current-limiting resistors are optional for most cheap jellybean LEDs. What you should see when you power up the circuit are blinking LEDs. The LEDs should be lighting to a binary count.
Your turn!
Now that we have given you a start with programming PICs using Linux, we hope to see more projects using these chips and the tools we have mentioned above. Though this article was written for Linux users, Windows and MacOS X users should be able to use sdcc for their PIC programming needs.
Image information: The Tux logo is by Larry Ewing, Simon Budig, and Anja Gerwinski, via
Wikimedia Commons
. The Microchip logo is a registered trademark of
Microchip Technology Incorporated
.
Development Tools for PIC programmers
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[
{
"comment_id": "207153",
"author": "Squirrel",
"timestamp": "2010-11-03T14:08:46",
"content": "Very nice.I’m liking these tutorials..I think that ARM programming should come next",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207160",
"author": "Mat",
"timestamp": "2010-11-03T14:17:50",
"content": "The latest MPLAB (beta) is cross platform. PC/Mac/Linuxhttp://devupdates.microchip.com/mplab/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207161",
"author": "cantido",
"timestamp": "2010-11-03T14:22:36",
"content": "@SquirrelWhat “ARM”? .. All the different “ARM” vendors have loads of different parts, each vendor has their own in-circuit programming methods,.. if you wrote such a tutorial you would have to choose one brand and probably one of that brands ARM families unless you want to write a million page how-to.Building a tool chain is fairly easy if you have a part that doesn’t have a hardware FPU or anything fancy like that. You can easily google up instructions on how to build binutils, gcc, gdb, newlib etc. Startup code etc.. you’re on your own, hope you like reading datasheets.@AllWhy PIC when you can get decent free tools for AVR? ;) SDCC supports very few of the PIC families AFAIK.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "706489",
"author": "JB",
"timestamp": "2012-07-18T17:12:28",
"content": "“Why PIC when you can get decent free tools for AVR? ;) ”Because you can also get decent free tools for PIC ;)",
"parent_id": "207161",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "207164",
"author": "missing#",
"timestamp": "2010-11-03T14:26:39",
"content": "“Arguably, Microchip’s PIC microcontrollers do not get enough posts here.”Blame the Italians for that.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "626930",
"author": "Joe",
"timestamp": "2012-04-11T21:52:45",
"content": "+1",
"parent_id": "207164",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "207166",
"author": "chango",
"timestamp": "2010-11-03T14:30:04",
"content": "@squirrel With all the talk about ARM there’s not one article on using OpenOCD, especially since it works with the Bus Pirate.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "5586863",
"author": "andy prigge",
"timestamp": "2018-12-11T21:37:21",
"content": "is that obsessive compulsive disorder?",
"parent_id": "207166",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "207169",
"author": "Bob",
"timestamp": "2010-11-03T14:35:09",
"content": "It should be noted that you can compile the compilers for the PIC24, PIC30, and PIC33 on a Linux machine. They are built from GCC, the only downside is you don’t get Microchip’s standard library or the DSP functions. Unfortunatly I have a RealICE in circuit emulator/debugger and am forced to use Windows in Virtualbox, but that works well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207172",
"author": "ftorama",
"timestamp": "2010-11-03T14:43:34",
"content": "@cantidoall the ARM7 i met (Analog Devices, ST and NXP) use the same programming method and this method is serial port. So you don’t need anything but a MAX232-type translater to start working with ARM7.I began to work with a Cortex-M3 from ST and I use my ARM7 programmer before migrating to JTAG that is also available on all models.ARM is a standard and there are not so much differences between models. The compatibility goes even further with Cortex models, where more than the core must be standard between manufacturers.Regarding compilers,it’s very very easy to begin with Code Sourcery g++ lite that is available for free and handles FPUsRegarding AVR, I fully agree ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207173",
"author": "Ivan",
"timestamp": "2010-11-03T14:44:11",
"content": "HI-TECH PIC Compiler is available for Linux. It is the “official” compiler for some families, and works with most PICs. It is not FLOSS, and there are limitations for the unlicensed free-as-in-beer version (regarding code optimization, not a big deal). There is also HI-TIDE, an Eclipse-based IDE for PIC, that runs in Linux, worth to check. I just wish my ICD3 programmer/debugger could be used in Linux. I currently use a virtual machine running Window$ to make it work.http://www.htsoft.com/Regarding ARM, LPCXpresso is an IDE, aslo eclipse-based that works with NXP’s ARM-based LPC microcontrollers. It works in Linux, and has some stupid limitations on the binary size (128KB after registration), probably enough for most Cortex M0/M3 based MCUs.http://ics.nxp.com/lpcxpresso",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207175",
"author": "urmel",
"timestamp": "2010-11-03T14:50:07",
"content": "In the next month Microchip will ship the new MPLAB X based on Netbeans. This will run on Windows, MacOS and Linux (including compiler and debug support).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207176",
"author": "Guto Andreollo",
"timestamp": "2010-11-03T14:50:50",
"content": "These past days have also seen some progress on using a buspirate to program a pic uC (I’ve already personally used one BP to program another bricked one). The BusPirate project is quickly becoming a very good swiss army knife of electric engineers! :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207178",
"author": "sHitler",
"timestamp": "2010-11-03T14:53:44",
"content": "What is so good about PICs that you’d want to use one over an ATtiny or other AVR (or picaxe)?..I thought they died out with the 90’sid like to see a tutorial based on the ARM cortex M0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207180",
"author": "macpod",
"timestamp": "2010-11-03T14:57:18",
"content": "It’s probably worth noting MPLAB X (Microchip’s IDE) runs under OS X 10.5, 10.6, Linux, and Windows.http://devupdates.microchip.com/mplab/Files/installer.htmlI haven’t tried it out personally yet, but it is there…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207181",
"author": "FJ_Sanchez",
"timestamp": "2010-11-03T15:01:05",
"content": "You forget about:– JALv2, a very good compilar using JAL language. Also there is a project called Jallib with a lot of very nice libraries for JALv2:http://www.casadeyork.com/jalv2/– PIC-GCC, a port of gcc to the 8bit family of microchip:https://forja.rediris.es/projects/cls-pic-16f877/– Pinguino project, based on arduino and using sdcc:http://www.hackinglab.org/pinguino/I think that’s enought for starting in linux, but there are even more alternatives.Good luck.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207191",
"author": "Inistec",
"timestamp": "2010-11-03T15:20:49",
"content": "VERY GOOD TUTORIAL! I am a huge fan of the Microchip PIC who has a tremendous dislike for the micro$oft based operating systems.I have had limited success with pickit2 and other online tutorials.I was excited about the new mplabx until I learned that It was discontinuing support for the pickit2.Keep up the good work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207194",
"author": "cantido",
"timestamp": "2010-11-03T15:29:40",
"content": "@ftorama> all the ARM7 i met (Analog Devices, ST and NXP)You can program them via the serial port.. but I’m pretty sure NXP’s serial bootloader isn’t the same as everyone else. The LPC tool I use can write some other ARM7 parts, but there’s no universal tool AFAIK.. and that’s just the ARM7TDMI parts.Settings for different ARM parts differ when using OpenOCD+Your favorite JTAG dongle too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207195",
"author": "Jake",
"timestamp": "2010-11-03T15:30:30",
"content": "I must say, if the main thing keeping you from using a PIC is linux support, you’re an idiot.Imagine that – You work as an engineer. There’s this PIC that would work great for your application, but you choose not to use it for the “linux” reason. The next day, you report this to your project manager.He fires you for being an idiot. Lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207197",
"author": "ftorama",
"timestamp": "2010-11-03T15:33:59",
"content": "@JakeHe would have fired you yet for having chosen a PIC ^^",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207198",
"author": "Digital_Ben",
"timestamp": "2010-11-03T15:34:38",
"content": "Arguably??? PIC Certainly donesn’t get enough posts!And yes, the latest mplabx is, though beta, java-based – cross-platform and is generally a much improve ide!Bring on more PIC posts!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207204",
"author": "darkore",
"timestamp": "2010-11-03T15:51:15",
"content": "@ftorama: ARM might be a standard, but programming the internal flash in an ARM MCU is certainly not. Try using the serial bootloader method with a STR9 or STR7 from ST, or with a AT91SAM from Atmel. Or even with a LM3S from Luminary (now TI).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207205",
"author": "wouter",
"timestamp": "2010-11-03T15:52:47",
"content": "this thing is awesome, but I’m still waiting for part 3 of AVR programming..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207212",
"author": "ftorama",
"timestamp": "2010-11-03T16:06:06",
"content": "@darkoreYou’re right, i focused on the hardware point of view",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207219",
"author": "hpux735",
"timestamp": "2010-11-03T16:11:25",
"content": "I think it’s amazing there’s so much religious zealotry here. I use the AVR and PIC. They’re NOT that different. I have designs based on both…I’m loving that there is a Microchip product for Mac OS coming, though. That’s the one thing that has kept me from using the PIC recently, I just got tired of the virtual machine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207221",
"author": "RoelAdriaans",
"timestamp": "2010-11-03T16:16:12",
"content": "You need to load the OSC callibration data for the 12F675. Use this little snippit:// Load calibration__asmcall 0x3ff \t; Get the cal valuemovwf OSCCAL \t; Calibrate__endasm;",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207227",
"author": "jenningsthecat",
"timestamp": "2010-11-03T16:30:13",
"content": "If you have Win2K or XP install disks, there’s a much easier way to do this. Install VirtualBox, and the Guest Additions, under Linux. (You’ll need the free-as-in-beer version from Oracle, not the community version, because you need the Guest Additions to get USB support working).After that’s done, install the latest MPLab from Microchip. I use this on my Debian system, and its performance is indistinguishable from that of my stock Win2K box.VirtualBox + Micro$oft also gives me the ability to run some critical Windows programs, such as filter design and analysis apps, that have no Linux equivalents.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207230",
"author": "Bob",
"timestamp": "2010-11-03T16:35:36",
"content": "Here is the problem I had with PIC. It is near impossible to figure out exactly what you need to start with as a beginner. PICs, programmers, compilers, programming language, IDE’s…etc. There are just too many options with too little compatibility across the PIC families and too little guidance. This was a good tutorial.If you want to make tutorials for PIC’s, how about one on how to pick the right PIC for your project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207240",
"author": "Erdem U. Altinyurt",
"timestamp": "2010-11-03T17:04:02",
"content": "At old times, there is a WinPic program to flash the chips. Today, linux users could use wxpic program (WinPic clone) for flashing their PIC processors.http://wxpic.free.frIt’s posix compatible.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207243",
"author": "hubert",
"timestamp": "2010-11-03T17:17:09",
"content": "Hi, very nice tutorial, i like it. Until now I used JAL V2http://code.google.com/p/jallib/since it works with Windows and Linux, is free, supports nearly all pic 10,12,18 devices wit libs and is very easy to learn. But now i read this tutorial and will give sdcc a try",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207245",
"author": "hpux735",
"timestamp": "2010-11-03T17:20:09",
"content": "@hubertThanks for the link. I’ve been interested in JAL, but the only pages I could find on it are a decade (or so) old.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207247",
"author": "Tiago",
"timestamp": "2010-11-03T17:30:58",
"content": "Nice “topic” ;)I have one LPCxpresso 1768 board sitting in its packing because I dont have time to study it during the university, but I would love to know about some nice and free gcc compilers, as the arm-gcc is pretty old an as I see the last update is from 2004..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207249",
"author": "Daniel Holth",
"timestamp": "2010-11-03T17:35:11",
"content": "“The current out of any pin of the three chips used is limited to 20mA”Wouldn’t count on it. That note in the datasheet almost always means “it is your responsability to limit the current to 20mA”. My 2c? Buy some resistors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207256",
"author": "steve",
"timestamp": "2010-11-03T17:59:57",
"content": "Well this would’ve been very useful to me a few years ago when I was trying to get started with the pics; I grew frustrated and gave up for this very reason. I ended up going with the avr. they work great with linux, no restrictions and the usb-tinyISP I use to program it was about $20 and ladyada has linux instructions for it’s use right on the site. This looks like a good tutorial, but for me if I’m going to invest the time to learn something new It’d be a more powerful and featureful arm not an about equivilent pic. Same reason you won’t find me driving a chevy truck ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207260",
"author": "Gdogg",
"timestamp": "2010-11-03T18:11:45",
"content": "MSP430, AVR, PIC, and ARM. We need tutorials on all three! You’ve started on AVR, I’m hoping the others come.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207261",
"author": "Urriellu",
"timestamp": "2010-11-03T18:12:51",
"content": "For those using Debian/Ubuntu, you can install pk2cmd (for PICkit 2) much easier from the following repository:http://deb.urriellu.net/And for a longer explanation on how to use it:http://curuxa.org/en/Program_PICs_with_a_PICkit2_using_the_command_line_on_Linux",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207272",
"author": "Mariano Alvira",
"timestamp": "2010-11-03T19:05:45",
"content": "Here is an ARM tutorial for the mc13224v:1). Buy an Econotag (or 2):http://www.redwirellc.com/store/node/12). Build/get an ARM7 toolchain. E.g.:http://mc1322x.devl.org/ubuntu.html3). Get the libmc1322x code:git clone git://git.devl.org/git/malvira/libmc1322x.git4). Build it:make -C libmc1322x/tests5). Plug in the Econotag.6a). Run some code from RAM:mc1322x-load.pl -f rftest-tx_redbee-econotag.bin -c ‘bbmc -l redbee-econotag reset’6b.) Flash your code:mc1322x-load.pl -f flasher_redbee-econotag.bin -s rftest-tx_redbee-econotag.bin -c ‘bbmc -l redbee-econotag reset’6c.) Erase your code because you just flashed it:bbmc -l redbee-econotag erase7) _optional_ Debug with OpenOCD (using the econtag’s on-board ft2232):openocd -f board/redbee-econotag.cfg(see also:http://mc1322x.devl.org/openocd.html)8) Run rftest-rx on the other econtag you bought (you bought two right?) and receive your packets.9) go on from there. write your own wireless apps. Use Contiki (mc13224v is part of the main distro or get the development branch: git://git.devl.org/git/malvira/contiki-mc1322x.git). Use linux the linux 802.15.4 stack. (http://mc1322x.devl.org/linux802154-serialdev.html).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207290",
"author": "Addidis",
"timestamp": "2010-11-03T20:11:08",
"content": "“Arguably, Microchip’s PIC microcontrollers do not get enough posts here.”True story.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207321",
"author": "Addidis",
"timestamp": "2010-11-03T20:54:42",
"content": "“Here is the problem I had with PIC. It is near impossible to figure out exactly what you need to start with as a beginner. PICs, programmers, compilers, programming language, IDE’s…etc. There are just too many options with too little compatibility across the PIC families and too little guidance. This was a good tutorial.”If you want to make some blinky lights and “get a foot in the door” check out the Make it Last build @ make dot com. This approach uses the “buy parts and build it” method.You will need a PICkit 2 or 3. These are ultra affordable programmer / debuggers. 2 offers some tools not currently finished on the 3. But these tools are coming. (logic tool, analyzer , uart tool) Both have programmer to go as of today.There are other options. Rather then buying a breadboard , parts, etc etc etc and then a programmer, there is the “know it works” method.There are various beginner packages including a programmer , board, uchip, IDE, compiler. The honest truth is the IDE, and compilers are FREE either way. Use the free compilers for now, as they are renovating their compiler offerings in the next year. So for the kits , and an idea of when to choose which.Low pin count usb kit with pickit 2.Learn to make usb devices. (included are lessons, guiding you threw making what you know as an FTDI cable, minus the FTDI) This includes a debug chip, and every thing you need to learn MPLAB, the usb stack, your prorammer etc. Pretty steep learning curve.PICkit2 with a board.Non usb chip with lessons. Nice little dev board to get familiar with.PICkit3 with a board.similar to above with a PICkit3.For a start , the kits are more affordable. For ongoing development the build it method is probably cheaper in the long run , but more expensive to start. (programmer , chip, bread board, components etc)As for what compilers and IDE to use, I use Mplab, and the Compiler that Microchip offers for the chip im using. Microchip is in the process of refining their compiler offerings to 1 compiler per chip class. They purchased Hitec and are currently offering for instance C18 , and Hitec for the same class chip. I generally use PIC18’s so I generally use C18 (MCC18). All of them have free options, use them for now.“If you want to make tutorials for PIC’s, how about one on how to pick the right PIC for your project.”That is a really sticky request. What chip you pick is entirely dependent on how efficient you want to be with the project and what you want to do. The best thing you can do is understand there is ALWAYS a more efficient way to do it. You are going to have extra pins. The good news is if you ask in PIC related forum some one is sure to point you to a decent chip to start playing with. For instance:for DIP USB capable (with internal regulator)Check out 18f14k50 (low pin count usb kit)For more pins , but same as above with out a regulatorcheck out 18f26j50For a simpler non usb chip, with tons of pins and a tutorial on MAKE with eeprom internal,check out 18LF25K22At first try to understand how to use it. Not how to engineer the perfect chip for the device. There are tools at microchip dot com to help choose parts after you understand more. It isnt that big of a deal to design something and decide to use a diff chip. The cost difference is pretty small, and porting code from device to device is pretty easy and how I learned .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207322",
"author": "Addidis",
"timestamp": "2010-11-03T20:55:06",
"content": "God that was long winded sorry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207323",
"author": "Chris",
"timestamp": "2010-11-03T20:57:26",
"content": "@sHitler, who said: “What is so good about PICs that you’d want to use one over an ATtiny or other AVR (or picaxe)?”PIC is cheaper than AVR for parts of approximately equal capabilities.PIC has a much larger selection of parts available in DIP packages, if you prefer not to use SMD for either ease of soldering, or ease of part reuse (without the trouble or added expense of SMD adapters).And regardless of what package style you want, chances are you can actually find the exact PIC you want, because they’re better stocked by distributors.If any of the above are important to you, then PIC indeed has an advantage over AVR.I find it a bit ironic that Linux folks, with their supposedly greater technical savvy, tend to choose AVR over PIC *solely* because they can’t figure out or can’t be bothered to learn how to program a PIC under Linux! Use a Windows box, or a virtual machine running Windows if you have to. I’m a Windows man and run Ubuntu in a VM when necessary, it’s just not a big deal. Plus extending trial periods in a VM is easy; need I say more?And I were a project manager for something that would become a mass-produced product, and an engineer told me he was choosing an AVR that costs more and has longer lead times than an equivalent PIC, just because he wanted to program in Linux instead of Windows, he would definitely get the boot!So I’m glad to see this tutorial. And now that Microchip is addressing cross-platform development, it will be interesting to see what happens to the relative popularity of PIC/AVR.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207325",
"author": "Alex Rossie",
"timestamp": "2010-11-03T21:08:42",
"content": "Excellent, also there is a typo in your config bits",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207336",
"author": "Devlin Thyne",
"timestamp": "2010-11-03T21:41:18",
"content": "@Alex, thanks! Figures that I would forget to change the comments. Updating github now..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207337",
"author": "M4CGYV3R",
"timestamp": "2010-11-03T21:42:30",
"content": "“Arguably, Microchip’s PIC microcontrollers do not get enough posts here.”No argument here. I loves me some PIC. Moar pleaz.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207340",
"author": "hmm",
"timestamp": "2010-11-03T22:00:43",
"content": "I never quite understood why people are writing their programs for these types of devices in C given how simple their instruction sets are. I was able to pick up ARM assembly in about a night just reading disassemblies in IDA and Fujitsu FR in about a week (mostly took longer because IDA incorrectly lists operands for add2 and a few other minor problems). Compared to the clusterfuck of trying to do anything meaningful with Intel/AMD SSE/AVR/whatever crap they added while I was writing assembly for these microcontrollers is actually pleasant but I rarely see it mentioned.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207353",
"author": "ritschi",
"timestamp": "2010-11-03T22:41:30",
"content": "What a great moment for this tutorial.I’m starting to pic and I’m waiting for my new programmer usbpicprog.Do you know anything about it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207357",
"author": "James",
"timestamp": "2010-11-03T23:09:20",
"content": "PIC fan here too, definitely under-represented here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207358",
"author": "Tim",
"timestamp": "2010-11-03T23:09:38",
"content": "Nice tutorial. Thanks HaD!@Jake, you’re probably just trolling, but I’ll bite.This tutorial is useful to me at least. I’m not an engineer, and I (like many others) do not run Windows – haven’t since the mid 90s. Windows-only dev tools are therefore a serious show-stopper for me, unless they can be made to work under Wine or something similar. (And that slows things down pretty considerably.) It’s not a religious position, it’s purely practical at this point.Of course if I were an EE I’d have no choice but to pursue PIC regardless of these issues if it happened to be the optimal choice for an application. But fyi this is not an IEEE forum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207360",
"author": "Dan",
"timestamp": "2010-11-03T23:19:33",
"content": "The official Microchip gcc compiler runs just fine in wine. Here is an example makefile that runs gcc under wine:PRG = dspic_oscope\r\nOBJS = main.o uart-multiplex.o adc.o spi.o spi_drivers.o readline.o\r\n\r\nCC = wine pic30-gcc\r\nBIN2HEX = wine pic30-bin2hex\r\n\r\nMCU=33FJ128GP802\r\nC30LIB=\"C:\\Program Files\\Microchip\\MPLAB C30\\lib\"\r\nCFLAGS = -mcpu=$(MCU) -x c -Wall -Os -std=gnu99\r\nLDFLAGS = -mcpu=$(MCU) -Wl,-L$(C30LIB),-Tp$(MCU).gld,--defsym=__MPLAB_BUILD=1,-Map=\"$(PRG).map\"\r\n#,--report-mem\r\n#LIBS = -ldsp-coff\r\nLIBS =\r\n\r\nall: $(PRG).hex\r\n\r\nflash: all\r\n pk2cmd -F$(PRG).hex -M -PF6 -W -R\r\n\r\nclean:\r\n rm -f $(OBJS) $(PRG).cof $(PRG).hex $(PRG).map\r\n\r\n%.hex: %.cof\r\n $(BIN2HEX) $<\r\n\r\n$(PRG).cof: $(OBJS)\r\n $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)\r\n\r\n.c.o:\r\n $(CC) $(CFLAGS) -c $<",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207362",
"author": "nes",
"timestamp": "2010-11-03T23:41:09",
"content": "I’ve got a good reason for choosing PIC over AVR: You can sample or order pretty much any device they made in the last 20 years direct from the factory with a credit card at list price. With AVR I have no idea whether the part I designed for will be available next year or will have been replaced with a ‘compatible’ device which will still require me to pore over an app note describing the migration path and force me to resurrect the tool chain I used.Oh, and I think on balance PIC’s peripherals have the edge. I do tend to use AVR more for hobby projects though because of the free tool chain.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207396",
"author": "Mikey",
"timestamp": "2010-11-04T02:01:08",
"content": "I’m sure most people will agree with me here, but for microchip to actually gain any momentum, they’ll need to put in the ‘external memory bus’ (something people have been arguing for, for a LONG time. Microchip just seems to want to fight this idea for some reason. I mean hay!… Why go with a 32 bit pic when your really not getting any thing at all from what’s already been a part of their line for a while now>???? It just seems like a white elephant to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207407",
"author": "therian",
"timestamp": "2010-11-04T02:18:31",
"content": "“Here is the problem I had with PIC. It is near impossible to figure out exactly what you need to start with as a beginner. PICs”A book will be a good start",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207419",
"author": "Daniel",
"timestamp": "2010-11-04T03:47:43",
"content": "I’ve only been using microcontrollers for a few years now, but from what I’ve seen PICs and AVRs seem pretty similar. I just personally use PICs because that’s what the professor who started me on them knew. And so when he taught at school, everyone learned PICs and I helped run labs that use them, so I use PICS. But I have a friend who loves using AVRs; so it seems to me like a lot of it is what you start with. Personally I’m extremely glad to have seen this article, if just to realize Microchip is making a linux version of MPLAB. One of the partitions of my machine was Windows just because of programs like this, where it’s much easier to use them in Windows then to figure out the intricacies of getting them to consistently work in Linux.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.832855
|
||
https://hackaday.com/2010/11/02/robot-bicep-curl-accompanied-by-too-much-fanfare/
|
Robot Bicep Curl Accompanied By Too Much Fanfare
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"arm",
"dumbbell",
"marketing",
"mecanum",
"tap light"
] |
So this is
the world’s strongest robot arm
. Great… no really, that’s wonderful. We think lifting a 1000 kilogram dumbbell is a good way to show it off to the public. But with great power came the world’s most over-the top marketing. Well, maybe not as bad as the
shake weight
but it’s getting there. In the video after the break you’ll see that there is plenty of adrenaline-pumping music and they’ve hired an acrobat to pull a sheet off of the thing. We’ve pointed her out in the image above. [Caleb] noticed that they seem to have programmed in human kinetic to make it bounce and strain as a human lifting a heavy load would. And then there’s the fog machine. Classic. We also enjoy the use of a tap light (
which we’ve seen around here before
) to activate the demo.
But now we’re getting carried away. The article linked at the top covers a new development for the arm; a motorized base that can move it around. Looks like the base, which uses
mecanum wheels
, just slips under a stationary frame for the robot and lifts enough to truck it around.
[youtube=http://www.youtube.com/watch?v=LcZJA3XyVjQ]
| 43
| 43
|
[
{
"comment_id": "206817",
"author": "anon",
"timestamp": "2010-11-02T20:35:05",
"content": "Well the marketing is clearly working….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206818",
"author": "Jef",
"timestamp": "2010-11-02T20:37:39",
"content": "So what’s the big deal here? “Robot arm lifts 1000kg.” Ever seen a truck factory? It’s full of those things, except they are performing useful activities. Making the robot arm jack off the company’s marketing director would have been more appropriate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206822",
"author": "hak8or",
"timestamp": "2010-11-02T20:51:04",
"content": "That is so fucking epic",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206824",
"author": "Necromant",
"timestamp": "2010-11-02T20:56:47",
"content": "And working for chinese servo suppliers…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206825",
"author": "Brock_Lee",
"timestamp": "2010-11-02T21:08:23",
"content": "Cirque Du Servobot….I apologize.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206829",
"author": "Hirudinea",
"timestamp": "2010-11-02T21:11:49",
"content": "And all without steroids. (At least for the robot.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206845",
"author": "Anonymous",
"timestamp": "2010-11-02T22:14:17",
"content": "What is this; CritiqueADay?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206847",
"author": "M4CGYV3R",
"timestamp": "2010-11-02T22:21:31",
"content": "@Hirudinea:I slipped him a boost converter backstage. Don’t tell anyone…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206849",
"author": "Anon",
"timestamp": "2010-11-02T22:25:22",
"content": "Welcome to corporate fanfare. You should see the lengths private companies will go to impress the defense sector. Would almost be cheaper to bribe us. (joking)@HirudineaAre you sure? I heard the arm refused consent to have it’s hydraulic fluids tested.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206851",
"author": "Colecago",
"timestamp": "2010-11-02T22:35:09",
"content": "Tap light, are you serious. I bet it wasn’t even hooked up underneath, probably someone controlling it behind the scenes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206857",
"author": "Travis",
"timestamp": "2010-11-02T23:22:08",
"content": "Incidentally, this was originally covered byHizook.com(see BotJunkie “via”). If you’re into advanced robotics, check us out. ;-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206861",
"author": "greenyooper",
"timestamp": "2010-11-02T23:32:57",
"content": "Oh my word… what was that mini-me arm doing? At the end they couldn’t even turn at the same rate, so it had to do a little arm dance so it didn’t sit there looking stupid…utterly ridiculous.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206869",
"author": "Whatnot",
"timestamp": "2010-11-03T00:09:38",
"content": "Hey it’s not all overkill, the ‘start button’ is a cheap chinese battery-cupboard lamp on a table, probably not even rigged to start the thing really :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206880",
"author": "Bob",
"timestamp": "2010-11-03T00:20:31",
"content": "Did anybody else secretly hope the thing would topple over onto the crowd?….No? Just me? Ok.You can make it strong, but is it engineered well? That you can only figure out after it has been in the field for a while.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206888",
"author": "Valen",
"timestamp": "2010-11-03T00:57:28",
"content": "The motion it uses to pick the weight up looks to be them demonstrating each segment of the arm can lift the weight through its entire range, picking it up over that entire range is pretty nifty.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206896",
"author": "Hamtaro",
"timestamp": "2010-11-03T01:35:01",
"content": "The only thing left is for robots to compete in the Olympics. I’m betting humans are just scared to let robots compete.Did anyone else find the wheels the robot is mounted on to be more interesting?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206977",
"author": "pRoFlT",
"timestamp": "2010-11-03T03:52:33",
"content": "So no one noticed what the “REALLY?” was pointing at?Looks like that hot chick in the background is topless! Or at least thats what the arrow is pointing at when i look at the picture ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207000",
"author": "Pogyhauler",
"timestamp": "2010-11-03T04:03:38",
"content": "Had it reached out to its full extension,grabbed a free weight, lifted it on the outside arc, and put it down someplace else, I mighta been impressed. especially if the target site saw no compression.Meanwhile, any decent backhoe built in the last 30 years can do the same thing.A semi-portable backhoe, and a battery powered closet light. They probably spent more on the Buffet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207005",
"author": "jaded",
"timestamp": "2010-11-03T04:43:36",
"content": "The reason this was a big deal (and not just a fancy backhoe demo) is that this robot is capable of repeatably placing that 1000 kg load to within 0.1 mm, or .004 inches. That makes it suitable for use in automotive factories where it can pick and place an entire car body by itself, and does not require two coordinated arms to share the load.With that kind of accuracy, it could place a truck engine directly in the motor mounts without requiring alignment pins or tools. Instead of taking a guy a minute with a chain and hoist, this robot could place it in seconds, all lined up for final assembly.And I don’t know nuthin’ about the fancy tractors you use, but my father-in-law’s backhoe has an accuracy of about three inches (if we remember to top off the reservoir,) and shakes about eight inches when you suddenly stop the arm from moving. (Yes, it’s a 40 year old piece of junk. The valve spools leak something awful, and it operates it’s like it has a hydraulic form of Parkinson’s disease.) It’s good enough for loading field stone into a truck, or digging dirt when you don’t care too much about the shape of the hole.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207010",
"author": "biozz",
"timestamp": "2010-11-03T05:24:34",
"content": "i love how he used one of thoes push on-push off lights i have in my closet as a fake button XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207017",
"author": "pRtkL xLr8r",
"timestamp": "2010-11-03T05:48:10",
"content": "Yeah from the looks of the video, she looks topless…tho I’m not sure since most of the guys are still just staring at the stupid robot…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207069",
"author": "strider_mt2k",
"timestamp": "2010-11-03T09:09:23",
"content": "Topless?Robots?Man I have to get into one of these parties…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207122",
"author": "Saragon",
"timestamp": "2010-11-03T11:17:29",
"content": "@Jaded – The grading company my wife works at has several people who can get about half an inch accuracy with a backhoe and other equipment.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207125",
"author": "fartface",
"timestamp": "2010-11-03T11:42:49",
"content": "Notes:Car body is FAR LESS than 1000Kilos.This thing can pick and lift Semi Truck Engines with transmissions and full drive trains attached.The vehicle body is one of the LIGHTEST major parts of the car. Maybe if you guys knew what you were talking about you would make more sense…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207129",
"author": "Pouncer",
"timestamp": "2010-11-03T12:06:28",
"content": "Shake weight….should be called “fap weight”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207130",
"author": "mccoywm",
"timestamp": "2010-11-03T12:06:58",
"content": "Why must everything interesting be immediately flamed? I work with industrial robots and they are amazing machines. The precision and speed they are capable of is outstanding. Yes they’re things that can lift more, heck if you wanted you could get a few guys and a pulley system, but not with the repeatability of such a machine.And yes all of this is over the top, but it has to be. We recently had our open house and we had robots doing demonstrations that were flashier than what they had to be, but it is what gets the customers looking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207143",
"author": "DrDoug",
"timestamp": "2010-11-03T13:10:54",
"content": "where’s the *video with fanfare* link? i don’t see it. am i missing something?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207146",
"author": "echo5-7",
"timestamp": "2010-11-03T13:18:11",
"content": "it was a try (and success) to get the world record for those arms. thats why there was so much glam.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207149",
"author": "medix",
"timestamp": "2010-11-03T13:32:45",
"content": "I’ll bet tuning this thing with a 1000kg payload for that kind of accuracy was a bitch.I’m a bit more impressed now that I know the specs. Those have to be some killer harmonic drives in the joints..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207162",
"author": "Mike",
"timestamp": "2010-11-03T14:24:03",
"content": "Why would anyone complain about scantily clad hot chicks? Everything is better with hot chicks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207182",
"author": "pascal",
"timestamp": "2010-11-03T15:05:11",
"content": "That’s the video in case somebody still hasn’t seen it:http://www.youtube.com/watch?v=VO-HiiS9LRkShe is definitely not topless, the dancers (doing The Robot, of course) just have very well fitting orange suits (and a Kuka logo on their chest).The “fanfare” played when the robot successfully lifts the weight is the theme music of the German show “Wetten Dass?!” (where people do crazy things and guests bet for or against them.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207183",
"author": "Jeff",
"timestamp": "2010-11-03T15:05:40",
"content": "At the IMTS show a couple of years ago in Chicago Fanuc was showing an arm lifting a 2000lb frame with 8 robots synchronized to follow seams on the frame as if to model welding. I don’t see anything special about this, except the mecanum wheels, and the topless women.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207193",
"author": "biozz",
"timestamp": "2010-11-03T15:26:30",
"content": "@Jeff1 is 1/8th of 8 if you did not already know thatone robot lifting 2 times the weight of 8 is quite a taskkeep in mind 1000kg is a ton … well 1.1 tons thats basically a car engine and all",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207196",
"author": "Olivier",
"timestamp": "2010-11-03T15:32:13",
"content": "@pRoFlT: we just know how to read, and in the article there’s: “… they’ve hired an acrobat to pull a sheet off of the thing. We’ve pointed her out in the image above.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207220",
"author": "mosheen",
"timestamp": "2010-11-03T16:14:50",
"content": "This KUKA has been out for a while and is very reliable. There are now cantilever machines that can lift more, but at the time, the Titan was bad ass.Try this with your excavator:http://www.youtube.com/watch?v=ge-UyZG4kjY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207225",
"author": "Tachikoma",
"timestamp": "2010-11-03T16:28:52",
"content": "Jesus, what’s missing now is a few lasers and buckets full of MDMA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207242",
"author": "walt",
"timestamp": "2010-11-03T17:12:55",
"content": "hahahaha awesomeness all the way! we need more “over-the top marketing” for sure.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207268",
"author": "Domonoky",
"timestamp": "2010-11-03T18:39:31",
"content": "I work at this company. And surely the PR is good :-)And you can print such robots with a 3d printer, see here:http://ifeelbeta.de/index.php/other-objects/kuka-robots:-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207291",
"author": "pRoFlT",
"timestamp": "2010-11-03T20:15:26",
"content": "@Olivier, looks like the girl your pointing to is not the guy that “…pull a sheet off of the thing…” in the video?And that is some skin tight outfit. I looked for pics of the event online, but couldn’t find any. You would think someone would have a camera there and post online! It was like a year ago…Anyways, dont ruin it for me! i saw what i saw ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207326",
"author": "Paul",
"timestamp": "2010-11-03T21:14:09",
"content": "I still believe that the “robocoaster” is a lot more fun than the “titan”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207382",
"author": "Anonymous",
"timestamp": "2010-11-04T01:04:02",
"content": "Are we really complaining about how a company presented their product? This is supposed to be a site about hacks, not about critiquing industry PR practices. Come on guys.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207608",
"author": "Jason Knight",
"timestamp": "2010-11-04T11:42:48",
"content": "I thought since cantilever cranes qualified as robotic arms, the Liebherr LTM 11200-9.1 was the strongest since it can handle 12 MILLION kilos…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208437",
"author": "Buster",
"timestamp": "2010-11-06T08:57:13",
"content": "@Jason KnightAnyone who told you that a cantilever crane counts as a robotic arm is either an idiot or a liar. Probably both. They’re not. Totally different types of machinery.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.738983
|
||
https://hackaday.com/2010/11/05/avr-programming-03-reading-and-compiling-code/
|
AVR Programming 03: Reading And Compiling Code
|
Mike Szczys
|
[
"Featured",
"how-to",
"Microcontrollers"
] |
[
"AVR",
"bitwise",
"c++",
"code",
"datasheet",
"programmer",
"programming"
] |
In
the last installment
of our tutorial series we built a simple circuit on a breadboard and programmed an ATmega168 to make it run. That proves that you know how to follow directions, but the eureka moments of doing everything yourself are on the way. This time around you will get down and dirty with the datasheet, learning where each line of the sample code came from, and give your recently installed compiler a test drive. We will:
Talk about bitwise operators and how they work when coding for microcontrollers
Discuss C code shorthand
Review the sample code from Part 2 and talk about what each line of code does
Learn to compile code
If this is the first you’ve heard about our AVR Programming series, head back to
Part 1
and start from the beginning. Otherwise, take a deep breath and we’ll being after the break.
Series roadmap:
AVR Programming 01: Introduction
AVR Programming 02: The Hardware
AVR Programming 03: Reading and compiling code
AVR Programming 04: Writing code
Prerequisites
You must know something about C code. The ability to read it is probably good enough, Google can help you with the rest as you learn.
It helps if you have a text editor that includes syntax highlighting. I’m purely a Linux user and I like to use both Kate and Gedit depending on my mood. But I also use nano from the shell quite frequently. This is a tool and your choice is purely personal preference.
Grab
the sample code from part 2
of the series. I’ve embedded it below but you may want it in a separate windows for reference.
Datasheets; the instruction manual for hardware. Grab
the datasheet for the ATmega168
as I’ll be referencing specific pages as examples. Knowing how to look up information in the datasheet and turn it into code will make it easy for you to use any chip in the AVR family.
Bitwise Operators
Even though we’ll be writing code in the C language, we’re quite close to the hardware when programming microcontrollers. Because of this
you must understand bitwise operators
. Not just kind of, not intuitively, you should know them well enough to teach them to someone else without looking it up.
Hands down the best explanation I’ve ever come across is by [Eric Weddington], who also co-authored the makefile that came with my example code. It is also known as
Programming 101.
Read it, know it, love it. But I’ll try to give a quick crash course for those to lazy to read his whole lesson.
Code Symbol
Logic Function
|
OR
&
AND
~
NOT
^
XOR
<<
Shift Left
>>
Shift Right
The list above shows all of the code symbols and their logic operation.
OR – true if either or both bits being compared are 1
AND – true only if both bits being compared are 1
NOT – results in the opposite of a value (~1 = 0, ~0 = 1)
XOR – exclusive OR… true if one bit being compared is 1 but false if neither or both of them are
Shift Left – moves bits left within a binary number. (1<<0 = 0b0001, 1<<4 = 0b1000)
Shift Right – moves bits to the right a desired amount (0b1000>>2 = 0b0010)
We’re going to use Shift Left all the time in our code because it’s a quick way to build a binary number. We’re
always
working in binary numbers made up of eight bits. Those bits are numbered 0-7 because counting always starts with 0 when it comes to microcontrollers. So if you want to set the fifth bit to a logic high (‘1’) you would shift ‘1’ left by 5:
1<<5
This will result in the binary number 0b00100000. If this is child’s play, move to the next section. If not, read [Eric’s] tutorial.
C Code Shorthand
I tend to use shorthand in my code as my hands often hurt from too much typing (as they do now). This saves a bit on the old ibuprofen expenditure for the month by allowing me to type less characters to accomplish the same simple assignments. Here’s a quick table of examples:
Traditional Code
Shorthand Equivalent
value = value + 1;
value += 1;
value = value >> 1;
value >>= 1;
value = value & bitMask;
value &= bitMask;
value = value | bitMask;
value |= bitMask;
PORTD = PORTD ^ (1<<0);
PORTD ^= (1<<0);
So basically, if I am setting a variable by using that same variable as the first
operand
I can just place the
operator
before the equals sign and put the second operand after the equals sign to accomplish the same task without typing the variable name twice. If you understood that sentence you’re doing quite well!
Jump into the sample code
Psuedocode
A good practice when developing code is to write psuedocode. Something that clearly states what you want to do in plain language. This is an outline of the structure that your program will take and it shouldn’t include any specific code, but will be replaced by that code later:
//Setup the clock
//prepare an interrupt every 1 second
//Setup the I/O for the LED
//toggle the LED during each interrupt
This program is so simple that the psuedocode seems unnecessary, but it will keep you focused and help stave off errors on larger projects.
The Actual Code
The main.c from the
Part 2 sample code
is embedded below. Take a minute to match up the parts of the psuedocode above with actual code blocks below.
/*
* Hackaday.com AVR Tutorial firmware
* written by: Mike Szczys (@szczys)
* 10/24/2010
*
* ATmega168
* Blinks one LED conneced to PD0
*
* http://hackaday.com/2010/10/25/avr-programming-02-the-hardware/
*/
#include <avr/io.h>
#include <avr/interrupt.h>
int main(void)
{
//Setup the clock
cli(); //Disable global interrupts
TCCR1B |= 1<<CS11 | 1<<CS10; //Divide by 64
OCR1A = 15624; //Count 15624 cycles for 1 second interrupt
TCCR1B |= 1<<WGM12; //Put Timer/Counter1 in CTC mode
TIMSK1 |= 1<<OCIE1A; //enable timer compare interrupt
sei(); //Enable global interrupts
//Setup the I/O for the LED
DDRD |= (1<<0); //Set PortD Pin0 as an output
PORTD |= (1<<0); //Set PortD Pin0 high to turn on LED
while(1) { } //Loop forever, interrupts do the rest
}
ISR(TIMER1_COMPA_vect) //Interrupt Service Routine
{
PORTD ^= (1<<0); //Use xor to toggle the LED
}
The first few lines are comments for the benefit of human eyes and will not be used by the microcontroller. Comments in C are prefaced by two slashes (//) for single line comments or encased in slash-star (/*) and star-slash (*/) pairs for multiline comments. It’s a good idea to write comments that detail the program, what it does, what hardware it runs on, and any other helpful information. I find that I often reuse code from past projects and a bit of information at the top of the file helps locate what I’m looking for quickly.
The Includes
The next thing you see are the includes:
#include <avr/io.h>
#include <avr/interrupt.h>
Includes tell the compiler that we’re going to be using things from other files. In this case, two files from
AVR Libc
that came with the cross-compiling toolchain we installed in
Part 1
. These are C files that allow us to use human-readable (and rememberable!) code when working with the hardware on the chip. The io.h file rolls header files for all of the supported AVR chips into one. We define what processor we’re using in our makefile, and the appropriate header file is automatically chosen from io.h when we compile our code later in this tutorial.
In our example code I’ve used names like DDRD, PORTD, TCCR1B, OCR1A, TIMSK1, etc. All of these have addresses that are pointed to using the io.h file. This allows us to call pins on the chip by the names like PORTD which are the same across all AVR variants instead of register addresses like 0x0B which has different functions on different chips. Most likely you’ll need to include io.h in every AVR program you use, and doing so makes your code more portable. The interrupt.h file is only needed if you are using interrupts, something we’ll talk about as we look at the next code block
Setting up the clock for use with interrupts
Processors need a clock signal in order to work. AVR chips can use external clocks like a crystal oscillator or a ceramic resonator, but they come from the factory configured to use the internal RC oscillator as the system clock (read more on page 28 of the datasheet). The internal RC oscillator of the ATmega168 runs at approximately 8.0 MHz depending on voltage stability and temperature. It also ships with the DIV8 fuse enabled which divides the clock signal down to 1.0 MHz. For the sample program I wanted an LED to blink between on and off, changing about once a second. Here’s the code block that sets that functionality up:
//Setup the clock
cli(); //Disable global interrupts
TCCR1B |= 1<<CS11 | 1<<CS10; //Divide by 64
OCR1A = 15624; //Count 15624 cycles for 1 second interrupt
TCCR1B |= 1<<WGM12; //Put Timer/Counter1 in CTC mode
TIMSK1 |= 1<<OCIE1A; //enable timer compare interrupt
sei(); //Enable global interrupts
The very first line has something to do with interrupts. An interrupt is a great feature of microprocessors. Basically you tell the chips to watch for a certain condition. When it matches that condition it will stop what it is doing no matter where it is, and run a different set of code called an Interrupt Service Routine (ISR). Because we are about to change some settings having to do with interrupts, we don’t want anything (like an interrupt) to stop us in the middle of this process. I’ve used a command that is available to us because we included interrupt.h at the beginning of our file. The command is
cli();
which disables all interrupts. Once we are done with our settings we
must
remember to enable them again, using the
sei();
command. You can see I’ve done that at the bottom of this code block
Now we want to watch for the passage of 1 second worth of time. The four lines in between these two commands are used to setup a counter to do just that. Because the internal oscillator is running at 1 MHz, or 1 Million cycles per second, we must trigger an interrupt every 1 million cycles. The biggest timer this chip has is 16-bits which can only count from 0 to 65,535. In other words, we don’t have a timer that can count high enough to measure such a large number of cycles.
Fortunately, we have the option to use a divider with our timer, called a prescaler. To do so we look in the datasheet on page 134 to see a chart outlining the clock select. It shows prescaler options which divide the system clock by 1, 8, 64, 256, and 1024. Knowing that we want to count 1,000,000 cycles we can use a bit of math to choose the best prescaler:
1,000,000 / 1 = 1,000,000
1,000,000 / 8 = 125,000
1,000,000 / 64 = 15,625
1,000,000 / 256 = 3,906.25
1,000,000 / 1024 = 976.5625
The math only leaves us with one choice. That’s because using a prescaler of 1 or 8 results in a number of cycles that is larger than
65,536
so our 16-bit timer can’t count high enough. Prescalers of 256 and 1024 give results that are not a whole number. If we don’t use a whole number we introduce an inaccuracy in our timing because we can’t measure a fraction of a cycle. A prescaler of 64 meets both our needs, being a whole number that is smaller than the limits of our 16-bit counter.
How can we set up this prescaler? The datasheet tells all. Looking at “Timer/Counter1 Control Register B” (TCCR1B) which spans pages 133 and 134 we can find the answer. Diagram 15-5 shows a clock settings table. In our case we need to set CS10 and CS11 to ‘1’ on the TCCR1B register. To do this we use an OR operator and Left Shift a ‘1’ to the location of the CS10 and CS11 bits:
TCCR1B |= 1<<CS11 | 1<<CS10;
Because this is our first real bitwise math let’s look at it in depth. First off, we’re only setting two bits on the register so we do not want to use just an equals sign. If I had done that, this command would force all other bits to zero. Instead, I use shorthand code to use the OR operator to compare TCCR1B with a bitmask containing a ‘1’ at the correct location for the CS10 and CS11 bits. Any other bits on the TCCR1B register that are set to ‘1’ will remain so.
I’ve created a bitmask to the right of the |= operator. As I talked about in the includes section, CS10 and CS11 are defined in io.h. But looking at the TCCR1B register we can see that CS10 is on bit 0 and CS11 is on bit 1. If you solved your math problem longhand it would look like this:
1<<CS11 | 1<<CS10;
1<<1 | 1<<0;
0b00000010 | 0b00000001;
0b00000011;
This is the method that you use for setting any bit for any purpose. It really is that simple. Build a bitmask and apply it to a register or variable. Just remember to be careful about preserving data that might already be stored on a register or in a value but using the OR operator during assignment.
Now that we have a divided clock source for the counter, and a target number of 15,625 cycles to watch for thanks to the math above. We can use one of the modes of Timer1, the Clear Timer on Compare Match (CTC), to trigger an interrupt at that exact cycle count. Take a look at page 121 of the datasheet and you will see we need to set OCR1A to our target value. We’ll set it to 15,624, one less than our cycle count because microcontroller timers start counting with the number zero, not one. This time we will use an equal sign because there are no other values stored in this register:
OCR1A = 15624;
I also need to set the timer mode I want to use. Table 15-4 on page 133 has a lot of information on this. As discussed before, I want to use CTC mode so that narrows my choices on this table down to just two. I can choose between those because I know I’m using the value of OCR1A as the largest number the timer should count to, or TOP. The chart tells me to set the WGM12 bit on the TCCR1B register to 1.:
TCCR1B |= 1<<WGM12;
This could have been done at the same time as the timer prescaler because they’re set on the same register. But it’s fine to do it in two steps because I’ve used the OR operator, making sure I’m not changing any of the other bits on this register.
The next step can be a “gotcha” for new developers. Everything is now setup correctly for our timer to trigger an interrupt at the appropriate interval. But if we don’t set the “interrupt enable” flag for that particular event, the interrupt will never happen. Page 136 of the datasheet cryptically discusses the use of the Timer/Counter Output Compare A Match Interrupt Enable. Setting this bit to 1 will enable the CTC interrupt we are planning to use:
TIMSK1 |= 1<<OCIE1A;
Simple right? Do it a few times and it will be. There’s a lot of functionality with the timers on these chips and wading through the register settings is the price you pay for that power. But now we’re ready to go with 1-second interrupts.
Initializing the Input/Output pins
When an AVR chip resets, the pins are all placed in tri-state mode. At the beginning of the program any input and output pins need to be setup for their desired function. Starting on page 73 of the datasheet you can read about using pins as general input and output. There are three registers for each pin that we will generally be concerned with: Data Direction Register (DDR), Port register (PORT) and Pin register (PIN). Each of these will be suffixed with a letter corresponding to which set of pins we are working with. I’ve connected the LED to Port D so I need to work with DDRD, PORTD, and if I was using inputs, PIND.
//Setup the I/O for the LED
DDRD |= (1<<0); //Set PortD Pin0 as an output
PORTD |= (1<<0); //Set PortD Pin0 high to turn on LED
The code above is used to set up an LED. Setting a bit on DDRD to 1 will make the corresponding pin an output. Setting it to zero would make it an input. Here I’ve set up an output because we are driving an LED. Outputs can be turned on or off by setting a 1 or a 0 to the PORT register respectively. So above I’ve used PORTD to turn on bit 0 which corresponds to pin connected to the LED.
If we were using a pin as an input the PORT register would be used to enable or disable an internal pull-up resistor and the PIN register would be used to measure the logic value currently present on that pin. Table 13-1 on page 74 shows the various states of I/O pins, but I’ll cover it more in part 4 of this series.
The Loop
Embedded programs must have an infinite loop that prevents the program from getting to the end and exiting. That’s because if our program exits the chip will just sit there and do nothing (after all, there’d be no program running). In this case I don’t need the loop to do anything since I’ve already set up the hardware and I’m using an interrupt to blink the LED:
while(1) { } //Loop forever, interrupts do the rest
I’ll add functionality to the loop in Part 4 or the series, but for now the ‘while(1)’ loop just traps the program and does nothing else.
Handling the interrupt
Everything is now setup and ready to go, but nothing will happen unless we write code that does something after the interrupt happens. This is called an Interrupt Service Routine (ISR). The rest of the code is halted and this routine is run. It is best to keep this as short as possible, which is easy here because we just need to toggle the LED:
ISR(TIMER1_COMPA_vect) //Interrupt Service Routine
{
PORTD ^= (1<<0); //Use xor to toggle the LED
}
If you look at page 62 of the datasheet you can see that the interrupt source for Timer/Counter1 Compare A match is called “TIMER1 COMPA”. We take this and use it as the input variable for the ISR, replacing spaces with underscores and adding a lower case “vect” at the end. This is how the compiler knows which ISR belongs to different interrupt sources. As for the LED itself, I’ve used the XOR operator and a bitmask. The bitmask ensures that only bit 0 will be changed.
Compiling Code
Before we leave this segment of the tutorial series you should give your compiler a test-drive.
The compiler takes our C code and turns it into a file that can be written to the microcontroller. The ins and outs of a compiler get a bit hairy and this isn’t the time to explain those details. But as you learn to write embedded code you should make an effort to also learn how this code will be interpreted by the compiler. Doing so will prevent a lot of headaches caused by optimization (the compiler trying to streamline your bloated C code) and it will allow you to make the most of your hardware both in terms of programming space, and functionality.
But for now there’s a make file included in
the example source from Part 2
. If you haven’t already, unzip that package and navigate to the ‘src’ directory. There are two files in that directory, main.c and makefile. A makefile is a way to automate the compiling process. This one compiles, links, and programs a C code source file. If you look at the makefile you’ll notice that there are several user settings near the top. You need to setup the microprocessor for which you’ve written code, the name of the source file you’ve written (TARGET = main), the programmer you’re using (from the AVRdude list discussed in Part 2), and the port path for the programmer.
If you type ‘make’ you should be able to compile the example program. Unless you have an AVR Dragon programmer and you’re running Linux you’ll get an error when it tries to program the chip, but it should compile the code and output several extra files:
$ ls -la
total 84
drwxr-xr-x 2 mike mike 4096 2010-11-04 14:20 .
drwxr-xr-x 3 mike mike 4096 2010-11-01 14:55 ..
-rw-r--r-- 1 mike mike 894 2010-10-24 12:34 main.c
-rw-r--r-- 1 mike mike 23 2010-11-04 14:20 main.d
-rw-r--r-- 1 mike mike 13 2010-11-04 14:20 main.eep
-rwxr-xr-x 1 mike mike 7121 2010-11-04 14:20 main.elf
-rw-r--r-- 1 mike mike 750 2010-11-04 14:20 main.hex
-rw-r--r-- 1 mike mike 5224 2010-11-04 14:20 main.lss
-rw-r--r-- 1 mike mike 5171 2010-11-04 14:20 main.lst
-rw-r--r-- 1 mike mike 14464 2010-11-04 14:20 main.map
-rw-r--r-- 1 mike mike 3972 2010-11-04 14:20 main.o
-rw-r--r-- 1 mike mike 1454 2010-11-04 14:20 main.sym
-rw-r--r-- 1 mike mike 10235 2010-10-24 10:44 makefile
‘main.hex’ is the file that you can program onto the microcontroller. This makefile is extremely versatile. You can also see that it output ‘main.eep’ which can be used to program the EEPROM on the chip if your code includes default data stored in the EEPROM. It can also be altered to output an assembler file, or binaries in different formats.
If you’re compiler didn’t spit out this information, there’s something wrong with your toolchain. Use your friend Google to search for any error messages and see if you can’t get things fixed up. Another great exercise would be to modify this file to work with your programmer. If you managed to get AVRdude working in Part 2 of this series, this alteration is as simple as changing the makefile to use those same settings.
Conclusion
That’s it for now. In the next installment of this series I’ll be talking about fuse bits, writing our own code, and I’ll try to touch on many of the different peripheral features of this chip. I’m plan to augment the original circuit with a few more LEDs (so make sure you have at least 8 of them and their matching resistors) along with adding a button for input. Thanks for reading!
Follow Me
@szczys
Resources
Atmel AVR
ATmega168 Datasheet
(PDF)
AVR Libc manual
| 41
| 39
|
[
{
"comment_id": "208256",
"author": "jamieriddles",
"timestamp": "2010-11-05T23:14:25",
"content": "excellent serieskeeps this upits gonna be a while before my brain takes this all in.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208347",
"author": "minimike",
"timestamp": "2010-11-06T01:44:09",
"content": "There are some excellent tutorials on AVRFreaks , a nod goes out to abcminiuser who has a few very well written ones that explain everything in a clear methodical manner.If you see this miniuser write a book mate , it would blow any other avr programming book I’ve read out teh water !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208355",
"author": "Mike Szczys",
"timestamp": "2010-11-06T02:05:00",
"content": "@minimike: I agree. Dean Camera is his real name and he’s got a whole collection of fantastic tuts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208359",
"author": "Tiago",
"timestamp": "2010-11-06T02:15:36",
"content": "I have wrote some nice tutorials for AVR’s too, but its in Portuguese, but I could translate then to english..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208366",
"author": "M4CGYV3R",
"timestamp": "2010-11-06T02:32:45",
"content": "Bit operations are my favorite part about low-level programming – working with individual 1’s and 0’s.“Play me off Keyboard Cat!”<<= 5\"me off Keyboard Cat!\"<<= 5\"f Keyboard Cat!\"<<= 5\"board Cat!\"<<= 5\" Cat!\"<<= 5",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208370",
"author": "hc",
"timestamp": "2010-11-06T02:48:02",
"content": "@M4CGYV3RActually, you’d have to shift it 5*8=40 bits each time because each ASCII char is 8 bits.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208381",
"author": "Akhil",
"timestamp": "2010-11-06T03:52:00",
"content": "Its been a while when you posted the part 2. I thought you would have abandoned the remaining parts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208405",
"author": "smokedasphalt",
"timestamp": "2010-11-06T06:56:11",
"content": "Can I use an atmega8 for this tutorial?I’m new to microcontrollers, so please bear with me :)Also, keep up the good work! This tutorial is fantastic..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208483",
"author": "Tiago",
"timestamp": "2010-11-06T11:28:17",
"content": "Yes, just define that you are using an atmega8 instead of the 328p when compiling and when doing the upload.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208489",
"author": "purgm",
"timestamp": "2010-11-06T11:38:24",
"content": "“But if we set the “interrupt enable” flag for that particular even, the interrupt will never happen.”Am I missing something here ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208496",
"author": "smokedasphalt",
"timestamp": "2010-11-06T12:01:58",
"content": "OK Thanks! :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208497",
"author": "M4CGYV3R",
"timestamp": "2010-11-06T12:04:31",
"content": "@hc Clearly, it was a joke. <<= by itself does nothing without what you want to shift before it anyhow.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208505",
"author": "Mike Szczys",
"timestamp": "2010-11-06T13:08:20",
"content": "@purgm: There’s two typos in that sentence, nice catch. I’ve fixed it above as it should read:But if wedon’tset the “interrupt enable” flag for that particularevent, the interrupt will never happen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208506",
"author": "Mike Szczys",
"timestamp": "2010-11-06T13:11:20",
"content": "@smokedasphalt: Yes, you can use an ATmega8, but not with the HEX file. Change the makefile so that it uses this chip, and make sure all of the Timer/Counter1 settings are the same by looking at the datasheet for that chip. In fact, you should be able to do with for any chip as long as you do the work to make sure time is running as you expected. This is because not all chips ship with a 1.0Mhz system clock (the tiny13 uses a 1.2Mhz clock), not all chips have a 16-bit counter, and the register settings for those timers are different depending on the chip you’re using. Now compile the package and if everything went okay you will have a usable HEX file for the new hardware.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208519",
"author": "Bob",
"timestamp": "2010-11-06T14:43:23",
"content": "Wow, I really love the Arduino system.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208552",
"author": "smokedasphalt",
"timestamp": "2010-11-06T16:39:57",
"content": "@Mike:Well, then I think I’m better off buying a 168 then!Just asked about using the atmega8 because I happen to have a couple with me..Looking forward to part 4!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208564",
"author": "Alex Chamberlain",
"timestamp": "2010-11-06T17:14:07",
"content": "Rather than doing a busy loop, is it possible to put the chip to sleep?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208638",
"author": "DarkFader",
"timestamp": "2010-11-06T20:12:33",
"content": "@Alex: sleep with least impact is this:set_sleep_mode(SLEEP_MODE_IDLE);sleep_mode();Put it somewhere in your main loop.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208663",
"author": "Gdogg",
"timestamp": "2010-11-06T22:12:28",
"content": "You spelled pseudocode wrong consistently.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208969",
"author": "Dr. Bob Bob",
"timestamp": "2010-11-07T16:55:46",
"content": "I liked the tutorial. It gives a good basis. One comment about the main loop section. Depending on your compiler, a lack of main loop may do different things. It is possible that if you forget it the micro will just power itself off after returning from main, but it is also very possible that the compiler will not do any protection and just keep executing arbitrary code that happens to be in flash. If you look at what the microcontroller is doing, it reads some memory, does an action and repeats. There is nothing that guarantees it will stop at the end of main.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209039",
"author": "mangor",
"timestamp": "2010-11-07T19:02:28",
"content": "For a slow blinking LED on an Atmega8 use this code:#include#define F_CPU 16000000UL#includeint main(void){DDRD |= (1 << PD0); // PD0 Output Pinwhile(1) // loop for ever{PORTD |= (1 << PD0); // to activate PD0_delay_ms(63);PORTD &= ~(1 << PD0); // to deactivate PD0_delay_ms(63);}}works for me",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209048",
"author": "iHME",
"timestamp": "2010-11-07T19:10:51",
"content": "Oh why we had to code in assembly in our AVR classes?Even the teacher him self did the software first in C and then ported the code to asm.I’m still pissed abut that.Anyway, nice series.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209492",
"author": "Chris",
"timestamp": "2010-11-08T18:44:26",
"content": "I’m glad this came along – i’ve been waiting (impatiently) for part three and was starting to worry that it wouldn’t show up. Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211711",
"author": "Einomies",
"timestamp": "2010-11-13T03:34:12",
"content": "This is the first time I’ve done anything like this, so I decided to wait for the next tutorial to see how you do buttons and the other stuff.But I grew bored, so in the mean while, I decided to tinker with the setup, set all the 8 portds to output, set the interrupt counter to count to 1, and simply incremented PORTD every time by 1.Then I cut the ground wire going to the LEDs and added a small speaker in between. Now I have a nice synthesizer with light effects, because touching the LED leads to the ground bus generates different sounds.Another funny thing is, that I had to leave the 1k resistors out from the DAPA cable everywhere except on RESET to make it work, which in turn made the AVR run on current from the SCK wire at about 2.7 volts and 2 milliamps every time GND is connected but the battery isn’t, at least according to my cheap multimeter. The LED still glows just a tiny bit, but it keeps on blinking and the whole thing is drawing just about 5 milliWatts.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "211720",
"author": "Einomies",
"timestamp": "2010-11-13T03:41:11",
"content": "I must say, this is like playing with LEGO all over again. I’m tearing other things apart to see if I can find anything I can add to the board to make it do something else :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "294954",
"author": "Abhay",
"timestamp": "2011-01-02T18:51:16",
"content": "hello,i’ve tried the code in part 2 on an ATMEGA8-16PUbut the led connected to PORTD0 blinks at 2Hz if i use the count value of 15624,the blinking changes to 1Hz if i use the count value 65535 ..please tell me the reason for this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "295018",
"author": "Alex Chamberlain",
"timestamp": "2011-01-02T21:08:57",
"content": "Fuse settings?Not an expert, but I think you need to make sure the fuse settings are correct and the code thinks the clock speed is the same as the actual clock speed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "296784",
"author": "Abhay",
"timestamp": "2011-01-05T13:26:02",
"content": "they should be correct because in the make file F_CPU is specified as 1000000 (1MHZ) so dont think thats a problem ,will check it up again",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "356093",
"author": "malikaii",
"timestamp": "2011-03-12T10:41:44",
"content": "I don’t know if anyone who can answer this question has subscribed to the comments for this post, but I have a question.I took Mike’s code and tried to alter it to make my setup blink at 2Hz, just to get a feel for how to alter the frequency using the timers. No matter what I change, it seems that I cannot make the LED blink faster than the 1Hz Mike has set it to. After doing a -e in avrdude, I reloaded my altered .hex and still the frequency doesn’t change. My altered code://Setup the clock to 2Hzcli();\t\t\t//Disable global interruptsTCCR1B |= 1<<CS11 | 1<<CS10;\t//Divide by 64OCR1A = 7812;\t\t\t//Count 7812 cycles for .5 second interrupt (2Hz)TCCR1B |= 1<<WGM12;\t\t//Put Timer/Counter1 in CTC modeTIMSK1 |= 1<<OCIE1A;\t\t//enable timer compare interruptsei();\t\t\t//Enable global interruptsThe 7812 is basically an arbitrary number since I don't quite understand how to work the math to count for half a second. From what I understand, Mike says we use 15k cycles to count 1 second, so I just half-ed that to go for .5 seconds. I imagine all the other stuff should stay the same.Advice?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "659957",
"author": "Bat",
"timestamp": "2012-05-26T06:51:44",
"content": "Thanks very much. I am from Mongolia. Your advice is very effective.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "789866",
"author": "kutchbhi",
"timestamp": "2012-09-19T17:38:08",
"content": "no part 4 ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "943947",
"author": "TacticalNinja",
"timestamp": "2013-01-21T06:45:14",
"content": "The example on the “Shift Left” is somehow incorrect. (1 << 4) should be 0b10000, not 0b1000.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1874591",
"author": "lmn",
"timestamp": "2014-09-23T12:49:10",
"content": "“Psuedocode”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2506254",
"author": "Steve",
"timestamp": "2015-03-31T23:48:25",
"content": "Hey did anyone notice that he talks about “Looking at “Timer/Counter1 Control Register B” (TCCR1B) which spans pages 133 and 134 we can find the answer.” but in the code he uses “ISR(TIMER1_COMPA_vect)” A, not B. Sooo I’m confused. Does this still work?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2506257",
"author": "Steve Cirelli",
"timestamp": "2015-03-31T23:49:09",
"content": "Hey did anyone notice that he talks about “Looking at “Timer/Counter1 Control Register B” (TCCR1B) which spans pages 133 and 134 we can find the answer.” but in the code he uses “ISR(TIMER1_COMPA_vect)” A, not B. Sooo I’m confused. Does this still work?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353443",
"author": "Hritik (@MrHritik)",
"timestamp": "2021-06-02T14:46:38",
"content": "@Steve There’sTIMSK1 |= 1<<OCIE1A;which enables the Timer/Counter1 Output Compare A Match interrupt.You can look this up in the \"15.11.8 TIMSK1 – Timer/Counter1 Interrupt Mask Register\" section of the datasheet.",
"parent_id": "2506257",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "2573050",
"author": "Claudio",
"timestamp": "2015-05-19T10:06:46",
"content": "small typo: 1<<4 = 0b10000",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2740385",
"author": "Pedro Ayala",
"timestamp": "2015-10-04T17:52:41",
"content": "I read it all and now I am very anxious to have it working in my board. The whole tutorial is excellent. It touch the very simple beginning as well as a deep programming issue like timer/counter interrupt with the same clarity and easy. Wow!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6353439",
"author": "Hritik (@MrHritik)",
"timestamp": "2021-06-02T14:34:12",
"content": "My atmega328p came with the CKDIV8 unprogrammed. You can program it via“`avrdude -c usbasp -p atmega328p -U lfuse:w:0x62:m“`",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353533",
"author": "Hritik (@MrHritik)",
"timestamp": "2021-06-02T21:55:26",
"content": "After doing the above, be sure to upload your programs with a lower clock, something likeavrdude -p atmega328p -P usb -c usbasp -U flash:w:main.hex -B 10or you’ll get “Check your wiring” error.",
"parent_id": "6353439",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "8117817",
"author": "Anonymous",
"timestamp": "2025-04-11T16:58:22",
"content": "After Microchip acquired Atmel, datasheets have changed, I think thats why page 136 now explains SPI instead",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,343.324347
|
||
https://hackaday.com/2010/11/05/robot-eyes-look-where-you-do/
|
Robot Eyes Look Where You Do
|
Mike Szczys
|
[
"Video Hacks"
] |
[
"augmented reality",
"eye",
"robot",
"tracking",
"wearable"
] |
This robot eye
can move five times faster than the human eye. It’s capable of being used to follow a human gaze and, as you can see by that coin, it’s small enough to be used in pairs. When used to follow your gaze it needs a custom-made eye tracker. The thought here is that a lot can be learned about a person’s psyche by monitoring what they are focusing on. But we wonder about the
augmented reality
properties of a setup like this.
Imagine a pair of glasses as a heads up display. If this camera knows where you’re looking it can process the items in your gaze and overlay digital information. As with all new technology there are obvious military uses for this, but we’d be more interested in a Flickr pool type collection of people’s real-world experiences. Like subscribing to the locations of that
thumb drive network
in NYC and having the camera/glasses guide you to the nearest installation.
Want to see how fast this thing responds? Check out the video after the break.
[youtube=http://www.youtube.com/watch?v=6hLiQQaUnGM]
[via
Neatorama
]
| 35
| 35
|
[
{
"comment_id": "208197",
"author": "Physics_Dude",
"timestamp": "2010-11-05T20:15:34",
"content": "If I’m not mistaken, that uses the same magnetic technology that your hard drive uses to move the pinheads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208198",
"author": "Xavier",
"timestamp": "2010-11-05T20:16:34",
"content": "This has honestly been my dream for so long.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208200",
"author": "Rodrigo",
"timestamp": "2010-11-05T20:19:42",
"content": "where i can get all about this project to make on for me??",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208206",
"author": "andres",
"timestamp": "2010-11-05T20:27:52",
"content": "good god, imagine a polite little helper bot with insane twitchy eyes. i’m going to have nightmares.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208220",
"author": "rasz",
"timestamp": "2010-11-05T20:48:11",
"content": "the head can be adapted from RC heli, but i wonder what are those actuators? maybe something like CDrom mechanism?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208222",
"author": "blah",
"timestamp": "2010-11-05T20:57:30",
"content": "must be a nice camera to capture stuff moving at that speeds",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208230",
"author": "QuincyMd",
"timestamp": "2010-11-05T21:34:15",
"content": "I like how it’s poking through some white board.Turn the picture upside down and it’s “Ceiling robot is watching you….”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208231",
"author": "noonv",
"timestamp": "2010-11-05T21:40:39",
"content": "eye for Terminator :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208237",
"author": "Willyshop",
"timestamp": "2010-11-05T22:01:46",
"content": "I want to see some video from it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208242",
"author": "Marco",
"timestamp": "2010-11-05T22:21:18",
"content": "Given that it’s from an applied mechanics institute I would expect them to be using custom-made parts, not scavenging old CD-ROM drives.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208248",
"author": "Moe",
"timestamp": "2010-11-05T22:56:02",
"content": "can’t you achieve this with an RC heli swashplate?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208325",
"author": "Tiago",
"timestamp": "2010-11-06T00:20:05",
"content": "I would say that they are using linear actuators, they are using linear encoders and even how the actuator moves points to linear.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208327",
"author": "Joseph Benjamin Weld",
"timestamp": "2010-11-06T00:26:34",
"content": "They need to post another video after they make two then stick them in a doll’s eyesockets.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208333",
"author": "wernicke",
"timestamp": "2010-11-06T00:40:36",
"content": "We could keep guessing that they’re CD or HDD drive actuators or linear actuators, or we could read the article and discover that they are piezo actuators.The only piezo actuators I’ve worked with (other than in ink jet printers) are in ultrasonic welders… and they’ve got nowhere near the stroke that these do. Neat stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208357",
"author": "rasz",
"timestamp": "2010-11-06T02:11:34",
"content": "ah yes, linear actuator, I didnt know the proper name, just that this kind of mechanism is in CDROM drivesshould be fairly easy to replicate with RC Heli swashplate and 3 CDROM mechanismsnow do only find a good use for it … :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208358",
"author": "Tiago",
"timestamp": "2010-11-06T02:14:45",
"content": "I dont know any cdrom that have linear actuators, usually the laser head is moved using a stepper and a worm gear.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208363",
"author": "zzzomb",
"timestamp": "2010-11-06T02:27:42",
"content": "Back to these piezo actuators again. They seem to show alot of promise. The same actuators are used to control parts of dslr lenses. Microscopic xyz table anyone? Unfortunately the article doesnt address the real show stopper when it comes to progress…The motors/drivers are insanely expensive to buy premade. There is also no instructions out in the wild showing how to build one, particularly recipes how to make piezo materials. I wonder if multiple layers cut up flat disk piezo buzzers on top of each other could do the trick. Removing a channel on one of these to divide it up into separately controllable sectors which warp the one disk has worked at a very tiny scale for amateur stm microscopes so I wonder if this idea could extend to linear actuators.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208384",
"author": "Fjr",
"timestamp": "2010-11-06T04:38:17",
"content": "I don’t see any reason for this to have 3 actuators. I mean I guess it’s nice for showcasing mechanics and what things can do. But twisting a camera image doesn’t have any use that I know of.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208385",
"author": "drew",
"timestamp": "2010-11-06T04:38:38",
"content": "zzzomb, that’s what I was afraid of. Piezoelectric actuators are exotic expensive. Couldn’t you use a servo instead, and a pantograph linkage for each of the 3 links instead of the prismatic joints, which need piezoelectric linear actuators to work?I don’t think piezo actuators are something doable by homebrew methods.If you read the link, everyone commenting about RC heli swashplates is right- they even claim that’s where the design idea came from.I would buy one of these right now if I could afford it- I can’t. I would build one if I could afford the only component I can’t make- the actuators- I can’t.This is a quantum leap for people like me who have immediate application for this setup, but frustrating as hell because I have no budget to pay 1000+ $ for the actuators alone, which is a lowball estimate- it’s another one of those items that no one prices on a site, it’s all custom order.Has anyone found the paper that describes the build of this? There is one, from a robotics conference, but I can’t find a copy anywhere.Is there any way this could be done with something in the hobbiest or robotics builder’s budget?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208402",
"author": "Ben",
"timestamp": "2010-11-06T06:20:09",
"content": "Twisting the camera is necessary if you want to mimic human eyes. Look at your eye in the mirror and rotate your head about the axis of your line of sight, you will see that your eye can stay level while your head rotates about it. The range of motion is limited, but you can twist your eyes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208404",
"author": "bob",
"timestamp": "2010-11-06T06:43:54",
"content": "This could be used to solve the perspective problems in 3D visualizations.Put your finger in front of your face. Keep looking at it, but try and pay attention to the scene behind it. It is blurry and out of focus. This gives perspective.Most 3D work is perfectly crisp and clear, layers painted onto each other. Being able to track what the eye is looking at, and adjusting the depth of field of the other parts of the image will be a huge leap in realistic 3D.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208456",
"author": "zeropointmodule",
"timestamp": "2010-11-06T10:02:20",
"content": "muscle wire maybe?as for homemade actuators, one thought i had is to use the BaTiO3 paste in the EL kits mentioned on here to make them.obviously you need to use several layers and get an even coating (sellotape+parts from print head) but it should work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208484",
"author": "Tiago",
"timestamp": "2010-11-06T11:30:07",
"content": "Servos and some linkages would work too, but would be a lot bigger, but if you can cope with the extra size go for it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208639",
"author": "echodelta",
"timestamp": "2010-11-06T20:13:47",
"content": "I have mounted a laser on a head position-er before. The thought then went to tiny camera, a simple affair of epoxy and reusing the ribbon wires. X or one dimension only. Going further, three would keep the simple rotation that is already in the sweet bearings. Direct drive center of motor to center of yoke. Much like pots on a joystick. Zed axis is the whole thing mounted on a third motor. Keep it simple. For sure, one of the best hacks for hard drive head motors. Get ’em while they last. Solid state, no bearings no motors no magnets. All great hack food.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208648",
"author": "Wes",
"timestamp": "2010-11-06T20:42:49",
"content": "“But twisting a camera image doesn’t have any use that I know of.”It would be pretty useful if the vehicle the camera is mounted to were to lean out of the horizontal for any reason — a robot moving over uneven terrain, for example. The camera could twist to keep the image level.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208694",
"author": "Michael Bradley",
"timestamp": "2010-11-07T00:35:33",
"content": "I saw someone ask if this can be done with a heli swash plate.I have adapter one here:http://www.n34d.com/index.php?post/2010/11/06/Laser-scanner-XY%2C-with-a-single-mirror",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208816",
"author": "Whatnot",
"timestamp": "2010-11-07T05:34:28",
"content": "Cute but I’m sure the video output of that camera is nothing but a colorful psychedelic blur.And incidentally don’t the anti-shake optics in modern cameras also move that fast? Not to mention those robot that put parts on PCB’s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208823",
"author": "pRoFlT",
"timestamp": "2010-11-07T06:02:57",
"content": "@wes, I think all you need is gyro and compass mounted to the camera. Then there is no need for rotate on the camera. Just do it in software.Although, with compass and a gyro you could also keep the camera level with the ground.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208914",
"author": "Frits Rincker",
"timestamp": "2010-11-07T12:19:53",
"content": "The augmented relaity question doesn’t even make any sense.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208995",
"author": "Eirinn",
"timestamp": "2010-11-07T17:49:53",
"content": "@blah yeah that was also what i was thinking, can the camera even update that fast? the movement of the “eye” is amazing, but if the camera can’t keep up then the solution is not as well rounded as i’d hoped for.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209474",
"author": "JC",
"timestamp": "2010-11-08T18:02:35",
"content": "What ever is below the white board is much bigger than the coin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209828",
"author": "CutThroughStuffGuy",
"timestamp": "2010-11-09T06:46:18",
"content": "Is this a PZT piezo? That’s wickedly impressive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209829",
"author": "CutThroughStuffGuy",
"timestamp": "2010-11-09T06:48:02",
"content": "Those linear rails aren’t cheap either.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209918",
"author": "Dave",
"timestamp": "2010-11-09T11:38:03",
"content": "Very cool!……Reminds me of Universal Soldier!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210241",
"author": "BlackCow",
"timestamp": "2010-11-10T02:28:44",
"content": "Where can you get camera modules like that? That might be very useful for a project I’ve been thinking of.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,342.93058
|
||
https://hackaday.com/2010/11/05/ai-via-super-mario-evolution/
|
AI Via Super Mario Evolution
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"ai",
"artificial intelligence",
"evolution",
"mario",
"super mario bros"
] |
Can Super Mario teach you to think? That’s the idea behind using a simple version of the
game to teach artificial intelligence
. [Oddball] calls this The Mario Genome and wrote at program that can take on the level with just two controls, right and jump. He gave the script 1000 Marios to run through the level. It then eliminates the 500 least successful and procreates back to 1000 using the 500 most successful. In this way the program completed the level in 1935 generations and completed it in the quickest possible time in 7705 generations. He’s posted the script for download so that you can try it yourself. It’s an interesting exercise we’d love to see applied to more random games, like Ms. Pac-Man.
[via Reddit]
| 25
| 25
|
[
{
"comment_id": "208175",
"author": "brad",
"timestamp": "2010-11-05T19:10:02",
"content": "very neat to try on my machine. i don’t know much about this stuff, but it’s fun to watch all them little marios!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208184",
"author": "Gdogg",
"timestamp": "2010-11-05T19:26:40",
"content": "Was the Mario AI (http://julian.togelius.com/mariocompetition2009/) competition posted? It’s done now, but I think it’s pretty interesting too. You don’t have to use a learning algorithm, obviously, but it’d be a good place to put your effort in learning it.Here’s the 2010 competitionhttp://www.marioai.org/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208189",
"author": "tx",
"timestamp": "2010-11-05T19:41:59",
"content": "re: pacmanThere is no actual AI here and the DSL is all in french, but it’s a start:https://github.com/soundrabbit/pacman",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208203",
"author": "24601",
"timestamp": "2010-11-05T20:26:38",
"content": "It’d be more impressive if they set it to learn to beat the actual game.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208232",
"author": "Nightstar",
"timestamp": "2010-11-05T21:46:00",
"content": "This would be a wild screensaver…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208254",
"author": "Sean.duncan",
"timestamp": "2010-11-05T22:57:09",
"content": "The only winning move is not to play. How about a nice game of chess?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208311",
"author": "NatureTM",
"timestamp": "2010-11-05T23:53:11",
"content": "Has anyone given any thought as to what happens if these super-evolved Super Marios decide that they don’t need us any more?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208338",
"author": "jeditalian",
"timestamp": "2010-11-06T00:59:27",
"content": "@NatureTM- it won’t happen. they will always keep coming back for more shrooms",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208340",
"author": "Julien",
"timestamp": "2010-11-06T01:03:48",
"content": "Technically, this is not Artificial Intelligence, but Genetic Algorithm.Nice one :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208362",
"author": "M4CGYV3R",
"timestamp": "2010-11-06T02:25:28",
"content": "Loves me some neural network AI!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208365",
"author": "eipxen",
"timestamp": "2010-11-06T02:30:41",
"content": "The pac-man thing is sort of being donehttp://www-inst.eecs.berkeley.edu/~cs188/fa10/announcements.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208368",
"author": "bluechip",
"timestamp": "2010-11-06T02:38:50",
"content": "“Technically, this is not Artificial Intelligence, but Genetic Algorithm.”Genetic and evolutionary algorithms are asubsetof the field of artificial intelligence. Sure, they’re more towards the optimization end of the spectrum in comparison with things like dynamic programming, supervised learning, or reinforcement learning, but they’re perfectly valid examples of artificial intelligence nonetheless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208380",
"author": "Scott",
"timestamp": "2010-11-06T03:46:01",
"content": "Using the program he posted mine finished the level at 405 generations. Is that because I just got better random results?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208482",
"author": "yorak",
"timestamp": "2010-11-06T11:07:04",
"content": "Nice little toy. I was wondering why he does not jumpstart the process using initial population of 1000 random Marios? The random Marios seem to be doing much better for the initial 100 or so generations. By using more diverse initial population the recombination and mutations should yield faster optimization of genetic mario movements.@Julien In fact GAs are widely used in many specialized AI tasks to make the AI algorithms adaptive (kind of meta intelligence). GAs are especially useful in tasks where the problem is not well known “black-box”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208545",
"author": "CGross",
"timestamp": "2010-11-06T15:55:24",
"content": "There was a mod way back in Counter-Strike’s hayday that worked just like this. You’d set the AI to run around and learn the map and it’d pick up learning from humans too.Fastest way to have them learn the map was set a few on each side to run around the map with no weapons. I liked to stick them into knife fight mode so they wouldn’t get stuck on each other in no-weapons.So putting this into a 2D non-interactive side scroller is baby farts compared to playable AI in Counter-Strike.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208652",
"author": "KGross",
"timestamp": "2010-11-06T20:43:47",
"content": "@ CGross, you downloaded and ran a mod on Counter-Strike? You’re so cool! That doesn’t smell like baby farts at all compared to writing an algorithm designed to learn optimized level completion limited to only two controls (right and jump).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208901",
"author": "Mansoor",
"timestamp": "2010-11-07T11:00:28",
"content": "Wow! Just can’t believe it! Amazing work! Nice clear!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208935",
"author": "Tomasito",
"timestamp": "2010-11-07T12:53:50",
"content": "24hs straigt on a sempron 2800 with 2gb ram running the app = CRASHeven the keyboard leds stoped working haha.crappy pc i have.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209109",
"author": "raith",
"timestamp": "2010-11-07T20:59:26",
"content": "I think having a human player going at the same time might be an idea to try, see if the AI can learn from people.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209436",
"author": "Gregory Strike",
"timestamp": "2010-11-08T15:28:38",
"content": "I’m curious as to how genetic and evolutionary algorithms could be used in a real-world situation, such as a robot… In real-life you only get one shot in a situation. This type of approach seems to assume you get thousands.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209444",
"author": "raith",
"timestamp": "2010-11-08T15:57:25",
"content": "@Gregory Strike if the robot was able to run simulations of events before trying it then it could work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209448",
"author": "NatureTM",
"timestamp": "2010-11-08T16:02:17",
"content": "@GregoryLet’s say you wanted a robot to solve a maze. You wouldn’t physically put the robot in the maze a million times. Instead, you would model the maze on a computer, apply a genetic algorithm to the maze-solving algorithm, and allow the populations of maze-solvers to run the maze until they evolve a satisfactory performance. Finally, you would implement the computer model’s best-performing solution onto the real robot and hope it can solve the real maze.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209751",
"author": "boole",
"timestamp": "2010-11-09T04:02:30",
"content": "“Genetic and evolutionary algorithms are a subset of the field of artificial intelligence.”Genetic and evolutionary algorithms don’t necessarily involve artificial intelligence, no. As it is now, this program just generates a sequence of key presses",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218813",
"author": "Thomas Wrobel",
"timestamp": "2010-11-26T01:33:59",
"content": "Cool.But I think to start getting really interesting AI’s the level itself should be random each time.So they are learning to read the level and respond to it, rather then just time the jumps.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "219201",
"author": "raith",
"timestamp": "2010-11-26T15:42:37",
"content": "@Thomas Wrobel you could put the same code into a mario fangame called infinate mario, the levels change every time they are played.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,343.204406
|
||
https://hackaday.com/2010/11/05/chest-freezer-temperature-controller/
|
Chest Freezer Temperature Controller
|
Mike Szczys
|
[
"Beer Hacks"
] |
[
"atmega48",
"chest freezer",
"controller",
"ferment",
"temperature"
] |
[Mikey Sklar] finds himself in need of a temperature regulated refrigerator for fermenting foods like yogurt, kimchi, bread, and beer. After some testing he found that by
building his own controller
he can get a chest freezer to outperform an upright refrigerator at this task by 2-to-1.
The controller is based around an ATmega48. It includes a remote temperature sensors which you can see connected to the lower left header in the image above. On the back of the board there’s a relay used to switch the freezer’s power on and off. [Mikey] is selling a kit but the hardware and software for the project are both open source so build it yourself if you have the know-how.
A chest freezer is a great place to store Cornelius kegs… we’ll keep our eyes open for one.
| 11
| 11
|
[
{
"comment_id": "208171",
"author": "JB",
"timestamp": "2010-11-05T18:35:17",
"content": "nice Mikey! Good seeing your project posted here!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208176",
"author": "PanicOpticon",
"timestamp": "2010-11-05T19:13:12",
"content": "Reminds me of this:http://mtbest.net/chest_fridge.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208178",
"author": "pcmofo",
"timestamp": "2010-11-05T19:14:10",
"content": "I made a temp controller for a chest freezer for my kegerator. I made it with all analog components, comparators etc. It was cool and it was like 5-10$ in parts. But it requires a separate power source for the DC.I finally just bought a LOVE temperature controller, and wired it into the chest freezer. Now I have two chest freezers that I can reprogram and also displays the temp, they both run on AC input so you really only need 3 wires, Hot in, hot switched out, and neutral to both power the temp controller and switch on the compressor. Also, these cost about $50, the same price as this is being sold for….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208185",
"author": "Kevin Lura",
"timestamp": "2010-11-05T19:32:27",
"content": "Has this same mod been done several times on Hackaday?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208186",
"author": "Dominic",
"timestamp": "2010-11-05T19:36:43",
"content": "Nice. I was looking into buying a pid temperature controller off of ebay to do sous vide cooking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208204",
"author": "Scott",
"timestamp": "2010-11-05T20:26:45",
"content": "I’d hope that they program a compressor-start delay in to keep the compressor from burning out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208208",
"author": "ss",
"timestamp": "2010-11-05T20:32:32",
"content": "This is very cool. With winter coming it would be awesome to have a controller like this, but with a tweak to open a vent if the air outside is cooler than the room air. That way it would really cut down on the electricity needed. The controller would still be able to kick the fridge on if it got warm out again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208227",
"author": "John",
"timestamp": "2010-11-05T21:19:20",
"content": "I Believe a chest freezer has an advantage of holding temps because the cold air does not escape like an upright does when opening the door.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208679",
"author": "Rectifier",
"timestamp": "2010-11-06T23:04:00",
"content": "Built something like this to keep my corny kegs cold too. Yes, a compressor delay is essential to avoid smoking your freezer (learned the hard way when my freezer kept stalling – fortunately it survived). There’s no need to use outdoor air, as cool as that sounds – chest freezers are extremely efficient, and even more so when running low temp differentials as a fridge.Only problem was, my chest freezer did not like being a fridge – humidity constantly built up in it for some reason and it was always swampy – since I like to keep my beer around 5C, the sides and bottom (submerged in 2″ of water after a month) always grew mold, despite regular applications of bleach. Gross.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208772",
"author": "cgmark",
"timestamp": "2010-11-07T04:00:18",
"content": "I would use the ds1620 chip . It does everything needed on one 8 pin chip, programmable and all you have to add is a relay, transistor to switch the relay and a diode to protect the output. Total about $10 for all the parts.http://www.maxim-ic.com/datasheet/index.mvp/id/2735",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "720076",
"author": "Johnathon",
"timestamp": "2012-07-31T19:08:36",
"content": "I have no hacking experience at all but am getting married in the UK next year in the middle of a field Glastonbury style. I’m trying to find a solution to keep all of the beers and wines cold that doesn’t involve paying for tons of ice.This looks to me as though it would be a great solution so:1) does this sound suitable for my event and is it reliable?2) are there many UK hackers visit this site who may help?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,343.136392
|
||
https://hackaday.com/2010/11/05/making-point-contact-transistors/
|
Making Point Contact Transistors
|
Devlin Thyne
|
[
"classic hacks",
"Misc Hacks",
"Parts"
] |
[
"germanium",
"point contact transistor",
"transitor"
] |
[youtube=http://www.youtube.com/watch?v=vmotkjMSKnI&w=470]
[Jeri Ellsworth] is back at it again. We seem to cover her work
a lot here
. Her latest video above covers how she created a point contact transistor from a 1N34 germanium cat whisker diode. After opening the glass casing on the diode, she uses sharpened phosphor bronze metal from common electrical connectors as the collector and emitter. A 330 microfarad capacitor charged to 20 volts and then discharged though a 680 ohm resistor to the base and collector leads forms the collector region. Her test jig is a simple oscillator circuit such that a properly formed transistor will start the circuit oscillating and make and audible sound. We look forward to more esoteric knowledge of electronic devices being brought to our attention.
| 15
| 15
|
[
{
"comment_id": "208143",
"author": "biozz",
"timestamp": "2010-11-05T17:07:02",
"content": "these are like the first type of transistors made right?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208174",
"author": "zerth",
"timestamp": "2010-11-05T19:01:34",
"content": "@biozzYes, the first commercial transistors were made of germanium at AT&T, silicon coming several years later from Texas Instruments.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208190",
"author": "grenadier",
"timestamp": "2010-11-05T19:45:03",
"content": "I’ve done this before and have made an audio amp from one. I’ll have to try this again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208194",
"author": "p knight",
"timestamp": "2010-11-05T19:59:04",
"content": "The queen of nerds. I could sit down with this woman and pick her brains for years. Hot and intelligent. Its like looking in the mirror.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208326",
"author": "therian",
"timestamp": "2010-11-06T00:20:35",
"content": "Unbelievable. It took many moths for Japanese to find under microscope right contacting spot on crystal when they try to back-engineer American invention.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208344",
"author": "Oren Beck",
"timestamp": "2010-11-06T01:33:50",
"content": "Before we had transistors, we had “cat’s whisker” radio diodes. And the commonplace effect of having to probe for a “Hot Spot” on whatever chunk of Galena-or a rusty razor blade, that was being used in your radio.It was explained to me that the serendipity of static charges on longwire antennas frequently making a spark discharge-created an induced “hot spot” of sorts. Which, to forgive the pun, sparked research into replicating the effect. And some of what was discovered, seems to have become either “trade secrets” or just written off as too unstable for production uses.I was told that’s why sloppy process control in some lead bonding methods/spot welding variants can produce rectification effects. With the aforementioned unstable=difficult to produce reliably results.The use of Capacitor Discharge to form a contact zone is a good step towards reproducible hobby built semiconductors,",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208346",
"author": "George Johnson",
"timestamp": "2010-11-06T01:40:05",
"content": "This girl is gonna go far, and I’m really glad to see it to. Just about every other young girl should be looking up to her as a model. No reason they can’t do this too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208356",
"author": "Whatnot",
"timestamp": "2010-11-06T02:09:31",
"content": "She has a way of speaking that sort of makes things seem mysterious, but without the usual laying-it-on that they use for ads for movies and such.I think she might be a person to hire for a mystery/scary movie, or ad for such a movie, she has a bit of the effect that worked so well in ‘signs’.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208383",
"author": "Ugly American",
"timestamp": "2010-11-06T04:26:56",
"content": "These videos would be great for science & electronics teachers.A workshop for teachers would be cool too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208386",
"author": "kristian",
"timestamp": "2010-11-06T04:45:22",
"content": "i move for a new category of hacks in the rarely-used tag list to the right called jeri-hacks (jeri-rigs?). all in favor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208409",
"author": "biozz",
"timestamp": "2010-11-06T07:07:01",
"content": "@zerthwow thanksi have baught tons of diffrent types of transistors in my day from FETs to MOSFETs to BjFETs but never heard of a PCT before XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208434",
"author": "strider_mt2k",
"timestamp": "2010-11-06T08:14:42",
"content": "I haven’t seen her videos before, but I’m really impressed with the explanations and techniques!Wow!Totally makes me want to try this!Folks like this are what make this hobby really great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208454",
"author": "bob",
"timestamp": "2010-11-06T09:59:29",
"content": "go back to the second world war and the POW…..a lump of coal/coke (as in carbonised form not the white powder) can be used as a diode",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208457",
"author": "blue carbuncle",
"timestamp": "2010-11-06T10:03:01",
"content": "Not for me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208458",
"author": "zeropointmodule",
"timestamp": "2010-11-06T10:06:34",
"content": "wonder if this approach would work for SiC crystals?i seem to recall reading somewhere that SiC tunnel diodes are made by adding a small piece of silicon onto the SiC, heating it to 1000C and rapidly cooling to form the molecular thickness tunnel region.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,343.473073
|
||
https://hackaday.com/2010/11/05/racing-sim-cockpit-stores-inside-an-ottoman/
|
Racing Sim Cockpit Stores Inside An Ottoman
|
Mike Szczys
|
[
"home entertainment hacks"
] |
[
"ottoman",
"racing",
"simulator"
] |
[Lyscho] built a racing simulator cockpit based on a PVC frame but it took up a lot of space when not in use.
His second generation
is built inside the frame of an ottoman, meaning it can be stored right under your feet.
The pedals are fixed in place, with some padding below to rest your heels on. The cockpit chair and steering wheel are both adjustable to suit different drivers. They use a routed groove along with wing nuts and bolts, making it easy to slide them for adjustments. The ottoman itself is [Lyscho’s] own creation, which just needs power and USB when in use, and has a padded top when not in use.
If you can’t
use a real car as the simulator
this is fantastic alternative.
[via
Make
]
| 14
| 14
|
[
{
"comment_id": "208122",
"author": "fartface",
"timestamp": "2010-11-05T16:00:04",
"content": "Not wireless?LAME!get wireless power in there!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208128",
"author": "jayson",
"timestamp": "2010-11-05T16:26:56",
"content": "This reminds me of this force feedback version.http://inventgeek.com/Projects/ForceFeedback/Overview.aspx",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208131",
"author": "John O",
"timestamp": "2010-11-05T16:30:36",
"content": "Stickshift on left side?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208134",
"author": "lwatcdr",
"timestamp": "2010-11-05T16:36:15",
"content": "@John O Well all the dimensions are in metric so odds are the builder is from the UK, Australia, New Zealand , Ireland or any other former English colony except the US or Canada. I could be wrong but that would explane it.Or he is a big fan of the MG TC!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208136",
"author": "Jentulman",
"timestamp": "2010-11-05T16:46:33",
"content": "He says he’s an Aussie in a posting further down the page which is why he’s got the gearstick on the ‘right’ side :DI’ve been staring at the box my wheel is in for 2 weeks wondering how best to set it up, and this has got me fired up again. Shame the room isn’t large enough to fit the additional ottoman in.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208142",
"author": "mungewell",
"timestamp": "2010-11-05T17:04:44",
"content": "Cool hack, been thinking about making a cockpit and this might be just the thing.As a bit of self pimping; working hard on speed-dreams (GPL racing sim for Linux/Windows), hopefully release 2.0 will be out before end of year.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208161",
"author": "Eirinn",
"timestamp": "2010-11-05T17:51:42",
"content": "@John or just about any other country than the US.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208165",
"author": "M4CGYV3R",
"timestamp": "2010-11-05T18:20:30",
"content": "That’s not a bad idea for my flight sim controls. I used to use some heavy cardboard for the panels but I’m liking wood for this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208168",
"author": "Mechaman",
"timestamp": "2010-11-05T18:22:47",
"content": "“Though originally most traffic drove on the left worldwide, today about 66.1% of the world’s people live in right-hand traffic countries and 33.9% in left-hand traffic countries. About 72% of the world’s total road distance carries traffic on the right, and 28% on the left.” –WikipediaSo even a quick search yields that it is the worng way, well… the least common way of driving. Most of the world population is also right handed. If you’re right handed, why would you want to gear-shift with your un-coordinated hand?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208195",
"author": "KantPredict",
"timestamp": "2010-11-05T20:06:45",
"content": "@Mechaman Maybe you’d want to be steering with your ‘stronger’ hand while you change gear to retain control of the car more easily.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208226",
"author": "lwatcdr",
"timestamp": "2010-11-05T21:05:30",
"content": "@mechman frankly shifting gears with your left hand isn’t hard. I have lived I am from the states and have driven in Ireland. The gear shift is no problem. The rear view mirror was hell. It was very hard to get used to looking up and the left.The one thing that I wouldn’t like about it is that I would feel like I was sitting in a coffin but that is just me.I would rather have a reversible top but that would be another hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208396",
"author": "MrThayer",
"timestamp": "2010-11-06T05:19:51",
"content": "I find the coffin comment funny because many purpose-built race cars are basically metal tubes with a minimum of padding built-in. An auto body is a waste of weight!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208435",
"author": "strider_mt2k",
"timestamp": "2010-11-06T08:16:14",
"content": "You realize we’re all just trying to get back to playing in the refrigerator box again, don’t you?Sigh…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209532",
"author": "walt",
"timestamp": "2010-11-08T20:49:00",
"content": "good effin idea! nice work!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,343.878687
|
||
https://hackaday.com/2010/11/05/have-you-ever-wanted-to-be-on-internet-tv/
|
Have You Ever Wanted To Be On (Internet) TV?
|
James Munns
|
[
"contests"
] |
[
"badge",
"Independent",
"Inventor",
"Rev3",
"revision3",
"tv"
] |
Are you an independent inventor? It might just be your lucky day. The fine folks at
Independent Inventor TV
, a new show currently filming for Revision3, is looking for home and garage based inventors to present their inventions for the camera. Currently they are based out of San Francisco, CA and are looking to film people in person, or by Skype if you are out of town.
To apply to be on the show, send an email to Independent.Inventor.tv(at)gmail.com with the details, photos, and videos of your inventions. The shooting date of the show is November 15th, so make sure to have all submissions in well before then. The selected inventors will get to meet the hosts, Comedian Jonah Ray, as well as fellow hacker [Joe Grand] (who is the creator of many of the
DefCon Badges
we have
covered before
). Be sure to let them know Hackaday sent you!
| 2
| 2
|
[
{
"comment_id": "208109",
"author": "skater_j10",
"timestamp": "2010-11-05T15:04:28",
"content": "Hey kinda coincidental, but one of my projects was just featured on TV last week on the Daily planet’s “Planetyou”. Check it out:http://tinyurl.com/2vqmlyuThere have been a few other Hackers and makers featured over the past week! Still can’t believe my robot was on TV, a few of my friends actually saw the broadcast and facebooked me about it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208335",
"author": "Joe",
"timestamp": "2010-11-06T00:50:48",
"content": "Yeah, this is going to be a fun day. We’re filming the pilot and we’re not exactly sure how the show is going to turn out, but it will be great to see all the cool stuff people have to show off!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,343.242641
|
||
https://hackaday.com/2010/11/02/lego-ball-mill/
|
LEGO Ball Mill
|
Mike Szczys
|
[
"chemistry hacks"
] |
[
"aluminum powder",
"ball mill",
"lego",
"PVC",
"pyrotechnics"
] |
This is a ball mill
used for refining materials into a fine powder. [Jpoopdog] built it in two parts, a base and the tumbler chamber. The base itself is build using LEGO wheels as rollers. The motor and controller from an NXT kit is used to drive the rotation, with programming to stop the mill every so often so that the raw material can cool down. That’s important because this can be used to make substances like aluminum powder, an explosive substance sometimes used in pyrotechnics. We don’t recommend producing your own explosives (or
making your own propellant
) but if that’s what you’re after [Jpoopdog] did build in a safety feature. The chamber,which is constructed from PVC, has a fail safe to prevent an explosion. A hole has been drilled in the end cap and plugged with hot glue. In the event the milling material starts to overheat the glue will melt and alleviate the built up pressure.
| 21
| 21
|
[
{
"comment_id": "206771",
"author": "hacknet",
"timestamp": "2010-11-02T19:14:34",
"content": "PVC seems very static prone to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206773",
"author": "dwqasw",
"timestamp": "2010-11-02T19:18:07",
"content": "Built something very similar ages ago. Unfortunately I learned pretty soon that the + shaped axis aren’t exactly good for hours and hours of turning without bearing. Not that it made my mill fail (it worked very nicely until I retired it) but after a few days there was visible wear on the lego.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206774",
"author": "macw",
"timestamp": "2010-11-02T19:26:03",
"content": "Wait, so is he concerned about heat or pressure? If the aluminum is set off by heat, a glue ball melting out isn’t going to cool it down. If the stuff is so hot that the temperature is increasing the pressure, then he should be looking at active cooling. If there’s guaranteed to be offgassing of some kind, he needs a gas-permeable vent, not an emergency blowout valve.Just seems like he’s got a mistaken idea of how safe his machine actually is.And yeah, if he’s actually planning to make pyrotechnic chemicals, it seems like he should be taking all the regular precautions like using wooden vessels and brushless motors and so on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206775",
"author": "SkaFreak",
"timestamp": "2010-11-02T19:27:06",
"content": "Yeah, I wouldn’t trust a PVC mill for doing any kind of pyrotechnic work. Way too much likelihood of static buildup/discharge.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206779",
"author": "zing",
"timestamp": "2010-11-02T19:38:40",
"content": "@macwThe glue plug isn’t to cool it down, it is so the chamber goes off like a rocket and not like the ball bearing filled pipe bomb that it is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206783",
"author": "Ryan",
"timestamp": "2010-11-02T19:44:23",
"content": "A lego motor will burn out long before a ball mill does anything useful.On top of that, ball milling in a pvc tube is moronic. I’m not normally a huge stickler for safety but there is a major reason why PVC is never used for pyrotechnics. If something goes off inside the tube a tiny hole isn’t going to stop the pvc from shattering.Gunpowder and aluminum powder aren’t going to slowly pressurize as they gently heat up – they are happily grinding one second and shoving pvc shrapnel into your eyes the next.He seems to completely misunderstand the risks as well. His stupid glue covered hole is useless and won’t prevent any of the possible catastrophic failures he seems so intent to reproduce. Periodically stopping the ball mill so it can “cool” is both unnecessary and hilariously misinformed.I could go on, but this is getting redundant.I have never complained about the safety aspect of a story before but this one is beyond comprehension. Its like a kid told me he is going to try skydiving and drilled a hole in his backpack so the parachute doesn’t tangle up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206827",
"author": "lurker",
"timestamp": "2010-11-02T21:10:16",
"content": "I don’t see this as particularly unsafe, rather uninformed. PVC isn’t that much of a hazard – If you were to buy a “pyrotechnic” ball mill, it would have a chamber made of HDPE – Much tougher than PVC, and used for the same purpose – IF it explodes, it is likely to tear rather than shatter, and the relatively low density means that the fragments will only be lethal for a short distance (versus metal or hard woods).As for the “vent,” it’s simply stupid. The danger from ball milling generally comes from two things – sparking and oxidation. Take sparking first – Your milling media must be non-sparking, regardless of what you’re milling. Brass, lead, and a few grades of steel are the preferred media – Whether they are hitting eachother, metals in your mill, or the walls of the container, they won’t spark. This is especially important for making black powder meal, and when milling anything potentially flamable (look up “grain silo” explosions).When milling metals, a vent is good – But it needs to be an air-permeable membrane. The major pyrotechnic metals, aluminum and magnesium, oxidize incredibly quickly in air. This is a heat liberating reaction, meaning that the shit gets hot. Now, imagine milling – you’re breaking your metal up into smaller pieces with unoxidized surfaces being exposed. Open up the container, air rushes in, and it oxidizes…And heats up… Standard practice, when using an efficient mill, is to open it every six hours – This allows oxidation to take place periodically, rather than all at once at the end. There have been many amateurs killed or sent to the hospital because they weren’t aware of or simply ignored this hazard… Search the apc forums for some tips and horror stories if you’re interested…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206828",
"author": "vonskippy",
"timestamp": "2010-11-02T21:10:48",
"content": "If you have to resort to using kiddie toy legos to “hack” something – get a new hobby.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206831",
"author": "lwatcdr",
"timestamp": "2010-11-02T21:21:29",
"content": "Why not just use a rock tumbler? They run about $40 at harbor freight?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206838",
"author": "Ben",
"timestamp": "2010-11-02T21:52:52",
"content": "Yeah, the hot glue filled safety feature is useless.Also, why do people think ‘alum’ is an acceptable abbreviation for aluminum/aluminium?The suggestion to put aluminum and the grinding media in a plastic bag to prevent the aluminum from sticking to the inside of the barrel seems a little suspect. I’m curious to know if he actually did this. I would think the bag would get beaten up pretty quickly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206841",
"author": "asheets",
"timestamp": "2010-11-02T22:05:32",
"content": "United Nuclear uses neoprene in their barrels…http://unitednuclear.com/index.php?main_page=index&cPath=25_35",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206842",
"author": "Matt",
"timestamp": "2010-11-02T22:06:43",
"content": "Yes, this is moronic. Using PVC ensures only that you accumulate static, and that when the shrapnel enters your body and you subsequently end up in hospital, the radiologist trying to find the pieces inside your body is hindered or unable to do so due to the lack of transparency gradient (PVC appears similar to body tissue under X-ray).Use HDPE. It doesn’t",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206844",
"author": "Matt",
"timestamp": "2010-11-02T22:09:10",
"content": "fragment when it overpressurises, and is used by pyrotechnics professionals for the purpose. It would have been better if I actually finished that sentence before posting it…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206846",
"author": "Trollicus",
"timestamp": "2010-11-02T22:17:16",
"content": "Ok, a little FYI from someone who has made and used Aluminum powder.Aluminum is HIGHLY reactive and will oxidize almost instantly forming a microscopically thin layer of aluminum oxide which stops the process as it forms an airtight barrier. So when your looking at something aluminum what you actually are looking at is a thin coating of aluminum oxide.To make the powdered aluminum I would suggest replacing the air with an inert gas, Helium works well is cheap, non-flammable and easy to acquire.Say you want to make thermite (a mixture of Aluminum powder and iron oxide(rust). A VERY fine aluminum powder and Iron oxide powder with a binder(I used wax) and an ignition source hot enough to start the reaction. A small strip of magnesium works well and can be ignited with a small hand torch or good “turbo” lighter.I “make” my iron oxide powder using water a DC voltage and an iron nail. This works well and makes a fine powder. Dry the powder thoroughly in a toaster oven. The aluminum powder must be a very fine dust.Warning Thermite is basically imposable to stop once it starts to burn (water wont put it out) can ignite material that you wouldn’t think could burn (alloy rims and bicycle frames!) and will melt through almost anything else. I have used it to “spot weld” and to cut holes in 2″ thick steel plate so it does have some very useful properties. Eye protection is a must(welding mask) but I have burned a hole through some asbestos rings and gloves so keep your distance.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206853",
"author": "Trollicus",
"timestamp": "2010-11-02T22:40:20",
"content": "After reading my post I realized I wasn’t satisfied with the level of WARNING I gave.Aluminum powder is one of the most dangerous things you can make.(big period) It’s not just flammable it’s downright explosive and will ignite on contact with the air. It’s less dangerous when it’s made with a constant air source which makes it sealed in it’s own little microscopic aluminum oxide cans, but it’s still a lot more dangerous than most people would think it is.THIS IS A VERY DANGEROUS THING TO DO.Yea I have done it(more than once) But I’m more than a little crazy.If you really, really, really want to live you might want to skip this one.YOU HAVE BEEN WARNED!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207113",
"author": "pff",
"timestamp": "2010-11-03T10:35:18",
"content": "seriously guys, step 4:electrics.wtf.this guy is pretty much retarded.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207139",
"author": "Jake",
"timestamp": "2010-11-03T12:44:50",
"content": "Yeah, umm, these lego parts are going to have some MAJOR durability issues with this. They are toys!!! This is not a good idea unless you are building it for the “concept”, but not building it to actually *use* it.Come on, HAD. It’s pretty easy not to fail like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207254",
"author": "Trollicus",
"timestamp": "2010-11-03T17:49:22",
"content": "I don’t think this is actually something intended for use although he saids he’s making aluminum powder with it. It’s probably a good thing it’s made of cheap material as a more ruggedly built system would be quite dangerous(read my post about aluminum powder) As it is the powdering is probably so slow that the aluminum oxidizes without making to much heat and would not ignite when he opened the container and the air rushed in.Lego’s make good design tools for concept. Now he can make more durable parts and have a fair idea how they will fit and work together. Obviously the pvc barrel and lego motor wont stand up to polishing rocks much less for pulverizing metal.If you read the author even mentions the idea that this is a DESIGN and mentions scaling it to a bigger dimension. Rating the design (not the material used for this demo) it seems that it it were made of more durable materials it would be quite useful.I would add a way to ventilate the barrel and a decent ground! we don’t need static buildup for an ignition source, some machined parts(not legos) and a hefty motor(sealed type no need for sparks and dust). By placing this entire device(again made more durable) in an enclosure filled with an inert gas for magnesium aluminum powder etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207281",
"author": "Anon",
"timestamp": "2010-11-03T19:32:54",
"content": "I wouldn’t trust the apparatus of someone who writes 4 lines and 11 commas in one unstoppable sentence, and can’t spell most of the words right.It reflects the work of someone that doesn’t stop to think.–Oh and about Instructables, please make it stop.It’s a freaking website making money from stupid user content, and the birthplace of artsy-hippies praying the blue led god (throwable).Seriously, it’s premise is about hiding the information that someone gives for free to the world, and makes you become member to see it.Isn’t that against the principles of hardware hacking? You know.. breaking information free.It’s like hiding half of a turd, and making you pay or eat spam to see the other end.Is HAD affiliated with that site?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "237586",
"author": "jpoopdog",
"timestamp": "2010-12-03T05:06:55",
"content": "hello everyone, i am jpoopdog, as the creator of this i think i should mention that the description was misleading, in the ways as follows1. i am not using a nxt motor or pack, to allow the mill to cool, it isnot programmed at all in any way, it works exactly the same as a comercial hobby mill. what i said about letting it cool was to allow the motor and the dc power pack to cool down, as they heat up over time, like any motor or power pack, so they dont melt, which is an issue i had twice.the actual milling barrel will never heat up much, because the only heat mine has ever gotton, was radiated from the motor, which i might add has not burnt out, even after 3 days nonstop running.2. the fail safe works by melting before the pipe gives way from an explosion, as it is the weakest point in the barrel.i have done tests, purposly milling flahs powder, with rocks, to make an explosion, which oddly enough took a very long time, and after 3 explosions, in which the pipe ends just blew off,i got a failsafe that would melt before the pipe blew up. though those barrels all melted, and are not the same ones in the picture, but the main barrel, (not the endcaps) are the same. andthe failsafe will do exactly what was said, it will shoot off like a rocket, or slowly release presure when the hot glue melts so it does not produce a shrapnel explosion, now what i did forget to mention is that i have only ever milled alum powder in the mill itself, all other chemicals wee made in a ziplock bagg within the barrel, and for gunpowder milling, i used a static proof chemical container. the only possible source for ignition within the mill when making alum is a spark from the ball bearings, thats it, which will ignite airborn alum powder, which will cause an explosion, but not strong enough to , rocket off per say, like an actual rocket, but at least its safer than an explosion. i have never had issues with static within the mill, though i will admit, after a few days of milling, all the alum foil does stick to the sides of the barrel, with static electricty, this goes awya once the first small amount of alum is made, (after 2 days, no more gets made for a long time after though).3.yes , the lego does show a small amount of were an tear, though this only takes the form of a very light white dust. ill point out that lego no longer make + shaped axels, they all all a bit more ounded now, though still, vaseline will fix that permanently.4. yes it is a design, something you can base a bigger mill off, or smaller for whatever reason.5. i check the mill ever 3 hours or so, so i how far its gone, i must do this as if i just plainly mill it for ages , once its a powder, it leaks from the barrel, as alum power is microscopic, once it is powder, or partly powder , i add ductape to the barrel, to avoid leaks, i do this only when its a powder as i think ductape will make static electricty.6. i am making aluminium powder with this, and i have made alot of it. though with aluminium, i had no issues, also ill point out i add a small amount of charcoal to this, to reduce the hazard of an explosion.7.about the bag, it does work, and remarkabley, does not get beat up to bad, though i am using chrome stainless ball bearings, that come from a train (thanks to my grandpa who is a train mechanic).im sure i said it before though, the ziplock bag i used was a freezer bag, which is thick and quite strong, though i used two bags . now though i just use that barrel that is already stained for alum, and different barrels that are clean, that have a ziplock bag inside, for everything else.please post any other questions and concerns about this mill, and i promise i will respond, both here and instructables.lastly ill point out that i said, that you SHOULD use a genuine milling jar for this, but i prefer to use pvc as im a cheapskape.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "238414",
"author": "jpoopdog",
"timestamp": "2010-12-03T08:51:44",
"content": "i am not retarded, im just simplifying it, because believe it or not, there actualy are people who dont know how to connect a battery two wires and a light bulb (with two wires pre-attached). such as me, only when i was 8, at which time i could read instructions on how to build things from electronics kits, but i didnt have a clue on how they were actually working, but i still built it, though at the time i was more a lego person, as i am still now,",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,343.937558
|
||
https://hackaday.com/2010/11/02/lego-barcode-scanner/
|
LEGO Barcode Scanner
|
Mike Szczys
|
[
"Toy Hacks"
] |
[
"barcode",
"lego",
"nxt",
"scanner"
] |
Playing store just got really, really fun because you can now
build your own LEGO barcode scanner
. As you can see after the break, it works well and it’s fast like a real barcode scanner. Unfortunately it doesn’t scan real barcodes. Or at least not traditional ones. As we learned in
the Barcode Challenge
, standard barcodes are a set of white and black bars that make up the ones and zeros of the code. This system uses the same white and gray bar system but it seems that it’s only the number of bars that identify an item, not a code created by a particular combination of light and dark. The items above are all scannable because the scanner counts the 2, 3, 4, 5 or 6 white beams on the bottom of each package. Still, it’s incredibly clever and a great toy for the young hackers to build if they have a little help.
[youtube=http://www.youtube.com/watch?v=Q6UYW0hwKTg]
[via
Tinkernology
]
| 3
| 3
|
[
{
"comment_id": "206763",
"author": "Marco",
"timestamp": "2010-11-02T18:40:02",
"content": "I have found the NXT light sensor to be rather noisy. Getting accurate results at that scanning speed is quite an achievement.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206908",
"author": "Nair",
"timestamp": "2010-11-03T02:17:39",
"content": "I remember to those old Anarchy tutorials about using a pencil to cheat with barcodes on stuff you buy in the stores :DGuess that hacking is kinda lowlife drifter level nowadays considering that you can rather find bugs in googles software for 3ks and you dont have to hack barcodes on the cereal to survive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "208453",
"author": "Hendrik",
"timestamp": "2010-11-06T09:47:57",
"content": "For a class project we build a crude version of this functionality, too, last year.We were limited in the amount of parts we could use and had to emulate the entire procedure in an ATM and relied on b/w strips on a credit card. Getting the timing right was so annoying with this sensor that we relied on a motor to pull the card into position. That solution above is really impressive.http://glokal.eu/content/building-lego-atm-machinehttp://www.youtube.com/view_play_list?p=5525D0FFF28C6D3F",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,343.511896
|
||
https://hackaday.com/2010/11/02/hacking-a-hack-disassembly-and-sniffing-of-im-me-binary/
|
Hacking A Hack: Disassembly And Sniffing Of IM-ME Binary
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"binary",
"bus pirate",
"disassembly",
"im-me",
"reverse engineering",
"sniffing",
"spi"
] |
It’s fun to pick apart code, but it gets more difficult when you’re talking about binaries. [Joby Taffey] opened up the secrets to one of [Travis Goodspeed’s] hacks by
disassembling and sniffing the data from a Zombie Gotcha game binary
.
We looked in on [Travis’] work yesterday at
creating a game using sprites on the IM-ME
. He challenged readers to extract the 1-bit sprites from an iHex binary and that’s what got [Joby] started. He first tried to sniff the LCD data traces using a Bus Pirate but soon found the clock signal was much too fast for the device to reliably capture the signals. After looking into available source code from other IM-ME hacks [Joby] found how the SPI baud rate is set, then went to work searching for that in a disassembly of [Travis’] binary. Once found, he worked through the math necessary to slow down communication from 2.7 Mbit/s to 2400 bps and altered the binary data to match that change. This slower speed is more amenable to the Bus Pirate’s capabilities and allowed him to dump the sprite data as it was sent to the LCD screen.
[Thanks Travis]
| 9
| 9
|
[
{
"comment_id": "206706",
"author": "andrew",
"timestamp": "2010-11-02T17:20:19",
"content": "#corrections “SPI baud rate” should be “SPI bit rate”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206710",
"author": "andrew",
"timestamp": "2010-11-02T17:41:43",
"content": "That’s pretty ninja",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206735",
"author": "Zilluss",
"timestamp": "2010-11-02T18:07:51",
"content": "Was it part of the challenge to extract it via bus sniffing? Otherwise he could have just applied some reverse engineering et voilá",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206834",
"author": "Cybergibbons",
"timestamp": "2010-11-02T21:35:28",
"content": "Nice work – a very clean way of doing this. It’s quite often fairly easy to identify the registers used to setup clocks, dividers, I/O etc. in a bin file and play with them.It’s also sometimes possible to change the onboard crystal for a slower one, or on some microprocessors, remove it altogether as it will fall back to the internal oscillator.On the other hand, it’s possible to buy a faster logic analyzer, but where is the fun in that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206835",
"author": "mungewell",
"timestamp": "2010-11-02T21:35:52",
"content": "just to note that the BusPirate should work up to around 10Mbit/s in it’s raw SPI mode.There are PC utilities to configure it into this mode and record/display the data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206858",
"author": "Peter",
"timestamp": "2010-11-02T23:23:12",
"content": "@andrewBaud rate is just symbols per second. Since SPI uses binary levels, bit rate = baud rate",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206905",
"author": "Joby Taffey",
"timestamp": "2010-11-03T02:07:23",
"content": "@mungewell The Bus Pirate may capture faster signals, but it can’t get them out over the FTDI chip any quicker",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207002",
"author": "mungewell",
"timestamp": "2010-11-03T04:31:17",
"content": "@Toby – the total usable rate depends on the SPI clock and the rate which the processor sends out the bytes. There is a ring buffer on the BP which provides for a little slack.To get maximum baud rate out of the BP use the ‘b + 9’ command to manual set a Raw baud-rate (460800 baud is ‘8’, 921600 baud is ‘3’) and then start the Raw utility at this higher rate.Not having a IM-ME I can’t say whether this would actually be fast enough… so I appologise if you have already tried this. Good hack anyhow!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "484741",
"author": "Anil",
"timestamp": "2011-10-20T06:46:02",
"content": "Hi,I have a task to develop a device it will sniff or emulate HD44780 LCD communication with another device and it will send the screen content to PC.My first choice is to develop an emulator. It will emulate LCD and communicate with the LCD driver (host) and sends the screen content to PC through its serial port.Another choice is to sniff data line and control line. It will sniff the LCD communication between host and LCD and it will send the screen content to PC through its serial port.I can not change the program of the device (host) that drives LCD. LCD driver runs with 8 MHz crystal.I have a STK600 development board to sniff or emulate and I am using ATMEGA1280 with 16MHz crystal on it.I tried to develop an emulator first, but I saw that I can not answer LCD driver’s commands. It wants to check the busy flag on LCD, I can not response fast enough. I have only 8 cycle time (500 ns @16MHz) to answer the busy flag check, but in my interrupt vector code, there are many push and pop instructions at the beginning. Because of I can not answer on time, it causes too much delay in communication. I have to answer at the right time it asks.Did someone try to develop a hardware LCD emulator? Do you have any suggestions about this kind of project? Is the hardware I am using for development enough for me? My opinion is, I should use a faster device for this kind of project to emulate an LCD. Although I use assembly programming for development, 16 MHz is not enough for me I think. Is there anyone has an experience about this subject?If anyone is interested and willing to help me with their suggestions, I will give more information about what I did and I will put my source code here in C.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.165719
|
||
https://hackaday.com/2010/11/02/halloween-prop-mario-bros-with-full-sound-effects/
|
Halloween Prop: Mario Bros. With Full Sound Effects
|
Mike Szczys
|
[
"home hacks"
] |
[
"arduino",
"greeting card",
"Halloween props",
"mini",
"nunchuck",
"sound effect",
"super mario bros",
"wii"
] |
Creativity abounds in putting together this
pair of Super Mario Bros. costumes
. [Rob] and his wife didn’t stop with a well-assembled troupe of familiar wardrobe items, but decided to go for authentic sound effects as well. It started by finding a few of his favorite Mario sounds on the Internet. From there he grabbed a greeting card that allows you to record several message. He recorded each of the sounds and removed the electronics from the card. From there an Arduino mini was connected to the playback buttons and to a Wii nunchuck. After the break you can see that when the kids press a button, the card plays back the sound of jumping, shooting fireballs, etc. So far it’s the best use of an audio greeting card that we think eclipses its intended use.
[flickr video=http://www.flickr.com/photos/53860850@N02/5134441901]
| 13
| 13
|
[
{
"comment_id": "206668",
"author": "Imanoss",
"timestamp": "2010-11-02T16:13:51",
"content": "so cool.that’s next year’s costume sorted for me",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206674",
"author": "kristian",
"timestamp": "2010-11-02T16:28:46",
"content": "how about some leds in the other gloves to flash for the fireballs?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206676",
"author": "jstrong",
"timestamp": "2010-11-02T16:31:35",
"content": "lol the kids have wii remotes and are standing infront of the tv with mario on lame post",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206681",
"author": "Gert",
"timestamp": "2010-11-02T16:35:11",
"content": "Did they ever play Mario on a NES?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206683",
"author": "djrussell",
"timestamp": "2010-11-02T16:39:16",
"content": "these kids do not understand the awesomness that they posess.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206704",
"author": "Mr 80's",
"timestamp": "2010-11-02T17:14:08",
"content": "Wassamatter you, hey? Gotta no respect?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206705",
"author": "DeadlyFoez",
"timestamp": "2010-11-02T17:19:34",
"content": "I’d LMAO if Nintendo decided to sue them for copyright infringement.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206711",
"author": "Squirrel",
"timestamp": "2010-11-02T17:42:17",
"content": "@kristianBetter idea:http://hackaday.com/2009/11/03/improved-arm-mounted-flame-thrower/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206768",
"author": "muhz",
"timestamp": "2010-11-02T19:00:41",
"content": "@jstrongIf you read the post, you’d see that thats only a nunchuk and that its being used as an interface for an audio greeting-card arduino setup.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206840",
"author": "mowcius",
"timestamp": "2010-11-02T22:02:47",
"content": "They got a headstart on movember – no fair!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206843",
"author": "nateL",
"timestamp": "2010-11-02T22:08:52",
"content": "I want to see sensors in the shoes that when both are off the ground, you get the jump audio.Nicely done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206866",
"author": "fr4ncium",
"timestamp": "2010-11-02T23:59:24",
"content": "@nateLI was thinking about that too, except it might be easier to just use the accelerometer in the nunchuk if you keep it strapped to your body (otherwise gesturing would set it off).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206893",
"author": "RobHopeless",
"timestamp": "2010-11-03T01:31:23",
"content": "@nateLThe Nunchuck has an accelerometer in it and when they jump it plays the jump sound.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,345.943539
|
||
https://hackaday.com/2010/11/02/magnetic-card-stripe-spoofer/
|
Magnetic Card Stripe Spoofer
|
Mike Szczys
|
[
"Arduino Hacks"
] |
[
"credit card",
"magnetic stripe",
"magstripe",
"spoofer"
] |
This hodge-podge of components is capable of
spoofing the magnetic stripe
on a credit card. [Sk3tch] built an electromagnet using a ferrous metal shim wrapped in enameled magnet wire. While he was doing the windings [Sk3tch] connected his multimeter to the metal shim and one end of the wire, setting it to test continuity. This way, if he accidentally scraps the enamel coating and grounds the wire on the metal the meter will sound and alarm and he’ll know about the short immediately. An Arduino takes over from here, actuating the coil to simulate the different data sections of a magnetic stripe.
From his schematic we see that the electromagnet is directly connected to two pins of the Arduino. We haven’t looked into the code but is seems there should be either some current limiting, or the use of a transistor to protect the microcontroller pins (we could be wrong about this).
[Sk3tch’s] realization of this spoofer can be made quickly with just a few parts. Card data must be written in the code and flashed to the Arduino. If you want to see what a more feature-rich version would entail take a
look at this spoofer that has a keypad
for changing data on the go.
[via
Lifehacker
]
| 26
| 26
|
[
{
"comment_id": "206631",
"author": "James",
"timestamp": "2010-11-02T14:18:47",
"content": "I’m a bit ignorant in these matters, but don’t the magnetic stripes have 3 sub-stripes? Does this spoof all of them, or just simple cards like those used to give carpark access?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206637",
"author": "JJ",
"timestamp": "2010-11-02T14:52:05",
"content": "Rather than setting up some sort of alarm to detect if the enamel was scrapped off on the metal shim, why not just insulate the metal shim with some electrical tape? That wouldn’t effect the electromagnet.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206638",
"author": "Jay Boy",
"timestamp": "2010-11-02T14:54:45",
"content": "“We haven’t looked into the code but is seems there should be either some current limiting, or the use of a transistor to protect the microcontroller pins (we could be wrong about this).”what kind of half arsed reporting is this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206639",
"author": "Andrew",
"timestamp": "2010-11-02T14:59:08",
"content": "@JamesHaving worked extensively on this protocol for an independent study, there is no way to spoof all 3 tracks using just one coil. That being said spoofing a single track is usually sufficient for access systems, membership cards, etc… Basically anything not in the financial sector.@hackadayShame on you for not reviewing you past postings. This project is a derivative work based on several projects already covered by this site. Its also a damn shotty implementation. The code is terrible. Most importantly, this guy is driving a very inductive load straight from the digital pins of an avr. Frankly I’m surprised that works at all and it will eventually destroy the arduino. To anyone looking to duplicate this please use a transistor and a flywheel diode.note: I know I’m being critical but that’s only because this is a derivative work. More to the point, its a derivative work that’s significantly lower quality than the project being copied.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206642",
"author": "Gdogg",
"timestamp": "2010-11-02T15:13:12",
"content": "Yeah, couldn’t you simply attach an h bridge w/diode (forget what the chips called but I have a bunch) for 30c and protect your arduino from back voltage?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206645",
"author": "smoker_dave",
"timestamp": "2010-11-02T15:31:23",
"content": "H bridge?You just need a transistor (BC547??) and a 1n4004 diode.Simples.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206649",
"author": "Rich T Kirk",
"timestamp": "2010-11-02T15:42:21",
"content": "I was going to mention the back EMF – I am surprised the IO pin and or AVR has not been completely destroyed.When changing the current direction through the coil 4 diodes are needed and an H bridge.1/2 of an L293 is probably the easiest option.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206654",
"author": "derp",
"timestamp": "2010-11-02T16:03:10",
"content": "magnets, how do they work?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206680",
"author": "Paul",
"timestamp": "2010-11-02T16:32:20",
"content": "Just wait for citibank to roll their new cards out, then hack them…http://www.internetbits.com/programmable-credits-cards-may-be-new-dynamics/54918/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206682",
"author": "biozz",
"timestamp": "2010-11-02T16:35:24",
"content": "i think i have seen this here before with an ipod",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206700",
"author": "M4CGYV3R",
"timestamp": "2010-11-02T17:06:49",
"content": "@PaulOne step closer to credchips! I love it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206717",
"author": "arfink",
"timestamp": "2010-11-02T17:49:32",
"content": "Wow, is that ever a lovely dirty hack. Something inside me says it’s still cool though. Dirty code, no back EMI protection, etc. Something Macgyver would come up with for a single use or something like that. Nothing like a 10 minute hack for a 10 minute job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206731",
"author": "Gdogg",
"timestamp": "2010-11-02T17:56:34",
"content": "@smoker_daveYeah, but the h bridge includes both, and I have that handy ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206732",
"author": "macw",
"timestamp": "2010-11-02T17:58:19",
"content": "If this were something built out of garbage by a homeless man to spoof door access cards so he could find a place to sleep or something…then I’d be really impressed. Or if it were built in a post-apocalyptic wasteland. But outside that context, this is….not very well done.No protection diodes or isolators, driving an inductive load directly from the AVR pins, the coiling and soldering both look shoddy, and the whole thing is just zip-tied together? I think it’s pretty telling that HaD thought it was worth writing about how he used the continuity test function on his meter while assembling the coil…because everything else in the project shows zero foresight.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206759",
"author": "Andrew",
"timestamp": "2010-11-02T18:28:58",
"content": "@macwMy thoughts exactly. HAD has really lowered their standards.Interesting side note. For those without an H-bridge this can be done without reversing the polarity of the coil. Due to the properties of the current stored in the inductor you can treat a 1 as on and a 0 as off. The act of disconnecting the inductor generates enough of a induced current in the opposite direction to provide the necessary flux reversal for the reader to register a 0. This lowers the part count to 1 transistor and 1 diode or 1 mosfet with integrated diodes (my preference).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206764",
"author": "Concino",
"timestamp": "2010-11-02T18:51:38",
"content": "I am not sure why we are all concerned about this guys Arduino? You know it is missing the H bridge, so don’t replicate what he did. This site is not named Engineering a Day, it is Hack a Day, and some hacks are dirty and some are not.I think it is not the HAD’s standards is the problem, I think the audience got a little bit picky and elitist.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206766",
"author": "macw",
"timestamp": "2010-11-02T18:57:07",
"content": "I agree that the audience here is usually picky and elitist, usually too much so, but it would be good for HaD to say clearly “this guy is going to blow up his arduino, DON’T DO THIS” for the people who may not have as much experience as others and would just try it as depicted. I don’t have a problem with really dirty hacks being posted as long as the editors explain why they might not be a great idea to duplicate on your own — they can even be a learning experience that way.(The wishy-washy “we could be wrong about this” isn’t needed…it’s obviously bad practice to drive any powerful load directly from the i/o pins and it only costs like a nickel of parts to keep everything safe, so there’s really no excuse).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206769",
"author": "zeropointmodule",
"timestamp": "2010-11-02T19:01:13",
"content": "@macw, this is a useful tip for those people wanting to wind their own coils for other applications (i.e. small HV generators and fluorescent/EL drivers) as it allows the fault to be rectified before it ruins hours of hard work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206781",
"author": "echodelta",
"timestamp": "2010-11-02T19:41:46",
"content": "Winding coils always requires extreme insulation on the core, and kink free, damage free winding.Tension control too, because it builds up too much pressure at the core.If you expect something might fail, just do the right thing. Just because it works does not mean it’s workingProbability says if the wire might short out while winding, then it surely will at more points than one later! All that pressure bears down on any defect and onto the sharp edges of the core.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206816",
"author": "Gdogg",
"timestamp": "2010-11-02T20:34:03",
"content": "I think HaD should have just mentioned what he was doing wrong, and mentioned how we could mitigate these risks. It’s still interesting enough to warrant a post, imo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206898",
"author": "Tomasito",
"timestamp": "2010-11-03T01:51:40",
"content": "http://hackaday.com/2008/08/04/magnetic-stripe-card-spoofer/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206906",
"author": "error404",
"timestamp": "2010-11-03T02:08:24",
"content": "Well, the AVR I/O pins are pretty robust. They include diodes to ground and Vcc, and an internal current limit. Yeah, it’s not proper, but it’s not going to destroy it instantly either.It’s a hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207037",
"author": "ejonesss",
"timestamp": "2010-11-03T07:10:55",
"content": "i think a store would become suspicious of the use of a stolen card if you tried to use this in a store.however it does make a great way to learn how the spoofing works.if you are worried about someone getting the number from the card you can fold a piece over the card or cut a protector envelope and slide it over the card so only the magnetic strip shows.if the store needs to see the card they can peel it back to see it but other customers in line are not as likely to see it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207127",
"author": "Whatnot",
"timestamp": "2010-11-03T11:58:38",
"content": "It’s sort of interesting that many chips have internal protection but us being scared causes us to add protection on top of it.Obviously you get reverse current but the power coming from the raw pin isn’t that high to start with nor is the coil and metal that bulky, so perhaps that means extensive protection is less important.And it’s using PWM pins right? Does that mean it’s using PWM and that limits the return force since the field collapses all the time with not enough time to build up a coherent return?Maybe somebody needs to make one of those ‘how long until it fails’ project from this concept :)And this project also nicely works to explain the concept by not having protection, so it has some merit based on that I guess.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207152",
"author": "Rich T Kirk",
"timestamp": "2010-11-03T14:08:18",
"content": "I was just pointing out the “traditional engineering” approach :PI think inbuilt diodes are only usually designed for ESD discharges – picking up the device with your hands etc. Early CMOS IC’s (4000 series before the B designator) had no such diodes and could be destroyed very easily.Would be interesting to see how tough these IO pins are though – that said I have really abused some 18F PIC’s, and they just keep going.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207154",
"author": "john585",
"timestamp": "2010-11-03T14:10:25",
"content": "Plus you could use it to shank your cellmate.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,345.845877
|
||
https://hackaday.com/2010/11/01/augen-e-go-booting-linux/
|
Augen E-Go Booting Linux
|
Mike Szczys
|
[
"Linux Hacks"
] |
[
"augen",
"Didj",
"e-go",
"linux",
"Windows CE"
] |
The Augen E-Go is billed as a Netbook that ships with Windows CE. [Moogle]
got it to boot the Linux kernel
after a bit of
hardware snooping
. He found a UART connector on the main board and discovered that if you tie the enable pin to ground
you can send an ARM bootloader
to the device during boot up. His past experience
hacking the Didj and the Explorer
helped him recognize the processor used in the Augen. This lead to using a zimage from the Didj to boot the Linux kernel. So far the process halts at a kernel panic, but that’s because he hasn’t built the image with a file system for the device yet.
If the E-Go ends up playing nicely with Linux, [Moogle] may have found a suitable replacement for
the Zipit
.
Update:
Looks like we’ve got the wrong version of the E-Go pictured above (and linked below). Check out
[Moogle’s] comment
for model numbers.
[Augen photo credit:
Newegg.com
]
| 29
| 29
|
[
{
"comment_id": "206334",
"author": "Decius",
"timestamp": "2010-11-01T20:20:54",
"content": "What are the specs of this Device?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206336",
"author": "The Moogle",
"timestamp": "2010-11-01T20:22:22",
"content": "The link to newegg.com is to the wrong laptop!That one is AKARM ARM926-AK7802 based, less information is known about that processor and it is not pollux compatible.What you want is one of the fallowing. the only difference I know of is the colorAugen E-Go OE-A730 <- BlueAugen E-Go OE-A731 <- BlackAugen E-Go OE-A732 <- SilverAugen E-Go OE-A733 <- Red",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206339",
"author": "Decius",
"timestamp": "2010-11-01T20:24:44",
"content": "Specs:CPU: Arm AK 7802Q216 248Mhz7″ High Res TFT LCD(digital/800×480)64MB DDR main Memory Ram2GB Nand flash on board80keys Keyboard with touch padBuilt-in 10/100 LanBuilt-in Wifi (unknown chipset)Windows CE 5.0Rechargeable Li-ion batter (1500mAH)interfaces:1- USB 2.0 (aid external memory)2- USB 1.1 ( keyboard & Mouse)1- Headphone Output1- Microphone input1- Lan rj451- DC in9V1- Battery1- SD Card reader",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206341",
"author": "nirvous",
"timestamp": "2010-11-01T20:29:03",
"content": "Important note: The image and photo-credit link in the picture included in the original HaD post is *not* the Augen eGo device that Moogle has been working on.The correct eGo devices are the ones based on the MagicEyes Pollux 3520F processor; specifically, the Augen eGo OE-A730, OE-A731, OE-A732 and OE-A733.(The Pollux CPU is the same processor found in the Leapfrog Didj, Leapster Explorer, GPH Wiz, GPH Caanoo, NC600 thin client and other devices)nirvous",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206342",
"author": "Decius",
"timestamp": "2010-11-01T20:33:10",
"content": "It’s only 248 Mhz, The PSP has more power than this [and ram], if this is what is suitable as a linux portable why not try and get Linux to run on the PSP? Especially with tons of info about the hardware and price.It just seems pointless because of limited ram this thing has.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206345",
"author": "The Moogle",
"timestamp": "2010-11-01T20:34:32",
"content": "@ Decius that is still the wrong laptop# MagicEyes POLLUX 3520F 533 MHz processor (ARM 926EJ)# 128 MB DDR RAM",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206346",
"author": "polossatik",
"timestamp": "2010-11-01T20:35:36",
"content": "not sure what the hack is, this “E-Go” looks just another re-brand of all the ones listed onhttp://www.littlelinuxlaptop.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206360",
"author": "Arc",
"timestamp": "2010-11-01T21:51:08",
"content": "^ My bad to many windows open, wrong topic =P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206385",
"author": "st2000",
"timestamp": "2010-11-01T22:48:57",
"content": "Hey guys…I did a little reading on Amazon. First warning: Multiple brandings? Is this Augen also sold as an EPC also sold as a SilverStar also…? Second warning: Low (as in very low) customer feed back. One said the smoke came out, literally. We all know what that means.So, is it worth hacking?-thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206400",
"author": "The Moogle",
"timestamp": "2010-11-01T23:34:56",
"content": "There seems to be quite an interest in hacking this system so I went forward and set up a new forum section in my forumshttp://jertechonline.com/forum/viewforum.php?f=29",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206406",
"author": "WickedShell",
"timestamp": "2010-11-01T23:52:45",
"content": "If you look in the bottom right corner of this picture (from moogle’s site) it says 533 Mhz… I art confusedhttp://wtfmoogle.com/wp-content/uploads/2010/10/DSCN5492.jpg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206415",
"author": "Reggie",
"timestamp": "2010-11-02T00:27:01",
"content": "@wickedshell, thats because the links in the post on hackaday to newegg are wrong. Its not even the right picture. The Augen e-go that moogle hacked is silver and runs at 533Mhz. read back through the comments and it will become clearer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206456",
"author": "The Moogle",
"timestamp": "2010-11-02T02:23:33",
"content": "Because I was asked so much, I took the screen apartHere is what is insidehttp://wtfmoogle.com/?p=1723",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206466",
"author": "WickedSHell",
"timestamp": "2010-11-02T03:08:22",
"content": "Oh good, it’s not just the voices in my head. Thx for confirming that Reggie",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206514",
"author": "Ken",
"timestamp": "2010-11-02T07:07:00",
"content": "I question whether or not its worth the bother to mess with this thing. Even if you got it working, you have just have a poorly built and woefully underpowered computer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206547",
"author": "strider_mt2k",
"timestamp": "2010-11-02T08:44:56",
"content": "I was unfortunate enough to have a go with a low-priced “Windows CE” netbook.Not only was the hardware incredibly cheap, but the Windows CE was a hacked version that would support almost no WinCE apps at all.I ended up destroying it inadvertently when I attempted to upgrade the sound system to make a passable internet radio out of it.There are LOTS of these cheapie POS netbooks (and now tablets mein gott) around the net nowadays.I can understand how there is confusion.Anyhoo, THIS is pretty cool to see, and a good read too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206584",
"author": "piechipsandpeas",
"timestamp": "2010-11-02T10:37:59",
"content": "I know someone who saw my Aspire One and thought a £99 CNmBook (another badging) would be just like it… three weeks later it went back to the shop – so slow as to be unusable, nonexistent wireless etc. etc.That’s not to knock the hack, I just posted this as a response to the people who were asking if these machines were any use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206608",
"author": "Reggie",
"timestamp": "2010-11-02T11:57:53",
"content": "@ ken, the point of hacking it was, if you read the other comments, to get rid of the rubbish winCE image and put something on there that is infinitely more usable, like linux.We’ve got all manner of drivers for the cpu in that Augen, its not just an arm926 chip, its got usb client/host onboard, sd/mmc, 2 RGB, 1 video and 1 openGL layer on the graphics, 4 uarts, touchscreen.we don’t have X or anything like that on it but we do have framebuffer driver and SDL support.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206617",
"author": "miknix",
"timestamp": "2010-11-02T13:15:38",
"content": "@Reggie With a framebuffer, you can run DirectFB. Glib can then be compiled with direftfb support which allows gtk+ to run without X.Not sure which Linux distribution you run but I maintain GPE (gpe.handhelds.org) in the Gentoo distribution.I run GPE in my 200Mhz ARM926 PDA (HTC Wizard) and it is blazing fast, faster than stock windows mobile. GPE in this 500Mhz CPU sounds like a perfect candidate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206646",
"author": "JustMe",
"timestamp": "2010-11-02T15:31:26",
"content": "Man, this is cool. I have been looking at the same mini netbook just to try to put linux on it. But I have not got the chance to buy one. I read some forums here and there. But has far as I know you are among the first to do it. Can you please later on create a How to instructions for the less experience. Thanks and proms",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206653",
"author": "Reggie",
"timestamp": "2010-11-02T16:02:19",
"content": "@miknix, w’re using the linux that was distributed with the device, 2.6.20 for the didj and 2.6.31 for the explorer, neither of these are augen products but the didj, explorer and augen share the same arm926 based SoC.the framebuffer was hacked together by an industrious from partially written code left in the sources, it isn’t really ready for directFB etc. YET :)do you have any weblinks to GPE? I triedhttp://gpe.handhelds.org/but it doesn’t appear to be there",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206675",
"author": "sd",
"timestamp": "2010-11-02T16:29:47",
"content": "@ReggieI noticed the same, then Google introduced me tohttp://dev.gentoo.org/~miknix/gpe-config.htmlwhich led tohttp://gpe.linuxtogo.org/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206912",
"author": "Adenosine",
"timestamp": "2010-11-03T02:33:02",
"content": "Anybody seen these??Apparently theres an Augen running Android @ $110.http://www.kmart.com/shc/s/p_10151_10104_020W025343510001P?vName=Computers%20&%20Electronics&cName=Laptops&sName=Netbooks&sid=KDx20090423x00001&srccode=cii_10043468&cpncode=21-84198152-2",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206999",
"author": "tech-no-pest",
"timestamp": "2010-11-03T04:01:51",
"content": "this device+hack sounds like a excellent standalone terminal for a cnc machine or avr/pic programmer or any other hackindustry device…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207165",
"author": "aliosa27",
"timestamp": "2010-11-03T14:28:39",
"content": "The kmart versions running android run debian as well…I was able to get it up on both the little one and the 10 inch one",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207330",
"author": "Decius",
"timestamp": "2010-11-03T21:26:14",
"content": "My bad this thing may have more CPU power, in that case I find this of some use like others have suggested.If you happen to have one of these I think this hack is great, but personally I won’t be picking one of these up unless of course they are low in price lol. It helps the fact that I know they have more use thanks to this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210327",
"author": "kk",
"timestamp": "2010-11-10T07:36:20",
"content": "Where can I download the OS for the Augen oe-a731?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217414",
"author": "JEDITALIAN",
"timestamp": "2010-11-24T02:02:38",
"content": "Augen Genbook74. less crappy specs, while being still crappy, IMO. what are you going to do with a 400mhz processor nowadays?then there’s this:http://www.mwd.com/2010/07/augen-gentouch-78-video-and-specs/800mhz and 256mb ram, 2mb rom and a 7″ screen.. better specs than my phone. thinking about it even though it has a few shortcomings.. like it should have a 3.5mm jack but i think it would make a decent android e-reader and web browser with Opera Mini. After you root it, of course and get rid of whatever crap version of android comes on it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "3247720",
"author": "Gabriel Orlanda",
"timestamp": "2016-10-30T03:51:48",
"content": "Hi,I have Augen E-GO A732 with windows CE 5.0 and I want to use it but it’s seems that asking about the password when loading Windows.I changed the battery on the motherboard.Please tell me the password because I have some documents there, and I want them .Thank you so much",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.111348
|
||
https://hackaday.com/2010/11/01/futuristic-3d-mouse-originally-arduino-powered-and-3d-printed/
|
Futuristic 3D Mouse Originally Arduino Powered And 3D Printed
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"3d",
"arduino",
"mouse",
"printer"
] |
We usually shy away from posting about commercial products. Strap on a bib to protect your shirt from the drool, watching the video after the break will show you why we had to post about this. [Valentin Heun] and his cohorts
developed this three-dimensional controller
using tools common to the hacker community. The patent-pending device uses a sphere for rotational input but can also be nudged for movement on 3 axes.
You may remember that [Valentin] as involved with that
10,000 watt flourescent lamp display
. His Arduino skills were honed with that installation and used during the development of this mouse. Also joining in the prototyping fun was a 3D printer used to make the parts. From project to production, we figure the skills you use when hacking are breaking down the barriers that inventors have traditionally faced when looking to marked useful products.
This would be fantastic for 3D cad, modelling, etc. But we think it would also go well with Eagle, like
the other 3D mouse hack
did.
[vimeo=http://vimeo.com/16253164]
| 42
| 40
|
[
{
"comment_id": "206299",
"author": "Craig Burden",
"timestamp": "2010-11-01T19:08:13",
"content": "OMG!!! where can i buy one!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206300",
"author": "James",
"timestamp": "2010-11-01T19:08:47",
"content": "Can’t see how this would be any better (if not slightly worse) than a 3D Connexion item, which is a bit more comfy to use, a bit cooler looking and a lot cheaper?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206301",
"author": "Grovenstien",
"timestamp": "2010-11-01T19:09:18",
"content": "Looks good. But only if it is cheaper than the 3D Connexion Space navigator will it be truly great! Also point modelling is a drag.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206306",
"author": "queso",
"timestamp": "2010-11-01T19:22:05",
"content": "This looks like an ergonomic nightmare. Although I like the idea, I have seen much better looking and more intuitive 3d mice before.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206321",
"author": "Edward",
"timestamp": "2010-11-01T19:50:09",
"content": "This differs wildly from the 3D Connection device. The 3D Connection functions like a joystick, this one works like a track ball or mouse.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206324",
"author": "Junkman",
"timestamp": "2010-11-01T19:51:43",
"content": "Adoption of new input devices seems poor, people like using the mouse. Have you ever taught a computer class? Most people have difficulty just mastering the click/select delay couldn’t imagine this replacing an existing mouse. I could see using something like this for gaming. No need to use 2 hands to play l4d2 but then again I don’t see the fire button on this thing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6768037",
"author": "Talia",
"timestamp": "2024-06-16T18:54:03",
"content": "This isn’t for standard computing, it’s for 3d modeling",
"parent_id": "206324",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "206330",
"author": "Jake",
"timestamp": "2010-11-01T20:08:06",
"content": "…”Arduino” powered? You mean Atmel powered, right? There is no MCU called an “Arduino”. Lol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206331",
"author": "Nomad",
"timestamp": "2010-11-01T20:11:08",
"content": "@Junkman: this is NOT a replacement for a mouse. Just the same way like the 3DConnexion Space-mice aren’t! Don’t confuse stuff here please.@Edward: nah, i don’t think this thing is acting like a trackball/mouse. It still is a spacemouse, but the difference between the 3Dcon ones it is not navigating the camera, but the objects. As you can see in the video, when the ball is being turned, the object turns too. If you turn the control on a 3DCon spacemouse, you are turning the camera.The major advantage of this one is, that the ball has full motion. if you turn it, the object is turned…if you turn it back, the object is turned back, too. on a 3DCon spacemouse you just say how fast the object/camera is going to turn in a direction. If you release the control there, it will stop turning, so it should be easier handling rotational movement with the Axsotic mouse.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206332",
"author": "The Cheap Vegetable Gardener",
"timestamp": "2010-11-01T20:14:08",
"content": "Looks cool, but my fingers are getting tired just looking at it…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206333",
"author": "BitMage",
"timestamp": "2010-11-01T20:16:42",
"content": "This would be an epic gaming device with the addition of buttons and vibration.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206335",
"author": "Marco",
"timestamp": "2010-11-01T20:21:56",
"content": "Valentin is a dude, not a dudette.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206348",
"author": "djrussell",
"timestamp": "2010-11-01T20:50:50",
"content": "actually the ergonomics don’t look TOO bad. the ball may be a bit high. there are other normal mice that put your hand in a more sideways position to keep your wrist off the desk.i use a 3dconnexion spacepilot daily and i don’t really see the benefit here. there may be a more direct link between turning the ball and turning the object. so what? i can still use the spacepilot just as effectively. plus i get mappable buttons and alt-ctrl-esc-shift so i don’t need to switch hands over to the keyboard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206349",
"author": "Valentin Heun",
"timestamp": "2010-11-01T20:55:49",
"content": "@Marco Thank you!@BitMage, yes it would be an epic gaming device. we have a internal firmware that let us play quake, wow and counter strike very well. You can focus two targets and switch perfectly between them. And you can do all movements with one hand. your second hand only needs to fire and do the rest.Sometime…… :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206355",
"author": "James",
"timestamp": "2010-11-01T21:07:28",
"content": "“This differs wildly from the 3D Connection device. The 3D Connection functions like a joystick, this one works like a track ball or mouse.”No it doesn’t, the only difference, to the user, is the 3DConnexion device does not continue to rotate, you just hold it rotated. This means less work for your fingers and fewer fiddly supports in the way of your object motion. The 3DC provides exactly the same full 6 DoF motion, it just isn’t as fiddly.Sorry, cool looking thing but seems like a solution to a problem that doesn’t exist, or rather that has already been solved by a simpler device.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206359",
"author": "Arc",
"timestamp": "2010-11-01T21:49:19",
"content": "I agree his is by far not new technology just a new shape,I have been using a space mouse for years for cad (over 5 years) it has all the same motions in a far more practical and simple mechanism, Very intuitive and easy to use, has sporting software for 3d programs and cad programs, visit these site if you are interested…http://www.3dconnexion.com/http://www.3dconnexion.com/products/what-is-a-3d-mouse.htmlhttp://en.wikipedia.org/wiki/3Dconnexionand best of all they are available dirt cheap on eBay take a look! It will change your life if you work on cad for your job.Cheers,Arc",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206361",
"author": "Valentin Heun",
"timestamp": "2010-11-01T21:54:04",
"content": "@James Rotation is the task you perform most while working on free form modeling.And this little difference is a major step.Because you have a intuitive and natural interaction with your work that gives you all the benefits your finger have. They are able to rotate. They are also able to rotate or make translations. Both very precise and separated from each other without failure. This is not possible with the 3DConnexion device. Your hole hand is doing the rotations and translation with the same finger position. you can not separate and you can not use your beautiful interface called human hand (fingers and thumbs) in any way it can be used.The simpleness is 100 % of its usefulness.We also did tons of 3D-Prints for a perfect suspension that gives you the maximum freedom you can have for rotations.Any little part from sensors up to springbodys is optimized in a way, that you have maximum freedom in rotating the ball.This kind of optimizing was not able without arduino, teensy, processing and a 3d-printer. It just speeds up the hole development. Just sketch something and look if its better then the one before. There has been one point we even make smaller parts we could snap in to the bigger once for the suspension holder that let us print faster new versions of it.Its just insane how fast you can work with those open-source technologies. The best thing is, Designers and engineers can work hand in hand with them. LOVE IT.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206362",
"author": "Addidis",
"timestamp": "2010-11-01T21:54:16",
"content": "I Think the novel part of this , is he went from building lights that could well end a life (lol) using an arduino a garbage can , and a rubbermade box to making a marketable device using the skills he acquired.Even you nay sayers probably can’t honestly say you would turn one of these down.Nice work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206364",
"author": "Addidis",
"timestamp": "2010-11-01T22:04:54",
"content": "dur wrong light , but same diff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206370",
"author": "James",
"timestamp": "2010-11-01T22:16:20",
"content": "@Valentin HeunNot wishing to be contrary or difficult but you can rotate and translate separately on the 3DC – I do it day in day out with various 3D packages? I can’t endlessly rotate with my fingers, no, but I’ve no need to – rotational pressure on the 3DC provides endless rotation in whatever axis I choose. Sure I can’t “walk” my fingers round the 3DC but I don’t need to, I can do exactly the same on-screen motion without moving my fingers more than 2mm. If I want to rotate it I keep my fingers pretty much still and rotate the top of the 3DC in whatever orientation I choose. If I wish to translate it I push/pull/slide it whichever way I want. If I want to do both at the same time I can do that too, I just twist and push lightly. I don’t see what yours does over the 3DC – it has exactly the same functionality but with less finger motion?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "206449",
"author": "Caleb Kraft",
"timestamp": "2010-11-02T02:07:09",
"content": "@Valentin,I, for one, think it is awesome. I was a professional in the 3d field for a few years and always hated the input options. I currently work with 3d connection devices and find them quite awkward.@all about hand fatigue. yeah, its an issue with ALL 3d positioning devices. you generally reach over, adjust, then move your hand back to your keyboard. I never liked them much for modelling, but texturing supplies the right timing for them to be quite nice. I work with several engineers that use the 3dconnexion ones religiously.",
"parent_id": "206370",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "206371",
"author": "James",
"timestamp": "2010-11-01T22:19:42",
"content": "In fact, I’m not being a naysayer, I’d love to see what benefit it gives, but I just can’t see it. I’d happily be shown something that I can’t do on my 3DC that you can do with that?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206378",
"author": "Valentin Heun",
"timestamp": "2010-11-01T22:33:12",
"content": "@James, I would love to just give you a presentation. I think since your working for years with your device you just should hold ours in your hand and look for your self how it is working.Your not by any chance in germany, boston or San Francisco?We have been able to give more than 50 small presentations to professional 3d-artists on a tour here in germany and even those who know the 3DC device said this one is much more intuitive and nicer to work with. Everyone got the concept during a 1 minute it needs hours to learn how to use the 3DC Devices. I also think once your used to it and it is best for your workflow, there is no reason to switch to something else. Never change a…….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206379",
"author": "Valentin Heun",
"timestamp": "2010-11-01T22:34:49",
"content": "I mean once your used to a 3DC Device.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206380",
"author": "anon",
"timestamp": "2010-11-01T22:43:02",
"content": "it might be nice (useful in some cases) if the ball could be replaced with a real 3D model of the object (printed on a 3D printer)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206393",
"author": "James",
"timestamp": "2010-11-01T23:09:04",
"content": "I’m in the UK, which is a shame. I think I understand how it works, and I feel it’s pretty much the same as the 3DC but with a moving ball rather than a resistive spring-loaded “top hat”, I’m just curious as to what the benefit of that is, but I think it’s possibly just personal preference. The 3DC was a revolution in 3D modeling, for me, but I’m always game to see improvements!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206401",
"author": "Valentin Heun",
"timestamp": "2010-11-01T23:35:33",
"content": "From the perspective of a 6 Dof interface, there is no difference, both are 6 Dof interfaces.But B/W and Color Movies are both still Movies. The little difference is the Color. Stories can be told in both.For some B/W is best for others don’t. We gave another possibility to work at lets see if its color? :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206402",
"author": "Maroc",
"timestamp": "2010-11-01T23:37:12",
"content": "the ball needs to be bigger softball or baseball sized",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206409",
"author": "The Hierophant",
"timestamp": "2010-11-02T00:10:27",
"content": "Only Windoiws/Mac compatibility mentioned on the website, nothing for free or open Operating systems.No mention whatsoever of When/where and for how much it will be available.FAIL!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206417",
"author": "therian",
"timestamp": "2010-11-02T00:37:10",
"content": "why people dont learn from history ? It was proven countless # of times that any input device that require user to keep hand in mid air fail miserably because of intolerable pain in muscles just after couple minutes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206484",
"author": "Mr. N. Required",
"timestamp": "2010-11-02T04:36:37",
"content": "Therian is right – any device that requires the hand to be held in the air, without a rest pad is doomed to failure. Light pens were the best example.Anyway, this #D controller is not too much different from the SpaceBall which has been around for many years. I must have seen it 20 years ago on an Apollo workstation I think.Updated versions are still sold:http://www.vrlogic.com/html/3dconnexion/space_ball.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206493",
"author": "RBRat3",
"timestamp": "2010-11-02T05:16:44",
"content": "Hmm id probably try a novint falcon mouse before this one for 3d work. Id like to be able to have more room for movement rather than a pressure sensor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206501",
"author": "Whatnot",
"timestamp": "2010-11-02T05:30:54",
"content": "Reminds me a bit of the novint falcon controller.I think the critique about holding your hand in the air being so tiring ignores the fact that you can see that the arm and much of the wrist is on the table, and with the 3D-connexion spacenavigator you need to have your hand above it to, although I admit I think the spacenavigator seems more comfy.As for the video, it’s odd that they demo it with a lefthander (I assume from seeing the manipulation of both the object and the drawing simultaneously), since that sort of makes it seem odd and less appealing to righthanders and those are in the majority.@nomad You made good points except for one detail: the 3D connexion devices let you select if you wish to move the object or space/camera, it’s not just one choice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206502",
"author": "Whatnot",
"timestamp": "2010-11-02T05:33:59",
"content": "@RBRat3 I see it made you think of the falcon too, but that’s not a 3D mouse for working on stuff, it’s a gamecontroller, with forcefeedback – which is a big part of the appeal of course.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206510",
"author": "RBRat3",
"timestamp": "2010-11-02T06:10:46",
"content": "Yea Its main selling point is for gaming but I dont see why you couldent use it for 3d work, It is a 3d mouse it uses an x,y,z axis 4in of movement all ways.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206570",
"author": "strider_mt2k",
"timestamp": "2010-11-02T09:45:53",
"content": "The fact that we’re quibbling over the design speaks volumes for the well thought out and complete nature of this project!Awesome",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206575",
"author": "smoker_dave",
"timestamp": "2010-11-02T09:51:39",
"content": "If you lay the thing on it’s side then your wrist wouldn’t be at such an awkward angle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206603",
"author": "Merrick",
"timestamp": "2010-11-02T11:41:08",
"content": "Is it me, or does this look like the top of a Voight Kampff machine?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206673",
"author": "Gert",
"timestamp": "2010-11-02T16:23:20",
"content": "SOLD! Where to i buy this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206823",
"author": "keystoneclimber",
"timestamp": "2010-11-02T20:51:48",
"content": "One thing to note for anyone who says using a 3DC is awkward is that the axes are configurable. I found the default installation settings for the axes awkward, but after adjustment, they are now an extension of my wrist. This is kinda like preferences for the controller in an FPS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206864",
"author": "Whatnot",
"timestamp": "2010-11-02T23:55:05",
"content": "@keystoneclimber I was initially a bit confused when using a 3DC spacenavigator primarily because of the zoom, but when you just imagine the knob is the object you see on the screen then it immediately makes sense, you pull it towards you to get closer and push it away to move it away, up is up left is left",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207001",
"author": "skullone",
"timestamp": "2010-11-03T04:15:33",
"content": "This looks like a SpaceOrb. Was around in 1995, and you can get them for like $50 on ebay still. Serial interface though.Used to get a free SpaceOrb with games like Descent or Forsaken.http://en.wikipedia.org/wiki/SpaceOrb_360",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,345.718225
|
||
https://hackaday.com/2010/11/01/typewriter-as-io-lets-you-play-zork/
|
Typewriter As I/O; Lets You Play Zork
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"arduino",
"resistor",
"solenoid",
"typewriter",
"zork"
] |
Okay, for many the fact that
this typewriter plays Zork
on paper instead of a CRT is the fascinating part of this hack. But we love the implementation that makes the keys of the device an input and output.
The electric typewriter has been fitted with a solenoid for each key (wow, that’s a lot of work). In the image above you can see they are housed on plywood platforms behind the typewriter and connect using a piece of mono-filament fishing line. This flexible connection means the solenoids have no adverse effect when
you
want to do the typing instead of the Arduino which drives the solenoids. [Johnathan M. Guberman] took advantage of this, adding a resistor for each key. When depressed the key completes a circuit with the resistor, acting as the input. In this way, you can play Zork with a piece of paper as the monitor, typing for the input, and watching the typewriter magically pound out responses. See it happen after the break.
[vimeo=http://vimeo.com/16311288]
[via
Laughing Squid
and
Make
]
| 26
| 26
|
[
{
"comment_id": "206261",
"author": "Addidis",
"timestamp": "2010-11-01T18:14:56",
"content": "filed under “How to kill trees at an alarming rate”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206262",
"author": "xythobuz",
"timestamp": "2010-11-01T18:15:56",
"content": "That’s so awesome, I’m out of words…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206276",
"author": "thesmoke",
"timestamp": "2010-11-01T18:27:22",
"content": "Wow, thats one way to show off your big GEEKENES.133T points to you. Just needs to be smaller. Portable, finished, and for sale in mass quantities.LOL",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206277",
"author": "andrew",
"timestamp": "2010-11-01T18:28:40",
"content": "I’ve been looking for solenoids like that for a while — does someone have an idea where those came from?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206282",
"author": "lee",
"timestamp": "2010-11-01T18:33:32",
"content": "This reminds me of Fringe!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206283",
"author": "Tam",
"timestamp": "2010-11-01T18:35:58",
"content": "Now let’s play nethack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206285",
"author": "mike",
"timestamp": "2010-11-01T18:37:37",
"content": "Meh, Maybe if it played amnesia.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206286",
"author": "Trollicus",
"timestamp": "2010-11-01T18:39:17",
"content": "Warning, if you play this in the dark you might get eaten by a Grue!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206295",
"author": "rmiller021",
"timestamp": "2010-11-01T19:02:49",
"content": "andrew$0.79 eachhttp://www.goldmine-elec-products.com/prodinfo.asp?number=G16036",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206305",
"author": "rmiller021",
"timestamp": "2010-11-01T19:20:44",
"content": "One thing to note, the pistons are not attached.the author appears to have solved this, withthe raised lip in front them to stop the pistons from flying out when the electromagnet releases.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206308",
"author": "Jonathan Badger",
"timestamp": "2010-11-01T19:27:47",
"content": "Of course this is really just a return to what terminals used to be — before video monitors, computer terminals were teleprinters.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206312",
"author": "James Lewis",
"timestamp": "2010-11-01T19:30:43",
"content": "This totally makes me think of 50s and 60s era Science Fiction (like Star Trek.) Whenever a computer would output, it always sounded like a fast-typewriter.It makes sense. At the time people probably imagined automating the existing typewriters similar to how this hack works.Very cool to watch.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206316",
"author": "Mikey",
"timestamp": "2010-11-01T19:41:18",
"content": "Waaaay to slow. Printer terminals is what I was thinking too, but I thought they were faster!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206322",
"author": "mjrippe",
"timestamp": "2010-11-01T19:50:49",
"content": "I remember being a kid and using my Mom’s account on the Dartmouth College Timeshare (DCTS) network via an acoustic coupler modem and a wide carriage printer terminal – y’know with the green and white bar tractor feed paper? I used to spend hours playing text based games and then bring the printouts home to re-live them offline! This project is a nice return to the days of yore…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206377",
"author": "Luke",
"timestamp": "2010-11-01T22:33:01",
"content": "Back in the early days of micro-computers, converting an IBM Selectric typewriter was a high-end alternative to the old ASR teletype as an I/O device. They didn’t need any solenoids; the hack was to tap into the circuit and fire the type ball directly (e.g.http://books.google.ca/books?id=ZD0EAAAAMBAJ&pg=PA13&lpg=PA13&dq=selectric+conversion+printer&source=bl&ots=aa4MoXHNlD&sig=-BU4bQ6w_u-lsiVVYhb1oPfrWV4&hl=en&ei=OD_PTLHnEtDTngf-6aDlDw&sa=X&oi=book_result&ct=result&resnum=3&ved=0CCMQ6AEwAg#v=onepage&q=selectric%20conversion%20printer&f=false)In comparison, I can’t say I’m too impressed with this hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206395",
"author": "techbender",
"timestamp": "2010-11-01T23:26:56",
"content": "Anyone else planning a haunted type-writer/ghost communicator for next Halloween?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206416",
"author": "Me",
"timestamp": "2010-11-02T00:36:52",
"content": "@James Lewis, that reminds me of what Henry Ford is supposed to have said: “If I had asked my customers what they wanted, they would have said a faster horse.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206458",
"author": "r_d",
"timestamp": "2010-11-02T02:27:32",
"content": "Is anyone else reminded of Fringe?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206472",
"author": "Aviator747",
"timestamp": "2010-11-02T03:30:40",
"content": "Actually I was reminded of a old tv program called “read all about it”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206756",
"author": "Zom-B",
"timestamp": "2010-11-02T18:22:59",
"content": "Bummer. When I read ‘Typewriter … lets you play’ I thought playing music, not a long-deprecated game.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207351",
"author": "mowcius",
"timestamp": "2010-11-03T22:33:54",
"content": "Luke, I love the advert on that page:64K static RAM, low power (2 Amps), $995",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207663",
"author": "Drewbacca81",
"timestamp": "2010-11-04T15:55:22",
"content": ". . . now if it played the old Infocom Hitchhiker’s game. . .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207677",
"author": "cyplesma",
"timestamp": "2010-11-04T16:37:52",
"content": "reminds me of an 80’s panasonic typewriter I used to own, it had a rs232 port on it so you could use it as a printer. printed quite a few resumes on it that was saved on an APPLE IIc. No you didn’t want to use the dot matrix printers of the day to print a resume.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "253136",
"author": "phire",
"timestamp": "2010-12-05T22:40:47",
"content": "Hmm, I have an electronic typewriter that I’ve been planning to mod some day.This sounds like a great idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "254344",
"author": "James",
"timestamp": "2010-12-06T02:49:56",
"content": "THIS.IS.ASTOUNDING.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "299259",
"author": "Keith D",
"timestamp": "2011-01-08T19:08:03",
"content": "If this typewriter conversion is available for sale, email me atdensmore@kaponline.comthanks",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.001576
|
||
https://hackaday.com/2010/11/01/im-me-graphic-manipulation-using-sprites/
|
IM-ME Graphic Manipulation Using Sprites
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"animation",
"array",
"perl",
"sprite",
"travis goodspeed"
] |
Here’s
a study in sprite animations
that [Travis Goodspeed] put together. He’s working with one of his favorites, the pink IM-ME device that
he’s been hacking on for a while
now. But if you don’t have this hardware that shouldn’t discourage you. There’s a lot to be learned from his methods which will translate to any microcontroller working with a graphic LCD.
He starts with a 24-bit PNM sprite that includes three frames of his desired animation. From there he needs a way to store the data for use with 8-bit microcontrollers. He chose to write a Perl script that will translate the image format into a 1-bit map. Each frame of the animation takes up a column width that is a multiple of 8 for easy retrieval by the processor. This translation into a C array, and the accompanying code that translates it into data for the frame buffer is the key to the animation process. What is he shooting for? A sprite-based video game on the handheld.
| 7
| 7
|
[
{
"comment_id": "206239",
"author": "JohnPower",
"timestamp": "2010-11-01T17:10:09",
"content": "umm… where’s the link to the actual article of Travis?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206240",
"author": "Daid",
"timestamp": "2010-11-01T17:15:05",
"content": "http://travisgoodspeed.blogspot.com/2010/11/bitmapped-sprites-on-girltech-imme.htmlHere you go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206242",
"author": "Gdogg",
"timestamp": "2010-11-01T17:16:20",
"content": "haha it’s missing, but I found it on his blog.http://travisgoodspeed.blogspot.com/2010/11/bitmapped-sprites-on-girltech-imme.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206247",
"author": "Mike Szczys",
"timestamp": "2010-11-01T17:19:46",
"content": "Grrr…. sorry about that. Fixed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206250",
"author": "mdonoughe",
"timestamp": "2010-11-01T17:30:18",
"content": "Doesn’t Gimp write out a byte array like this if you tell it to save an indexed image as a .h file?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206254",
"author": "mdonoughe",
"timestamp": "2010-11-01T17:39:09",
"content": "Oh now that the article is there I see that the Perl script generates packed arrays, which the Gimp does not do afaik.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206616",
"author": "Joby Taffey",
"timestamp": "2010-11-02T12:55:58",
"content": "Using a Bus Pirate, you can sniff the SPI traffic to the LCD and grab the images back out.http://blog.hodgepig.org/2010/11/02/zombie-extraction/",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.046248
|
||
https://hackaday.com/2010/11/01/halloween-house-has-been-known-to-burst-into-song/
|
Halloween House Has Been Known To Burst Into Song
|
Greg R. Jacobs
|
[
"home hacks"
] |
[
"halloween",
"House",
"Michael Jackson",
"Musical",
"Thriller"
] |
Just a day after Halloween and a replacement for Michael Jackson has been found, in the form of a very talented
musical house
. Not only does this house come close to a Michael Jackson dance routine but can mimic the voice quite well. The house has also been known to do the
Monster Mash
as well as
Sandstorm (Techno) by Darude
. YouTube’s
KJ92508
has uploaded his Halloween conquests for all to enjoy. As of yet, he has not made a how to or even done a walk through video in broad daylight but here is to hoping he will due to numerous requests for a sneak peak. He has mentioned that he used “4 singing pumpkin faces, tombstones, hand carved and blow mold pumpkins, strobes, floods and thousands of lights.” I look forward to what is in store for next years decor. Just another example of what technology in everyday life and a little elbow grease can do. Be sure to check out the video of “Thriller” as done by this house after the break.
[youtube=http://www.youtube.com/watch?v=GUAV_1jBJB4]
We know that he’s using a commercial product called Light-o-Rama, but not much else. Anyone got some info?
| 24
| 24
|
[
{
"comment_id": "206225",
"author": "Chris",
"timestamp": "2010-11-01T16:18:22",
"content": "That is pure awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206228",
"author": "Bill",
"timestamp": "2010-11-01T16:23:53",
"content": "“We know that he’s using a commercial product called Light-o-Rama, but not much else. Anyone got some info?”Assuming he is using a Light-o-rama system, that would pretty much sum it up. Light-o-rama is a system that lets you sync up music to light control modules. The software is very easy to use, and so are the modules. You can download the software for free to play with, but you have to pay for the serial controlled modules.The system has been around for a long while, and is behind pretty much any music + lights house you find on youtube. Including the one that was made into a beer commercial a few years back. It’s like a home use DMX system & software.As cool as this is, he’s using a commercial product for it’s exact purpose. There’s not a reason in the world to call this a hack.What would be cool to see, is if anyone did this using open source DMX modules and software. That is something HAD would be keen to post.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206229",
"author": "Derek",
"timestamp": "2010-11-01T16:24:10",
"content": "My First Second! Thats really cool, wounder time frame to set that up?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206230",
"author": "roula",
"timestamp": "2010-11-01T16:27:55",
"content": "“This video is not available in your country” :-(",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206232",
"author": "Bill",
"timestamp": "2010-11-01T16:40:08",
"content": "Another video says he’s using 112 channels of Light-O-Rama. This guy’s talented.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206233",
"author": "????",
"timestamp": "2010-11-01T16:46:32",
"content": "At first I was like snore, seen it. Then at 1 min into it, I was like holy shit there’s a face. Then the chorus came in and I was like pure win.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206237",
"author": "Jake",
"timestamp": "2010-11-01T16:57:16",
"content": "LOL @ The write-up asking for a how-to. What’s up with that? Is there really that little creativity left in your minds? What ever happened to figuring it out yourself? Asking for a “how-to” is like asking for someones hard-earned homework solutions so you can copy them and claim them as your own. WTF! If he wants your lazy ass to know exactly how he did it, he’ll tell you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206238",
"author": "Bill",
"timestamp": "2010-11-01T17:03:05",
"content": "There’s not going to be a How-to because there’s nothing to it. It would be: Plug light into control box, plug control box into computer, program sequence. Done. That’s how the Light-o-rama system works. No hacking required. The daylight ‘behind the scenes’ would be a bunch of extension cords and LOR control boxes.What this guys gets mad props for is the creative ability to program the sequence so well, setting up a good scene, and for the cool faces. Although singing faces is rather common for LOR systems now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206241",
"author": "BeatJunkie",
"timestamp": "2010-11-01T17:15:52",
"content": "… video not available in your country … >:(f*ck you music industry!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206248",
"author": "buzzkill",
"timestamp": "2010-11-01T17:22:23",
"content": "Umm .. check out the forums athttp://www.doityourselfchristmas.comThat is where the DIY crowd collaborates, designs, and builds the LOR alternatives. We have DMX and ArtNet capable systems, propreller based wireless controllers, etc. If you want to control a light, scene, prop, water fountain, DIYC probably has a circuit that can do it. Oh, and yes, with DMX, we can even run LOR hardware too.I use the DIYC REN 24’s in series for my Halloween haunt. This guy will probably change out the pumpkins for mini trees, change the programming profile, and be good to go for Chistmas.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206255",
"author": "James",
"timestamp": "2010-11-01T17:53:40",
"content": "5 mins. That’s what I’d give any of that equipment before it was lifted and being sold on gumtree, if it were round here.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206259",
"author": "Necromant",
"timestamp": "2010-11-01T18:02:02",
"content": "Sony blocked that for cpyright infringenment for russia. Damned copyrighted bastards.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206284",
"author": "Hackius",
"timestamp": "2010-11-01T18:37:15",
"content": "Blocked video in your country",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206310",
"author": "Nomad",
"timestamp": "2010-11-01T19:30:19",
"content": "Please reupload the video somewhere else.There are lots of video portals that aren’t giving a shit for copyrights.OR: There are lots of nice tracks for your videos that are not copyrighted by some dumbass moneymakers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206315",
"author": "mixadj",
"timestamp": "2010-11-01T19:40:48",
"content": "The house also does or has done “pump-it” by BEP and “This is Halloween”………Dam……….http://www.youtube.com/watch?v=9ZmurU51DXU&feature=related—pump ithttp://www.youtube.com/watch?v=INsSU8Jnx-4&feature=related–This is Halloween",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206329",
"author": "Dheath",
"timestamp": "2010-11-01T20:04:32",
"content": "Blocked in your country too.Seems that the http proxies even won’t work now. But real proxies still do.I hate this pointless blocking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206344",
"author": "JPElectron",
"timestamp": "2010-11-01T20:34:27",
"content": "Why use bit.ly or another shortening service when you are linking in an article??? – this just makes the content in-accessible to millions of people behind corporate filters, so frustrating…Here’s the plain YouTube link to those who can’t figure it out:http://www.youtube.com/results?search_query=KJ92508&aq=f",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206347",
"author": "wouter",
"timestamp": "2010-11-01T20:50:43",
"content": "saw this one yesterday on facebook via “geeks are sexy” and it’s zo damn cool.. the sync is super!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206412",
"author": "julklappstips",
"timestamp": "2010-11-02T00:19:03",
"content": "Lol, this is awesome! How do people find the time to do all this i wonder?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206504",
"author": "Gregman",
"timestamp": "2010-11-02T05:45:34",
"content": "Needs flamethrowers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206633",
"author": "Hacksaw",
"timestamp": "2010-11-02T14:26:03",
"content": "damn.that is all I have to say.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207012",
"author": "Kozzy",
"timestamp": "2010-11-03T05:33:27",
"content": "You can also see it here if it’s blocked for you on youtube:http://www.collegehumor.com/video:1943137",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "491272",
"author": "dphunct",
"timestamp": "2011-10-26T12:50:50",
"content": "from the light-o-rama website:“Kevin Judd Riverside, CA United States. My 2010 entry is not your traditional Christmas display. My family and I are more into decorating for Halloween although we also do Christmas, but on a much smaller scale. My show consist of 4 singing faces (each independent of each other), hand carved and blow-mold pumpkins, tombstones, strobes, lightsticks, floods and approx. 12,000 lights (which is really not a lot compared to others) of 3 different colors…Orange, Red and Blue. The sequencing of just the face movement took just as long as sequencing the rest of the lights. It took me a good 8 to 10 hrs to sequence per minute of the song. I used two (2) 1602W and seven (7) CTB16PC controllers totaling 140 channels (4 ch’s not used). This is my 3rd year using Light-O-Rama and couldn’t be any happier with its products and service. The music I used for my entry, “This is Halloween” is from the movie “The Nightmare Before Christmas”. Marilyn Manson did a cover of the original song. This year I posed 6 different videos of my shows on YouTube and received over 2.2 million hits with the “Thriller” video itself receiving 1.2 million hits. My “This is Halloween” received so far 415,000 hits. This has been much more than expected and my videos has been broadcast in Japan and the UK for crazy foreign videos. You can see more of my Halloween videos athttp://www.youtube.com/user/KJ92508Thanks for your consideration.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "504079",
"author": "Julklappstips",
"timestamp": "2011-11-09T13:44:29",
"content": "Can’t be seen in sweden :(",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,345.642114
|
||
https://hackaday.com/2010/10/31/large-magnets-spark-on-halloween-who-knew/
|
Large Magnets Spark On Halloween, Who Knew?
|
Jakob Griffith
|
[
"Misc Hacks"
] |
[
"acrylic",
"arduino",
"brain",
"foam",
"hot knife",
"led",
"pwm"
] |
This
overly large magnet
certainly completes the mad scientist look (for an even crazier look, take a jar of water with red food coloring and place in one large cauliflower, instant brain in a jar).
The base of the magnet is painted foam cut with a makeshift hot-knife; to get the magnet sparking [Macegr] laser
etched acrylic
with a fractal pattern and embedded LEDs in the ends of the acrylic. An Arduino handles the flashing LEDs and also produces a 60Hz PWM pulse for the spark’s hum. The end result is satisfyingly mad, and while practicing your evil ominous laugh catch a video of the magnet after the jump.
[youtube
http://www.youtube.com/watch?v=L6UlE1NH4iQ%5D
| 28
| 28
|
[
{
"comment_id": "205920",
"author": "Parker",
"timestamp": "2010-10-31T19:20:20",
"content": "Now go up behind someone and wait.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205921",
"author": "tjb",
"timestamp": "2010-10-31T19:20:42",
"content": "Very cool. Only change I would make is to hide the electronics inside the prop.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205923",
"author": "tulcod",
"timestamp": "2010-10-31T19:29:34",
"content": "Very cool. Only change I would make is to fire real sparks instead of simply using a few lights. Great job, but actually scaring the heck out of people every time you push that lovely little button seems like an honestly mighty idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205925",
"author": "LyleHaze",
"timestamp": "2010-10-31T19:39:01",
"content": "Nice, but can you get it past the T.S.A at your local airport?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205927",
"author": "biozz",
"timestamp": "2010-10-31T19:40:01",
"content": "duh, magnets arc (not spark) on Halloween and the equinoxits basic science!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205928",
"author": "Ian Tester",
"timestamp": "2010-10-31T19:40:26",
"content": "So that’s how magnets work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205932",
"author": "shaggy",
"timestamp": "2010-10-31T20:18:15",
"content": "@Ian TesterDon’t trust him, he looks like a scientist. I have it on good authority that they lie and will make you angry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205937",
"author": "Bill",
"timestamp": "2010-10-31T20:59:23",
"content": "I agree with tulcod. I like this very much, which is why I submitted the tip along with my LED labcoat mentioned in the first group of links today. But when I build mine next year, it will be real sparking via flyback transformers. I am a Electrical Engineering kind of mad scientist after-all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205942",
"author": "RBMK",
"timestamp": "2010-10-31T21:27:54",
"content": "It is nice, but i cant’t resist to say: put a badass MARX GENERATOR in that!That would be AWESOME!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205943",
"author": "Maxwell Smart",
"timestamp": "2010-10-31T21:28:45",
"content": "That’s the second biggest magnet I’ve ever seen!…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205964",
"author": "Amos",
"timestamp": "2010-11-01T00:03:10",
"content": "LOL @ previous post",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206009",
"author": "Bob",
"timestamp": "2010-11-01T01:53:25",
"content": "Or put the arc points from a Taser in there… THAT would rock!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206041",
"author": "Davo1111",
"timestamp": "2010-11-01T03:26:43",
"content": "thats awesome",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206054",
"author": "M4CGYV3R",
"timestamp": "2010-11-01T04:00:43",
"content": "Square wave on the PWM sounds off. It sounds nothing like an arc.Should have used a single piece of acrylic – the seams ruin the appearance or sparks.Way overkill on the electronics. You could probably salvage the necessary parts from a singing greeting card or something, instead of using $60+ worth of arduino crap to flash some LEDs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206058",
"author": "grenadier",
"timestamp": "2010-11-01T04:15:38",
"content": "He should’ve used a 24v battery hooked to a ZVS/AC Flyback combo fed into a Cockcroft–Walton generator.Then you get REAL sparks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206078",
"author": "do geeks drink?",
"timestamp": "2010-11-01T05:06:59",
"content": "Only change I’d make would be internalizing the electronics.On all those saying real sparks:Halloween= dark crowded places, with many people wearing flowy, lacy, or otherwise high surface area, flammable costumes. Also, foam burns. Also also, drunk people poke at things, including bright sparks. Using a real transformer would be great if he’s running a haunted garage, but if he’s going out it would be the worst idea in the world.On those saying use a single acryllic:That’s the most obvious way to do it, and was surely considered. However, he would not be able to isolate the sparks then. No way he upped the parts count and working time that much without valid reason.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206105",
"author": "Alex",
"timestamp": "2010-11-01T06:38:17",
"content": "It would’ve also been cool to charge that thing with static. Also, simpler and more realistic.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206155",
"author": "Bon Vilena",
"timestamp": "2010-11-01T09:33:12",
"content": "@M4CGYV3R:So let’s see your creation. Or are you just dissing other peoples work without ever doing something yourself?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206161",
"author": "tulcod",
"timestamp": "2010-11-01T09:59:58",
"content": "for those of you wishing to build one firing real sparks, please realize that you’d need to generate roughly (30cm)(30kV/cm)=900kV (), which is slighty bigger than what you’d find in your computer’s PSU. oh, and at the technical university of delft, where i’m studying, they can generate the highest voltages in the country, and those max out at just a couple of megavolts IIRC. as a possible solution, you could release helium in the area where you want to spark, which has a dielectric strength of just 1500V/cm. or perhaps hydrogen, which i think has a lower dielectric strength as well and will also give you an extra “BANG”.the dielectric strength of air is roughly 30kV/cm, and i guessed the 30cm.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206173",
"author": "Bob",
"timestamp": "2010-11-01T10:43:22",
"content": "Why would a magnet have sparks anyway?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206176",
"author": "wouter",
"timestamp": "2010-11-01T10:51:19",
"content": "lol at the marx generator.. that would be awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206184",
"author": "fartface",
"timestamp": "2010-11-01T12:30:51",
"content": "Tip, polish the edges of the plexiglass to reduce edges lighting up and then paint the edges black to further reduce it. It will make it look a lot better.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206192",
"author": "M4CGYV3R",
"timestamp": "2010-11-01T13:28:02",
"content": "@Bon:What do you want to see mate? I don’t make a habit of building fake 3-foot styro magnets. I can build and take some pics of a blinking LED circuit if you’d like…I do, however, have a lot of experience etching acrylic for case mods and light fixtures(though I usually use tape and a media blaster).I also have many years experience in programming PIC/AVR/ARM micros, and I began tutoring in electronics and particle physics by the dean of the engineering school at a Big-10 university by the time I was 8.I built my first tesla coil/jacobs ladder when I was 9.Is this a job interview? Wheee!@fartfaceDo they sell bull-nosed acrylic? I’ve never seen it for sale, but I think that would be ideal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206205",
"author": "Anon",
"timestamp": "2010-11-01T14:15:44",
"content": "@M4CGYV3RYour point? And how do your ‘credentials’ justify you being such a nit-picky negative Nancy? How do you watch TV without getting upset about everything that doesn’t quite fit into your perfect world?For something that’s fairly original, and most likely built in a day, it’s pretty awesome.I’m mean, really, It’s a giant foam magnet that sparks and you are going to argue about how realistic the sparks are?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206231",
"author": "GRabo",
"timestamp": "2010-11-01T16:38:02",
"content": "Ummmmm, since when do magnetic fields spark????",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206235",
"author": "th0mas",
"timestamp": "2010-11-01T16:51:27",
"content": "Awesome.Oh, and everyone complaining what he should have done? Screw off. The difference between him and you is he built something. Go one-up him and video it, or stfu.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206462",
"author": "macegr",
"timestamp": "2010-11-02T02:53:04",
"content": "Yeah it’s overkill. I could have done it with an ATTiny, but didn’t want to build up a PCB on limited time. The acrylic is separated because otherwise all the sparks would light at the same time. Painting the edges black would have improved things and an experiment was done with a sharpie, but time was a factor again. Buzzing was close enough, I tried some 1-bit audio a la Roman Black, but there was too much hiss. It was cool anyway, got lots of comments on the street…none negative :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206767",
"author": "zeropointmodule",
"timestamp": "2010-11-02T18:58:03",
"content": "@tulcod yeah, you can kludge a plasma globe using helium in a jar, this has been around since the early 1960’s…the best bet according to Bill Beaty is to use a mixture of pure argon (the Ar+CO2 stuff does not work) and helium at 1 atm, making sure to seal the jar and vacuum it out for 24 hrs or so to remove all the gas poisoning agents released from the glue.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,345.787163
|
||
https://hackaday.com/2010/10/31/mechanical-mustache-envy/
|
Mechanical Mustache Envy
|
Jakob Griffith
|
[
"Wearable Hacks"
] |
[
"brass",
"copper clad",
"mechanical",
"mustache",
"steam punk",
"tension"
] |
While this
mechanical mustache
isn’t made for a Halloween costume, it certainly looks like part of one. Copper clad, brass, cable, and a few other bits come together in a similar style to
tension based hands
; the piece is then worn much like a Mardi Gras mask. To complete the rustic “old tyme” look [John] was after, the copper was tarnished using the vapor from a vinegar and salt solution. The finished assembly is
steam punk delicious
, but we’re saddened by the lack of steam punk eye brows to complete the look (or steam punk mutton chops, or steam punk goatee, or…)
[via
Boing Boing
]
| 8
| 8
|
[
{
"comment_id": "205907",
"author": "Andrew",
"timestamp": "2010-10-31T18:49:00",
"content": "“warn much like a Mardi Gras ”Come in guys….at least proofread and have someone else proofread your posts",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205908",
"author": "zool",
"timestamp": "2010-10-31T18:49:41",
"content": "I mustache you a question; wouldn’t this look great with a monocle?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205912",
"author": "Jakob Griffith",
"timestamp": "2010-10-31T18:57:03",
"content": "@Andrew, clever catch, thank you.Jakob GriffithHaD Team",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205916",
"author": "McSquid",
"timestamp": "2010-10-31T19:09:47",
"content": "@zool+1 for steampunk monocle",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205956",
"author": "Erik Johnson",
"timestamp": "2010-10-31T22:38:15",
"content": "Reminds me of Tik-Tok from return to Oz",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205959",
"author": "Jesus C",
"timestamp": "2010-10-31T23:15:13",
"content": "I really dislike the gross oxidation. People always take their steampunk creations too far in the finishing department.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206167",
"author": "UltimateJim",
"timestamp": "2010-11-01T10:24:34",
"content": "“Come in guys”Grammar nazi!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206328",
"author": "D_",
"timestamp": "2010-11-01T20:04:25",
"content": "@UltimateJim. Andrew Meant “come in Guys” Grammar critics ALWAYS proof read before they click on the sbmit button correct Andrew? ;) Anyway that misstep was bound to happen sooner or later. Stupid spell checkers never know what we meant to say.My impression is that bacl in the day exposed brass, copper was kept polished to a degree it would be called anal today. I would think to be true to the era the metal should shine, not artificially antique the metal. This reminds me that I have and old fire extinguisher to turn into a lamp before Christmas. I guess it would be steam punk, as the patina of the years will be kept intact.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,345.89192
|
||
https://hackaday.com/2010/10/31/even-more-halloween-links/
|
Even More Halloween Links
|
Caleb Kraft
|
[
"Hackaday links"
] |
[
"halloween"
] |
We know you just got a links post a couple hours ago, but more people tipped us off to some great Halloween stuff and we just couldn’t wait.
[Michael] came up with this fantastic idea for a
flying ghost
. He’s using a twin prop tilt rotor design to fly his ghost all over the neighborhood. It has a camera mounted on board and the footage is both fascinating and, toward the end, quite funny. Nothing beats chasing children down the street in first person from a flying ghost.
[Trey] wrote in to show off his
47 foot wide spider
. He made it himself out of black painters plastic that he heat welded together using a heat gun. In the video you can see his victim, a dummy mounted on a salvaged rotissierie.
[Floe] has been thinking about this one for quite some time. He finally decided to build his
flame throwing jack-o-lantern
, a concept we approve of. Using two servos, one to start a pilot light and one to spray a travel deodorant, it is pretty simple. He used a ceramic jack-o-lantern so it would be sturdy enough, and marginally less flammable.
Here’s a safer Jack-o-lantern for you. [Paul] wrote in to show us his LED synchronized Jack-o-lanterns. While they may not be ground breaking, we just love seeing that logo out in the wild. Maybe we’re just egotistical, maybe those toothpicks just brought back
fond memories
. Why didn’t we ever run that Jack-0-lantern carving contest? Oh well, maybe next year. You can see a video of it in action after we get it uploaded correctly to our youtube channel.
| 12
| 11
|
[
{
"comment_id": "205897",
"author": "Bill",
"timestamp": "2010-10-31T18:18:31",
"content": "Video was taken down:“This video contains content from mahalo.com, who has blocked it on copyright grounds.”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "205909",
"author": "Caleb Kraft",
"timestamp": "2010-10-31T18:51:01",
"content": "@Bill,DANGIT! there’s some option that I keep accidentally clicking when I upload that causes this… I’ll get it sorted.",
"parent_id": "205897",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "205899",
"author": "Bill",
"timestamp": "2010-10-31T18:23:17",
"content": "Also, I love the first link, although the video was obviously staged. C’mon, scare some kids for real!Also, it wasn’t the only flying ghost this year:http://diydrones.com/profiles/blogs/multicopter-spirithttp://diydrones.com/profiles/blogs/happy-halloween-1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205989",
"author": "Paul",
"timestamp": "2010-11-01T00:30:48",
"content": "Thanks for the mention HAD! I am inspired by other posts too, maybe interactive motion and flames? Maybe my kids are still too young for that…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206039",
"author": "Cindy Auligny",
"timestamp": "2010-11-01T03:25:03",
"content": "I’ve watched the video flying ghost. That’s clear, easy to make. The result’s so amazing. You know, although clearly that it’s made by someone, but sometimes, it’s scaring me lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206106",
"author": "Wes",
"timestamp": "2010-11-01T07:09:04",
"content": "Mad scientists bedazzle their lab coats with LED zig-zags and wear marquees around their necks?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206140",
"author": "smokie",
"timestamp": "2010-11-01T08:01:29",
"content": "Flame throwing jack-o-lantern FTW!! :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206204",
"author": "tom61",
"timestamp": "2010-11-01T14:14:38",
"content": "Are there more details on making the 47 foot wide spider? Or at least a good link to how to weld this type of plastic for air filled use?I was playing around with painters plastic room cover to make a hovercraft and figuring how to weld it together properly would be of great use. Google search is all over the place when searching for this kind of welding.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206397",
"author": "Trey",
"timestamp": "2010-11-01T23:33:57",
"content": "@tom61 The welding was pretty simple. Just line the pieces of plastic up with each other, then blast them with the heat gun until they melt together. The seams are the strongest when you melt them about 1 inch from the edge of each layer. I used the type of gun that uses an air compressor instead of a built in blower with a fairly fine tip. It’s very similar to the plastic welding gun available at harbor freight.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206404",
"author": "Wes",
"timestamp": "2010-11-01T23:43:30",
"content": "@Wes – You commented on the wrong post, idiot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206635",
"author": "tom61",
"timestamp": "2010-11-02T14:32:49",
"content": "@Trey I never encountered a hot air gun like that before. It makes much more sense now that I don’t have an image of an industrial hair dryer style gun trying to do the welding.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207748",
"author": "tyler s",
"timestamp": "2010-11-04T20:18:19",
"content": "for the flame throwing pumpkin which type igniter did you use?? and where did you get it?? im trying to build a flame thrower that is built into a glove. kind of like the pyro in the xman movie. so far i have it completed but i still have to light it initially with a hand held lighter. if you could let me know how you kept the flame going at a low rate that would be great too. thanks :D",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.286788
|
||
https://hackaday.com/2010/10/31/keyboard-concept-uses-magic-trackpad/
|
Keyboard Concept Uses Magic Trackpad
|
Mike Szczys
|
[
"Peripherals Hacks"
] |
[
"apple",
"kernel",
"keyboard",
"linux",
"magic trackpad",
"multitouch",
"nail polish"
] |
This is a keyboard alternative
that [Sebastian] is building from two Apple Magic Trackpads. The multitouch devices are a good platform for this because they’re designed to pick up several events at the same time. To prototype the locations of the keys he’s using printable transparency sheets. He gives you a sense of where the home row is with a dab of clear fingernail polish that you can feel with your digits.
He may laser etch these pads once the key location is just right. This should give a bit of texture in itself and do away with the need for nail polish but we still like the ingenuity of that solution. The device is being developed in Linux, with some kernel hacking to handle the devices. We asked about source code and [Sebastian] is hesitant to post it because he’s been getting a lot of kernel panics. It sounds like once he cleans things up a bit he’ll share his work.
Don’t forget, there’s
an easy hack to do away with the batteries
in these things.
| 6
| 6
|
[
{
"comment_id": "205876",
"author": "Anonymous",
"timestamp": "2010-10-31T16:35:08",
"content": "Two $70 trackpads to emulate a keyboard?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205890",
"author": "the_author",
"timestamp": "2010-10-31T17:41:58",
"content": "Yep, but that still makes it cheaper than a kinesis,a comfort keyboard, or the fingerworks touchstream which this is meant to emulate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205892",
"author": "Abbott",
"timestamp": "2010-10-31T17:50:17",
"content": "Looks pretty sweet actually. reminds me of lots of futuristic keybaords on movies and such. good luck!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205896",
"author": "zac",
"timestamp": "2010-10-31T18:14:54",
"content": "Sadly Apple already owns all the patents to this, since they bought Fingerworks a number of years ago. Also it’s very difficult to type quickly without being able feel edges of physical keys. I’ve had a touchstream for many years, and I can still type faster and more accurately on a traditional keyboard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205922",
"author": "the_author",
"timestamp": "2010-10-31T19:28:15",
"content": "Patents don’t prevent you from hacking something for your own personal use. I agree that touch typing without feedback is difficult. Since capacitive touch or whatever technique used by the magic trackpad only requires a trivial amount of pressure, perhaps a different approach might work. What if one built a keyboard with mechanical keys where the separation between the surface of each key was minimal, so the overall surface of the keyboard was almost continuous. Each key top would be a mini touch surface and you could use interpolation and smoothing to compensate for the jumps created by the transition between keys. This would probably be horribly expensive but then you’d have both integrated multitouch and mechanical feedback for typing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206209",
"author": "Rich T Kirk",
"timestamp": "2010-11-01T15:10:21",
"content": "I can not help thinking of the MacBook Wheel…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.454889
|
||
https://hackaday.com/2010/10/31/hackaday-links-october-31-2010/
|
Hackaday Links: October 31, 2010
|
Mike Szczys
|
[
"Hackaday links"
] |
[
"coat",
"Halloween props",
"led",
"logo",
"skull",
"star wars",
"twitter"
] |
Happy Halloween to one and all. Let’s celebrate the holiday with some related links.
[Brandon] carved
the Hackaday logo into his Jack-‘o-Lantern
. But that’s not all, inspired by
EMSL’s Jack-‘o-Lantern
, as well as
our own offering
, he added LEDs. Three of them occupy the flesh behind the eyes and nose, fading in and out thanks to some pulse-width modulation that an Arduino provides.
Mad Scientist Blinken Costume
[Bill Porter] is getting down with the LEDs by making
a Mad Scientist costume
. The accent jewelry is an LED matrix necklace that he made himself to go along with 76 of them sewn into the coat. Also joining the party is over one hundred feet of wire and two Arduinos.
Dole Out Candy Via Twitter/Phone
Apparently [Noel Portugal] will be too busy hacking together his next project to dish out candy on Halloween. To make up for his double-booked schedule
he built an automated candy dispenser
. Just tweet your request and the bucket will open a hatch from which candy will fall. There’s also an option to activate it with a voice call, or just slap that red button until your blood sugar reaches an adequate level.
Star Wars Pumpkins
[Charles Gantt]
carved Yoda’s mug into his pumpkin
and backlit it with green LEDs. Someone else paired two together for a
Death Star shoots Alderon
scene [via
Reddit
]. If those aren’t enough for you there’s a Star Wars top 10 collection
out there somewhere
.
Now go start working on next year’s props!
| 8
| 8
|
[
{
"comment_id": "205850",
"author": "Ben Wright",
"timestamp": "2010-10-31T15:37:51",
"content": "Yoda didn’t look like a hack. Thats a stencil out of the Star Wars pumkin carving book. I would of liked to see more halloween insprired hacks this year.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205889",
"author": "Charles Gantt",
"timestamp": "2010-10-31T17:36:09",
"content": "Thanks for featuring Yoda guys.@Ben Technically any pumpkin that has been carved to display an image is a hack because it took something and made it do something completely different than it was designed to do. Not all hacking is about micro controllers, scripts, robots, or nokia lcd screens.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205900",
"author": "Bill",
"timestamp": "2010-10-31T18:26:04",
"content": "Thanks for the post HAD!I also want to scare something I found last night, that would be the perfect accessory for my Mad Scientist costume:http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1288424668",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205904",
"author": "Bill",
"timestamp": "2010-10-31T18:36:29",
"content": "scare == shareApparently I have Halloween on the brain.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206223",
"author": "Spork",
"timestamp": "2010-11-01T16:00:00",
"content": "The death star scene is wonderful.While I don’t mean to crap on anyone’s project… LED’s in a lab coat? TWO arduinos? Really? There’s a think called multiplexing and a cheaper board called the Maple if you just needed extra GPIO pins.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206224",
"author": "Bill",
"timestamp": "2010-11-01T16:10:58",
"content": "@SporkIf you bothered to read my blog, you would find that the coat and the marquee are two separate systems. The coat is run by one Arduino that runs 8 channels of software PWM that I built a few years ago.The whole marquee is run by a second integrated AVR, and is part of a product I am developing recently that differs from other serial matrix drivers that have an AVR chip per 8×8 Matrix. Instead, my design has one AVR that can run 10 8×8 matrices (1280 LEDS) in a row using only 5 IO lines. I do know a thing or two about multiplexing obviously.Before you crap on anything, you should probably take the time to look down at what you are crapping on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206389",
"author": "emilio",
"timestamp": "2010-11-01T22:58:47",
"content": "the Death Star vs. Alderaan is so freakin’ epic…as if millions of seeds suddenly cried out in terror, and were suddenly silenced.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207733",
"author": "Mason Moore",
"timestamp": "2010-11-04T19:38:28",
"content": "**AHEM**AHEM**It’s Alderaan. Not Alderon. Geez…. lern2geek.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.584482
|
||
https://hackaday.com/2010/10/31/halloween-props-voice-changing-daft-punk-costume/
|
Halloween Props: Voice-changing Daft Punk Costume
|
Mike Szczys
|
[
"home hacks"
] |
[
"arduino",
"daft punk",
"dsp",
"Halloween props",
"helmet",
"r-2r"
] |
[Dr. West] shared his Halloween costume with us; a
Daft Punk inspired voice-changing helmet
. He stared with a motorcycle helmet, cutting out a hole in the back for a sub-woofer speaker. Inside there’s an old computer mic and the amp circuitry for a portable stereo system. An Arduino is used to pick up the wearer’s voice from the microphone and perform the digital signal processing. Once the alterations have been made the signal is sent to an R-2R resistor ladder to perform the digital to analog conversion, and onto the amp for broadcast. Hear the result in the video after the break.
The rest of the helmet is window dressing. He found some kind of auto-body repair product called flex-edging to use as metallic hair. Those fins are accented with strings of red and blue LEDs. The faceplate finishes the look using speakers from the stereo system and a tinted visor.
He wan’t going for a replica, but we think his creation would be right at home with
the look of the original
.
[youtube=http://www.youtube.com/watch?v=5jK7iwLZVwY]
| 6
| 6
|
[
{
"comment_id": "205814",
"author": "coolty",
"timestamp": "2010-10-31T13:33:39",
"content": "oh god what.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205818",
"author": "loans",
"timestamp": "2010-10-31T13:52:22",
"content": "i bet that’s weird to wear while you’re talking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205874",
"author": "Jons",
"timestamp": "2010-10-31T16:30:30",
"content": "Those are not my words:“I realize the arduino is a shitty choice for DSP, but it is all I had and is easy to use.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205911",
"author": "zool",
"timestamp": "2010-10-31T18:55:47",
"content": "i think i understood what was said but maybe add the closed captions",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206008",
"author": "Time",
"timestamp": "2010-11-01T01:52:43",
"content": "I love this. Well done and not that cheesey like other DIY electronics type costumes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "358079",
"author": "IJ Dee-Vo",
"timestamp": "2011-03-14T17:29:39",
"content": "3p1c",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.496103
|
||
https://hackaday.com/2010/10/30/building-the-banana-jr-6000/
|
Building The Banana Jr. 6000
|
Mike Szczys
|
[
"Mac Hacks"
] |
[
"apple",
"banana jr. 6000",
"bloom county",
"mini",
"plus"
] |
[John’s] latest build strikes a chord of nostalgia by
realizing the Banana Jr. 6000
. The whimsical hardware is
the product of the Bloom County comic strip
. It first appeared in 1984, the same year as the Macintosh. [John] used a Mac Plus as the case but completely revamped the insides. An 8″ touchscreen takes the place of the original cathode ray tube. There’s also a Mac Mini and a couple of speakers salvaged from other Macs. To get things looking just right he altered the case’s logo, painted it yellow, and even altered the Leopard operating system. Now when you boot up you’ll see a Banana and not a partly consumed
pomaceous fruit
.
[Thanks Captain DaFt]
| 15
| 15
|
[
{
"comment_id": "205444",
"author": "mjrippe",
"timestamp": "2010-10-30T23:29:00",
"content": "As one who fondly remembers both Bloom County and the birth of Macintosh, I give this three thumbs up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205468",
"author": "Ian",
"timestamp": "2010-10-30T23:50:44",
"content": "Does anybody else want to fix the poorly-angled switch in the background?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205469",
"author": "Rob",
"timestamp": "2010-10-30T23:51:52",
"content": "Excellent! Most excellent!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205511",
"author": "TheDeepFriedBoot",
"timestamp": "2010-10-31T00:29:00",
"content": "@IanYes…yes I do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205538",
"author": "jones",
"timestamp": "2010-10-31T01:13:29",
"content": "This looked good- until I saw the insides. Would it really be that hard to make a custom AC cord that doesn’t take up half the space inside?Besides that, exterior looks good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205543",
"author": "lwatcdr",
"timestamp": "2010-10-31T01:38:30",
"content": "I have to admit that I feel a mini ITX running Linux would have been a better solution. Of course making the legs work would have been cool as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205561",
"author": "RadBrad",
"timestamp": "2010-10-31T02:50:06",
"content": "Ack!… “Bill The Cat”!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205564",
"author": "M4CGYV3R",
"timestamp": "2010-10-31T03:03:35",
"content": "Just like my ex girlfriend…Great on the outside, hideous on the inside.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205579",
"author": "mono",
"timestamp": "2010-10-31T03:58:54",
"content": "@ian i would wanna fix it but then i stop and think its prolly the rest of reality thats outta whack.@mjrippe eww… freeeak! lol jk@banana jr. too bad its not a real product cuz youtube has a theme song ready for ya./watch?v=QDlQm5jFL50;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205819",
"author": "HackerK",
"timestamp": "2010-10-31T13:55:13",
"content": "Hey look at the light dimmer on the wall… It is not level. ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205857",
"author": "phil",
"timestamp": "2010-10-31T15:46:11",
"content": "that’s awesome. i’m glad some other people remember bloom county.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205891",
"author": "Zack",
"timestamp": "2010-10-31T17:49:29",
"content": "I want that keyboard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206073",
"author": "Bry",
"timestamp": "2010-11-01T04:44:13",
"content": "A friend of mine built one of these years ago:http://www.hifihamster.com/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206269",
"author": "Uncle Spicey",
"timestamp": "2010-11-01T18:21:38",
"content": "Opus would be proud.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206387",
"author": "emilio",
"timestamp": "2010-11-01T22:51:17",
"content": "the Banana Jr. lives! it’s beautiful, straight from Oliver Wendell Jones’s desk and ready to trash-talk any other computer out there. i always wanted my Mac SE to walk around like that…and whomever suggested that it’d be “better” with a mini-ITX running Linux clearly doesn’t get it.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.663222
|
||
https://hackaday.com/2010/10/30/tv-out-for-ti-calculators-using-the-link-port/
|
TV Out For TI Calculators Using The Link Port
|
Jakob Griffith
|
[
"Peripherals Hacks"
] |
[
"calculator",
"link port",
"ti",
"TI-Presenter",
"tv"
] |
Do people enjoy wasting 300$ on a bulky convoluted system, that only works for special “Teacher Edition” calculators, and is several years out of date; E.G. the TI-Presenter? [Benryves] certainly
does not
. So instead of purchasing a TI-Presenter, he made his own
TV out system
for the TI brand of calculators by using an ATmega168, a few passive components, and some clever code. The only draw backs being: you save 280$, it fits in your pocket, and it works for almost any TI calculator.
Bias aside
, the system does actually have a few caveats compared to the commercial edition, but the pros far outweigh the cons.
| 19
| 19
|
[
{
"comment_id": "205408",
"author": "Michael Bradley",
"timestamp": "2010-10-30T22:13:51",
"content": "Just curious, how is it showing on a VGA monitor? Does that monitor have NTSC in? I realy need to read the whole thing probly",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205412",
"author": "DanAdamKOF",
"timestamp": "2010-10-30T22:19:23",
"content": "Neat hack. I’d like to think that a footpedal or some other remote pushbutton could make the screenshot capturing a bit more tolerable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205418",
"author": "Trollicus",
"timestamp": "2010-10-30T22:32:40",
"content": "Cool, I have a version of brickout for my TI, that makes it a game system!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205420",
"author": "Trollicus",
"timestamp": "2010-10-30T22:34:06",
"content": "OOps, I didn’t read this well, only a capture. I shouldn’t jump to conclusions like that, I got excited.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205432",
"author": "geekwrench",
"timestamp": "2010-10-30T23:01:08",
"content": "why doesnt he just use the free PC calculator from Graphcalc.com? its in full color and has much better resolution, for free!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205460",
"author": "Winnar",
"timestamp": "2010-10-30T23:44:32",
"content": "Couldn’t he have built it to capture and display the screenshot automatically? If it could do like 2x/second it wouldn’t be that much worse than displaying it in realtime like with the TI presenter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205462",
"author": "Ben Ryves",
"timestamp": "2010-10-30T23:45:37",
"content": "Thank you for the feature! The regular TI-84+ series calculators can be used with the TI-Presenter by connecting an adaptor to the USB port, but as I only have a TI-83+ I thought I’d have a go at constructing a low-tech version on the cheap.@Michael: I don’t own a dedicated TV, so either use a VGA box or a video capture card.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205467",
"author": "WickedShell",
"timestamp": "2010-10-30T23:50:42",
"content": "Hm.. So he takes a screenshot on the calculator then sends that tv… The same thing that the TI link and free software from TI allows you to do from the computer anyways???Granted it’s still sorta cool as it is a hardware reduction and doesn’t require all the extra stuff that comes with a full blown computer, but seriously when I bought my TI-83+ it came with the requisite cable, and where to download the free software to do all this…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205539",
"author": "Ben Ryves",
"timestamp": "2010-10-31T01:13:35",
"content": "@Winnar: When the calculator is transmitting the screenshot over the link port it isn’t responding to keypresses, so you’d limit yourself to being able to press two keys per second unfortunately. TI’s official offerings tap into the LCD driver hardware, bypassing the need for OS involvement.For those saying that this could be done more conveniently with a PC, then yes, it certainly could. This was not intended to be a serious project; I saw BrandonW’s video demonstrating TI’s device, and I thought it would be an interesting weekend project to try to replicate something similar allowing for hardware limitations. It also gave me a chance to experiment with NTSC, as I’d only ever dealt with PAL before.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205545",
"author": "iklln6",
"timestamp": "2010-10-31T01:42:20",
"content": "so the system is restricted to calculators with screen resolutions 96×64 and below… glancing through the code, in video.c — there is an initialized variable (video_buffer[768]) which holds screen pixel data ( [96*64]/8 = 768). The RAM on an ATmega168 is 1kB — ti-89’s have a screen resolution of 164×100, which would take a video_buffer[2000] — is this all that’s restricting this system from being used on calculators with larger resolutions, like the TI-89? an ATmega328 has 2kB of RAM, which i don’t think would be sufficient, but a simple port to an ATmega644 which has 4kB of ram, or use an external 23k256 to store that buffer… looks like it’d be exceptionally simple with 8-bit values.so lets get to it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205568",
"author": "M4CGYV3R",
"timestamp": "2010-10-31T03:17:19",
"content": "Note: Please don’t link to XKCD. If I have free time, and I click to that page, I will waste hours reading comics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205716",
"author": "Daid",
"timestamp": "2010-10-31T09:52:30",
"content": "@iklln6: Don’t forget that you also need to output video at that resolution. Generating PAL/NTSC signals with an AVR has it’s limitations.The HackVision post from about a week ago also contains the PAL/NTSC driver. But you can generate VGA signals from an AVR as Jody Taffey pointed out there:http://avga.prometheus4.com/index.php?p=6-0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205798",
"author": "Ben Ryves",
"timestamp": "2010-10-31T12:36:21",
"content": "@iklln6: It’d also be a good idea to use the chip’s SPI hardware to clock out the pixel data rather than the current hard-coded delay loop nonsense (which works but is inelegant, to say the least). ;-)Unfortunately, the ATmega168 is the beefiest microcontroller available from my usual supplier. I’ve used a dsPIC33FJ128GP802 in another project to drive a display at 320×240 (it has 16KB RAM) but that’s from a supplier that has minimum order requirements, higher prices and more expensive shipping.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205821",
"author": "blue carbuncle",
"timestamp": "2010-10-31T14:01:29",
"content": "Nice Work :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205822",
"author": "mike",
"timestamp": "2010-10-31T14:02:02",
"content": "does the framebuffer in the AVR ram really need 8 bytes per pixel?, i think you could cheat and get 8 pixels per byte and save alot of ram, though it complicates drawing some more",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205824",
"author": "Ben Ryves",
"timestamp": "2010-10-31T14:11:05",
"content": "@mike: It’s 1 bit per pixel (8 pixels per byte), so for a 96×64 pixel screen image that’s (96*64)/8=768 bytes, which fits in the 1KB RAM of an ATmega168 nicely.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205906",
"author": "dme88",
"timestamp": "2010-10-31T18:45:25",
"content": "Nice, BUT why not just use Virtual TI? Then the students will be able to see which buttons you push.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206036",
"author": "Cindy Auligny",
"timestamp": "2010-11-01T03:21:59",
"content": "@Ben Ryves: that guy, he’s quite clever, right? But how about the size of program?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206495",
"author": "tapius",
"timestamp": "2010-11-02T05:19:09",
"content": "Haha one of my HS math teachers actually put the TI on the overhead projector… this is a really cool hack",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.035633
|
||
https://hackaday.com/2010/10/30/beginner-concepts-electronics-basics-from-the-giz/
|
Beginner Concepts: Electronics Basics From The Giz
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"beginner concepts",
"electronics",
"gizmodo. university"
] |
Gizmodo University is open for business. This free educational series aims to
educate about the basics of electronic theory
. No prerequisite knowledge needed and they’re starting from the ground level. First lesson? Resistors! From there they’ve posted about voltage dividers, series/parallel circuits, Ohm’s law, and how to calculate a resistor value for an LED.
This is a great way to get the base knowledge that you need to start hacking like an EE. These are concepts that we assume you have already mastered if you’re following along with
our AVR Programming series
. We’re hard at work on part three but that’s still a little ways off. You’ve got time to do a review a GizU and reread
our favorite book on electronic theory
.
| 7
| 7
|
[
{
"comment_id": "205410",
"author": "sweet",
"timestamp": "2010-10-30T22:19:00",
"content": "nice idea for beginers",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205426",
"author": "Ajaxx",
"timestamp": "2010-10-30T22:39:20",
"content": "Thanks for the what’s up Mike. I watched both lessons and will be watching the last 2 as well. This will absolutely help with understanding your AVR series. I also ordered one of the books you recommended and bought a breadboard as well. This is exciting for me. Can’t wait to be sharing my own hacks on HAD. Thanks again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205443",
"author": "Jake",
"timestamp": "2010-10-30T23:27:34",
"content": "I had completed HeathKit AC and DC electronics courses by age 12. Those courses were 3 ring binders that were easily 3 1/2″ thick. It’s funny, I knew a couple other kids who did basically the same thing. You don’t see that much anymore – Many kids will read through a tutorial here and there, but there’s no caring for the fundamentals behind it all. It’s really sad, you then end up with a majority of the kids in college-level Electrical programs having never been exposed to electrical theory before. Even worse, many professors don’t really like failing people, so they save them with a nice big curve, and only fail 1 or 2 out of a class of 50, even though 20% of the class is below failing level.Kids, read this stuff, learn it all, and understand it well if you’re trying to get into electrical engineering. It will be very helpful either way, and if you do join an EE program somewhere, having this knowledge beforehand will set you apart from the average nub!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205823",
"author": "blue carbuncle",
"timestamp": "2010-10-31T14:02:31",
"content": "THIS! Keep ’em coming HaD!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205910",
"author": "Anon",
"timestamp": "2010-10-31T18:55:44",
"content": "Way to go, guys :)Really enjoying seeing some links to beginner stuff lately.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206148",
"author": "strider_mt2k",
"timestamp": "2010-11-01T08:55:33",
"content": "So they’re about building stuff now and not just finding it in bars?Good start.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206604",
"author": "ed3203",
"timestamp": "2010-11-02T11:45:02",
"content": "awesome, i’ll browse through this later today, good work guys! off to scavenge me some more zener diodes and capacitors for my arduino psgroove project :)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.978939
|
||
https://hackaday.com/2010/10/30/ignore-uop-on-the-osx-dvd-player/
|
Ignore UOP On The OSX Dvd Player
|
Mike Szczys
|
[
"home entertainment hacks",
"Mac Hacks"
] |
[
"dvd",
"leopard",
"OsX",
"playback",
"snow leopard",
"tiger",
"uop"
] |
If you’ve been frustrated by the inability to skip past parts of DVDs on OSX the here is one solution. It’s a patch script that uses some binary hacking to
remove the User Operation Prohibition locks from DVD playback software
. Using
UOP flags
is a way to force users to watch trailers or warnings as part of the DVD experience. This script can patch Tiger, Leopard, and Snow Leopard systems. It also has the ability to generate diagnostic information for other installations that will lead to expanded support in the future.
| 13
| 13
|
[
{
"comment_id": "205302",
"author": "thebulbguy",
"timestamp": "2010-10-30T18:16:02",
"content": "Yet another reason I still watch laserdiscs…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205307",
"author": "UltraMagnus",
"timestamp": "2010-10-30T18:19:57",
"content": "or you could just use VLC.I’m just sayin’.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205324",
"author": "SteveO",
"timestamp": "2010-10-30T18:54:14",
"content": "or windows….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205342",
"author": "ned",
"timestamp": "2010-10-30T19:19:42",
"content": "from 0 to Apple Sucks in two posts. got that out of your system? good. now discuss the hack, not the holy wars.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205347",
"author": "Necromant",
"timestamp": "2010-10-30T19:30:37",
"content": "or linux",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205348",
"author": "Anonymous",
"timestamp": "2010-10-30T19:31:40",
"content": "You’ve paid for the bloody DVD, and you still get punished for being honest by having to watch the video about NOT pirating, which I could deal with, but combining it with forced adverts takes the piss.Everytime you set the UOP flag, piratebay seeds another copy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205367",
"author": "grenadier",
"timestamp": "2010-10-30T20:03:28",
"content": "Every time I see a UOP flag on a DVD, I increase my seeding bandwidth to spite the dvd publisher.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205368",
"author": "Trollicus",
"timestamp": "2010-10-30T20:07:54",
"content": "Every time you’re forced to watch something via UOP flags on content you paid for, a Kitten and/or puppy dies.Thank you for saving these innocent creatures.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205375",
"author": "YaBa",
"timestamp": "2010-10-30T20:17:12",
"content": "Like if those stupid warnings mean something or stop something.Huuuuuuuuuuhh… FBI sez it can arrest me if I copy this DVD…. huuuuuuuuuhhh…fear :D :D :D :D :D :D GET REAL DVD producers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205415",
"author": "therian",
"timestamp": "2010-10-30T22:30:14",
"content": "we get it, MACs sucks, can we read about hacks now ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205537",
"author": "ejonesss",
"timestamp": "2010-10-31T01:11:53",
"content": "another thing that would be nice is if it could disable the blocker that blocks screen captures (command shift 3)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205769",
"author": "P",
"timestamp": "2010-10-31T11:40:54",
"content": "or, like other commenter stated, you could use VLC and happily skip around in the video and take screenshots all day",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205954",
"author": "Erik Johnson",
"timestamp": "2010-10-31T22:29:56",
"content": "This is the precise reason I copy DVDs. To remove the UOP and maybe the menus/extras altogether so I can just pop-n-play immediately…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.782691
|
||
https://hackaday.com/2010/10/30/this-is-a-peer-to-peer-filesharing-network/
|
This Is A Peer-to-peer Filesharing Network
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"filesharing",
"flash drive",
"network",
"peer2peer",
"usb"
] |
[Aram Bartholl] is
building his own filesharing network
that screws those fat cats who want to control your freedom. He’s added file cache devices throughout NYC (five so far but more to come) that are anonymous and free to use. Upload what you want, download what you want. They’re completely offline which means monitoring who’s doing what gets a lot harder and quite possibly requires a warrant from a Judge (we’re obviously not legal experts, your mileage may vary).
As for the slew of comments that are sure to point out the dangers of malicious USB device; We think everyone knows they’re taking on some risk when connecting to a USB plug protruding from a brick wall.
[Thanks Neckbeard]
| 116
| 50
|
[
{
"comment_id": "205193",
"author": "Mike Szczys",
"timestamp": "2010-10-30T15:51:03",
"content": "I’m in love with this idea.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205194",
"author": "Nippey",
"timestamp": "2010-10-30T15:53:37",
"content": "Lol.Thinkin of some HV-generator if you miss to type in the right password xD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205196",
"author": "spiritplumber",
"timestamp": "2010-10-30T15:55:02",
"content": "Full of win.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205197",
"author": "Ampeater",
"timestamp": "2010-10-30T15:55:09",
"content": "I was working on a similar concept; off-line data “swap spots” using wifi, but this is much more elegant (in a way). I love it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205198",
"author": "Ampeater",
"timestamp": "2010-10-30T15:56:49",
"content": "I always though geocaching was cool but lacked a real purpose to exist, this is that purpose.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205200",
"author": "Me",
"timestamp": "2010-10-30T15:58:21",
"content": "Interesting idea…I’m sure since it’s open to the public, a warrant to plug in and see what’s on there isn’t going to be required, then staking out the locations doesn’t require anything either.Not sure how large the USB drive is, but that limits the effective number of files you can share if they aren’t just music/pics (think movies, games, software)… and for the larger files, how long are you going to have to stand in a dark alley in NYC to download it… lolOne other thought… does he have permission from the building owners to install these and do a crappy concrete patch job? lolu",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205201",
"author": "Mattori",
"timestamp": "2010-10-30T15:58:43",
"content": "Do you know where these USB drives are in NYC?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205203",
"author": "victor youk",
"timestamp": "2010-10-30T15:59:30",
"content": "I wouldn’t really want to put my laptop against a brick wall. Extension cord required!Another idea – same concept as the USB, but using a 3.5mm audio jack instead. Have special software that decodes audio signal into digital data. Use a M-M 3.5mm cable, connect it to a 3.5mm jack in a brick wall, and share files. Would probably be a lot slower, but safer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205205",
"author": "Reggie",
"timestamp": "2010-10-30T16:00:21",
"content": "USB GLORY HOLE………..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205206",
"author": "Mr Q",
"timestamp": "2010-10-30T16:00:30",
"content": "yea and rip usb port out of motherboard while doing it + it’s a piece of metal sticking from a wall, should have used female port.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205207",
"author": "HARaaM",
"timestamp": "2010-10-30T16:00:52",
"content": "HomeLandInsecurity is going to pee their pants.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205209",
"author": "Neckbeard",
"timestamp": "2010-10-30T16:02:20",
"content": "Glory-hole USB",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205213",
"author": "Anthony turo",
"timestamp": "2010-10-30T16:05:41",
"content": "Glory hole USB style. Amazing idea though. U just need to do this on ur crap laptop incase you run into a virus, or more specifically the USB haksaw (hak5.org for info)–2uro",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205214",
"author": "Brock_Lee",
"timestamp": "2010-10-30T16:07:05",
"content": "In my language, “Aram” is spelled “Hero”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205215",
"author": "Frits Rincker",
"timestamp": "2010-10-30T16:16:21",
"content": "There’s something to do with glory that lurks in the back of my mind..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205217",
"author": "Terreurbv",
"timestamp": "2010-10-30T16:22:42",
"content": "“Get your data fix here”Only problem would be people abusing it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205219",
"author": "capobv",
"timestamp": "2010-10-30T16:24:49",
"content": "better check that the plug is not 110/220V AC before connecting.or how about a relay that is triggered by the usb host power and switches to mains once connected…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205221",
"author": "Itwork4me",
"timestamp": "2010-10-30T16:28:58",
"content": "Gotta be located higher than 5 feet. I don’t want to touch some urine-encrusted USB port.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205222",
"author": "Jeeves moss",
"timestamp": "2010-10-30T16:29:10",
"content": "Nothing to see here, keep moving.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205224",
"author": "ZeUs",
"timestamp": "2010-10-30T16:34:44",
"content": "People will just hammer this off the wall and it’s limited to 1 person at time. It’s not so wel suited for illegal filesharing so it’l probably not get very big.cool idea though. Really like how it looks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205227",
"author": "Gösta",
"timestamp": "2010-10-30T16:37:31",
"content": "Totally awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205228",
"author": "dnny",
"timestamp": "2010-10-30T16:38:38",
"content": "Locations:87 3rd Avenue, Brooklyn, NY (Makerbot)Empire Fulton Ferry Park, Brooklyn, NY (Dumbo)235 Bowery, NY (New Museum)Union Square, NY (Subway Station 14th St)West 21st Street, NY (Eyebeam)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205229",
"author": "Brock_Lee",
"timestamp": "2010-10-30T16:43:52",
"content": "@meI don’t think you have to worry about a steak-out since you don’t know what’s on the drive until you plug it in. How can you charge someone with a copyright violation that they didn’t know they committing?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205230",
"author": "Brock_Lee",
"timestamp": "2010-10-30T16:44:25",
"content": "were",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205231",
"author": "NatureTM",
"timestamp": "2010-10-30T16:44:43",
"content": "Very clever idea! …and so dirty, I love it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205232",
"author": "Ken",
"timestamp": "2010-10-30T16:45:44",
"content": "At a local arcade there is a NFL Blitz machine that has an N64 memory card slot.After the second day the machine was there, One full inch of chewed gum was packed into the slot.If someone takes issue with this, they are either just going to get pliers and twist the usb connector off…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205234",
"author": "Infrared",
"timestamp": "2010-10-30T16:46:35",
"content": "SneakerNet 2.0 has arrived… this is awesome and might be coming to University of Texas Arlington sometime soon",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205237",
"author": "Zybex",
"timestamp": "2010-10-30T17:01:14",
"content": "The risks would be too severe for me to use such an installation, especially once the local pedophiles get wind of the setup. Also, would the person who placed these drives be liable for enabling the distribution of such images?Nice idea but the real world is just too screwed up for it to work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205239",
"author": "capob",
"timestamp": "2010-10-30T17:05:07",
"content": "Better make sure that there isn’t 110/220V on that plug.Or what about a relay triggered by the usb-power, so it switches to mains after you connected. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205243",
"author": "Mic",
"timestamp": "2010-10-30T17:12:07",
"content": "Most curious. I love it! I wonder what kind of things people would put on it. Secret documents or porn?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205248",
"author": "[Dtk]",
"timestamp": "2010-10-30T17:20:24",
"content": "wow this is a pretty cool idea. the only thing i see that may be a problem with it is that either people will vandalize the USB(both the physical stick and also the files in it) or someone will just chisel it out and use it for their own use.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205250",
"author": "Necromant",
"timestamp": "2010-10-30T17:26:30",
"content": "News flash, year 2013: There have been more cases of sniped pirates downloading movies from RIAA honeypot flash drives in the streets. Despite all the dangers, they just continue to download. Since the complete shutdown of the bittorrent these fileflash networks have become extremely popular despite all the dangers.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "1035451",
"author": "dirf",
"timestamp": "2013-08-04T00:33:31",
"content": "I got really confused reading that here in 2013.",
"parent_id": "205250",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "205251",
"author": "Vetter",
"timestamp": "2010-10-30T17:27:24",
"content": "As these are located in public places, no search warrant is needed by law enforcement to take control of them.Additionally, if the ‘protectors of other peoples property rights’ decide to look into this, the building owners are liable for content regardless of them actually knowing of their existence.As it is (sub)human nature to deny to others things they find beneficial any knuckle-dragger can come along and destroy the connection. They need to be recessed into the wall and camouflaged to mask their appearance. Users can bring their own extension cable.While a great idea, it needs another bridge to span the gap and provide an untethered means of contact and that ratchets up the complexity to a much higher level.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205252",
"author": "ferdi",
"timestamp": "2010-10-30T17:33:10",
"content": "mmmmm a nieuw idee for terrorist to swap infoalqada is intresting in this ideeplan a atack and the fbi don,t have no idee",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205256",
"author": "Miguel",
"timestamp": "2010-10-30T17:37:58",
"content": "Great idea. Since this things are placed outdoors, the only bad thing that I notice is the corrosion over time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205272",
"author": "grenadier",
"timestamp": "2010-10-30T17:44:46",
"content": "These will be broken within days, and if not the rusted within weeks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205279",
"author": "marks256",
"timestamp": "2010-10-30T17:48:22",
"content": "What happens when the usb connector is broken off? Or when it rains an corrodes the copper pads?It’s a neat idea, don’t get me wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205282",
"author": "NoSon",
"timestamp": "2010-10-30T17:54:11",
"content": "I’ll be in New York on Dec 11, I’ll definitely have to check those adresses out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205283",
"author": "Doc Oct",
"timestamp": "2010-10-30T17:54:38",
"content": "I think I like the wifi idea better. Pogoplug hidden somewhere with power and a shelled usb stick stuck inside of it. Or something equivalent on a roof top with a low power solar panel, gel cell battery and a decent antenna.Solar panel and battery would probably be more expensive than a router and usb memory though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205290",
"author": "rickH",
"timestamp": "2010-10-30T18:03:26",
"content": "1st thing I thought when seeing this is what about 4chan types who are going to flood it with child porn?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205292",
"author": "Caleb",
"timestamp": "2010-10-30T18:06:52",
"content": "reminds me of chalkmarks on mailboxes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205294",
"author": "loans",
"timestamp": "2010-10-30T18:08:23",
"content": "neat idea and cool implementation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205298",
"author": "Don",
"timestamp": "2010-10-30T18:11:18",
"content": "Hope ya got good virus protection",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205304",
"author": "Gosh",
"timestamp": "2010-10-30T18:17:08",
"content": "Love the concept!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205308",
"author": "Gilliam",
"timestamp": "2010-10-30T18:20:19",
"content": "now if this was a usb-to-ethernet adapter(or wifi variant) connected to a file server on the other side of the wall. it could require you to have a share folder with a specific name(“wallshare” perhaps) with files you want to share to it. the file server on the other end probes the usb ethernet adapter by mac bound ip addy in a router to get to the specified shared folder on your computer. a built in webserver would provide an instruction page telling you what [\\\\computername\\sharename] to view existing shared files.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205322",
"author": "SteveO",
"timestamp": "2010-10-30T18:43:45",
"content": "I like the idea of a solar powered pogoplug / 4 or 5 64 gig flash drives, and wifi. I would limit the range to 10 yards or so to keep the cloak and dagger, and then geocache the heck out of it… It really does bring so many awesome technologies together to screw the man…Stick it all on top of an awning or ledge so it is out of sight but able to broadcast to the street…also would be a great foot traffic boost if you had a business in an urban center / mall and you could get the word out correctly.As for this idea: 1) it should be recessed for weather 2) a mini usb female in a brick wall is harder to spot / harder to break 3) as is, you can just use a USB extension so you aren’t scraping your laptop against a brick wall. 4) While this is the simplest implementation of the idea, a little more thought and effort will make this idea a massive hit.my .02",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205335",
"author": "Hirudinea",
"timestamp": "2010-10-30T19:11:26",
"content": "Just remember, like with prostitutes, always use protection.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205336",
"author": "John O",
"timestamp": "2010-10-30T19:11:48",
"content": "I think its only a matter of time before someone breaks all of them or they are infected with viruses. I have to agree it is a very cool project though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205349",
"author": "Gdogg",
"timestamp": "2010-10-30T19:32:24",
"content": "Retarded. Put a virus on there and auto run and fun over 9/10th of the people who use it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205353",
"author": "james",
"timestamp": "2010-10-30T19:44:39",
"content": "I like the female usb port idea. Another cool place for them would be at coffee shops and such. like each table has built in 8g drives in them for anonymous sharing",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.866899
|
||
https://hackaday.com/2010/10/29/bbb-1-the-santa-pede-challenge/
|
BBB #1: The Santa-pede Challenge
|
Caleb Kraft
|
[
"contests"
] |
[
"contest",
"recycle",
"upcycle"
] |
Welcome to the first
Buy Break Build
at hackaday, sponsored by
Adafruit Industries
and
Make
. This challenge will be focusing on dancing Santas, or what is inside them. We’ve seen them everywhere, and may even have one or two in an attic somewhere. These annoying little guys should have enough bits and pieces inside to build some pretty interesting stuff. This time, we want to see a multi-legged walking device. We don’t care if it has 2 legs, 7 legs, or 32 legs, as long as it “walks” using its legs.
Join us after the break for the rules, the prize breakdown, and to find out who the guest judge will be!
The challenge:
Acquire a
dancing Santa
. We don’t care which one it is, how much you spend, how big it is etc. We know there are tons of models out there ranging from dancing Christmas [Homer Simpson] to giant life sized Santa. It might be a good idea to do some patent searches first to figure out what is inside. Here’s an example of what you can find (
pdf
).
Tear the Santa apart and use the pieces to build a multi legged walking thing. There are
tons of
ways
to pull this off
. Try to use only the pieces that came from the Santa. You may add tape/glue and solder (as well as batteries). We realize that you may absolutely have to add some stuff to get your plan working. Please document exactly what you added as this will be one of the judging points.
Photograph and document the entire process and
submit it to us
by
November 30th
.
Judging:
Your entries will be judged by the Hackaday staff, as well as our guest judge [Phillip Torrone]. For those who are unfamiliar,
[Phillip] was the founder of Hackaday
. Judging will be based on the final result, the presentation, how many external parts were used, and how well it is documented.
There will be three winners chosen, each with their own strong point.
The best result:
This project will walk somewhat efficiently using the least amount of external parts. We’re going for function over form on this one.
The best presentation:
Your walking machine will look fantastic. Your cuts are smooth, your motion is fluid, your photos are delightful… maybe it doesn’t work that well, but it looks great.
The most overkill:
So you decided to put a 6hp Briggs and Stratton engine in there instead of following the rules and you managed to make it actually work. What’s that? You also programmed it to retrieve frosty beverages? Sweet! We’ll give you an award for that.
Prizes:
The prizes for the Santa-pede challenge have been supplied by
Adafruit Industries
and are as follows.
Best Result:
The Mintyboost
. The Mintyboost is a battery charger for your mobile devices. Just plop 2 AA batteries into the nifty altoids tin case and you’re ready to start charging.
Best Presentation:
The Drawdio
. A peculiar instrument that makes noise based on the motion of the writing utensil you’ve attached it to.
Most Overkill:
The Brain Machine
. A set of glasses that flashes pulses of light into your eyes. The claim is that it can put you into a meditative state by synchronizing your brainwaves. We just think they look cool.
We will also be choosing one out of the above three to win a box set of the first year of Make Magazine courtesy of the
makershed.com
. This decision will be based on a whim mostly, but will probably go to the person who does the best in more than one category.
FAQ:
–this will be updated as people as questions. It’s our first, so there will be a few —
How many times can I enter?
You can enter as many times as you want. We don’t mind.
Can I melt the plastic to completely change the shape?
Absolutely. That sounds awesome.
What should I submit to you, a pdf? a website?
We’re pretty open to what you give us. Ultimately, we want to post your writeup on hackaday so a pdf or word document would work. We won’t turn down other formats though. Keep those original pictures though. We don’t want to have to pull them out of a document if we re-publish yours!
| 33
| 28
|
[
{
"comment_id": "204795",
"author": "Tom",
"timestamp": "2010-10-29T19:19:25",
"content": "Bonus points if the final result resembles an evil multi-legged robo-santa",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "204797",
"author": "Caleb Kraft",
"timestamp": "2010-10-29T19:25:20",
"content": "Man, I totally forgot about the sound aspect… someone has to do something cool with that.",
"parent_id": "204795",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "204802",
"author": "Necromant",
"timestamp": "2010-10-29T19:34:03",
"content": "Cool. How much time do we have? This damned santa will take 2 weeks to get shipped from HK (",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "204807",
"author": "Caleb Kraft",
"timestamp": "2010-10-29T19:40:35",
"content": "@Necromant,Nov 30th is the date that your project has to be submitted by.",
"parent_id": "204802",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "204806",
"author": "Necromant",
"timestamp": "2010-10-29T19:38:56",
"content": "And I’m already willing to make an overkill with an fpga=)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204808",
"author": "Necromant",
"timestamp": "2010-10-29T19:43:33",
"content": "@Caleb Kraft,Thanks, I guess I might make it in time after all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204811",
"author": "tReg",
"timestamp": "2010-10-29T19:48:42",
"content": "Thanks you for spending all that time supporting the spirit we all like !What is the due date ? My personnal feeling would be that it should be /after/ christmas so we can buy all those $2 unsolds.Well, maybe hacking is no longer about having fun for $2 in the garage at 2 a.m. but is now about having a great christmas with family… Things are changing :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204813",
"author": "lee",
"timestamp": "2010-10-29T19:56:57",
"content": "I totally read “Santa Pedo” and was like WTF?!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204815",
"author": "Underling",
"timestamp": "2010-10-29T20:11:40",
"content": "Man i wish i had the money to buy a dancing Santa. This looks like fun. What if i build the Santa and then rebuild it into a walking robot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204831",
"author": "Anonymous",
"timestamp": "2010-10-29T20:48:49",
"content": "Step 1. Acquire multiple dancing SantasStep 2. Make them crawlStep 3. Attach in a chain end to endStep 4. Enjoy your Human Santapede",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204844",
"author": "Christian Lerche",
"timestamp": "2010-10-29T21:07:58",
"content": "@anonymous:Damn, reminds me of a strange movie I once saw a trailer from. Yak!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204845",
"author": "Anon",
"timestamp": "2010-10-29T21:12:11",
"content": "Step 5. Profit!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204850",
"author": "nateL",
"timestamp": "2010-10-29T21:34:37",
"content": "Anon, you missed a step. It looks like this:Step 5. …Step 6. Profit!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204853",
"author": "uC",
"timestamp": "2010-10-29T21:39:23",
"content": "I don’t think there is enough time for me to purchase any of these online. They do look like the perfect evil creatures for hacking. I’ll be keeping my eyes open for a local supply.Ending Nov 30 is a good timing for the ho-ho season.BTW – If you’re not adverse to shipping, search for “a09102600ux0005” with a search engine then use “1EA6WJQMA2” as a discount code you’ll be looking at the cheapest I’ve found yet.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "204857",
"author": "Caleb Kraft",
"timestamp": "2010-10-29T21:48:17",
"content": "Also check local big box retailers (walmart, target etc). I’ve even seen them at Flea markets.",
"parent_id": "204853",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "204873",
"author": "Drake",
"timestamp": "2010-10-29T22:15:51",
"content": "I don’t see dancing santas haveing many parts. Some plastic, some plastic gears, a motor, and an annoying singing circuit.Maybe I should find some with the motion detection circuit. Convert the circuit for use as a quadrane encoder. Use the motors and the encoders to build a mill and then use that to make parts for an octo-pod.Only question would be … which category would that win?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204880",
"author": "Spyingwind",
"timestamp": "2010-10-29T22:37:39",
"content": "What’s funny is I work for the company that makes those dancing santas. XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204967",
"author": "GeekDoc",
"timestamp": "2010-10-30T02:44:08",
"content": "@Spyingwind:Maybe you could work a deal with them to sell packs of 3 or 4 to HaD readers at wholesale. You’d probably generate hundreds of sales, maybe thousands. That would have to be good for the company!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204972",
"author": "Spork",
"timestamp": "2010-10-30T02:57:14",
"content": "@nateLFail. It’s:5. ???6. Profit",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205019",
"author": "John Hobson",
"timestamp": "2010-10-30T05:36:11",
"content": "Going to buy my Santa Tomorrow :DSpyingwind, Maybe you could let us know which product your company sells and give us a heads up of whats inside?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205039",
"author": "Ben",
"timestamp": "2010-10-30T06:47:34",
"content": "After a quick google search this is what I foundhttp://members.cox.net/jmccorm/santa.htmlLooks like the electronics can be pretty manageable, I still dont know about the mechanics though. I’m going to WallMart or Big Lots tomorrowThis should be fun!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205152",
"author": "RussWill",
"timestamp": "2010-10-30T14:09:42",
"content": "The rules won’t let him walk on his hands! No fair!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205160",
"author": "M4CGYV3R",
"timestamp": "2010-10-30T14:27:48",
"content": "This one, although $129.00 at WalMart, has great potential to freak out small children when hacked up.http://bit.ly/aLf5ZF",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205186",
"author": "BobSmith",
"timestamp": "2010-10-30T15:39:56",
"content": "Can I just acquire several mall Santas and human-centipede them instead?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205315",
"author": "Blackbelt",
"timestamp": "2010-10-30T18:27:10",
"content": "this is going to be great, i dont think i will make a winner, but i am going to try and build one anyway !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205541",
"author": "Ben",
"timestamp": "2010-10-31T01:27:10",
"content": "I just got mine at wall greens for 15.00, I’ll open it up later and let you guys know what I find, I’m expecting 2 dc motors, a speaker and some LED’s!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205965",
"author": "NatureTM",
"timestamp": "2010-11-01T00:24:51",
"content": "I think it’d be funny to have a category like, “Most Ghetto” or “Cheapest.” It would be something along the lines of what Afrotech tries to capture. Bonus points would be awarded for sourcing parts from junk, or using only components from the theme item.P.S. I’m broke.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206190",
"author": "Power Supply",
"timestamp": "2010-11-01T13:07:39",
"content": "Is the competition open to people outside the US?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "206194",
"author": "Caleb Kraft",
"timestamp": "2010-11-01T13:31:54",
"content": "@Power Supply,Sure! why not. If Adafruit or Make won’t ship to you, I will personally.(I think they will though).",
"parent_id": "206190",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "206475",
"author": "logickills",
"timestamp": "2010-11-02T03:56:35",
"content": "For those of you worried about the mechanical portion of this project look into passive dynamic walking. Here is a wonderful paper on it:http://tinyurl.com/2w289qm.Also, be careful with which dancing santa you chose. As stated in the contest post several different variants exist. I will say that some will be much easier to modify than others. Before purchasing one and ripping it apart try to find it online.Happy Hacking.~logickills",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210568",
"author": "Sterling",
"timestamp": "2010-11-10T22:53:27",
"content": "I have like 4 of these in my attic. So, once I’m done the remaining Santa’s will be headding for my parts bins.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "274938",
"author": "BoKu",
"timestamp": "2010-12-08T17:25:07",
"content": "Has anyone won this yet?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "275022",
"author": "Caleb Kraft",
"timestamp": "2010-12-08T17:46:46",
"content": "@BoKu,Unfortunately, we didn’t get enough response.",
"parent_id": "274938",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,346.734304
|
||
https://hackaday.com/2010/10/29/exercise-along-to-google-street-view/
|
Exercise Along To Google Street View
|
Mike Szczys
|
[
"home hacks"
] |
[
"bicycle",
"bike",
"exercise",
"stationary",
"street view"
] |
As part of a Master’s Thesis [Lette Moloney]
made this exercise bike control Google Street View
. The hardware setup is quite rudimentary, two hall effect sensors mounted next to each other detect a magnet that was hot-glued to the crank. When the magnet passes the sensors an Arduino establishes if it was a forward or backward stroke based on which sensor was tripped first. From there a keystroke is issued to
Google Street View
to move the virtual location accordingly.
One thing we didn’t expect until we saw the video (embedded after the break) is that traversing street view is not a smooth experience. It’s more of a slide show as you exercise. Not a big deal since the hardware setup can be reused with different virtual stimuli. One thing that comes to mind is attaching a camera to the handlebars of your bike and recording your favorite rides during the warm months so that you can replay them during your indoor winter training. Of course that’s going to require some coding to marry the Arduino data to the speed of the video playback but we want to see it done anyway. Wow, image a database that would allow folks to share point-of-view videos of their rides… it’s the only way we’d ever get to see what it’s like to climb your way up
Alpe_d’Huez
.
We saw a slew of these stationary bike hacks a while back. If this wets your appetite, check in on
one with a wearable display
, another that
also uses Street View
, or
pedaling to the top of a miniature mountain
.
[youtube=http://www.youtube.com/watch?v=DrUp6oKOABc]
| 28
| 28
|
[
{
"comment_id": "204763",
"author": "Erik Johnson",
"timestamp": "2010-10-29T18:27:40",
"content": "@Dex Why would you be spending money on a fuckbuddy? I think you need to learn the difference between one of those and a girlfriend.Anyway, wasn’t this posted ages ago?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204764",
"author": "dext0rb",
"timestamp": "2010-10-29T18:29:17",
"content": "lol Dex, what a post.I guess this is cool in some ways, but part of me is screaming, “Just go outside, damnit!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204766",
"author": "Marco",
"timestamp": "2010-10-29T18:31:55",
"content": "Master’s thesis on that? Really ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204789",
"author": "Gustibus",
"timestamp": "2010-10-29T19:03:21",
"content": "I think Tacx has him beat at presenthttp://www.tacxvr.com/en/products/fortius-multiplayerThe Tacx is a little more expensive…..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204791",
"author": "brennan",
"timestamp": "2010-10-29T19:06:20",
"content": "Considering google street view is a series of images, why would you expect it to be anything other than a slideshow? Were you expecting a video to construct itself out of images?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204792",
"author": "daenris",
"timestamp": "2010-10-29T19:07:03",
"content": "Why would you expect that it would be a smooth experience? Anyone who has used street view knows that you can’t smoothly scroll through it, you need to continue to click to advance to each next segment along the route.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204793",
"author": "foo",
"timestamp": "2010-10-29T19:08:54",
"content": "@Marco I was wondering the same, but after all, it’s not engineering or computer science, it’s “a 12-month intensive course that is designed specifically for art and design graduates”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204810",
"author": "realEngineer",
"timestamp": "2010-10-29T19:48:21",
"content": "@MarcoAgreed. This is trivial. Its sad that some people spend money on a degree like this thinking it will land them a real job. This would be a cool project if an 10 year old had done it, but coming from a masters student this is just sad. Good luck finding a job in this economy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204830",
"author": "Wes",
"timestamp": "2010-10-29T20:44:40",
"content": "“Whets” your appetite, not “wets.” Common mistake.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204874",
"author": "Sparky",
"timestamp": "2010-10-29T22:21:13",
"content": "For a master thesis, for any course, this really is sad. You can determine the direction with a single latching hall sensor, if you place the magnets such that both the north and south poles pass over the hall sensor, and the distance between the magnets is much larger then the width of the magnet. Pedaling in one direction would give a small duty-cycle (short high pulse), and the other direction would give a large duty cycle (short low pulse). I’d like to thing any masters student would be able to figure that out.The concept of point-of-view rides could be viable, with a number of improvements. First of all, a larger number of magnets would be a good idea, to get a shorter measurement interval.It would be really cool to incorporate steepness or pedal torque data in the stream, and use an eddy current or other electronically controllable brake on the bike, to mirror the pedaling torque required for a given speed to the actual ride.A panoramic view (from a panoramic helmet camera) would be really cool, because that would enable the use of a VR helmet.You can really make it as simple or complicated as you like. There could even be a commercial market for the ride data…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204875",
"author": "Jake",
"timestamp": "2010-10-29T22:27:35",
"content": "A masters thesis? Seriously? Wow. What a piece of crap. A masters thesis on… Generating forward/back/left/right keystrokes from and exercise machine???Really?Seriously???Wow. I’d be embarassed to be that guy. What a fail. People with REAL masters thesis’ are going to laugh this guy out of the indistry!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204876",
"author": "Jake",
"timestamp": "2010-10-29T22:28:51",
"content": "Also, HAD, you should be embarassed for posting this worthless writeup. FAIL. Go sit in the corner for a MILLION YEARS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204890",
"author": "macw",
"timestamp": "2010-10-29T23:03:16",
"content": "it says “PART OF” a master’s thesis, FYI — lots of theses in design and the applied arts involve a portfolio of projects, and this could be just one of them. No one is going to get a master’s degree just for making this one thing.I like HaD, but frankly the cranky bitter frustrated-engineer mindset that shows up in the comments (not on the site content, imagine that) is just gross. If we left everything up to the designers and artists we’d have gorgeous products that felt great to use but didn’t work mechanically; if we left it all up to the engineers every single product would work fine but it would be a 600 pound stainless steel cube.People here need to learn to accept that they can do some things better than other people, and other people are much better than them at other things, rather than the whole “omg you mean he didn’t wind his own resistors from carbon wire what a fucking n00b HaD sux” bullshit attitude.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204900",
"author": "Trollicus",
"timestamp": "2010-10-30T00:09:08",
"content": "Out(in) for a leisurely ride and Dammit,I looked, the light was green and WHAM one frame later and I get hit by a bus. To make things worse it had an add for Microsoft Windows mobile 7 on the side.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204968",
"author": "Polaczek",
"timestamp": "2010-10-30T02:45:23",
"content": "@MarcoMy thoughts, exactly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204978",
"author": "Dan Fruzzetti",
"timestamp": "2010-10-30T03:29:26",
"content": "It’s awesome — breaks the monotony of stationary exercise equipment nicely, except it looks like his screen is too small and not ergonomic enough to get really… immersed. i think it’s a great project and creative and resourceful.i finally wrote a book:https://www.createspace.com/3456440",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205059",
"author": "Lette Moloney",
"timestamp": "2010-10-30T07:37:12",
"content": "To those of you who appreciate the project, Thank you very much, for those of you who dont, thats up to yourselves, whatever, considering I come from an art background and never touched so much as an LED prior to this year, I feel I did all right out of it, as for a job in the ‘indistry’ at least I can spell the word!Also this was only a tiny PART of the Masters Thesis not the complete assessed work for the year,I guess it is easy being so critical when hiding behind your computer screens,Thank you to those of you who at least tried to be nice about it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205122",
"author": "Whatnot",
"timestamp": "2010-10-30T12:08:49",
"content": "First off I saw this more than a year (maybe two) ago already, so this guy steals stuff for a thesis?And @jake you scream he should be embarrassed then type the word “indistry”…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205138",
"author": "M4CGYV3R",
"timestamp": "2010-10-30T13:17:23",
"content": "This still isn’t going to get me on an exercise bike, though I would happily jump on one if I could play some San Andreas from the seat.At least use a head-mounted display to give you more immersion.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205179",
"author": "fluidic",
"timestamp": "2010-10-30T15:13:00",
"content": "@M4CSimulator sickness would be a huge problem. HMDs require significant further development before you can really just drop them in like that.@LetteThe electrical side of this is really not that complicated no matter how you set it up, and you chose an approach that would seem sensible to someone with much more experience in the topic area. I wouldn’t worry about that too much. The design and human sides of this are much more complex and interesting anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205249",
"author": "Nick",
"timestamp": "2010-10-30T17:21:06",
"content": "This would be really cool if you recorded favorite routes, and then just used faster / slower key inputs into VLC based on the interval between passes. It would be fairly simple to code as well.On a side note, people around you would look quite funny.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205445",
"author": "Jake",
"timestamp": "2010-10-30T23:29:22",
"content": "@WhatnotI’m doing pretty damn good for typing all this crap from a blackberry, dammit!Also, I agree with Whatnot, saw this somewhere else a long time ago!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205644",
"author": "myspacee",
"timestamp": "2010-10-31T07:48:00",
"content": "hello,made same thing one year ago using an usb keyboard controller to allow not electronic people to build one.used to allow my father to distract when do some cyclette exercises (he has some problem walking…)allow also to choose location with super easy interface, with best city around, and an option to randomize location based on db.is usefull for people with some disabilities, and funny for all others…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205797",
"author": "Lette Moloney",
"timestamp": "2010-10-31T12:35:33",
"content": "@ Jake and others, yup This idea was out before, I never said I was the first to come up with the idea, far from it, but this was built for people with disabilites and have no experience with computers and also to prove that something like this can be built at little or no cost, all build and code is original though, I didnt steal anything thanks!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205994",
"author": "Jake",
"timestamp": "2010-11-01T01:12:14",
"content": "Why did you have to “prove” something that was already common sense?Only required input: Left, right, forward, back. Lol.I’m sorry, sounds like it’s better suited for a highschool science project. I’m shocked that anyone would consider this a relevant thesis topic, it must have taken all of what, 2 days to finish? If that??? A thesis is supposed to mean something, be relevent and complex…*sigh*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205995",
"author": "Jake",
"timestamp": "2010-11-01T01:16:41",
"content": "You know, I just realized something. You *aren’t* an electrical person, are you. See, I’m going on the assumption that your “Interactive Media” description implied that you were some sort of electrical engineering technology student or something. If you don’t have an electrical background, then bravo for figuring out the use of hall sensors and whatnot, but still – If I did my masters in EE with a thesis that tried to do someting that had already been done 10 times over, they’d tell me to go to hell and laugh me out of the office. Maybe things are different in your program. I dunno.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209718",
"author": "Lette Moloney",
"timestamp": "2010-11-09T02:49:18",
"content": "Jake, but who said its EE? :) u clearly havent read any of my post or blog to find out anything about the project, its all there if you read it!! Im not an engineer I am a creative with a background in art and absolutely no background at all in electronics of any kind, if you had read the full post you wouldnt have had to ‘realise’ that!There is a massive difference and the Masters was not just based on this build alone because yes, its very basic electronics, but graded rather on the quality of content in research and explanation and in showing documentary evidence of everything involved in this project, not just the build but working with people with disabilities and palliative illness themselves.The project was built for them and was PROVEN for them because the majority if not all the people I worked with during this project in the care centre had never heard of a hall sensor much less an arduino!!Try not to be so critical when there is far more to the picture than what you read in a brief blog post, where my engineering fails it makes up for in the HCI, user studies and Human factors involved, thats the side of interaction design I studied!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "358977",
"author": "Joeg",
"timestamp": "2011-03-15T14:17:26",
"content": "I use the Taxc almost every day in the winter for a Cycling Trainer .. You can import Google Earth kml..with elevation controlling a torque inducing motor to mimic very realistically hills both up and down .. Ride it .. Save it .. Upload to a Tacx supported web site and “race” against ppl from all over the world . And there is a Live REal Time way to ride with other riders . . the cost is around $1200 pricey for most, but for a serious Cycler it’s not much…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,346.933204
|
||
https://hackaday.com/2010/10/29/maze-solving-robo-mouse/
|
Maze-solving Robo Mouse
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"maze",
"mouse",
"RACE",
"speed"
] |
Looking for something to build that will be challenging and interesting to laypersons at the same time? Take some inspiration from this
maze-solving robot mouse
. It take the idea of a line-following robot, and makes it infinitely more cool. The tiny rover uses sensors to map out a physical maze. Once it figure it out, you put it back at the beginning for a speed run to the finish. We’ve embedded the video below showing the whole process. Looks like the speed-run is completed in just under five seconds.
Now that you’ve enjoyed a virtual mouse in a real maze, check out
a real mouse in a virtual maze
.
[youtube=http://www.youtube.com/watch?v=FzBwnsnxFGU]
[Thanks Bemental]
| 18
| 18
|
[
{
"comment_id": "204729",
"author": "Squirrel",
"timestamp": "2010-10-29T17:20:15",
"content": "I’d like to see some more specs on that mousie. Like what type of sensors it uses, how it handles slip etc during its SLAM process (it almost has to be using Simultaneous Localization and Mapping to be able to build a map to solve the maze faster).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204734",
"author": "Zmaster",
"timestamp": "2010-10-29T17:35:11",
"content": "This just made my day!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204741",
"author": "Tom",
"timestamp": "2010-10-29T17:52:38",
"content": "‘Once it figure it out’",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204754",
"author": "Eirinn",
"timestamp": "2010-10-29T18:18:56",
"content": "@Dex They’re climbin in your windows, they’re snatching your people up.Yes this made as much sense as your post.Amazing computational ability in such a little package. Ahh makes me sad i can only build something 7 times as large, uses 4 times more power, wheighs 10 times as much and has 1/10 of the quality *sniff*.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204755",
"author": "Theseus",
"timestamp": "2010-10-29T18:19:01",
"content": "Psshh. Claude Shannon did this like 60 years ago:http://techchannel.att.com/play-video.cfm/2010/3/16/In-Their-Own-Words-Claude-Shannon-Demonstrates-Machine-Learning",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204770",
"author": "LazyMegaMan",
"timestamp": "2010-10-29T18:42:40",
"content": "Guide to making a Japanese robot:1. Take something small and make it smaller.2. Give it an animal shape OR name it after an animal.3. Add the most obnoxiously-cute beep sounds and tones.4. Make a YouTube video of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204821",
"author": "Spencer Haley",
"timestamp": "2010-10-29T20:27:03",
"content": "Tom, you beat me to it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204828",
"author": "AJ Robins",
"timestamp": "2010-10-29T20:40:54",
"content": "There used to be actual contests for IRL robot “mice” to solve actual physical mazes 20-30 years back (the “mice” were sometimes almost R2D2-sized). Whatever happened to those contests?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204849",
"author": "Addidis",
"timestamp": "2010-10-29T21:29:41",
"content": "I want one. . .",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204884",
"author": "Jons",
"timestamp": "2010-10-29T22:46:34",
"content": "We had a similar course in my Uni, Interactive Media Dedesign. Basically the students were taught how to use the ARDUINO and blink LEDs and such.Not to mention that they all looked like the kind of people that would write their novel on their macbook at Starbucks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204885",
"author": "vonskippy",
"timestamp": "2010-10-29T22:54:09",
"content": "Interesting that it has no spatial awareness what-so-ever. A simple “spin out” and it’s completely lost – even though it’s in a area it’s completely mapped out before",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204895",
"author": "CG",
"timestamp": "2010-10-29T23:33:53",
"content": "The maze almost spells HACK.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204898",
"author": "Michael V",
"timestamp": "2010-10-29T23:58:18",
"content": "A traditional maze can be solved by constantly hugging the right-hand wall. If there’s an intersection, follow the right wall (by turning right). You will always reach the exit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204937",
"author": "Tachikoma",
"timestamp": "2010-10-30T01:16:01",
"content": "We used to do micromouse competitions many years ago at university. Very challenging! But it is also fun to do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205137",
"author": "M4CGYV3R",
"timestamp": "2010-10-30T13:15:05",
"content": "Looks like it just uses some variant of the left-hand rule. Not very efficient. Can it be adapted to use other solving algorithms?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206507",
"author": "Matt",
"timestamp": "2010-11-02T05:58:42",
"content": "@AJ Robins: Here you go: .My uni team is competing in this event next April at RoboGames. We’re wrapping up the planning stage and will start building soon. I hope to document the process and maybe submit it here if there’s any interest.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206509",
"author": "Matt",
"timestamp": "2010-11-02T06:00:24",
"content": "Whoops, re-do on that link:http://robogames.net/rules/maze.php",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "387616",
"author": "Bob",
"timestamp": "2011-04-28T22:11:18",
"content": "It is easy to make a maze which can’t be solved by just hugging the left or right wall, so no the method is more complex than that.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.088265
|
||
https://hackaday.com/2010/10/29/crutch-mounted-light/
|
Crutch-mounted Light
|
Mike Szczys
|
[
"digital cameras hacks"
] |
[
"crutches",
"flash",
"light",
"photography"
] |
[Malikaii] is exercising the hacker spirit inside by
building light stands out of junk
. He’s using them as an alternative to purchasing off-camera flash units. He made this one using a lot of salvaged parts; two crutches make up the frame, a discarded reflector for one of those highway-work floodlights will house the flash, and an old pillow case diffuses the light. The version above can easily be moved around by an assistant, or if you’re shooting solo [Malikaii] also found that the base from an oscillating fan was easy to adapt for use with the crutch frame.
If you’re not able to scavenge these parts perhaps
a folding light tripod
is what you need.
| 9
| 9
|
[
{
"comment_id": "204713",
"author": "andres",
"timestamp": "2010-10-29T16:30:13",
"content": "from the picture that’s only one crutch to make the frame. of course it doesn’t free stand without that fan base you mentioned.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204715",
"author": "supershwa",
"timestamp": "2010-10-29T16:31:43",
"content": "Great ingenuity — I only wonder if the light bulb housing gets too hot and melts the rubber pad of the crutch after time? Not sure if Malikai is using the flash that much, but it would be my only concern.Nice job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204719",
"author": "malikaii",
"timestamp": "2010-10-29T16:40:03",
"content": "Author here. I’ll check back in as more comments arise, but to answer these initial ones: the stand you see actually is made from 2 crutches, because the lengths didn’t work out properly if I just used the piece I cut off of one.Secondly, this is to be used with strobes. I was using a Nikon SB-28 which runs no risk of overheating anything.Thanks for the comments, keep them coming.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204724",
"author": "fartface",
"timestamp": "2010-10-29T16:54:32",
"content": "Interesting, although I found that light stands are so cheap second hand it’s not funny. I picked up 20 of them by hitting the Good-wills and second hand shops for nearly nothing because these places have no idea what they are. $1.00 each and now I have more than I need.Scrounge first, fabricate second, buy new at robbery prices last.Camera shops are thieves.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204733",
"author": "pete25r",
"timestamp": "2010-10-29T17:34:13",
"content": "I was a partial collaboratorist with Malikaii, I helped carry some junk and he borrowed my gerber one time.where we were located at the time, there was nowhere to find or aquire anything as far as a lightstand. closest thing to a lightstand was a $70 tripod, forget that, it was a sorry tripod too.He went all out and had a DIY sock on it too. A sock is a piece of fabic, usually white, to soften the light of the flash even further.@fartface, I need to know what Goodwills you are hitting up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204759",
"author": "willywonka",
"timestamp": "2010-10-29T18:23:26",
"content": "I misread the title as crotch-mounted light… anyone want to make one?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204805",
"author": "echodelta",
"timestamp": "2010-10-29T19:37:01",
"content": "Propped up tech. It can’t stand on its own. Reflector can’t be aimed at any angle. Bounce off ceiling is not possible. Wire ties make for floppy fasteners, with ends clipped they can’t be tightened as they wear in. 3 mop or broomstick handles would make better stock, with a wooden tilt head. Aim and go shoot. Strike and fold up.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204829",
"author": "timmah!",
"timestamp": "2010-10-29T20:42:37",
"content": "So in the picture, the flash fires out the back of the reflector in that setup?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205106",
"author": "strider_mt2k",
"timestamp": "2010-10-30T10:11:35",
"content": "Seems pretty functional.If it works, it’s good!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.135897
|
||
https://hackaday.com/2010/10/29/tiny-usb-business-card/
|
Tiny USB Business Card
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"attiny85",
"AVR",
"business card",
"diode",
"V-USB",
"zener"
] |
[Frank Zhao] put together
a USB business card
. It’s even got the instructions printed right on the silk screen of the PCB explaining how it should be used. He based the design around an AVR ATtiny85 microcontroller. It runs the V-USB package that handles USB identification and communication protocols. The rest of the hardware is pretty standard, the uC draws power from the 5V USB rail, with a couple of 3.6V Zener diodes to drop the two data lines down to the proper level.
Once plugged in it waits until it detects three caps lock keypresses in a row, then spews a string of its own keypresses that type out [Frank’s] contact information in a text editor window (video after the break). It’s not as reusable as
the mass storage business card
because [Frank] didn’t breakout the pins on controller. But we still enjoy seeing
business cards that make you stand out
.
This is a great project to tackle with
your newly acquired AVR programming skills
.
[youtube=http://www.youtube.com/watch?v=vX1tDk_iwOo]
[Thanks Harald]
| 43
| 43
|
[
{
"comment_id": "204671",
"author": "biozz",
"timestamp": "2010-10-29T15:17:55",
"content": "i think the usb would be better on top and shorten the card a bit so it does not snag in the wallet and you can pull it out with a convenient tab :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204677",
"author": "Chris",
"timestamp": "2010-10-29T15:32:16",
"content": "if it emulates a keybourd why don’t it open notepad on it’s own?But I love the formfacter thats just awsome, I want a thumb drive in that formfacter.Now if your gonna go with software starting instuctions in the card then make it a com port and turn than microcontroller into a mini BBS, old school interactive.or just plug it in and it opens your website.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204679",
"author": "Bill Porter",
"timestamp": "2010-10-29T15:33:05",
"content": "I’ve seen a few other people with similiar business cards, some with Resume’s as word files or some that type it out like this one. Nothing new here.All of the Dept of Defense forbids USB devices like this, so I hope you don’t expect to give it to us at all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204682",
"author": "Rmg",
"timestamp": "2010-10-29T15:37:43",
"content": "@chris probably to keep mac/linux support",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204684",
"author": "WestfW",
"timestamp": "2010-10-29T15:41:41",
"content": "It’s just swell cause I always plug random auto-running USB devices that admit to being keyboard scanners into my computers, and I hope any prospective employers will too!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204685",
"author": "Ben",
"timestamp": "2010-10-29T15:41:55",
"content": "So… this is practically a USB keylogger. Hmm…Also, I suspect the reason application launchers were left out was to support cross platform users.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204690",
"author": "parag0n",
"timestamp": "2010-10-29T15:51:14",
"content": "Its just a keyboard, It’ll be reading the caps lock LED signal that is sent from the PC to all keyboards when caps lock is toggled, so the only keys it can log are caps, scroll, and num lock!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204691",
"author": "Oren Beck",
"timestamp": "2010-10-29T15:51:50",
"content": "@Bill Porter: Yes, you raised the issue most sadly deprecating of such creativity. Especially in the wake of Stuxnet and similar, we’re not going to lightly consider plugging USB stuff into our machines anymore. Now, a card that had an OLED or E-Ink to scroll our CV/Resume before the eyes of a Headhunter might be a way around the USB Plague fears. That said, The craftsmanship and style of Frank’s card is proof of WHY he should be hired on the spot by a company that can use his talents properly.Frank- I am PROUD to have you showing what folks in Hackerdom can achieve! I’m going to FW this to several headhunters that may find your work-and you interesting",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204696",
"author": "tim",
"timestamp": "2010-10-29T15:54:41",
"content": "where have the 2 zeners disapeared in the final design ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204699",
"author": "Ezra",
"timestamp": "2010-10-29T16:01:50",
"content": "On Mac OSX you need to press the key next to the Ctrl Key, or something like that when ever you plug in a new keyboard, how are you supposed to do that here?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204700",
"author": "victor youk",
"timestamp": "2010-10-29T16:03:23",
"content": "@tim, I’m wondering that too… on the eagle there clearly are the zeners on the top layer, but are gone from the final PCBs. Maybe they are on the bottom side, hidden under the green rectangle thing?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204701",
"author": "coyoteboy",
"timestamp": "2010-10-29T16:06:08",
"content": "Still think that the old card CD’s were the best possible option for this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204702",
"author": "Volfram",
"timestamp": "2010-10-29T16:07:05",
"content": "Clever idea, but it seems to me if he actually wants a job, he ought to put contact information on the outside of the card, as well. Otherwise, it’s like one of those jerk puzzles I used to give people I didn’t trust to puzzle my phone number from.Every time I did that, I was met with a “Well if you’re not actually going to tell me, then screw you.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204705",
"author": "Winston",
"timestamp": "2010-10-29T16:15:06",
"content": "Tbh, it prints out little more information than is on the card itself. Which is a shame!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204706",
"author": "levsha128",
"timestamp": "2010-10-29T16:17:07",
"content": "Linux support?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204708",
"author": "Drake",
"timestamp": "2010-10-29T16:20:33",
"content": "Now open a terminal window and hit shift 3 times for windows or control three times for linux. Supply password when requested (run a fdisk command)Although don’t think that would get you hired anywhere…Another cool idea.Have it emulate a keyboard and a mass storage device. Have the keyboard send commands to open a firefox or some other browser to a file on the mass storage device portion.Hell for that matter make it emulate a mouse and make it open paint and “Draw” a business car for them as well as print off 100 copies.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204721",
"author": "Frank",
"timestamp": "2010-10-29T16:44:02",
"content": "hi guysThe first batch do not have the Zener diodes, it turns out that such a design will work on SOME computers but not ALL computers. I have only handed out three where I’ve attached Zener diodes as an afterthought.The next batch will include the Zener diodes. The files I posted do include the Zener diodes.All it does is a keyboard right now, not a keylogger. The most malicious thing I can pull-off is probably ALT-F4 (then followed by N for those “Are you sure” dialogs), or maybe the shutdown key. I heard somebody suggest “rm -f” too.My contact information changes way too fast (UW’s coop program makes me move every 4 months), so all I want to put is a permanant email address on it. I can put a lot more text in memory but chose not to since I found it rather annoying to wait for it to type everything out.Of course something with a more powerful chip with native USB would be able do a lot more. Although I think most computers will not auto execute anything. I have not tried multimedia key codes yet. Experimenting with those might let me make cool improvements.Including the USB connector, this card is as big as a standard business card. I made sure it fit in a Rolodex.Thanks for all the ideas and comments.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204726",
"author": "Chris",
"timestamp": "2010-10-29T17:01:04",
"content": "It looked like the solder on the USB pads was dangerously thick to me. It kind of looked like he was about to break off the tab in the port.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204748",
"author": "WestfW",
"timestamp": "2010-10-29T18:03:12",
"content": ">> It’ll be reading the caps lock LED signal that is sent from the PC to all keyboardsAh. That’s clever, though it’s still not something I’d want to plug into my computer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204758",
"author": "victor youk",
"timestamp": "2010-10-29T18:21:22",
"content": "But it’s just a keyboard. If someone handed you a keyboard off the street, you would trust its just a keyboard",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204771",
"author": "YaBa",
"timestamp": "2010-10-29T18:43:40",
"content": "you’re being over paranoid.it’s a damn keyb emulator.anyway, when u don’t trust something, just run it on a test machine or Virtual Machine, duh.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204804",
"author": "Frank",
"timestamp": "2010-10-29T19:35:33",
"content": "The PCB is VERY strong, it’s not ever going to snap.The next batch will use 2.4 mm thick PCB instead of the standard 1.6 mm, which will make it even stronger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204820",
"author": "zool",
"timestamp": "2010-10-29T20:24:11",
"content": "hope that they put it in a company computer then have it go through the network and automatically put you on their payroll",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204848",
"author": "Maave",
"timestamp": "2010-10-29T21:23:51",
"content": "Somebody did this but in a much more blackhat manner. The device I saw inputted keys to download/run (I don’t remember which) a backdoor on the computer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204854",
"author": "vonskippy",
"timestamp": "2010-10-29T21:41:49",
"content": "Magic. Really?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204856",
"author": "Audin",
"timestamp": "2010-10-29T21:46:27",
"content": "Two things which would be entertaining:1. VT100 animations.2. data: url to deliver a graphical web page.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204871",
"author": "Erik Johnson",
"timestamp": "2010-10-29T22:11:32",
"content": "I’ve been kinda wanting to do one of these for a while, but I never liked the idea of the SMTs being on top of the board. I should think it’s rather simple to mill out holes for the components to be embedded in the PCB for reduced protrusion.A few ideas:http://erikslaboratory.net/drawings/SurfaceThrough.png",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204891",
"author": "Chris",
"timestamp": "2010-10-29T23:11:12",
"content": "@Frank: Sorry, I should have worded that better. I meant it looked like you were going to break the USB port, not the PCB. The 2.4mm PCBs should do a much nicer job. Keep up the good work! =]",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204988",
"author": "Whatnot",
"timestamp": "2010-10-30T04:02:39",
"content": "Small flaw: ipads don’t have an USB port.The good news: the flaw lies with the ipad :)I’m no fan of it but I hear in defiance of my logic businesspeople actually use ipads, and of course smartphones, so I fear you might need to update to putting a BT dongle on there (sigh), or at least print a QR code on the back?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205031",
"author": "ColinB",
"timestamp": "2010-10-30T06:26:47",
"content": "Really clever idea! I don’t think it’s very practical, but props for an original idea.Wouldn’t it be simpler and more flexible to make the card act as a mass storage device instead of a keyboard? Then the user would not have to open Notepad (the files on the card would appear automatically when plugged in with most OS setups), and you could include text, graphics, animations, etc. in the form of plain text, HTML which would open in a web browser and could include graphics and JavaScript interactivity. I guess the idea is to share your inventiveness in a surprising way, but I can’t see the benefit for anyone else to make these… you’re the inventor so it’s great.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205036",
"author": "ColinB",
"timestamp": "2010-10-30T06:32:32",
"content": "Also, and no fault to your card, but there are so many annoying PCs that make the USB ports inaccessible except to tiny, narrow devices these days. The USB receptacles on the front of a desktop computer are usually surrounded by tons of crud that obstructs entry for many USB devices. I don’t think I could plug this into my computer at work since it’s a Dell with the flip-up panel on the front and upside-down, angled, highly restricted USB ports inside. I can’t even plug in many commercial USB devices. Perhaps it could be plugged into the back of the motherboard, but maybe not since there are many other cables plugged in very nearby (Ethernet, keyboard, video, mouse, etc.).Blame the PC makers for making it so difficult. They should just put the USB ports on the front flush with the surface. Why conceal them deeply, mounted upside down and angled at 45 degrees toward the floor?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205070",
"author": "zeropointmodule",
"timestamp": "2010-10-30T08:49:39",
"content": "@eric johnsonyes, this would work but make the card vulnerable to flexing (the components could break their solder tabs)solution:- RTV filled with silver and/or carbon particles, as it shrinks the conductivity goes up.this stuff is extremely flexible and can withstand bending etc.obtainable as “Durite tyre repair compound” for something like £1.29 at most garages.Watch the fumes though…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205083",
"author": "zeropointmodule",
"timestamp": "2010-10-30T08:55:22",
"content": "this is also a neat way to make connections to flexible substrates, such as plastic coated ITO.might work as a very low resolution positioner by measuring the resistance change as it bends?haven’t tried mixing with BaTiO3 (dielectric powder) yet but it could work well, it does with EL phopshor..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205153",
"author": "the old rang",
"timestamp": "2010-10-30T14:17:25",
"content": "This is a cute looking idea. Very inventive and close to original…But…Anyone using such a device received from anyone else, included ‘trusted associates’…Is an idiot.They are the kind that accept thumb drives off street hawkers and wonder how that virus got in…let alone the keyboard monitor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205202",
"author": "Sitwon",
"timestamp": "2010-10-30T15:59:06",
"content": "Based on testing performed with the Teensy as part of the Hak5 Rubber Ducky project, The “detect capslock” technique does not work on all platforms.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205403",
"author": "Paul",
"timestamp": "2010-10-30T21:59:02",
"content": "I’m afraid the “detect capslock” technique also won’t work on my pc…After years of little annoyances:(Typing whole sentences without actually looking at the monitor, and afterwards noticing some kind of idiot pressed the caps lock somewhere halfway the sentence)Just 2 weeks ago when I had my hot melt glue gun in my hands I permanently fixed that annoying key.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205535",
"author": "Office Space",
"timestamp": "2010-10-31T01:03:16",
"content": "It’s like Superman III.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205870",
"author": "D",
"timestamp": "2010-10-31T16:17:33",
"content": "This is great but the card is still to thick and inflexible.Now.If this where made out of flexible and fold-able plastic of some kind that could adapt to fit many different usb port then you would have a product.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "209069",
"author": "ElectroNick",
"timestamp": "2010-11-07T19:34:53",
"content": "I am sure it will require extra memory but another way to automate things upon insertion would be to emulate an ISO 9660 (CDFS) CD file system so it would appear as a CD drive and most (Windows, anyways) PCs are enabled to have auto-started whatever is in AUTORUN.INF file. Most current 1.5″ LCD picture frames (keychain form factor) load their software this way. Looks like they make do with everything (including the install of the software they carry) in under 2MB.Oh, and speaking about keychains again: I think it might be useful to shorten the card as others suggested to limit a chance to damage USB port (which will probably break before the PCB does) and make it 2″x1″ size – the standard size of a grocery store discount card. If there is also a conveniently located 5mm hole in it, some people may be tempted to actually put it on their keychain … In any case, a hastily drawn sketch here suggests that there is still enough room to make the signature 45 degree USB connector off of one of the corners. I am not 100% sure about the length of the USB part needed for proper connection but I have a Sony “MicroVault Tiny” 2GB USB drive (also made as a flat piece of a PCB) and it makes do with only 8mm length of the connector part, which looks shorter than Frank’s card’s USB connector.In any case, good job, Frank!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "385346",
"author": "zeropointmodule",
"timestamp": "2011-04-24T10:09:16",
"content": "what about using conductive thread to connect the spinning PCB section to the mainboard?This stuff is good for tens of thousands of cycles, and could easily be hidden within the hinge without too much trouble then connected using 70C BiInSn alloy or conducting adhesive.I also tried mixing the silver paint in the EL kits with conventional Araldite Instant Clear, and amazingly it does somewhat work although the resistance is over 50K/cm.Perhaps this could be used to make Z-axis connections to LCDs and suchlike, just mask off the edges and PCB with Sellotape and apply carefully then peel off any excess with the tape when dry and panel properly supported.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "388745",
"author": "michael",
"timestamp": "2011-05-01T12:01:20",
"content": "Now would you look at that;http://www.sparkfun.com/products/9147It’s virtually made for you already, just begging to be flashed",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "1107701",
"author": "John Dow",
"timestamp": "2013-11-22T01:38:08",
"content": "Can I buy it?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2986537",
"author": "Dubei",
"timestamp": "2016-04-11T18:32:59",
"content": "Give them a regular card with a URL on it. If they say that they don t have internet or their internet s down, give them one of these.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.217234
|
||
https://hackaday.com/2010/10/28/buy-break-build-a-hackaday-contest-series/
|
Buy Break Build: A Hackaday Contest Series
|
Caleb Kraft
|
[
"contests",
"News"
] |
[
"break",
"contest",
"prize"
] |
We are proud to introduce a new contest here at Hackaday. Buy Break Build will be regular event where we challenge you to make something from something else. We want to work out your hacker brains to come up with inventive ways to use limited parts. We may have a specific product or genre in mind, and a specific out come we would like to get, then we let you guys loose to make it happen. The contests will usually be judged for winners in 3 categories; best presentation, best use of
only
the existing parts, and most massive overkill. You don’t have to be an electronics engineer, or even know how to program a microcontroller. You simply document your entire hack with pictures and notes, then submit it to
BBB@hackaday.com
and we’ll choose the winners. Those winners will be awarded fabulous prizes and Internet fame as we’ll publish your writeup for everyone to enjoy.
Here’s an example to make things a little more clear.
Don’t actually go do this one
, it is just an example.
Contest: Radio controlled faces. Everyone has an old R/C car lying around right? Can you use those parts to make an animatronic face? It doesn’t have to be humanoid, but at least recognizable as a face. There would be 3 winners, the one that made the best use of
only
the included parts, the one that had the best presentation, and the one that went absolutely the furthest overboard.
Remember, this one is just an example, so please don’t run out and get started just yet. We’ll be announcing our first Buy Break Build very soon.
| 31
| 30
|
[
{
"comment_id": "204313",
"author": "Ivan",
"timestamp": "2010-10-28T20:16:36",
"content": "Cool… 1st!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204314",
"author": "mowcius",
"timestamp": "2010-10-28T20:17:06",
"content": "Sounds like fun. Sign me up! :)Perhaps post more than one project so there is a wider range of stuff that we might have lying around.Mowcius",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204316",
"author": "Matthew Sparks",
"timestamp": "2010-10-28T20:26:15",
"content": "sounds like a blast!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204317",
"author": "Necromant",
"timestamp": "2010-10-28T20:27:30",
"content": "\\classic_soviet_accent{Where do I sign up, comrades?}",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204319",
"author": "Rick Autry",
"timestamp": "2010-10-28T20:30:40",
"content": "Yee-Haw! Now I’m gonna bust a few million neurons deciding which one(s)! to enter…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204329",
"author": "mjrippe",
"timestamp": "2010-10-28T20:48:56",
"content": "Great idea HAD team – can’t wait for round one!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204337",
"author": "Emeryth",
"timestamp": "2010-10-28T21:08:53",
"content": "Great idea, I can’t wait!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204346",
"author": "jeff-o",
"timestamp": "2010-10-28T21:29:15",
"content": "Cool, I’m looking forward to the first challenge. Hopefully I’ll have time to enter something…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204350",
"author": "Douglas.",
"timestamp": "2010-10-28T21:56:46",
"content": "I’ll take the hackaday challenge!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204354",
"author": "NatureTM",
"timestamp": "2010-10-28T22:18:46",
"content": "I hope the prizes are good, not that I plan on winning any of them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204356",
"author": "Brak 0bama",
"timestamp": "2010-10-28T22:31:50",
"content": "can the face look like a car?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204357",
"author": "Alan",
"timestamp": "2010-10-28T22:32:31",
"content": "So say with the example it wouldn’t have to be functional this is more of an artistic endeavor than a technical one?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "204361",
"author": "Caleb Kraft",
"timestamp": "2010-10-28T22:42:08",
"content": "@Alan,Well, you probably wouldn’t win anything if you didn’t at least figure out how to put some kind of functinality in there. For example you could use the steering mechanism to make eyes look back and forth. The drive motor could be attached to a cam that opened and closed a jaw.",
"parent_id": "204357",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "204369",
"author": "swantron",
"timestamp": "2010-10-28T23:00:15",
"content": "Wife: What are you doing with [some item]? Me: Oh, its for a contest…I’m turning [some item] into [a cooler item]! Wife: What do you win? Me: Nothing! Wife: I don’t get it. Me: Don’t these LEDs looks sweet?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204375",
"author": "John Hobson",
"timestamp": "2010-10-28T23:09:46",
"content": "Cant wait for the first one :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204384",
"author": "Daniel N.",
"timestamp": "2010-10-28T23:56:24",
"content": "Its like the opposite of Destroy Build Destroy",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204392",
"author": "Torwag",
"timestamp": "2010-10-29T01:03:18",
"content": "I guess the phrase “best use of only the existing parts” need to be more specific.How about Duct tape, some glue, screws, nuts…. some wires, a bit solder…. well all those supporties, which are necessary to transform something in something else.There should be a more specific definitionsome are easy:wires okarduinno not oksome are tricky:duct tape and wood frame ok3D milled alumina frame not ok3D printed parts ??However, I guess it is a bit blurry and it would be difficulte to set-up a correct list.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204408",
"author": "Derek",
"timestamp": "2010-10-29T01:49:44",
"content": "When does it start?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204435",
"author": "Haku",
"timestamp": "2010-10-29T02:32:25",
"content": "Great idea, but a couple of questions:The prize is simply HaD fame with the writeup being on the site?What sort of submission do you want? PDF? text with web-link or attached images?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204442",
"author": "Tim",
"timestamp": "2010-10-29T02:54:15",
"content": "every time I top up a my cellphone time I get a free nokia 1661, it’s packed with goodies I wonder what would be a good use for it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204454",
"author": "blue carbuncle",
"timestamp": "2010-10-29T03:58:32",
"content": "1st project: blinking LEDs without Arduino. Go.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204458",
"author": "BoKu",
"timestamp": "2010-10-29T04:11:10",
"content": "I cant wait to Take On The Machine!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204466",
"author": "Bill",
"timestamp": "2010-10-29T04:42:47",
"content": "I guess this is a a response to Sparkfun’s “Buy, Build, Destroy”. What a stupid contest that was.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204468",
"author": "Necromant",
"timestamp": "2010-10-29T05:02:53",
"content": "By the way, can you guys announce that towards the weeked, say on friday? I’m in my lab only on weekends =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204471",
"author": "Necromant",
"timestamp": "2010-10-29T05:08:29",
"content": "@BoKu HaD: We want our Take on the Machine, with black-jack and hookers =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204472",
"author": "quezz38",
"timestamp": "2010-10-29T05:10:51",
"content": "awesome, i’m definitely in.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204485",
"author": "TJLusco",
"timestamp": "2010-10-29T05:57:21",
"content": "Sounds RAD! Can’t wait!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204491",
"author": "zool",
"timestamp": "2010-10-29T06:26:42",
"content": "question: how is this different from any other hack?Is it going to be anything we wantor(which is what i think you should do is)name some items that we can use, then whoever comes up with the best hack of those should win. or maybe have a similar theme but use anything we want.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204563",
"author": "mykeyfinn",
"timestamp": "2010-10-29T10:37:32",
"content": "You need a fourth prize category, most spectacular failure :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205180",
"author": "PocketBrain",
"timestamp": "2010-10-30T15:22:24",
"content": "Buy it, use it, break it, fix it,Trash it, change it, mail – upgrade it,(etc)Our theme song, ain’t it?btw, I like the idea of an animatronic Demon Santa, but it’s too late for this year’s halloween. I guess he could be used for Christmas to scare off the carolers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205211",
"author": "Ben",
"timestamp": "2010-10-30T16:04:06",
"content": "Just got one for 15.00 at Wallgreens, later today I’ll take it apart so people have an idea of whats inside",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.301376
|
||
https://hackaday.com/2010/10/28/servicing-an-epson-projector/
|
Servicing An Epson Projector
|
Mike Szczys
|
[
"Repair Hacks"
] |
[
"5500c",
"epson",
"powerlite",
"projector"
] |
[Socket7] got his hands on a projector that had some color calibration problems. Of course the servicing manual says that there are no technician serviceable parts inside, but
he cracked it open and fixed it
anyway. This is an Epson PowerLite 5500c which was showing blue and yellow bands around the outside of the projected image. He could hear something rattling around inside which happened to be the lenses. It turns out there are foam pads that hold them in place that had shriveled over time. After a bit of careful work he replaced them and now has a working projector.
We’d love to have a projector of our own; there’s a lot of
cool stuff
you can do with them. Fixing a broken one is a great way to get one cheap, [Socket7’s] was free!
| 32
| 27
|
[
{
"comment_id": "204289",
"author": "Jules",
"timestamp": "2010-10-28T19:14:00",
"content": "I LOVE the what not to do with the adjustment screws! Great write up.Jules",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204290",
"author": "Dex",
"timestamp": "2010-10-28T19:14:58",
"content": "“These fans go for 30-40 dollars refurbished.” I think the whole projector wouldnt worth more.The future is LED based projectors. More reliability, low power consumption, no heat. They are already in the 500$ price category and getting cheaper which means all the old projector which is second hand probably gonna go down for 50-100$s.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204295",
"author": "Don",
"timestamp": "2010-10-28T19:31:16",
"content": "Thank you for the info. I already have fixed an Infocus projector that needed power supply connecterresoldered ..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204309",
"author": "Socket7",
"timestamp": "2010-10-28T20:11:17",
"content": "Dex,The whole projector (used obviously) still goes for 200-300 bucks on e-bay. Broken ones go for $50, with $30 shipping.If I were buying a projector, I’d buy something new rather then spend 300 bucks on an old projector that uses old technology. I did not buy it though, it was given to me.I’m all about making the things you have work for as long as possible. This projector would have been thrown into a landfill to leech toxic chemicals from the capacitors into the groundwater or whatever. Instead, I have a 80″ media center with 1024×768 resolution, and it cost me 40 bucks and a few hours time.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "2784073",
"author": "Patrick Carey",
"timestamp": "2015-11-04T15:41:34",
"content": "Congradulation for your tincign i dod the same i get my projectors on EBAY and i fix them my self it s my hobbyi use eny tign to do so per example fo polariser i use the lens of tree d glasses thay have the perfect color tempand cost as low as 75¢ a pear. I separate the polariser from the Mica and glue the polariser to peses of glassalways repectign the ligth polarety",
"parent_id": "204309",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "204310",
"author": "Oren Beck",
"timestamp": "2010-10-28T20:13:59",
"content": "The main obstacles to servicing all video projection gear are often found in restricted access to information, parts, and more recently- service software. I have seen projo stuff evolve from highly overdriven,liquid cooled CRT, to LCD transmissive, and from Mirror devices to LED. ALL of them were initially held to be “no longer possible” to be serviced by non-factory techs.Yes, there’s a hell of a learning curve for some of these sets. And the fatality risk decrease from a LED projo compared to the first NovaBeam CRT rigs is a Very Good Thing. But, the mundane details like understanding “front surface” mirrors, Directional coatings on heat glasses etc. can still make for much fun if you don’t have service info. One of my favorite lucrative to fix failures was the convergence IC’s in Mitsubishi CRT projo sets. The “hack” comes in a time saving, but admittedly barbaric butcher’s trick. Dremel tool with carbide wheel cuts the leads of the failed module AT the module’s plastic body. The leads of the new module are formed into a coilspring sleeve to slip over the stub leads sticking out of the board. Remove dead module, clean off Heat transfer crud-apply new goop- carefully slide those coiled leads over the stubs, screw module down- solder leads- tweak up convergence- PROFIT. Yeah, you “could” pull the board, unscrew it from the frame etc and try desoldering the module leads etc. but the hack saved IIRC an hour or more at minimum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204322",
"author": "Grovenstien",
"timestamp": "2010-10-28T20:33:03",
"content": "What ever you do, do not remove the LCD panels from the prisms as they are a bitch to realign when inside the projector! I have found this from experience.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3595899",
"author": "Itwrx",
"timestamp": "2017-05-18T18:02:54",
"content": "How do you go about fixing this if you do.? Sadly I did. It’s in a epson 3020 please help! Someone said you can access a hidden setting to realign them digitally within the project.",
"parent_id": "204322",
"depth": 2,
"replies": [
{
"comment_id": "3597860",
"author": "Itwrx",
"timestamp": "2017-05-19T01:55:28",
"content": "Is it the prisms that nest be adjusted?",
"parent_id": "3595899",
"depth": 3,
"replies": [
{
"comment_id": "4444137",
"author": "Justin",
"timestamp": "2018-03-26T06:41:24",
"content": "i did the same thing on my 8350. i can now see 3 different color images.",
"parent_id": "3597860",
"depth": 4,
"replies": []
}
]
}
]
}
]
},
{
"comment_id": "204323",
"author": "dcroy",
"timestamp": "2010-10-28T20:37:41",
"content": "im working on a pile of projectors to get them running, one i just fixed had a similar issue where a polarizer/mirror shifted causing bandingafter dialing in the other polarizers and cleaning i pushed the one bad one back where the banding went away with a q-tip and siliconed it in placeim about to try to perform a polarizer transplant to fix a burned out polarizer, which is fitting a round peg into a square hole… not sure how that will work outi will also be replacing the xenon arc lamps with high power led arrays, i just have to trick the projectors into thinking there is a bulb present and functional",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204342",
"author": "xeracy",
"timestamp": "2010-10-28T21:21:49",
"content": "Wish I had gotten this advice prior to unaligning the prisms on two different projectors that my friend and I cleaned.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204347",
"author": "Anonymous",
"timestamp": "2010-10-28T21:37:05",
"content": "I fixed a DLP projector a few weeks ago. I got it free from the trash at work; they were throwing it out because half the picture was dark. Took it apart and come to find out the light tunnel (4 mirrors glued together to make a tube between the color wheel and lens assembly) had one side fall out. $0.05 worth of high-temp epoxy later it’s back in action!The best part was they replaced the bulb and reflector assembly in an attempt to fix the problem, and threw it away with the brand new bulb installed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204387",
"author": "matt",
"timestamp": "2010-10-29T00:16:59",
"content": "Good stuff! We definitely need more projector repair guides online. Does anyone know of any good sites about fixing DLP projectors? How to determine if a bulb is faulty or bulb driver?I’ve got a DLP projector that occasionally, randomly displays a green screen, power cycle takes care of it until the next time. A friend of mine’s 720p quit working. The bulb seems to try lighting (power supply buzzes quietly and clicks, bulb lights very dimly) and after a few tries it quits. Another buddy’s projector randomly shuts down. I figure it’s time to learn how to diagnose these things properly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204398",
"author": "Bob",
"timestamp": "2010-10-29T01:19:24",
"content": "The fan can be replaced with almost any other 12V DC fan that fits in its place. There is no point in buying the original part for $30.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204406",
"author": "Shadyman",
"timestamp": "2010-10-29T01:41:30",
"content": "I love things that say “No user serviceable parts inside”. They’re usually the ones that are the most fixable :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204432",
"author": "Digital",
"timestamp": "2010-10-29T02:21:41",
"content": "@shadymanthere is always something user serviceable inside. most of the time I’ve found it to be fuse that needs replacing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204456",
"author": "Socket7",
"timestamp": "2010-10-29T04:07:03",
"content": "@BobI could find no other comparable fan with the same electrical characteristics. A fan that draws more amperage will probably move enough air, but might overload the control board. A fan that draws less amperage probably won’t hurt the electronics, but might not generate sufficient airflow and cause overheating. In addition, the projector monitors the RPM of the fan and will not operate if it’s RPM is outside of a specific, undocumented threshold.Yes, I could have used “any old fan that fits” and I admit I would have a good shot at it working, but I decided to spend a bit extra and get one I knew would work perfectly, that had leads of the correct length, and the correct connector on the leads. I make my life easy where I can.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204505",
"author": "strider_mt2k",
"timestamp": "2010-10-29T08:19:18",
"content": "Socket 7 you have ZERO to apologize for.Well done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204508",
"author": "Andrew",
"timestamp": "2010-10-29T08:26:45",
"content": "@Socket7Actually Digikey has that exact fan, new, for 11 bucks.http://parts.digikey.com/1/parts/438187-fan-dc-axial-24v-60×15-4600-rpm-2406kl-05w-b50-l00.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204514",
"author": "Xb0xGuru",
"timestamp": "2010-10-29T09:08:58",
"content": "@ShadyMan – you’re probably like me and many others here who see “No User Serviceable Parts Inside” more of a challenge than a warning :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204518",
"author": "echodelta",
"timestamp": "2010-10-29T09:22:55",
"content": "No user serviceable parts inside, but the solder connections and connectors sure are!Foam. Substance that turns back into what it was made of, goo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204598",
"author": "fartface",
"timestamp": "2010-10-29T12:07:00",
"content": "All that ime and effort and he now has a low lumen low res projector…I threw 20 of those things away that worked perfectly, low res junk projectors like that are worthless for anything.. and the silly prices people ask on ebay are NOT a measure of value.. I was getting offers of $50.00 each.. It is not worth my time to sell them at that price, so I wrote them off at $1000 each and got a receipt from the recyclers. Ka Ching $20,000 in equipment write off for the company…Note: do NOT use the cleaning cloths he suggested. go buy “pec-pads” and use those real lens and sensor cleaning cloths and the solution for the same (solution is a lie, it’s 99.9% pure DiWater that when dries leaves no residue..) you get cleaner surfaces. Also dont waste time getting a oem fan, get a better fan that fits and works with the voltages. higher airflow makes these last longer, although “videophiles” whine about fan noise… big babies, turn up the volume.Great exercise in projector repair, too bad it was done on a junk projector that is useless for anything but screwing around.P.S. led projectors SUCK. I use the Christie LEd projectors a lot and they are junk and dim as hell. try and get a 2500 lumen LED projector… you cant…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204662",
"author": "biozz",
"timestamp": "2010-10-29T15:06:20",
"content": "so as i can see it uses 3 different LCDs and filters for clarity with compact size?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204858",
"author": "Dex",
"timestamp": "2010-10-29T21:58:04",
"content": "Socket7 omg I will throw YOU to the trash. How can u be qqing what goddamn fan to put in. Voltage is ok then its ok and thats it. GET A FUCKING LIFE.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204872",
"author": "Socket7",
"timestamp": "2010-10-29T22:14:43",
"content": "Why have you invested such emotional energy into my choice of fan? That really can’t be healthy for you.U mad I used the right part? *trollface*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204970",
"author": "Oren Beck",
"timestamp": "2010-10-30T02:51:44",
"content": "If you are not going to post in an adult, sane fashion- please consider posting your crud in places that advocate crudflinging. I normally don’t often bother wasting effort on trolls, but there is a reason for today’s exception:HAD staff might consider importing the “disemvowelment” concept from BoingBoing:http://boingboing.net/2002/11/25/disemvowelment-antit.htmlSocial Conduct Hacks are something worth sharing :)Oh, about alignment issues. We used to make “witness marks” with several colors of Sharpie markers etc on areas OUT of the image path before moving a single part that might be a risk. The errors on the side of overcautious details tend to be less painful. With some cases of alignment issues literally being brainburningly touchy even if you do have full service docs. Some things like older analog- direct to drum photocopiers could eat *HOURS* of tech time if someone forgot to make witness marks for complex “moving mirror” stuff. Same with the “front surface” mirrors in both copiers and some projo TV units.The simplest demo of the difference between a conventional “bathroom mirror” and “front surface” ones can be shown with a pen on your bathroom mirror. Draw a line on the glass. Notice the appearance of TWO lines. The “offset” space between those lines shows how thick that mirror is. The thickness of the glass shown by that demo explains why some frustrating to diagnose issues come up in projo TV. As in that “Light Tunnel” mirror. If the mirror that was designed to be mounted “front service” out and it’s installed facing out, weird artifacts in the image can result..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2326133",
"author": "Coelestine L. Rutasindana",
"timestamp": "2015-01-07T11:29:31",
"content": "Can I get service manual for Epson projectors I have many Powerlite s8 , s10, s12, made in China Eb x18 and now Eb x25 new model made in Phillipines",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3265665",
"author": "David",
"timestamp": "2016-11-11T19:16:34",
"content": "i need the service manual for epson powerlite S12+ peojector",
"parent_id": "2326133",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "2476986",
"author": "Jeff Sammons",
"timestamp": "2015-03-13T08:56:12",
"content": "I have a quick questions also about obtaining a service manual for an older PowerLite 74c projector. Just a chirping sound – will not power on when you plug it into the outlet and no lights for power or lamp on the control center. I’m guessing it is probably something with the power supply. — But just that, guessing. Any suggestions or help would be appreciated or direction in locating a manual — I am working on this for a non profit group that really can’t afford an upgrade. From my understanding, it is not used often and still appears to be in good shape. I did notice one of the filters on the bottom had fallen apart.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2831320",
"author": "John",
"timestamp": "2015-12-10T01:39:29",
"content": "Hi,do you have any idea of the part number of FAN Sensor for EB-485W.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2867913",
"author": "Partha De",
"timestamp": "2016-01-03T16:10:47",
"content": "Can anybody tell me what is the flat orange cable which is connected between the LCD and the main board is called? I am working in a project and I need an extension replacement for that cable. If anybody can tell me where I can purchase that I will be grateful.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.481818
|
||
https://hackaday.com/2010/10/28/we-knew-we-were-doomed-when-the-t-shirt-cannon-bots-showed-up/
|
We Knew We Were Doomed When The T-shirt Cannon Bots Showed Up
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"cannon",
"robot",
"t-shirt"
] |
The newest addition to the Skynet armada is this
10-barrel t-shirt cannon
. It’s capable of storming the battlements at over twelve feet per second with a firing rate of three T-shirts per second (ooh, is that cotton?).
The members of Team 254, which is hosted by Bellarmine College Preparatory School, built the robot over the summer. This involved a full production cycle; planning, 3D modelling, acquiring the materials, and finishing the build. All of this is well documented in
their build blog
and for video, check out their
media page
.
We already know
how to customize the T-shirts
for use as ammo, now what this needs is
some tank treads
.
| 14
| 14
|
[
{
"comment_id": "204272",
"author": "typhon1126",
"timestamp": "2010-10-28T18:11:05",
"content": "These guys are The Cheesy Poofs, a FIRST Robotics Competition team, and they rock!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204293",
"author": "Marco",
"timestamp": "2010-10-28T19:25:39",
"content": "That is a pretty amazing creation. The only thing I am missing in the project log are the setbacks and bugs. Don’t tell me that everything just worked as originally designed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204341",
"author": "sM10sM20",
"timestamp": "2010-10-28T21:21:19",
"content": "Could tell from the image this was a FIRST robotics team. Most teams use a tank drive that looks very similar to this, and I’m pretty sure the wheels are standard kit provided. FIRST is an amazing program, awesome build!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204378",
"author": "Hirudinea",
"timestamp": "2010-10-28T23:24:01",
"content": "This could kill a dozen Maude Flandereses!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204383",
"author": "emilio",
"timestamp": "2010-10-28T23:41:15",
"content": "neat project! good thing those Bellarmine kids are so well-connected…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204391",
"author": "Jon",
"timestamp": "2010-10-29T00:50:58",
"content": "@sM10sM20 – Yep, I chuckled at the ol’ useless wheelchair wheels",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204449",
"author": "Tom",
"timestamp": "2010-10-29T03:37:42",
"content": "Major design flaw: Does not go around corners with three fixed wheels in a row…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204459",
"author": "Cindy Auligny",
"timestamp": "2010-10-29T04:15:50",
"content": "You’ve done a great job. So great to hear that those wheels are useless until you made this. So amazing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204554",
"author": "Tom",
"timestamp": "2010-10-29T10:15:39",
"content": "OK Cindy, since you asked for it:In fact, I see nothing goodin this project.This depicts a WEAPON!Weapons are made to /kill people/!Is there /no way/ these kids could havechosen a build project with a peaceful objective?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204718",
"author": "Soo-Hyun",
"timestamp": "2010-10-29T16:39:54",
"content": "@Tom: I also dislike six-wheel designs for that reason, but the wheels are slippery enough that the bot turns pretty fast anyway.I like the scuba tanks idea. Our team simply uses a 120 psi pneumatic pump coupled with a few gas reservoirs to store the pressurized air, but not only are they slow to pump up to pressure before each shot, but the process saps battery life. With the higher-pressure air from the scuba tanks, we wouldn’t need such big reservoirs.Programmer, Team 955",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204730",
"author": "Charles",
"timestamp": "2010-10-29T17:20:33",
"content": "In these designs, the center wheels are usually lowered by a small amount, forcing it to drive on 4 of the 6 wheels at any given time, improving it’s ability to turn due to the reduced scrub forces.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204974",
"author": "Spencer Haley",
"timestamp": "2010-10-30T03:14:40",
"content": "@Tom – Weapons are not made just to kill people.http://en.wikipedia.org/wiki/WeaponThey are also made to DEFEND. Weapons keep you safe. Statistics show that more guns owned in a city DECREASES violent crime because violent criminals are more wary of being SHOT.I assume you would have me give up my right to own a gun!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210696",
"author": "AJG",
"timestamp": "2010-11-11T03:44:40",
"content": "@Soo-Hyun – I think those wheels are the sticky ones from the 2010 FRC kit of parts. I don’t think they are slippery or that low traction would improve how well it turns. The robot drives like a tank with the right wheels being independent from the left wheels. As far as I know tanks can turn well enough.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210733",
"author": "Soo-Hyun",
"timestamp": "2010-11-11T06:23:02",
"content": "Oops, I guess I assumed they were the same slippery kind as those used for Lunacy because they looked similar. Never mind! I am, after all, only a programmer. :)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.601626
|
||
https://hackaday.com/2010/10/28/software-security-courtesy-of-child-labor/
|
Software Security Courtesy Of Child Labor
|
Mike Szczys
|
[
"Security Hacks"
] |
[
"bounty",
"firefox",
"mozilla",
"security",
"vulnerability"
] |
We couldn’t help but poke a little fun in the headline. This is [Alex Miller], a twelve year old who
claimed a $3000 bounty from Mozilla
. See, [Alex] is a self-taught security guru. When
Mozilla upped the reward
for discovering and reporting critical security flaws in their software he went to work searching for one. He estimates that he spent an hour and a half a day for ten days to find the hole. Fifteen hours of work for $3000? That’s pretty good!
Is it good or bad to pay for these kind of submissions? The real question: Is the bounty high enough to get blackhats to report vulnerabilities, rather than selling software that exploits them? Let us know what you think in the comments.
[via
Zero Day
]
| 34
| 33
|
[
{
"comment_id": "204244",
"author": "biozz",
"timestamp": "2010-10-28T17:04:44",
"content": "god damn i thought i started young XDhe is second only to zero-cool XP",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204245",
"author": "Gdogg",
"timestamp": "2010-10-28T17:05:30",
"content": "1st. I’m jealous. I wish I was that technically adept now, let alone at 12.2nd. Yeah, I think it’s great to encourage people to share this kind of stuff. I know I personally would put more work into it if I knew there was more than e-fame in reporting in big flaws.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204246",
"author": "Junglizer",
"timestamp": "2010-10-28T17:06:08",
"content": "I think, at the minimum it may provide incentive to those that have the skills to improve software but normally wouldn’t be bothered. If I had any clue what I was doing, the monetary incentive would increase my chances of spending time to fix this stuff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204248",
"author": "Aaron",
"timestamp": "2010-10-28T17:11:00",
"content": "Three grand doesn’t strike me as being near enough to make reporting a fresh 0-day vuln worth a black hat’s while; if being a black hat didn’t pay a living wage (i.e., a lot more than any measly three grand), it wouldn’t be such a big industry in the first place.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204251",
"author": "fluidic",
"timestamp": "2010-10-28T17:16:19",
"content": "Shouldn’t have any trouble getting into that competitive CS department now…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204252",
"author": "Denial",
"timestamp": "2010-10-28T17:17:04",
"content": "At least he doesn’t sing…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204256",
"author": "mess_maker",
"timestamp": "2010-10-28T17:23:19",
"content": "Good for him, he should be proud. I wonder how this will shape his future? It would be interesting to see what he is doing 15 years from now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204258",
"author": "BobSmith",
"timestamp": "2010-10-28T17:32:11",
"content": "It doesn’t make [sense] to put random things like [names] in [brackets]. Please [stop] raping [English punctuation].",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "204260",
"author": "Caleb Kraft",
"timestamp": "2010-10-28T17:49:30",
"content": "@BobSmith,Often, people go by usernames/nicknames on the web. This can cause a lot of confusion, especially when their name is a technical term, or just plain gibberish. Putting their name in brackets identifies it as their name. We’ve always done it and plan to continue. We are, however, aware that we may not have the best grammar. We’re trying to improve this.",
"parent_id": "204258",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "204259",
"author": "Gerrit Coetzee",
"timestamp": "2010-10-28T17:36:54",
"content": "It’s a tradition from when we used to force no-caps. I also like it because it lets me instantly distinguish who is responsible for the hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204261",
"author": "biozz",
"timestamp": "2010-10-28T17:49:48",
"content": "@BobSmithwhat are you talking about?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204262",
"author": "Eric Seifert",
"timestamp": "2010-10-28T17:50:15",
"content": "@Aaron, $3000 is a living wage in a lot of the world (China, India etc…) I would say $3000 is pretty decent, and that’s for only one exploit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204266",
"author": "johnmc",
"timestamp": "2010-10-28T18:00:13",
"content": "Great for the young man! Hope he goes far.Can I recommend a change of the title? American jurisprudence the way it is these days, it would not surprise me to see some child protective services freak out and go all roman on this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204268",
"author": "Taylor Alexander",
"timestamp": "2010-10-28T18:07:29",
"content": "If he found just one exploit a month, and got $3k for each one, it would be an okay wage. Not as much as he’d make as a programmer, but possibly much less demanding – he wouldn’t have to report to work at a given time, etc.Either way, I certainly think these things are fair to pay for. Some people might want more money and they might sell to the black market, but for all the good people out there who aren’t in it for the money, $3k is enough to justify giving it up to the good guys. Sure, they could be a bad person and make more money, but there are plenty of people out there who don’t work that way, unless its lots of money.-Taylor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204270",
"author": "Gert",
"timestamp": "2010-10-28T18:09:13",
"content": "They ought to support that kid more. Give him a scholarship. He sure has got some talent.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204283",
"author": "IceBrain",
"timestamp": "2010-10-28T18:45:00",
"content": "@Taylor Alexander:Programmers might get paid more for month, but they don’t work 15 hours/month either. He got $200/hour, that’s a high salary even for a programmer.If he wasn’t 12, it’d be a nice job complement.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204284",
"author": "Dex",
"timestamp": "2010-10-28T18:56:40",
"content": "You call this child labor, better if you don’t know what even younger childrens have to do just to make this amount of money in a year in India.Exploit development and bug hunting doesn’t paying of that well. Those who were selling exploits are probably know this already. You can get more money with normal coding job. Also this kind of work require special thinking, not everyone has the ability to be good at it. Let the few -who are- make money this way.BTW I have no idea whats this article doing on had…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204291",
"author": "andrew",
"timestamp": "2010-10-28T19:17:06",
"content": "Microeconomics would suggest that as supply (of working exploits) decreases, the price people (bad guys) are willing to pay should increase. Although, if some exploits are harder to find than others, then we would expect rewards like these to result in discovery of the low-hanging fruit, so to speak.So, if you’re a bad guy and you want to buy an exploit, the remaining ones are going to be more expensive because 1) there will be fewer blackhats to buy them from and 2) they will require more time and/or skill to identify. As a result, the system itself might guarantee that not all the possible exploits are identified because the cost to identify them increases as more exploits are identified.If rewards like this didn’t exist, then blackhats would have a greater supply of exploits because presumably it would take longer for software firms to close holes they are not aware of. Greater supply exists because blackhats could keep selling the same exploits over and over again.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204300",
"author": "DanAdamKOF",
"timestamp": "2010-10-28T19:52:42",
"content": "@DanielI LOL’d.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204302",
"author": "Brian",
"timestamp": "2010-10-28T19:56:12",
"content": "Usually these little nerds look like little *fill in word here*, but i applaud this guy for not looking like a *same word* justin bieber and for doing good work haha",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204355",
"author": "Chiablo",
"timestamp": "2010-10-28T22:29:56",
"content": "I think that more important than the $3000 bounty is the recognition he received for potential university recruiters or job headhunters. This is definitely portfolio worthy if he decides to get into the security or IT field.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204359",
"author": "jeditalian",
"timestamp": "2010-10-28T22:41:30",
"content": "i never knew anybody paid at all for bug reports. i thought they were free, just pointing out “hey fix this” that is awesome, a lucky kid, and do you think he put the money in savings for his future or built a six-core desktop?no more anonymous bug reporting from me!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204370",
"author": "Zaphod",
"timestamp": "2010-10-28T23:02:39",
"content": "There are even companies that pay you for finding bugs and make money by selling the knowledge to the company that makes the software. The problem is, on the black market one can achieve a price that is ten times higher.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204379",
"author": "Adam",
"timestamp": "2010-10-28T23:28:09",
"content": "@jeditalian;Mozilla only pays for dangerous exploits (remote code exec) found, so does Google for Chrome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204402",
"author": "Jeremiah Blatz",
"timestamp": "2010-10-29T01:28:09",
"content": "Okay, so the basics. How to make money finding vulns:1) Be a blackhat. Find a vuln, exploit it to steal peoples’ WoW gold, sell it back to them for real money, etc. (Or sell it to someone who will steal the WoW gold.)2) Sell to 3rd parties. There exist agencies in every major government, and also commercial companies, that buy vulnerabilities. They pay good money for vulns. This is probably the sweet spot, since you make decent dough, and you don’t have to go to jail (unless you sell them to the wrong government).3) Sell to 1st parties, what this kid did. This doesn’t make you much money. With most vendors, you’re lucky if they even thank you. However, you get exposure, and it’s sometimes (e.g. with Mozilla) less hassle than selling to a 3rd party. If you want an “in” in the security industry, this is a good way to make a name for yourself.The people that the 1st-party bounties attract are the people who want exposure. Mozilla probably will not compete with idefense, and certainly not with some shadowy TLA. However, white hats are more likely to look for vulns is a product whose vendor appreciates their work (Mozilla) than one who may try to sue them (Apple). It is extremely unlikely that $3k will sway a blackhat, but it is likely to sway whitehats.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204405",
"author": "Cedric",
"timestamp": "2010-10-29T01:37:33",
"content": "In four years he will have the same exact hair cut than Justin bieber …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204433",
"author": "Maave",
"timestamp": "2010-10-29T02:23:24",
"content": "I feel very inferior now. Thanks a lot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204489",
"author": "jeditalian",
"timestamp": "2010-10-29T06:08:37",
"content": "pretty sure you’d find more vulnerabilities in chrome, plus Google is über wealthy. sometimes i feel that i could do more when i was 12 than i can do now. i can hardly remember HTML but back then, i was proficient.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204516",
"author": "herpaderpderp",
"timestamp": "2010-10-29T09:18:17",
"content": "Kinda jealous. Finding a javascript bug isn’t that big but still for a 12 year old pretty cool. Maybe he just “fell” over it and that’ll be his one and only bugreport (though he seem’s to know his stuff, when i look at the report) but let’s see what the future of this kid brings.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204519",
"author": "bob",
"timestamp": "2010-10-29T09:23:18",
"content": "Like the photo’. Carefully arranged.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204520",
"author": "Dude",
"timestamp": "2010-10-29T09:25:37",
"content": "This is it:https://bugzilla.mozilla.org/attachment.cgi?id=461339nothing to see folks, move on. Textbok example.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204562",
"author": "NFN_NLN",
"timestamp": "2010-10-29T10:34:49",
"content": "Here is the actual bug report:https://bugzilla.mozilla.org/show_bug.cgi?id=583077",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204592",
"author": "jbot",
"timestamp": "2010-10-29T11:52:04",
"content": "@Dude: maybe I should pay attention to what links I click from here on out… *dons dunce cap*",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204855",
"author": "D_",
"timestamp": "2010-10-29T21:43:15",
"content": "First way to go Alex. Hope Alex Keeps a level head, and is aware that the next payday may not come so easily, in so little time. s Alex should be advised to diversify, as not to put all his eggs in one basket.Such awards are a wise investment if than convince current users or potential users open source software is secure. A need to make too many such awards, would have the reverse result, and may curb the donations coming in the front door that make these awards possible..There is not a thing wrong with the post title. Concern about child protective services, in the manner it was brought up, has to be some more pre-election fear mongering, we just can’t get away from.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.552098
|
||
https://hackaday.com/2010/10/28/hacking-a-disobedient-act-that-drives-change/
|
Hacking: A Disobedient Act That Drives Change
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"corey doctorow",
"disobedience",
"eula",
"warranty"
] |
[Adam Dachis] published an essay a couple of days ago called
Why We Hack
. In it he discusses the outlook that hacking, on all of its various levels, is a simple form of disobedience. We have to agree with him. Manufacturers would like you to think that voiding the warranty is as good as smashing the product to bits. But we all know that if you can’t crack it open you don’t really own it. [Adam] says we can sit around and complain about it, or we can do better. So crack it open, dump the firmware, and make it do your bidding.
If you haven’t already seen it, you should also go back and
watch [Corey Doctorow’s] keynote address from Toorcon 8
. He discusses freedom of information and hits especially hard on End User License Agreements (
EULA
) and the ills they cause. We’ve never seen someone hit the target quite as well as he does in this fantastic speech.
| 16
| 16
|
[
{
"comment_id": "204223",
"author": "Brennan",
"timestamp": "2010-10-28T16:14:23",
"content": "@TomasitoI came to the comments to post the exact same thing. Seriously HAD writers, if you’re only writing one or two paragraphs about a link, PROOF READ IT. It literally takes a minute to read over and if you can’t catch stupid typos like this that’s just unacceptable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204229",
"author": "fartface",
"timestamp": "2010-10-28T16:34:14",
"content": "Why do I hack? because no corporation can make the things I want.I want my media center to be DRM free and play all video formats… GoogleTV=fail AppleTV=Fail Windows Media Center =FailI want a router that uses a real OS that is a honest price.Cisco = Fail. Nokia=Fail.Ad Nauseous.. I want stuff that was built like it was in the 60’s and 70’s. WEll designed for the consumer, with schematics and nothing to block me. Hell my dad’s radio from 1976 opened easily to get to the circuit boards..Make stuff that is open, not this closed low grade crap they shovel at us.Robots? gotta make em because companies wont.. The Rovio is a perfect example of utter FAIL.And yes, I do want a doorbell that fires marshmallows at you if you are wearing a hoodie. Dang emo kids, hood off when you come to my house.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204234",
"author": "Olestra",
"timestamp": "2010-10-28T16:39:48",
"content": "I will have to disagree — A hack may also be an act of disobedience, but first and foremost, a hack is a way to extend the function of a technology — from silly (musical printers) to serious (blood oxygen sensor) hacking is invention. If your main reason for hacking is disobedience… go hold a cardboard sign at a rally somewhere. On the other hand, if you want to build cool stuff and explore technological possibilities — come over to my shop.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204250",
"author": "Aaron",
"timestamp": "2010-10-28T17:16:06",
"content": "Hacking == Stonewall? Fucking laughable, and no better than I’d expect from Lifehacker or anything else on the Gawker network.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204254",
"author": "fluidic",
"timestamp": "2010-10-28T17:18:26",
"content": "@Brennan“PROOF READ” should either be hyphenated or a compound word.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204255",
"author": "Trollicus",
"timestamp": "2010-10-28T17:19:10",
"content": "Lately two things have grabbed my attention TI going after people who hack their calculators while simultaneously trying to entice hackers to switch to their MSP430 platform.I just had to link this.http://www.hulu.com/watch/66003/dilbert-animated-cartoons-software-license#s-p38-sr-i0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204273",
"author": "lobster",
"timestamp": "2010-10-28T18:13:50",
"content": "@OlestraI agree. I have noticed that some people who hack/make things are going out of their way to make it seem like some kind of fight against the man. I love tech because I do. I love to alter things because well I can and its fun. But I never thought of it as some kind of disobedience act. Thats why I feel like I could never go to a hacker space or to one of those make fairs. I would not be accepted because I am not taking down the man (which I have heard people say in interviews).I think that to do anything now days you need some political or social reason. Why can it not be just for the hell of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204277",
"author": "Davorak",
"timestamp": "2010-10-28T18:28:07",
"content": "@Olestra – I agree whole heartedly.@lobster – I only have experience with one hacker space, but taking down the man has never been a priority. Things are taken apart because it is fun or simply because it is there to be taken apart.I assume that when I see people in interviews talking about taking down that man that they are just trying and in part failing to communicate to a larger audience what the impact of their hackerspace is on the rest of society.In short, lobster, you should check out a hackerspace and see what your local one is like first hand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204338",
"author": "Brennan",
"timestamp": "2010-10-28T21:09:20",
"content": "@fluidicI’m sorry, when have I ever written a HAD article? I am allowed to make mistakes in my comments, especially when it is an extremely nitpicky mistake (in which the meaning was clear and didn’t require that you waste your time re-reading the sentence) that you never would have cared to mention if I wasn’t criticizing the terrible writing skills of the average HAD submitter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204339",
"author": "lobster",
"timestamp": "2010-10-28T21:16:23",
"content": "@DavorakI hear you about that. The main thing I find odd is mainly on the site for make magazine (which I have every volume of make) that it slowly went from lets learn to a more political movement. I mainly see this on that site.Thats why I like Hack a Day. Its about the hacks. I do want things to be easily understood and modified such as radios back in the day and I do see some places doing that. I would think the Linksys/Cisco routers that let you put your own firmware on and people putting com ports and webcams on it is a sign of how things have gotten better.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204358",
"author": "Zundfolge",
"timestamp": "2010-10-28T22:37:25",
"content": "Hacking is a form of “civil disobedience”?Come on. Why do we have to politicize or give some grand sociological significance to every effing little thing we do?Maybe some of us just like making stuff. Sheesh.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204371",
"author": "jeditalian",
"timestamp": "2010-10-28T23:03:06",
"content": "if you need a proofreader, paid or volunteer.. i’ll do it. Just don’t make me write the articles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204445",
"author": "MrBoopBeep",
"timestamp": "2010-10-29T03:10:10",
"content": ">Why Engineers and other tech people fix their own problems rather than wait for someone else to fix it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204464",
"author": "loldongs",
"timestamp": "2010-10-29T04:35:09",
"content": "Maybe hacking government webservers or writing politically targeted viruses would be a form of civil disobedience but I fail to see how blinking an LED with twenty arduinos is sticking it to the man in any way.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204512",
"author": "MoJo",
"timestamp": "2010-10-29T08:58:45",
"content": "Hacking has nothing to do with disobedience, however cool that might sound. It is about my right to mess with the stuff I own.Plus I like making stuff and learning.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204877",
"author": "Jake",
"timestamp": "2010-10-29T22:31:20",
"content": "90% of the studd posted on this site does not even remotely qualify as a ‘hack’, so I don’t know why the hell this article is on here.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.655353
|
||
https://hackaday.com/2010/10/28/artisans-asylum-takes-on-the-machine/
|
Artisans Asylum Takes On The Machine
|
Jakob Griffith
|
[
"Misc Hacks"
] |
[
"artisans asylum",
"breakfast",
"machine",
"wallace and gromit",
"yum"
] |
You’ll probably lose your appetite after watching
part one
and
part two
of Artisans Asylum as they Take on the Machine. Based around the Wallace and Gromit “automated”
set of contraptions
, the team from Boston set out to make their own
breakfast machine
. Of course, with only three weeks to work it didn’t exactly turn out as planned. They certainly had some good ideas though, and we were amazingly impressed at their egg cracking machine. But in the end, we wouldn’t want to be first in line for a plate of breakfast. Next is the final team, The Transistor, who will be making a live action zombie video game.
[Thanks Deven]
| 6
| 6
|
[
{
"comment_id": "204173",
"author": "Mason.moore",
"timestamp": "2010-10-28T14:12:41",
"content": "First. Haha.I’m hungry. And I wish I had breakfast machine. Maybe I’ll try at this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204176",
"author": "uzerzero",
"timestamp": "2010-10-28T14:39:41",
"content": "“This doesn’t make breakfast! It just shoots you! Ahhhh!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204331",
"author": "neorazz",
"timestamp": "2010-10-28T20:53:21",
"content": "the if it just shoots at you and doesnt work then it doeas work cause wallaces didnt work right either",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204377",
"author": "Limey",
"timestamp": "2010-10-28T23:17:49",
"content": "@userzeroI was waiting for someone to say that XDI’m liking the pancake mechanism, but still feel they could have done alot better, but I guess the majority of them just did it over the weekends or whenever they weren’t working, damn jobs spoiling our fun :P.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204492",
"author": "zool",
"timestamp": "2010-10-29T06:43:19",
"content": "crackin toast grommiteven though most of it didn’t work very well, it still kinda worked and was fun to watchbetter than the tron episode where everyone’s arguing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205630",
"author": "AKB427",
"timestamp": "2010-10-31T07:05:07",
"content": "@neoraz: Yep. That was intentional; if failure is part of the plan, the plan cannot help but succeed.@Limey: Yep, we were running fast and low budget, and also we don’t just have day jobs, we have nine thousand square feet of shop to build out and twenty classes a month to schedule, market, and teach. With some tuning, though, I think it would have worked fine; the one side it did cook actually looked pretty good, and I thought the double use of the second pan for eggs was very clever.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.701062
|
||
https://hackaday.com/2010/10/27/unreal-speaker-build/
|
Unreal Speaker Build
|
Mike Szczys
|
[
"digital audio hacks"
] |
[
"concrete",
"lathe",
"odyssey 2",
"speakers",
"stereo"
] |
These speakers are hand made and almost one of a kind. [Lluís Pujolàs] didn’t come up with the original design, but he sure did an amazing job of crafting them, including
an eleven page build log
(
translated
). They’re called the Odyssey 2, after the original design. The shell-shaped cavity on the bottom was built as a wooden skeleton first, then covered over for the finished shape. But the mid and high range enclosures were turned on a lathe from wood glued-ups. A serious machine shop is necessary to do this kind of woodworking. The bases are poured concrete, impregnated with lead beads to help with vibration isolation. At 330 pounds each it’s understandable that he tested them on wheels before parking them in their final position as seen above.
[Thanks Neorazz]
| 50
| 50
|
[
{
"comment_id": "203783",
"author": "grenadier",
"timestamp": "2010-10-27T21:03:46",
"content": "Oh. My. God.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203786",
"author": "Grovenstien",
"timestamp": "2010-10-27T21:07:13",
"content": "Uh humm!!!!http://www.bowers-wilkins.co.uk/display.aspx?infid=1729&sc=hf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203787",
"author": "pod",
"timestamp": "2010-10-27T21:07:27",
"content": "insane.do they have at least a good sound?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203789",
"author": "yobyfed",
"timestamp": "2010-10-27T21:09:04",
"content": "All that fancy crap and not a tv in sight.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203802",
"author": "neorazz",
"timestamp": "2010-10-27T21:35:41",
"content": "hes using a seas driver for the mid and sub and scanspeak tweeter not low end drivers.the nautlius/ fibonacci shape is suppose to be able to phase cancel the drivers for perfect sound reproduction with no cabinet coloration/ diffraction no speaker distortion thru a tapered tube design overall overall $2000 (EST) vs $60000",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203808",
"author": "Mike of England",
"timestamp": "2010-10-27T21:52:24",
"content": "Yes, B&W, but Technics tried too.Might have been horn loaded though. These are beautiful,bet they sound it too. Time aligned, I haven’t read the log, are these tri-amped?God, they’re Gorgeous. I must find time to read up on them. Thanks for sharing.What did yobyfed say?Why have a TV in sight, to ruin the soundstage?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203811",
"author": "cocoa",
"timestamp": "2010-10-27T22:02:19",
"content": "Dunno why people so loving bigass 2.1s when you can buy a cheap 5.1 system and enjoy it more (especially if you gaming).Just need to position the speakers properly close to you. Also try to use something like this in a flat, your neighboors would come to beat you apart with baseball bats even if you would put it to mid volume.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203813",
"author": "kristian",
"timestamp": "2010-10-27T22:08:52",
"content": "@cocoa: they’re probably not designed solely for being loud. this isn’t a 2.1 system either… most really high-end speakers are simple stereo.that is some beautiful craftsmanship. i’ve made a few speakers and i can barely make rectangular boxes look decent :P i will definitely be reading that build log tonightalso, it’s a shame that i could never live with being this rich:http://www.wilsonaudio.com/product_html/alex_intro.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203816",
"author": "jamieriddles",
"timestamp": "2010-10-27T22:15:57",
"content": "gotta love audiophiles",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203817",
"author": "strider_mt2k",
"timestamp": "2010-10-27T22:22:08",
"content": "@cocoa: The problem is you are comparing an all-you-can-eat buffet with the classiest dinner at the best restaurant in town.Yes, one has food in abundance, but the other is specifically crafted for maximum deliciousness.(Yum!)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203821",
"author": "chr0naut",
"timestamp": "2010-10-27T22:27:22",
"content": "Unfortunately for these types of super-fidelity speakers, it is often the source that is the fidelity bottleneck.Beyond a certain level of chasing better sound fidelity, it is just a waste of money. The sound system cannot achieve higher fidelity than the recording/mastering process.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203827",
"author": "biozz",
"timestamp": "2010-10-27T22:48:17",
"content": "its nice but im disappointed that they did not come up with the designif i were to spend hours making something i would have designed it my self but that’s just me XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203829",
"author": "hoooooooooooooooooorj",
"timestamp": "2010-10-27T22:51:45",
"content": "The odd part is that the actual spiral enclosure required far less in terms of required tools — Is there a reason why the other two enclosures had to be made from wood as opposed to wooden frame with fiberglass filling in over it like the spirals?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203830",
"author": "Quintin",
"timestamp": "2010-10-27T22:52:28",
"content": "I’ve had that build log in my bookmarks for about three years now.Speakers like these are quite high on my todo list. As soon as I have time to research drivers and filters…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203831",
"author": "vonskippy",
"timestamp": "2010-10-27T22:58:14",
"content": "“The bases are poured concrete, impregnated with lead beads to help with vibration isolation.”I hope he remembered to stir the lead/concrete mix thoroughly with a smooth clockwise motions using a pure Copper stirring rod to avoid mixed subharmonics interfering with the polyphonic gravitons providing an unhealthy magnetron feedback loop to his wiring system.Audiophiles and religious nuts – it’s useless talking SCIENCE with them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203838",
"author": "Mike of England",
"timestamp": "2010-10-27T23:06:27",
"content": "The bottleneck in any system is the room the speakers are in. Room acoustics is the biggest obstacle to overcome. A perfect room and your typical stereo sound stage can become massive in perceived size, a surround set up is a different ball game. My infinite baffle subwoofer can shake my house, the ceiling shakes the doors rattle and windows buzz, but whilst this is going on, I can hold a telephone conversion, and my neighbour never hears or comes knocking. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203841",
"author": "Mike of England",
"timestamp": "2010-10-27T23:08:03",
"content": "My grammar sucks. Conversation not Conversion",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203844",
"author": "Uh huh",
"timestamp": "2010-10-27T23:15:41",
"content": "@vonskippy:The speaker horns and enclosure was otherwise “relatively” light, why is it ridiculous to want to have heavy bases to properly anchor them? Vibration isolation is a real measurable thing that can affect the sound of a speaker.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203855",
"author": "WickedShell",
"timestamp": "2010-10-27T23:48:13",
"content": "@vonskippynow, now, let’s be kind, us linux geeks, or gun geeks (seriously look up some of the wildcat cartridges), computer geeks, English geeks, electronics geeks, are all obsessed with optimizing everything. And once we’re down optomizing we make it look pretty, and simpler, and add little things that may make a difference, even if it’s only in your head it counts… And it’s not just audiophiles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203899",
"author": "Anonymouse",
"timestamp": "2010-10-28T01:34:16",
"content": "@chr0nautNot really. Building a linear speaker is much more difficult than building a linear amplifier, not to mention the hell played by room acoustics.Find a comfortable pair of studio headphones for the same prices as an average set of speakers, and you’ll have better sound quality and pay much less for amplifiers and sound-proofing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203917",
"author": "Fallen",
"timestamp": "2010-10-28T02:22:49",
"content": "I’ve always been a fan of how these Nautilus-like speakers look. I haven’t had a chance to hear them though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203943",
"author": "groogs",
"timestamp": "2010-10-28T03:37:32",
"content": "@vonskippy:I just can’t believe he’s ruining the sound by having the speaker wires sit directly on the floor, with no ceramic isolation posts. But what do you expect, it doesn’t even look like the wires are the same length, so the sound will take longer to get to the right speaker and be out of phase.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203947",
"author": "2k4s",
"timestamp": "2010-10-28T03:41:01",
"content": "ditto Mike of England. you can have the sweetest hardware but the room is the real beast that you need to tame before anything else. It’s ok to go for audiophile results with a nearfield monitor system in a poor room but with a setup like this it seems like such a waste to have it sitting there in an unbalanced room. Take nothing away from the build though. that is admirable. the dedication and craftsmanship. I’m jealous actually. but hopefully he has a better room to listen to them in. Props to Lluís and his helpers for a great build. very impressive fabrication.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204003",
"author": "mjrippe",
"timestamp": "2010-10-28T04:59:55",
"content": "Audiophools…Sorry but I’ve worked on the recording end of audio and these folks are spending way too much trying to reproduce things that are not there in the original recordings. It is not a matter of “ears”, just plain science and math.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204021",
"author": "Mansoor Ahmed",
"timestamp": "2010-10-28T05:52:46",
"content": "@Neorazz: Great! you have summarized this post!! Hats off to you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204047",
"author": "nateL",
"timestamp": "2010-10-28T08:35:18",
"content": "Regardless of the debatable audiophilic superiority, a truly impressive and beautiful build. The fit and finish is jaw-droppingly good. Well done, Lluis, well done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204074",
"author": "Bob",
"timestamp": "2010-10-28T09:36:30",
"content": "http://en.wikipedia.org/wiki/The_Emperor%27s_New_Clothesthat is all",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204090",
"author": "vasskk",
"timestamp": "2010-10-28T10:10:38",
"content": "b&W nautilus.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204114",
"author": "blue carbuncle",
"timestamp": "2010-10-28T11:16:31",
"content": "I’ve got a $3000 grounding wire that will really make the notes less muddy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204116",
"author": "Mike of England",
"timestamp": "2010-10-28T11:16:55",
"content": "Us poor Audiophools have to make the best of what the all too often, crappy engineer dishes up.Audiophools…Sorry but I’ve worked on the recording end of audio and these folks are spending way too much trying to reproduce things that are not there in the original recordings. It is not a matter of “ears”, just plain science and math.We never try to reproduce what isn’t there. This Guy obviously has a cheap setup.Take your listening amplifier, any amplifier. Use the same parts copy the amp, split the circuit in half. Use two separate power supplies and listen to the two of them see which sounds better. Then throw the power supply away, and run it off a battery. An Audiophool knows the Amplifier is as good as its supply, s/he can’t get more. If it wasn’t recorded, you won’t hear it. If your rectifier circuit picks up rfi and mains born noises, you miss the quiet parts of the recording, reverb picked up by a mic or, I have known, a squeaky kick drum pedal. whatever sound was recorded medium, be it analogue, or digital, the Audiophool will get their system to reproduce it .Don’t employ this guy to do your masters, he uses science and math not ears, WTF? We’d all have the same systems to play our audio, wouldn’t we?Mike, Audiophool",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204117",
"author": "Mike of England",
"timestamp": "2010-10-28T11:20:18",
"content": "whatever sound was recorded medium, be it analogue, or digital, the Audiophool will get their system to reproduce it .Sorry, meant to say Whatever medium was used for the recorded sound, ie CD Vinyl etcTold you my Gramner was bad",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204127",
"author": "fartface",
"timestamp": "2010-10-28T11:50:23",
"content": "Um no.http://www.bowers-wilkins.com/display.aspx?infid=1457They are NOT an original design. he splashed molds off of a set of someone else speakers or simply copied them.If they are copies, then guaranteed it has crap drivers in it instead of the hand made drivers that are in B&W speakers.Glad to see that HAD is not even doing fact checking.P.S. anyone that wants those in his living room is a nutjob. They actually do not sound very good compared to other brands that are less money and far better built. B&W’s are for the wackjob rich guy that wants his home to look bizarre. and yes I have heard those speakers myself(The real ones not the cheap one off copy in the link) I do real home automation programming with AMX or Crestron gear for these people.. $380.00 each light switches and $190.00 each wall plate covers are nothing to people that actually waste money on B&W speakers.Over here I have a 3d rendition of a Monet done by Salvador dali while he was dropping acid… I paid $48,000,000 for it, isn’t it wonderful?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204135",
"author": "JM",
"timestamp": "2010-10-28T11:57:52",
"content": "HI-DE-OUS.Sorry.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204143",
"author": "Lucia",
"timestamp": "2010-10-28T12:22:18",
"content": "I haven’t seen any attempt at measuring the performance of these because, duh, this is a cargo cult nutjob. Just the same shape as B&W Nautilus.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204150",
"author": "TDJ",
"timestamp": "2010-10-28T12:45:59",
"content": "What’s really strange: he seems to have a family, that means probably somehow convinced his wife to accept the speakers.Normally anything but shoe-box sized good design that fit in a book case has a VERY low WAF.And as we all know WAF is king if you have a family.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204162",
"author": "jim",
"timestamp": "2010-10-28T13:46:04",
"content": "No, the design is from another source, and the spiral cabinet should be functional. Whether it was worth the time and effort is anybody’s guess, but there’s logic to the design.Besides, you could argue that any halo model isn’t about function so much as aesthetics and exclusivity. Horn designs do work, I’m just not convinced that the incredible price of the B&W Nautilus could ever be warranted.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204163",
"author": "Garbz",
"timestamp": "2010-10-28T13:46:14",
"content": "@Mike of EnglandWe can hear and measure differences in amps, sources, speakers and even room design. We can not hear the differences between cables, powersupplies or other snake oil.Who are we? We are the audiophiles who have never been able to pass a double blind test on the above.Rectifier circuit picking up RFI and mains noises which somehow magically makes it through a giant low bandwidth transformer, massive amounts of filtering, and audibly affects your music despite the noise floor of any cheap amplifier already measuring down the 96dB range? Please don’t insult our intelligence, there’s some engineers who read these pages. Religion belongs on another blog.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204164",
"author": "nebulous",
"timestamp": "2010-10-28T13:48:47",
"content": "@ fartfaceSomeone who goes through this amount of trouble to reproduce a pair of speakers would actually try to use good quality drivers. Your ‘guarantee’ is rather empty.Please wake up to the fact that it doesn’t have to come from a name-brand to have top-notch fabrication. Someone with a shop like they have will actually be able to make professional grade stuff.I also like how you’re slamming the reproductions for being ‘obviously’ inferior to the originals, while similtaneously trashing the originals for not sounding good anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204205",
"author": "Mike of England",
"timestamp": "2010-10-28T15:46:37",
"content": "@Garbz You’re saying that an amp running off a transformer and one diode sounds the same as a transformer, bridge rectification, correct capacitance and even regulation? You happy with a Wal Wart? I don’t use fancy wires, I use the correct gauge and type, no snake oil needed. As far as cables are concerned, there is a so called skin effect being looked into by one company. You can hear a difference if the person that made your gear used the wrong cable. I’ve seen loads of quality equipment fitted with in correct wire. I had a JVC amplifier that contained 3 wires,( left right and gnd signal in) in a plastic sheath. I ripped them out and used shielded wires. Sounded different to me. I agree 1000 bucks for a metre of silver wire is snake oil.Whats the best oil for your car, or is it all the same, you can’t feel an improvement when you drive?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204231",
"author": "Tom",
"timestamp": "2010-10-28T16:35:36",
"content": "I strongly dislike the idea of producing 660 pounds of toxic waste for this purpose.Mixing lead into concrete? That is a crime!I would understand it if he were using leaded concrete e.g. for shielding his neutron source if he was building a small thermic nuclear reactor, like, say, for domestic heating purposes.But wasting poisonous lead for a home entertainment system? That is outrageous!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204236",
"author": "Gene",
"timestamp": "2010-10-28T16:48:15",
"content": "Yes there is alot of engineering involved in speaker design but if you look at the HIGH END industry it is full of inconsistencies and pure snake oil. Several examples would be amplifiers and speaker wire. Anyone wanna try a challenge?http://www.davidnavone.com/a2000/Amp%20challenge%202001%20Revision.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204257",
"author": "vonskippy",
"timestamp": "2010-10-28T17:28:30",
"content": "I’d like to point out that “blue carbuncle’s” $3000 grounding wire is pure rubbish – worthy of Radio Shack sound system only.Any REAL sound engineer will tell you that GOOD grounding wires start at $8000 and up, because they provide channelized copper molecules to insure a free flowing and impedance free pathway for electrons to travel.Anything less and your sound is just plain crap.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204306",
"author": "nick",
"timestamp": "2010-10-28T20:04:12",
"content": "I cant tell the difference between $10 Logitech speakers and a perfectly balanced tube amp. I just cant.why?My ears are not that good.Same probably goes for the lot of you, the only thing that really matters here is WHAT you are trying to amplify and reproduce, its not the speakers that makes the difference its the source.$1 says the lot of you with high end speaker systems listen to 198bit mp3 audio half the time and cant tell the difference between FLAC.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204334",
"author": "jim",
"timestamp": "2010-10-28T20:57:55",
"content": "It’s the other way around: speakers are most important, followed by amp then source. Obviously you could split hairs here, but speakers are what you actually listen to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204336",
"author": "TruthHertz",
"timestamp": "2010-10-28T21:00:35",
"content": "Skin effect in audio cables…? I smell B.S.Skin depth in solid copper at 20 Hz — .571 ”Skin depth in solid copper at 200 Hz — .181 ”Skin depth in solid copper at 2000 Hz — .055 ”Skin depth in sold copper at 20000 Hz — 0.018″Looking at it, if you’re using 12 gauge wire, the skin effect is irrelevant until you get into the 1000’s of Hz. True, from 2khz to 20khz there is a 3x increase in effective cable resistance due to thinning skin, but in a 12-gauge cable with a nominal resistance of 1.588e-3 ohms/ft, that amounts to around 0.06% change with respect to the nominal impedance of the load (8 ohm). In other words, a teardrop in an olympic swimming pool.Still worried it? Take 16 strands of #24 magnet wire, and twist it into a “rope” with a drill motor. Strip and join all the strands at each end, and solder a lug at each end. Now you have a Litz cable that has a linear resistance comparable to #12 AWG solid, wherein skin effect plays no role at all.Seriously, the effect of your curtains, bean-bag chair, overstuffed lazyboy, and even the golden retriever lying on your Pergo floor has orders of magnitude greater effect on the sound of your audio system than any skin effect.Audiophiles need to learn to distinguish theoretical effects from real-world effects. What’s next? Should we draw the curtains because sunlight shining on speaker binding posts could release photo-electrons that produce a pico-volt DC offset, which works to reduce the dynamic range amplifier?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204360",
"author": "G2",
"timestamp": "2010-10-28T22:41:38",
"content": "ahhh… I love arguments about audio. So much entertainment.+1 to bobs reference to the emperors new clothes.Fantastic fabrication regardless of sonic quality.For those looking for a good source of audio information without all the usual bshttp://sound.westhost.com/articles.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204457",
"author": "Garbz",
"timestamp": "2010-10-29T04:07:11",
"content": "@Mike of EnglandNo I’m not. I’m calling bullshit to claims of RFI on your power supply causing an audible change in a system which is not measurable. Filtering out RFI is trivial. Filtering out mains noises… well that’s what those capacitors are for, the ones that are in every amp from your $10 Akai to a $6000 Electrocompaniet.As for skin effect? Yeah it’s quite a problem. … If you’re blasting a signal in the MHz down the cable. But in the audible region… well do the math and you’ll see it creates such a very minor resistance change in the cable which will further be reduced by the interaction of the systems with the cable resistance at either end. Not an issue.Funny you should mention oil in the car. Look at the back of the bottle, and they’ll all say the same thing. Conforms to API xxxxxxxx. Measured in a lab with the finest equipment. Refined in a way to ensure that the spec is only JUST met, otherwise it’s less profit. Yeah I use cheap oil in my car, and it runs just fine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205241",
"author": "anon",
"timestamp": "2010-10-30T17:07:38",
"content": "@TomI know you are joking, but lead aggregate in concrete is for gamma shielding. Neutron shields are best if they contain a high percentage of hydrogen. Concrete is <10% hydrogen when it is freshly poured.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205244",
"author": "carsloth",
"timestamp": "2010-10-30T17:13:12",
"content": "I think maybe some of us have missed the point. The guy built custom speaker boxes that look different than the standard cube plus showed us a detailed account of how to build our own or use the method to design our own. As for weather they are good audiophile grade speakers or not is highly individual.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "213465",
"author": "Eirinn",
"timestamp": "2010-11-16T18:59:09",
"content": "Heard once that there isn’t a big difference in low price speakers and high end brand. What does matter is the drivers and so on – AFAIK.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.784201
|
||
https://hackaday.com/2010/10/27/power-supplies-and-transformers-a-learning-experience/
|
Power Supplies And Transformers; A Learning Experience
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"ac",
"converter",
"dc",
"transformer",
"tutorial"
] |
[Ladyada] is working on
a tutorial series covering power supplies
. If you’ve ever built an electronic project you’ve used some type of power supply but we think that most people have no idea how you get from mains power to the DC voltages that most small projects use. So if you want to learn, get started with the first installment which
covers AC/DC converters
based on a transformer like the one seen above.
These transformers are inside the heavy and hot wall-wart plugs that come with many electronics. We used one along with a breadboard power supply when
building the pumpkin LED matrix
. They use a pair of coils to step down the voltage to a much smaller level. From there it’s a matter of rectifying the AC into DC power, which she talks about in an easy to follow discussion.
We understand this type of converter quite well but we’re a bit foggy on switch-mode AC/DC converters that don’t use a transformer. They’re much better because you don’t have to build a regulator into the target project like you do with wall-warts. Can’t wait until she gets to that part of the series!
| 38
| 37
|
[
{
"comment_id": "203769",
"author": "Jim",
"timestamp": "2010-10-27T20:21:46",
"content": "So my first job involved switching DC/DC converter design, in fact, that’s all I did. It’s really not hard, but it can be quite difficult to do without a proper PCB and a good layout. The easiest thing to do if you are just hacking something together is to use a slow loop (usually just hang a big capacitor to ground off the compensation pin) and a whole lot of output capacitors in parallel.As to offline converters… man, you’re really asking for trouble to do that without a transformer. If you’re paying attention it is not particularly more dangerous than any other electronics, but if you are not careful you don’t have the transformer there to help protect you from lethal line voltages. Especially for our brothers across the pond who have 240 VAC power, you can really have a bad day working on that stuff. Be careful!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203773",
"author": "Jim",
"timestamp": "2010-10-27T20:39:58",
"content": "There’s a really great tutorial on Switching-Mode Power Supply Design over athttp://www.smpstech.com/tutorial/t02top.htm",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203778",
"author": "Noodle",
"timestamp": "2010-10-27T20:57:57",
"content": "Aw, this is a really nice intro to this sort of thing. I did this sort of thing in my undergraduate labs but don’t remember much of it. Makes sense when it’s shown like this. Good job! More basics!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203782",
"author": "George Johnson",
"timestamp": "2010-10-27T21:03:35",
"content": "Wall WART, not wOrt. Wort is basically “pre-beer”. Warts are the nasty little things that grow on your body, similar to the nasty little things that stick out of your wall.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203784",
"author": "andar_b",
"timestamp": "2010-10-27T21:04:54",
"content": "Just because I’m a nerd, wouldn’t that be “wall-warts”?Since the actual skin condition is a wart, not a wort, it seems to me that they’re called “wall-warts” as an allusion.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203785",
"author": "grenadier",
"timestamp": "2010-10-27T21:05:45",
"content": "He forgot to mention the variac!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203794",
"author": "Colecago",
"timestamp": "2010-10-27T21:23:48",
"content": "@JimAgreed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203812",
"author": "sexiewasd",
"timestamp": "2010-10-27T22:03:50",
"content": "I would love to see a tutorial on 5v and 3.3v power supplies for automotive conditions.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203814",
"author": "Owen",
"timestamp": "2010-10-27T22:11:57",
"content": "Recently I needed to add a 5V PSU to a kiln controller I was building and found that the easiest and cheapest option was to buy a very tiny and low priced mains to USB switched mode supply from China off eBay – it was under £4 including postage.It was very easy to take apart and even smaller without the case, maybe 1×2 Inches max and the circuit is very robust and able to supply 1A, more than enough for my purposes.I’d definitely recommended it as a way to go if you’re in a rush.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203818",
"author": "Dave",
"timestamp": "2010-10-27T22:23:15",
"content": "Since when does a switching power supply not use a transformer?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203822",
"author": "signal7",
"timestamp": "2010-10-27T22:28:26",
"content": "This is old technology for sure. Today, the only reason to use a wall-wart in consumer electronics is if it’s cheaper than the switch-mode counterpart. Even then, you have to account for the difference in cost to rectify the output, regulate it to a known voltage, and provide short circuit protection.If that’s not enough, today’s chip manufacturers are working hard to cram every part of a switch mode power supply into a single package so you don’t even have to know *anything at all* about power supply design. You can’t compete on a cost basis with progress, imho. Today’s solutions are quickly making wall warts look like a vacuum tube in terms of technology…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203826",
"author": "Alex the magical",
"timestamp": "2010-10-27T22:45:03",
"content": "I have neat transformer learning trick.1) hook household electric cords to the high and low side of the transformer.2) plug them both in at the same time.3) Double rainbow!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203852",
"author": "cgmark",
"timestamp": "2010-10-27T23:45:40",
"content": "I still prefer transformer based supplies over SMP for prototyping. When you are building circuits one of the features of a transformer based supply is the isolation it provides.I was working on a simple project that lit up LED. I used a power adapter from an old router , the adapter is a switching adapter. Output is rated 12VDC @ 2A, made by 2wire. I connected the positive lead of the led to a resistor on the breadboard and then attached another wire for the negative to the LED and before I connected it to the breadboard , I noticed the LED was already glowing. So the LED was attached to the + side of this wall adapter and me touching the other side of the LED was lighting it up. Only one explanation. I was the ground ! Placing my foot on the floor made the LED glow brighter.I pulled out the meter and measured the current between my hand and the led, 8-10ma. Not enough to kill under most situations but I really don’t like being the path for current in my projects :)Now most switching adpaters are better designed than this and do attempt to isolate the mains from the output but clearly this one does not do it well . I’ll stick with transformer designs for hobby work just to be safe.For audio supplies transformers are nice too. Since products have started to move more to switching designs I have noticed the complaints of ground loops have really increased. All these separate devices linking grounds with no isolation really can become a problem if they are designed like the adapter I encountered.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203863",
"author": "MRE",
"timestamp": "2010-10-28T00:19:58",
"content": "I once had a switch mode emiting 6 inch purple sparks out the assend of the power cord inlet on a machine which moved a lot of water.Sparks were grounding out on some conduit and plumbing.Yeah, they are small and cheap, but no safer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203915",
"author": "cde",
"timestamp": "2010-10-28T02:13:19",
"content": "@ Dave, they either use a 4 diode wave rectifier, then switch it down to the needed voltage, or they use a transformer and then a switching regulator.I think they meant to say that it doesn’t just use a transformer as the major piece.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203921",
"author": "Jimbo",
"timestamp": "2010-10-28T02:31:45",
"content": "Hmmm, if you are using or designing a mains to DC switch mode power supply chances are there will be an isolating transformer (especially if the PSU is to be approved for use in most developed countries) as an integral part of the design – most likely a flyback or push-pull type PSU with an opto-isolated feedback. The difference here that you can make such transformers much smaller than their wall-wart ancestors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203924",
"author": "Meseta",
"timestamp": "2010-10-28T02:43:40",
"content": "I’ve designed and built a regulated 3-phase AC to DC converter (in reality, a DC/DC converter and a diode bridge rectifier) for a 7kW wind turbine system as part of my final year project as an engineering undergrad, and as quite a few posters above have said, switch-mode power supplies aren’t that difficult to understand and build.Switch mode converters that don’t use transformers are likely to rectify the mains AC using a diode bridge first, and then use a DC/DC converter to obtain the required voltage.DC/DC converters either use inductors or capacitors to do the task. A layman’s description of of how they accomplish the task is that they basically rely on being able to store up energy in either the inductor or the capacitor, and then by controlling the rate at which the devices can charge up/discharge using transistors, it is then possible to control the output voltage of the circuit.The down-side of DC/DC converters is that the size of the inductor/capacitors are a function of the current output and switching speeds, which is why you’ll only see consumer-grade transformer-less DC/DC converters for small things like cell phone chargers, or where it is important to regulate the output voltage (like in computer PSUs, although PSUs still use a transformer to get the voltage into the right range, and then a DC/DC converters to regulate the output)I used a SEPIC topology in my wind turbine circuits since I needed full regulated 300V DC out from a variable 180V to 500V 3-phase turbine. However because of the current ratings, my inductors needed to be massive, they ended up being about 3 or 4kg",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204031",
"author": "Max",
"timestamp": "2010-10-28T06:51:30",
"content": "I’m not arguing how well switching mode mains supplies CAN be designed – I’d like to know how safely they usually are. Since pretty much everything uses these for a supply I get a small shock every time I disconnect any A/V equipment (TV/PC/HiFi/VCR, from the same power-strip) at home from any other, if I don’t remember to let go of either the cable plug or the chassis before the two grounds disconnect. Actually, you can steadily measure half the AC line voltage between any two chassis – but it’s only a small current, not a “short” if you shunt it, that gets uneventfully channeled somewhere when the grounds are connected; still, it’s quite enough to give you a buzz when they are not (and to visibly spark on connecting). And no, in my experience this “feature” is not exclusive to my place. So you will graciously excuse me for not liking switching mode mains supplies vs. transformers much at all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204045",
"author": "Tim",
"timestamp": "2010-10-28T08:25:24",
"content": "My only problem with this tutorial, is that is doesn’t seem to differentiate between a standard full-wave and a bridge rectifier power supply. Given they are both full-wave, a bridge (with 4 diodes) gives a higher voltage output (and a more efficient output), than a standard full-wave (2 diode) circuit.In the overall scheme of things, this is probably not the significant, but in some applications, this is highly critical.Was a good review none the less.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204057",
"author": "strider_mt2k",
"timestamp": "2010-10-28T09:01:35",
"content": "Awesome article, great commentary.Classic HAD.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204113",
"author": "MSEE_Madhouse",
"timestamp": "2010-10-28T11:13:23",
"content": "@MaxIt sounds as if you have an electricalwiring issue that should be looked into.What you’re describing is NOT normal !!The most obvious thing to check is thegrounding conductors at your main panel.Since if you’re getting zapped the wayyou describe, that tells me the electricground is not properly connected (eitherin the outlets, or at the meter/panel).Accident waiting to happen. You needto address it before someone in your homegets killed from it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204120",
"author": "Peter",
"timestamp": "2010-10-28T11:28:01",
"content": "Linear Technology (www.linear.com) has some great switch-mode converter chips *and* a free full-featured PSPICE simulator (LTSpice), which comes with a bunch of reference designs and runs fine under WINE on Linux. (Can you tell I’m a happy user?)But seriously, Digikey sells their stuff, you can get demo boards for most of their regulators and it’s a great way to get over your fear of switching regulator design.Regarding line supplies for hacking projects, I, too, favor recycling switching supplies from consumer products. We have a big box of adapters here at work — leftovers from who knows what bygone devices — and we routinely recycle them to power other projects. They almost all have voltage and current ratings on the label, and you can often open them up and slightly tweak the output voltage by changing a resistor divider. If you screw up and it incinerates itself, hey, you didn’t pay anything for it!Switching supplies are also way more efficient than linear regulators (the dependable LM7805) for large voltage drops, and can be designed to accommodate a range of input voltages.Regarding Variacs (or more properly, autotransformers) – they’re seductive, but be aware that the output is *not* isolated from the input, and as with all line powered circuits, you need to approach them with respect. A GFI extension cord between the wall and the input to the Variac would not be a bad idea, and may in fact save your life.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204125",
"author": "Einomies",
"timestamp": "2010-10-28T11:44:26",
"content": "@cgmark“I pulled out the meter and measured the current between my hand and the led, 8-10ma. Not enough to kill under most situations but I really don’t like being the path for current in my projects :)”Your power supply must have be leaking AC because per your description, “touching the floor made it brighter”, you didn’t have a galvanic connection to the ground but a capacitive coupling.And there’s the niggle. I don’t believe your story one bit.10 mA AC through the fingers is extremely painful. It feels like hitting a steel pipe against something so hard that your fingers sting.I know that because I’ve subjected myself to it several times. The pain treshold for most people is around 2 mA.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204159",
"author": "Jesper",
"timestamp": "2010-10-28T13:18:53",
"content": "This is the time to point and laugh.I’m a long time lurker and i just recently got a bit more involved with electronics, and this tutorial really made me want to do something about some of the stuff i got laying around. I’ve got a 22″ monitor with the adapter blown up and a laptop with the same problem. I’ve got the labels with the required voltages / currents for the hardware, but here’s question:If I wanted to make an adapter with these specs:input 100-240VAC 1.5Aoutput DC12V 4.2AThe only thing I would have to do is to get a transformer to drop the voltage to the 12V, then get a rectifier (4diodes) and then make sure all components are rated for minimum 4.2 A?Thanks in advance, and I’m sorry for the bad english, I’m danish if you were wondering.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204195",
"author": "Meseta",
"timestamp": "2010-10-28T15:26:21",
"content": "@Jesper, yes, that will work, but you’ll find it difficult to get a stable 12V DC output without a really big capacitor.Connecting up a transformer, say a 1:13 transformer, will get your 110V AC down to 8.5V ACHOWEVER, this is where you have to be careful, because usually an AC voltage is quoted in RMS voltage rather than peak voltage. What his means is that a US mains 110V line is actually an AC waveform with a peak voltage of about +/- 155V. (The 110V figure corresponds to the equivalent DC voltage in terms of amount of power delivered to a resistive load, i.e. 110Vrms AC will give you the same heating effect if you passed it through a resistor as 110V DC, even though the peaks of the AC are higher than 110Vrms)What this means is that after rectification, your rectified 8.5V AC output is actually going to be more like a rectified sine wave with peak of 12V (8.5 * sqrt(2) ~= 12). See:http://en.wikipedia.org/wiki/AC_to_DC_conversion#Full-wave_rectificationPutting a large capacitor across the outputs will smooth out the peaks so that it’ll look more like DC. But at your current rating of 4.2A, you’re going to need a pretty massive capacitor to do this. What you’ll find is that your output will be about 12V when you have nothing connected to it, but as soon as you start drawing 4.2A, your supply voltage will suddenly pick up a large 120Hz ripple of several volts depending on your capacitor size.So if whatever you are powering is OK with that kind of ripple, then you’re good to go. If not, then you’d want to use a more complex circuit.I would recommend against powering a monitor or laptop with this circuit, the standard power supplies have built-in switch-mode regulators to provide a steady 12V DC. A transformer and bridge rectifier is a fairly crude approximation to this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204202",
"author": "Jim",
"timestamp": "2010-10-28T15:35:57",
"content": "@Jesper:If you did what you are talking about it would somewhat work, in that at some load current you would get 12 V. You could make that be 12V/4.2A but that would mean that at 0A the output voltage would be higher.The nice way to do this is with a switching regulator, and that’s [most likely] what was in the broken adapter. It’s more efficient and cooler. And the easy [non-HaD] way is to just buy one, you should be able to find something compatible with your requirements (say, 12V/5A) off Digikey or similar for $20-30.But you wouldn’t learn much that way. So the easiest way to learn something is to start with a linear regulated output. You start with a transformer, then a diode bridge and a properly rated capacitor. Remember that 120 VAC is the RMS voltage, the peak AC voltage is 1.4x higher. Then follow that up with a linear regulator attached to a big heat sink. The way I’m looking at this your heat sink has to dissipate 20 W.Once you have that working you can start looking at DCDC converters to replace the linear regulator (or even more if you get ambitious). But if you only “just recently got a bit more involved with electronics” that would be a big leap. In that case consider the National “Simple Switcher” line of parts, preferably one at a low frequency (~40 kHz) which means a big fatty inductor but typically easier loop design. As I wrote, switchers are easy if you are careful and have a half a clue what you are doing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204203",
"author": "George Johnson",
"timestamp": "2010-10-28T15:36:54",
"content": "You guys talking about switchers with no isolation are either crazy or are buying junk.Switchers (good ones) provide PLENTY of isolation via optical isolation and transformers.Only a fool would use a line operated switcher without any form of isolation. Just dumb.I’ve never seen a design that does NOT use some form of isolation. Not that it’s not out there, just *I* have not seen it. It’s VERY common to use optical isolation in the feed back circuit. And obviously, the transformer on the power side of things.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204206",
"author": "Jim",
"timestamp": "2010-10-28T15:46:46",
"content": "@Tim: A bridge rectifier and a full-wave rectifier are the same thing. A half-wave rectifier only uses two diodes. In any event, both achieve the same maximum output voltage.The difference between the two (aside from that there are two more diodes in a bridge) is that the negative part of the cycle is rectified in a bridge. In a half-wave rectifier, the negative part of the cycle is just cut off – it’s gone, and you don’t conduct any current during that period (half of the cycle). Which means that your capacitor hooked up to the output of the rectifier needs to be twice as beefy (well, a little more but we don’t need calculus to understand the basics).This is why you saw a different output voltage. If you use a multimeter to measure a half-wave and a full-wave rectifier under load with the same output capacitor, the RMS output (which is much like an average for something close to a DC signal) will be lower for the half-wave rectifier. However, if you put a big enough capacitor there, or pull no load, the voltages should measure out the same.Of course, if you have a scope to look at the output you’ll really understand. To explain that would take either understanding of how diodes work or a half-assed picture, which google will have for you if you really want to know. And that is the limit of my free explanations today. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204217",
"author": "Mike Szczys",
"timestamp": "2010-10-28T15:57:05",
"content": "Boy, that’s kind of embarrassing. I’m going to claim that I have an affinity to type the word ‘wort’ because ofone of the local radio stationsis WORT.Fixed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204227",
"author": "cgmark",
"timestamp": "2010-10-28T16:31:43",
"content": "@EinomiesOf course the supply is leaking AC, it is connected to the mains. The only way I could be providing a path back to the circuit is through the ground of my workspace which is a poured concrete foundation, very good ground connection. As for how much current hurts there is no universal amount. It was 8-10ma as measured by a fluke ammeter.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "910079",
"author": "sa_penguin",
"timestamp": "2012-12-27T02:28:49",
"content": "cgmark, the steel rebar in your foundations make an good earth. The concrete? Not so much.How much current hurts? That depends on the frequency – if your switch mode is running at about 50KHz you get a “skin effect” where the electric current is in your skin – and hard to sense. Lower frequencies [like mains 50 / 60Hz] 10mA can hurt somewhat more.So I conclude your switching supply was poorly filtering the AC component: that is what coupled through your body to light the LED. Good Fluke ammeters will measure AC currents at high frequencies, you need to remember to measure frequency as well.",
"parent_id": "204227",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "204230",
"author": "cgmark",
"timestamp": "2010-10-28T16:35:02",
"content": "@George JohnsonThere are thousands of switching supplies that do not use isolation. It is cheaper to produce them that way. The manufacturers get away with it the same way they used to allow power supplies to be directly connected to the AC and just rectify straight into DC with not isolation. As long as the finished product doesn’t expose the power connection to a point the consumer will likely contact then it passes safety rules. Many tv were made this way years ago where the outer shell was plastic, but contact an interior part and you could get shocked.I had a friend that thought it cool to add a headphone jack to the tv. It shocked him pretty bad when he went to plug in the headphones. The internal speaker was NOT isolated from mains.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204281",
"author": "Peter",
"timestamp": "2010-10-28T18:38:57",
"content": "@Jesper: A 12V transformer and a full wave bridge will output “around” 17V with no load, dropping lower as you add load. That’s because the 12V is an RMS value, as others have mentioned, and the peak output (under minimum load) will be closer to 1.4 times that.If you’re not too concerned about output voltage — powering motors or charging batteries, for example, that might be OK for you. If you want to power something like a radio or computer, however, you’ll want to regulate that 12V @ 4.2A a bit more precisely.You could use an NPN power transistor with a voltage feeback circuit and keep the base of the transistor at 12.6V (0.6 above the emitter) and get pretty good regulation, but understand that the difference between the voltage on the collector of the transistor and that on the emitter, multiplied by 4.2A will be a fairly large number of watts, which will need to be dissipated through a heat sink. To say the least, it’s not a very “green” design.That’s why people choose switching regulators. By controlling the duty cycle of the switcher, many small, variable bursts of energy are passed to the filtering circuit, and you get a more precise control of the output voltage without dissipating as much power. The voltage measured at the output controls the width of the pulses and thus the amount of energy transferred during each switching cycle. It’s a more complex design, but it’s a more efficient way to regulate voltage at high powers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204349",
"author": "macw",
"timestamp": "2010-10-28T21:48:38",
"content": "@Jesper: an old ATX power supply for a computer, while relatively large and ugly, is a great high-current switched-mode supply. I use one as my benchtop power supply, and it outputs perfectly stable 12v, 5v and 3.3v at more than 30 amps per line. Well, the actual values are more like 12.03v, 5.08v, 3.34v, but that’s still +/- a few percent and completely stable under load.So you could get one of those for a few dollars (mine came from Goodwill for $6) and use it as a supply for nearly anything electronic in your house.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204399",
"author": "Myke",
"timestamp": "2010-10-29T01:21:55",
"content": "Awful tutorial IMO. She didn’t even mention the voltages or anything about current and diodes.All she talks about is huge ass capacitors, but doesn’t tell that those mean huge current peaks on the rectifier diodes. Awful.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204517",
"author": "Gert",
"timestamp": "2010-10-29T09:18:54",
"content": "Nice, this reminds me.At my school we did some current tests on some wires and we found that flexible cable could transport more current with less heat build up/problems.Can anyone explain this to me.The used voltage was 230V 50Hz.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204723",
"author": "willy",
"timestamp": "2010-10-29T16:47:49",
"content": "in my electronics class we just went over this (somewhat) we use a AC – AC converter (120v- 1to17v (our crappy transformers range in output some people got 17v some got 1v) then we use a full wave rectifier (4 diodes) to convert it to raw DC. Its really interesting how it works, its also nice to have an oscilloscope to see the output on a full (or half) wave rectifier.Kinda off topic but would this:http://gizmodo.com/5252774/diy-pocket+sized-oscilloscope-kit-for-33be able to handle AC 120v 50Hz? (I would assume it would be able to handle the frequency but what about the voltage?Thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205384",
"author": "Hitek146",
"timestamp": "2010-10-30T20:42:00",
"content": "^The specifications listed in your link state 5 Volts per Division, and looking at the photo, I see six divisions, so 6 times 5 = 30 Volts Peak to Peak. Also, if you look closely at the second photo, you can just make out the 30 Volts Max label next to the input. :) Connect to this input a standard 10x scope probe, and you should be able to measure a signal up to the 300 Volt range…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.859155
|
||
https://hackaday.com/2010/10/27/halloween-props-borg-costume/
|
Halloween Props: Borg Costume
|
Mike Szczys
|
[
"home hacks"
] |
[
"borg",
"costume",
"Halloween props",
"star trek"
] |
The Halloween hacks are rolling in late this year, but we’re delighted to see that [DJ Sures] finished
his borg costume
in time. It is made up of a hodge-podge of items from different cultures… oh wait, so are the borg. These include a set of hockey pads spray painted black with just a light misting of silver to give them some depth. After taking the image above (which mostly shows off his makeup) [DJ Sures] added an LCD screen to the chest plate and lighted electronics throughout. See for yourself after the break.
If you liked this you might take a look at his
singing spark plug
.
[youtube=http://www.youtube.com/watch?v=exbADVDdfKw]
| 17
| 17
|
[
{
"comment_id": "203753",
"author": "space",
"timestamp": "2010-10-27T19:23:19",
"content": "Will it assimilate?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203759",
"author": "Ryan",
"timestamp": "2010-10-27T19:46:07",
"content": "Very cool costume. He will definitely stand out on halloween.Anyone else think its weird that he has a mannequin though?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203770",
"author": "NatureTM",
"timestamp": "2010-10-27T20:28:20",
"content": "LOL @ the Borg holding a camera. He must be a true Star Trek fan since he doesn’t have a friend to take the picture for him!Just kidding! I love Star Trek and that’s an awesome costume. It’s just love nerd jokes too, but usually I’m the nerdiest person in the room so I have to direct them at myself. Rare opportunity.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203771",
"author": "guess",
"timestamp": "2010-10-27T20:31:09",
"content": "Will it blend?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203781",
"author": "Chris",
"timestamp": "2010-10-27T21:02:05",
"content": "Anyone who actually calls themselves “DJ _____” is a raging douchebag.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203792",
"author": "DJ Sures",
"timestamp": "2010-10-27T21:17:51",
"content": "Hey thanx everyone! Minus the guy who called me a douchebag hahaha. A little research and you’d find out that’s my actual name. ;)Anyway, if anyone wants more technical information regarding the suit, you can find it here:http://www.dj-sures.com/Blog/2010-10-25+Calgary+Borg+Halloween+Costume",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203858",
"author": "ferdi",
"timestamp": "2010-10-28T00:00:56",
"content": "need you get a shot to sty a lifing dead solder or is that not neded for this sute smile",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203926",
"author": "Spork",
"timestamp": "2010-10-28T02:47:22",
"content": "Things I think are cool/well done:Use of hockey pads.Electronics.Wires/tubing.Lights.Things that could use work:-Jacket underneath is a similar color, but does not exactly match making an odd pair.-You’re and your are different words.One last thing. THANK YOU so very much for the link to the non-instructables site. That is awesome.@ChrisNow you look like the douchebag. Hope you’re happy.@ferdiUm what?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203945",
"author": "m1ndtr1p",
"timestamp": "2010-10-28T03:39:46",
"content": "@ferdiUhh, what?Mind translating that to English for us?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203948",
"author": "Life2Death",
"timestamp": "2010-10-28T03:42:40",
"content": "the display is out of place. bleh.Use rope light instead?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204023",
"author": "ChalkBored",
"timestamp": "2010-10-28T05:53:34",
"content": "I agree with the display being out of place.To nerd it up a bit:Since Borg communicate telepathically, there’sno need for them to diplay information to eachother using a screen. If they wanted someone else toThe excess of blue LED’s bugs me more, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204024",
"author": "ChalkBored",
"timestamp": "2010-10-28T05:58:09",
"content": "…If they wanted someone else who wasn’t Borg to see something, they’d just assimilate them.I hit tab to indent and posted prematurely.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204059",
"author": "strider_mt2k",
"timestamp": "2010-10-28T09:05:51",
"content": "I think it’s pretty damn neat!Great use of items for lots of cool detail, and cool functional bits as well.You have added their distinctiveness to your own.props",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204158",
"author": "Hacksaw",
"timestamp": "2010-10-28T13:18:32",
"content": "I was going to comment about the DJ thing also but my comment was “I hope his name is David Jo or Dennis John or something that starts with a D and a J”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204167",
"author": "M4CGYV3R",
"timestamp": "2010-10-28T13:58:45",
"content": "From his About page, for those that can actually read:“no I’m not a DJ… It’s actually my name, so I get that confusion a lot.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204189",
"author": "walt",
"timestamp": "2010-10-28T14:55:45",
"content": "F U instructables!Thanks dj-sures :)http://www.dj-sures.com/Blog/2010-10-25+Calgary+Borg+Halloween+Costume",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204627",
"author": "D.J.'s Mom",
"timestamp": "2010-10-29T13:23:33",
"content": "Such talent!! I am proud of all your accomplishments and the creations that come from that never ending imagination of yours!! I have been amazed by you everyday of your life!!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.915206
|
||
https://hackaday.com/2010/10/26/tanks-treads-for-your-next-robot/
|
Tanks Treads For Your Next Robot
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"bicycle",
"bike",
"chain",
"tank",
"tread"
] |
If you ever wanted to incorporate tank treads into one of your build
you should check out this guide
. The method shown above is our favorite, which uses rubber fuel line hose and #10 machine bolts to hold together two lengths of hollow-pin roller chain. You can see the drive sprocket is keyed into the outer length of chain but the wheels that distribute the vehicle’s weight rest on the rubber tubing. You’ll also find details on building hinged track, molded track, plastic conveyor track, treadmill track, and bicycle chain construction. This should cut down on development time when you finally get around to making that
paintball tank
.
[Thanks BoKu]
| 16
| 16
|
[
{
"comment_id": "203160",
"author": "Giorgos Lazaridis",
"timestamp": "2010-10-26T16:26:05",
"content": "Awesome idea! I feel that i will use this idea myself",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203165",
"author": "Life2Death",
"timestamp": "2010-10-26T16:37:34",
"content": "About a year ago we wanted an offroad robot but couldnt find a decent supplier of tracks. One place suggested splitting a used snowmobile track in half and using that…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203179",
"author": "bilbao bob",
"timestamp": "2010-10-26T17:09:07",
"content": "Word to the wise: Do not run metal or hybrid tank treads indoors on tile, wood, vinyl or carpeted floors, especially if your robot weighs more than 10 kg or so.Some people get very angry when you exceed the thermal carrying capability of the material due to friction, or accidentally create scuttle marks on a lovely wood floor. Parents have been known to get very angry about this.“Hey, mom, look at this!”“Behold, my robot can bring in tea and cookies for us from the kitchen!”Click-click-Bump-bump-bump-brrrrrrrrrrrrrrr.“Oh, look at that. You are clev… Oh!”“My floor! Stop! Look what you did, Bob!”Let’s just say that demo didn’t go over well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203219",
"author": "techyguru",
"timestamp": "2010-10-26T18:18:02",
"content": "Why must you tempt me.Oh the possibilities, perhaps an RC snowblower with tank treads.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203231",
"author": "Cynyr",
"timestamp": "2010-10-26T18:41:34",
"content": "I can’t help but think that unless this tank is very heavy it won’t have much traction. Other than that awesome build.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203238",
"author": "Eirinn",
"timestamp": "2010-10-26T19:00:05",
"content": "@Cynyr i think those tank belts themselves will weight enough to enable some serious traction XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203245",
"author": "M4CGYV3R",
"timestamp": "2010-10-26T19:14:17",
"content": "That’s not a paintball tank…THIS is a paintball tank!http://preview.tippmann.com/forum/wwf77a/forum_posts.asp?TID=163191",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203288",
"author": "cde",
"timestamp": "2010-10-26T20:27:29",
"content": "@ M4cgyv3r, that’s not a tank either. That’s a dune buggy/overgrown go cart. When was your last eye exam?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203314",
"author": "Hirudinea",
"timestamp": "2010-10-26T21:07:10",
"content": "Some great ideas, wonder if they can be scaled up easly, winters comming and I am not paying for snow tires!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203326",
"author": "notmyfault2000",
"timestamp": "2010-10-26T21:17:17",
"content": "For those worried about the chain scratching up floors, maybe you can stretch some kind of rubberband around the chain part (or if you get a wide enough one, maybe even the whole tread)?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203375",
"author": "strider_mt2k",
"timestamp": "2010-10-26T23:52:07",
"content": "Sooo many nuts…nylock or no.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203410",
"author": "voxadam",
"timestamp": "2010-10-27T02:21:18",
"content": "In the past I’ve used Kevlar belted poly chain belts turned inside out. They produce pretty good traction and they don’t scratch floors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203457",
"author": "Tom",
"timestamp": "2010-10-27T04:08:33",
"content": "#10 bolt, that is a screw with a 10mm hex head?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203589",
"author": "strider_mt2k",
"timestamp": "2010-10-27T08:33:23",
"content": "@Tom:I was going to try to explain myself but I may butcher it so I linked this .pdf file.http://engineering.ucdavis.edu/efl/THREADS.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204629",
"author": "not msdn",
"timestamp": "2010-10-29T13:27:38",
"content": "planning on building some larger / higher treads for my spy video trakr and writing NMEA libraries for it so a usb GPS or cell phone can be connected… These treads look like a good solution for outdoor roaming. The stock ones are a bit slow on grass because of how low it sits. I will send it in when complete of course.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4617015",
"author": "Gregory Hurt",
"timestamp": "2018-06-07T13:09:04",
"content": "I am trying to use a NEMA auto helm to program in a waypoint for my robot then let the sensors figure out what to miss on the way there. Are you interested in this?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,347.970759
|
||
https://hackaday.com/2010/10/26/ethernet-connection-using-capacitive-coupling/
|
Ethernet Connection Using Capacitive Coupling
|
Mike Szczys
|
[
"Misc Hacks"
] |
[
"capacitive",
"ethernet",
"magnetics",
"network",
"switch"
] |
Wanting to save space and weight on his project build [Florin] set out to find a way to
add Ethernet connectivity without the magnetics
. His ill-advised first try involved directly coupling two switches, frying both in the process. After some research he found that Ethernet hardware manufacturers have considered the need for devices without the magnetics and there are several application notes available on the subject. [Florin] followed the information that Realtek has for their devices and learned that they can be couple capacitively. After depopulating the magnetics from a second pair of switches he wired up some resistor-capacitor networks on a breadboard and got the connecting to work.
| 26
| 26
|
[
{
"comment_id": "203141",
"author": "andrew",
"timestamp": "2010-10-26T15:21:54",
"content": "It would be nice to include a line or two about how or why ethernet connections require magnets; I had no idea they did.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203142",
"author": "Scott",
"timestamp": "2010-10-26T15:33:38",
"content": "Neither did I, it seems a little-known company “Intel” did a paper on this back in 2002 though. ;)http://www.kip.uni-heidelberg.de/DCS-Board/datasheets/ethernet/MagneticlessEth.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203143",
"author": "Ian Tester",
"timestamp": "2010-10-26T15:36:25",
"content": "By “magnetics”, I presume you mean transformers?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203145",
"author": "Sheldon",
"timestamp": "2010-10-26T15:42:02",
"content": "On a lot of ethernet resources on the web it does seem to refer to isolating/decoupling transformers used in the transmission line.Why they had to call them “magnetics”, I haven’t worked out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203148",
"author": "effigy",
"timestamp": "2010-10-26T15:54:10",
"content": "It probably has something to do with the fact that that’s what engineers everywhere call them…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203149",
"author": "DarkSim",
"timestamp": "2010-10-26T15:56:22",
"content": "Uh, what? Most transformers/power isolation units are basically magnets or some form of electromagnet to protect your equipment. That is why this guy fried his units the first time. The idea is, if you don’t have the protection on a certain line, if say you get a power problem (lets say, power surge) on one device, that tiny amount can affect other devices or ethernet ports itself. I had an issue where the power in my house went out. My computer was on a battery backup, but xbox 360 wasn’t. Xbox 360 ethernet adapter has never worked, but the rest of my devices still do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203150",
"author": "Matt",
"timestamp": "2010-10-26T15:59:40",
"content": "@Sheldon, “magnetics” is a pretty common blanket term for all components that make use of magnetic fields and magnetic materials. It’s often used because magnetics tend to be expensive, somewhat large, and require more considerations than, say, just popping down a .1F cap would.In a project before I’ve used an ethernet jack that had integrated magnetics. I wonder if it was actually capacitively coupled or if it just had really tiny isolation transformers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203151",
"author": "smoker_dave",
"timestamp": "2010-10-26T15:59:48",
"content": "I used an app note once too. Do you want me to write it up and send you the link?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203153",
"author": "dext0rb",
"timestamp": "2010-10-26T16:02:22",
"content": "Are you guys seriously questioning the term “magnetics”?You know how a transformer works, right? Optimus Prime and all that jazz…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203154",
"author": "dext0rb",
"timestamp": "2010-10-26T16:03:36",
"content": "smoker_dave,that’d be great. hopefully its an app note I’ve never read before – like this very one! looking forward to your submission.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203155",
"author": "bilbao bob",
"timestamp": "2010-10-26T16:03:52",
"content": "Optoisolators cost more than bits of metal at the time, and still do. I must say that I’m looking forward to 100GB ethernet devices. The future is basically awesome. Too bad politics can’t keep up.On a nostalgic note, old gear (like switches and hubs) 10MB AUI interfaces can be replaced with LEDs and photo-diodes [well, almost] and, when given even the most half-assed enclosures and optics, can work pretty reliably for about 300 meters.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203157",
"author": "Sheldon",
"timestamp": "2010-10-26T16:10:20",
"content": "@MattDespite being an electronic engineer for a good many years, I’ve never heard anyone refer to components that make use of electromagnetism as “magnetics” which is why I was questioning its origin. It’s incredibly broad and not at all useful in explaining what it actually is.Inductors, just like capacitors, come in many sizes and costs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203158",
"author": "nes",
"timestamp": "2010-10-26T16:11:55",
"content": "@bob Would you be referring to RONJA by any chance?http://en.wikipedia.org/wiki/RONJA",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203161",
"author": "Florin",
"timestamp": "2010-10-26T16:27:43",
"content": "@Matt Those RJ-45 connectors with integrated magnetics really have small transformers built into them. I’ve opened a couple and its there. Its a standard, don’t remember which one exactly.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203167",
"author": "smoker_dave",
"timestamp": "2010-10-26T16:40:19",
"content": "Please dig out the standard and type it up Florin.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203168",
"author": "catzberg",
"timestamp": "2010-10-26T16:43:24",
"content": "@SheldonI would aggree with the term ‘magnetics’ perhapse you are from a different part of the world than I, but for those of us in the Digikey spectrum, refer to the section “Jacks with Magnetics”http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=1442739",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203172",
"author": "Florin",
"timestamp": "2010-10-26T17:00:57",
"content": "@smoker_dave the standard is IEEE 802.3http://en.wikipedia.org/wiki/IEEE_802.3Its a “collection of IEEE standards defining the Physical Layer and Data Link Layer’s media access control (MAC) sublayer of wired Ethernet”The standard doesn’t refer to the transformer itself but for a network to meet that standard (and all vendors want that) you have to consider that the transformer has a large impact on the transmit template and the cable length performance which in turn have to meet the standard.You’ll find most transformers manufacturers have this paragraph in their datasheets: “Compliant With IEEE 802.3 and ANSI X3.236 Standard Including Baseline Wander Compensation Specification Of 350 H OCL When Biased at 8mA From O\u0001C to 70\u0001C”An RJ-45 jack with integrated magnetics will follow the same pattern and have those transformers in there to meet the IEEE standard.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203209",
"author": "Peter",
"timestamp": "2010-10-26T18:04:19",
"content": "Having designed several Ethernet interfaces in my career, I’ll chime in. I’ll assume we’re talking about BASE-T here, and not about classic coax EthernetThe good ones all use magnetics (sorry, Sheldon, that’s what they’re called in the network biz) and transient suppressors. The cheap ones don’t. You can tell the good interfaces from the cheap ones by how they behave after a near miss during a lightning storm.The magnetics are there to break ground loops and couple from an unbalanced source (like a 5V to gnd signal) to an unbalanced load (like a 120-ohm CAT5 twisted pair) and back again to the receiver. The fact that you’re putting a carefully engineered, balanced drive signal on the twisted pair goes a long way (literally) to keeping the error rate down and passing FCC emissions tests.You can’t use opto isolators for this because they’re not fast enough. Check the specs. If you go optical, you use lasers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203210",
"author": "Peter",
"timestamp": "2010-10-26T18:05:29",
"content": "“…to an unbalanced load”Ecch! That is, of course, a BALANCED load.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203267",
"author": "Jen",
"timestamp": "2010-10-26T19:54:36",
"content": "The reason this isn’t done for more than on-board connections is because capacitive coupling has a nasty habit of coupling all sorts of noise onto the line. In audio lines with a shared ground, there’s an equalization “pop” on connection as the capacitor draws current to reach the equilibrium state, but that’s not the worst of it.When you break the shared ground line and go differential, unlike a transformer, capacitors don’t protect you from common-mode noise. A shift in the ground potentials between the two ends will spike both ends of the differential pair – and while that won’t effect the differential receiver for small spikes, it’ll happily couple spikes large enough to cause damage.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203280",
"author": "Shadyman",
"timestamp": "2010-10-26T20:12:25",
"content": "@Ian TesterTransformers: Routers in disguise?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203438",
"author": "itwerx",
"timestamp": "2010-10-27T03:26:53",
"content": "Transformers’ natural resonance is a convenient bandpass filter and it also conveniently decouples the (variable) capacitance of the actual cabling. I.e. the circuit above is generally fine in the lab but will never work in the real world. Rest assured that a whole lot of really smart network engineers have been trying to get magnetics out of the equation for many years as they are the largest and most expensive component in more ways than one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203678",
"author": "Acme Fixer",
"timestamp": "2010-10-27T14:34:17",
"content": "You don’t need transformers to drive a line with a balanced signal. For years I maintained a bunch of line driver boxes that converted RS-232 to balanced line, and IIRC used a 75113 driver and NE529 receiver chip. I say ‘maintained’ because very time we had a power glitch or lightning storm, I had to replace a dozen of those chips. Other than that, they worked okay.The obvious solution to protecting these chips is to use a transformer, AKA magnetics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203704",
"author": "Jake",
"timestamp": "2010-10-27T16:35:38",
"content": "WTF, this person uses an app note and then gets a write-up like they actually did something?LOLLet’s see some creativity, people. This is not a ‘hack’!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203760",
"author": "cocoa",
"timestamp": "2010-10-27T19:48:03",
"content": "This would’ve been better hack if it’s published like 5 years ago. Now you can even get 48port unmanaged switches under 50$ so who cares.But before that I would be happy hacking “uplink” between those old 24 port planet switches which required an expensive extension model.Realtek suck anyways. That brand always did. Hack Cisco/3Com.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "600892",
"author": "JR",
"timestamp": "2012-03-12T02:18:05",
"content": "Can someone explain in simpler terms why ethernet jacks require “magnetics”?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.033624
|
||
https://hackaday.com/2010/10/26/pc-game-controller-with-a-touch-of-class/
|
PC Game Controller With A Touch Of Class
|
Jakob Griffith
|
[
"home entertainment hacks",
"Peripherals Hacks"
] |
[
"controller",
"game",
"keyboard",
"men of war",
"pc",
"pic",
"ps2"
] |
The above is a
specially designed game controller
made by [Giorgos] solely for the RTS game Men Of War (now that’s dedication to a game). [Giorgos] started off with a rough breadboard and 11 buttons. Slowly overtime he included a joystick, countdown timers, and the wonderfully lit case. Under the hood is a couple of PIC microcontrollers multiplexing the switches, LEDs, timers, and also interfacing with the computer via
how is it not dead yet
PS/2 port.
The build log
is a very detailed read and well worth it, even if you’re not planning on making a custom controller.
[Ben Heck]
better watch out, there is a new controller making enthusiast on the loose.
| 23
| 23
|
[
{
"comment_id": "203119",
"author": "Mr. Sandman",
"timestamp": "2010-10-26T14:26:07",
"content": "reminds me of a Belkin Nostros (or however its spelled)pretty neat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203120",
"author": "asdf-chan",
"timestamp": "2010-10-26T14:26:11",
"content": "Looks cool but your brain must be really skilled to handle 3 different tasks at once.Sort of want",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203123",
"author": "Ian",
"timestamp": "2010-10-26T14:33:13",
"content": "yeah, does look pretty cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203128",
"author": "Panikos",
"timestamp": "2010-10-26T14:47:00",
"content": "His name is Giorgos, Did the copy/paste skills fail you for a moment?Nice hack!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203129",
"author": "Panikos",
"timestamp": "2010-10-26T14:49:24",
"content": "And you featured him before…http://hackaday.com/2010/05/19/solder-station-hack-adds-temperature-control/the guy is awesome",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203138",
"author": "Giorgos Lazaridis",
"timestamp": "2010-10-26T15:17:38",
"content": "i use this soldering station still with great success. Frankly, i did not expect to be that stable and reliable. I do all my soldering jobs with it…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203140",
"author": "Giorgos Lazaridis",
"timestamp": "2010-10-26T15:21:51",
"content": "oh, and about these buttons… if anyone has any idea how to change colors…. i would appreciate the advice. I know this color sucks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203164",
"author": "Squirrel",
"timestamp": "2010-10-26T16:35:22",
"content": "@Giorgos LazaridisWell.. spraypaint followed by sealant does a good job of coloring without coloring your fingers after extended use. I’d look up custom controller painting to see what people who paint (i.e.) xbox controllers use to get good colors that lastAssuming that you’re talking about the beige keys, of course.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203178",
"author": "NsN",
"timestamp": "2010-10-26T17:06:04",
"content": "@Giorgos LazaridisGo fullout and make them of translucent material with an RGB LED beneath them.Then you can change the color to represent different modes / actions / modifiers",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203181",
"author": "mick",
"timestamp": "2010-10-26T17:12:14",
"content": "@Giorgos Lazaridis you can also use rit dye to dye the plastic. it also dosent were out and onto ur hands or have a sticky feeling",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203182",
"author": "Giorgos Lazaridis",
"timestamp": "2010-10-26T17:12:45",
"content": "@Squirrelyes im talking about the beige keys…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203183",
"author": "mick",
"timestamp": "2010-10-26T17:13:20",
"content": "*wear out, i meant wear out",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203189",
"author": "Giorgos Lazaridis",
"timestamp": "2010-10-26T17:18:53",
"content": "@mickwhat is “rit dye” :$",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203205",
"author": "Luke",
"timestamp": "2010-10-26T17:55:39",
"content": "There is something about the shape of it which makes one think that perhaps it could have been redesigned, it certainly does look like a “joystick.”http://pcbheaven.com/projectpages/Men_Of_War_Game_Console/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203220",
"author": "bobdole",
"timestamp": "2010-10-26T18:19:05",
"content": "About that “how is it not dead” PS/2 port, it’s a far, far, far superior interface for hooking up keyboards than USB.USB HID spec sets a limit of a maximum of 4 simultaneous keypresses. In a game, some times you need to duck, jump, and change weapons while walking forward. PS/2 can theoretically support holding down all 101 buttons at once.USB is polled by the CPU. It has a definite latency, and it consumes CPU cycles to poll it. PS/2 is completely hardware interrupt based. The CPU doesn’t have to waste its time asking the keyboard whether or not a key is pressed, the keyboard tells the computer when it has input in its buffer, not the other way around.There are very good reasons PS/2 isn’t dead. It’s much better at its job than USB.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203222",
"author": "Giorgos Lazaridis",
"timestamp": "2010-10-26T18:21:51",
"content": "@bobdolenot to mention the ease of software protocol implementation ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203247",
"author": "mick",
"timestamp": "2010-10-26T19:19:24",
"content": "@giorgosits a fabric dye. if you dont have it in your area im sure you could find something else. look into dyeing rc car parts with rit dye",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203251",
"author": "bob d",
"timestamp": "2010-10-26T19:25:39",
"content": "@Giorgos LazaridisVirtually all paint will flake off and look unplesant pretty quickly. I’ve had very good luck dying plastic with cheap Rit cloth dye. Put the keys in a pot of simmering water with the dye for 30-90 minutes and you’ll get a vibrant color that won’t come off easily.I still hate seeing blue lights on stuff like this. Yes, blue is the official color of “cool”. (And now apparently” classy” Ugh.) But blue light will constrict your pupils more than other wavelengths and will make your eyes less sensitive to dim lighting. This is bad for any gaming rig since you’re relying on your visual acuity. (And for other displays that you read in the dark.) Change the color to red and you won’t be ruining your night-adapted vision.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203284",
"author": "Giorgos Lazaridis",
"timestamp": "2010-10-26T20:23:07",
"content": "@bob dit is just a narrow 3mm strip near the bottom of the structure…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203309",
"author": "_Matt",
"timestamp": "2010-10-26T20:50:43",
"content": "@bobdoleCouldn’t figure out where you got your info on the 4 keys max, but I know my cheap usb keyboard can do up to 6 keys at once, all getting detected.Unfortunately, PS/2 isn’t plug and play, so I’d have to restart my keyboardless server next to me to get a PS/2 keyboard working.I’ve always wanted a custom keyboard setup for my different games, that’d be neat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203364",
"author": "bobdole",
"timestamp": "2010-10-26T23:10:43",
"content": "@_Matt:My bad, you’re right. The max is 6 keys.The HID buffer for keybords is 8 bytes, of which, one is a modifier flag, another is reserved. allowing a total of 6 scancodes.http://www.usb.org/developers/devclass_docs/HID1_11.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203645",
"author": "wouter",
"timestamp": "2010-10-27T11:41:10",
"content": "I’m so gonna make one for all fps i play :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203744",
"author": "blueeyesm",
"timestamp": "2010-10-27T18:49:50",
"content": "Why not just find a broken black keyboard and scam the keys off that?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.919343
|
||
https://hackaday.com/2010/10/25/rc-controlled-camera-takes-intimate-video-of-rodents/
|
RC Controlled Camera Takes Intimate Video Of Rodents
|
Mike Szczys
|
[
"Video Hacks"
] |
[
"AVR",
"radio controlled",
"rc",
"recorder",
"sd",
"video"
] |
[Leor] wanted to take some video of the wildlife in his yard, like this chipmunk or some hummingbirds, but every time he tried to get close it scared them away. His solution was to
rig up a cheap video recorder to be radio controlled
(PDF). The donor camera was a cheap SD card based eBay purchase that takes 720×480 video. [Leor] removed the SMD switches from the recorder’s PCB and wired up a 4066 quad bi-lateral switch IC in its place. An RC toy car donated the receiver transmitter pair. The receiver signals are monitored by an AVR microcontroller which translates the commands in a proper set of button presses for the video. What you get is a controller that and turn the camera on and set to the proper mode, and the ability to start and stop the recording.
We’ve got some pics of the hardware after the break, and [Leor] posted
a bit of the chipmunk video
for your enjoyment.
The component boards (click to enlarge):
Inside the enclosure:
Finished product:
| 27
| 27
|
[
{
"comment_id": "202801",
"author": "biozz",
"timestamp": "2010-10-25T22:59:21",
"content": "well cheaper than a telephoto lens i guess",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202807",
"author": "bioss",
"timestamp": "2010-10-25T23:14:05",
"content": "Well, if we always turned to nice, commercially built solutions like telephoto lenses then there wouldn’t be many hacks to post about, huh? In this right application this is better than a telephoto lens with consideration to space, line of sight, etc. I like it ’cause it the remote could easily be activated autonomously without a lot more work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202808",
"author": "Mikey",
"timestamp": "2010-10-25T23:16:11",
"content": "How come facebook hack-a-day comments don’t show up with the non-facebook comments? You guys should fix that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202817",
"author": "Dirwin",
"timestamp": "2010-10-25T23:35:23",
"content": "they shouldnt “fix” that , they should just hack it onto the web page with a drop bot or something, preferably using an arduino",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202824",
"author": "The Ideanator",
"timestamp": "2010-10-25T23:51:22",
"content": "“they should fix that” I like how you said that dude, as I’m sure you do realize that this is a hacking blog. Here, shit doesn’t get “fixed” it either gets hacked or kluged. I vote to “fix” the problem with arduinos, lasers, and duct tape.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202839",
"author": "lamikam",
"timestamp": "2010-10-26T00:32:55",
"content": "If anyone is interested, I will post the schematic and code detail later on. Send an email tonobody102@gmail.comThanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202840",
"author": "biozz",
"timestamp": "2010-10-26T00:34:39",
"content": "@biosssomeone has something up there ass just looking to bitch at somethingall i said is it was cheaper than a telephoto lens i never said it was any less useful n00b",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202841",
"author": "lamikam",
"timestamp": "2010-10-26T00:35:51",
"content": "Yea, I’m thinking my next mod to this is to hook-up a Lego NXT utrasonic sensor for motion detection to auto-record. Stay tuned!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202900",
"author": "Coligny",
"timestamp": "2010-10-26T04:00:21",
"content": "Exposed wiring for a rodent observation device…Somebody didn’t get the memo… or like to replace chewed wiring…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202903",
"author": "Trollicus",
"timestamp": "2010-10-26T04:11:16",
"content": "That rodent looks kinda smarmy to me, I think he’s up to somethin’ better watch him closely. What is he carrying in his pouches? Not just nuts I’ll wager!Behind that cute furry persona lies PURE EVIL!!!!Evil I say!! EEEEEEVIIIILLLLLL!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202931",
"author": "Derek X",
"timestamp": "2010-10-26T04:50:03",
"content": "Nice hack Mike, but next time please use a proper drill and bit for the holes in your projects, it looks much more professional that way.biozz, you’re playing the FOOL, you’re snark had ZERO germane content to Mike Szczys hack, just what IS YOUR problem, it’s not us on the forum, it definitely YOU buddy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202935",
"author": "Cindy Auligny",
"timestamp": "2010-10-26T04:54:24",
"content": "Great job. Beside keeping track of wildlife, you can do the same way to the other things, like a camera nears your doorbell, … lOl",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202958",
"author": "vonskippy",
"timestamp": "2010-10-26T06:34:21",
"content": "Nothing as exciting as sitting around watching the grass grow and hoping something walks, flies, jumps into view so you can justify all that wasted time by hitting the record button. Personally, I’d use a motion sensor and find something else to waste time on. Unless of course you’re tracking big foot, then camp on my fellow BFH, camp on (cause you can’t catch the big guy unless you’re willing to invest your very own time behind the shutter).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202959",
"author": "wangchong",
"timestamp": "2010-10-26T06:34:40",
"content": "would just like to point out RC = Radio controlled, so then why do you need another controlled in the title? Radio controlled controlled… o.0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203006",
"author": "Grovenstien",
"timestamp": "2010-10-26T08:12:39",
"content": "Stuff those pouches my little Chipmunk friend",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203028",
"author": "strider_mt2k",
"timestamp": "2010-10-26T09:06:32",
"content": "I absolutely love RC toys for RC circuits.I mean, how easy can you get?It’s all laid out for you , it’s just a matter of adaptation and there you go!I’ve avoided 27Mhz personally because it tends to be really noisy, but even 49Mhz can be sporadically noisy nowadays.I’m about to convert a radio Shack Zip-Zap car into a basic little generic relay-based RC system that I can graft onto various things to control them. Seeing stuff like this just keeps the fires lit.:)Really neat project!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203052",
"author": "flapjackboy",
"timestamp": "2010-10-26T11:21:36",
"content": "@wangchong:I know, it’s like PIN number, LCD display and ATM machine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203056",
"author": "ewan",
"timestamp": "2010-10-26T11:27:45",
"content": "cheap rc toys sometimes have nice re-usable transmitter/reciver chips.i recently did a project with a re-purposed rc car, it was built around a chipset that had its datasheet available online, reading the datasheet i found that it even had a spare unused channel.27 mhz seemed to be suprisingly reliable, even at sziget festival,(big music festival in budapest) which is probably home to more radio mics, walkie-talkies and fridges than any other place in europe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203075",
"author": "M4CGYV3R",
"timestamp": "2010-10-26T12:03:43",
"content": "Sup ‘munk! You’re all fuzzy and stuff…what’s with that? Looks like you got some nice seeds there, stuffin’ your mouth. Anyway, say ‘Hi’ to your mother for me, aight?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203117",
"author": "Shorin",
"timestamp": "2010-10-26T14:14:14",
"content": "from the title, i was worried that this was not safe for work…(didn’t watch the video yet)Please be more mindful of your titles please…?Either that or i need some internal datums santizationizing. ~",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203131",
"author": "Maneesh",
"timestamp": "2010-10-26T15:01:29",
"content": "Nice pci",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203134",
"author": "James",
"timestamp": "2010-10-26T15:08:52",
"content": "@flapjackboyI know, it’s almost as infuriating as “RPM’s”. Almost.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203135",
"author": "James",
"timestamp": "2010-10-26T15:10:04",
"content": "@Shorin – definitely says more about you than their title writing :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203336",
"author": "TomF",
"timestamp": "2010-10-26T21:43:40",
"content": "I am quite impressed by the quality of that cheap camera and I wonder, what brand and model that is. (yes I want one…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203387",
"author": "lamikam",
"timestamp": "2010-10-27T00:12:39",
"content": "Yea, I could not believe that it looks that good.That is the max resolution of 720×480. They have them on ebay:http://cgi.ebay.com/12MP-4x-Digital-Zoom-5-1-Mini-Video-Camera-Camcorder-DV-/150511503368?pt=Digital_Cameras&hash=item230b2f4808They all ship from Hong Kong, so it takes a while – 3 weeks, and check the shipping costs! They sell the cameras for $0.01, then charge you $26 shipping. Some sellers have lower shipping costs. They run on 6V/AAA, but I powered it with 5V, no problems.P.S. I do not have any affiliation with the selles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204992",
"author": "Everett",
"timestamp": "2010-10-30T04:13:26",
"content": "Intimate videos?? Sounds like voyeur critter porn to me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205550",
"author": "MB",
"timestamp": "2010-10-31T02:03:40",
"content": "“They sell the cameras for $0.01, then charge you $26 shipping”They do that cause is cheaper. What they have to pay is base on the price not on shipping. Learn the system, then beat it i guess",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.415727
|
||
https://hackaday.com/2010/10/25/gas-containment-for-laser-cutters/
|
Gas Containment For Laser Cutters
|
Mike Szczys
|
[
"Laser Hacks"
] |
[
"gases",
"jeri ellsworth",
"laser",
"silicone",
"vent",
"wafer"
] |
Tired of breathing all the noxious fumes your laser cutter puts out? Yeah… we don’t have a laser cutter either. But [Jeri Ellsworth] does and she needed a way to evacuate off-gases generated during cutting so that they don’t damage the laser cutter, or her lungs. What she came up with is
a containment box that attaches to a pump system
.
The problem is that you want to keep the gases away from the laser cutter hardware but you still need to be able to shoot the laser at your work material. Her clever solution is to use a silicone wafer like the ones with which she makes
integrated circuits
. They allow the infrared laser to pass through without being chopped in half. What you see in the image above is a red box with the round wafer in the center. Near the bottom of the image is a clear window so you can see what’s going on with your work piece. But to get the full idea you need to watch the video embedded after the break.
We can’t help but think she’s building this in preparation for some
more chemistry hacking
.
[youtube=http://www.youtube.com/watch?v=eGJ2WZRdUPA]
| 27
| 27
|
[
{
"comment_id": "202742",
"author": "Juan Cubillo",
"timestamp": "2010-10-25T21:07:48",
"content": "Cool trick using the silicon wafer… but… can’t you just stick a computer fan on one end of the cutter and an air opening at the other side of the “printing” area space? Run a small pipe into a nearby window and you’re done.PS… I don’t have a laser cutter :( lol",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202745",
"author": "Matt",
"timestamp": "2010-10-25T21:11:33",
"content": "Silicone is an odd material to make IC’s with. Silicon would be a great candidate though. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202747",
"author": "Sebastian",
"timestamp": "2010-10-25T21:13:48",
"content": "I want a laser cutter, too :Pbut a cool idea. I didnt know that wafers were transparent for IR.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202748",
"author": "macw",
"timestamp": "2010-10-25T21:16:27",
"content": "neat idea, especially for cutting things like PVC where the corrosive gases from cutting will actually destroy your steering lens. Not that useful for most other cuts unless you just really don’t like the smell of burning wood :PAlso, it’s “silicon”. Silicon is the mineral, silicone is the rubbery compound. Pet peeve of mine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202752",
"author": "macw",
"timestamp": "2010-10-25T21:21:15",
"content": "@juan cubillo: most of the commercial laser cutters you can buy already have a system like that — they have an air injector right at the focal point, and a powerful evacuation system in the whole cutting bed. That’s enough for most materials like acrylic or wood or cardboard, where the fumes aren’t too nasty. Other materials, like PVC, produce corrosive gases and can’t be safely cut even with a ventilation system. So a shield like this would be great.Also, you have to clean soot and gunk off your steering lens every so often no matter what you’re cutting, so this prevents that…but then you have to clean the silicon wafer, so it’s not much less work :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202753",
"author": "Bob",
"timestamp": "2010-10-25T21:23:09",
"content": "Why not build a box around the entire laser cutter with a vent? You could use acrylic or a thick plastic bag with a zipper if cost is a factor.The tin she uses can’t be good for leveling your material. Also, the silicone wafer could reduce the laser’s accuracy if it is dirty, or worse, it could cause stray IR light reflections that you may not be expecting. I personally would not put anything in the path of the laser that I don’t intend to absorb the energy.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202756",
"author": "Juan Cubillo",
"timestamp": "2010-10-25T21:24:07",
"content": "@macwThanks for clearing that up. I had no idea PVC had such nasty fumes from laser cutters. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202781",
"author": "Chris",
"timestamp": "2010-10-25T22:17:01",
"content": "I don’t have a laser cutter nor am I a laser expert. But shouldn’t the silicon window be either anti-reflection coated, or mounted at Brewster’s angle to avoid reflecting part of the beam?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202793",
"author": "WestfW",
"timestamp": "2010-10-25T22:38:50",
"content": "My god. A video that uses both “silicon” and “silicone” and does so correctly!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202858",
"author": "Krafter",
"timestamp": "2010-10-26T01:26:59",
"content": "To those wondering why Jeri doesn’t just vent the whole thing, in fact she does have a ventilation system for the laser cutter.The thing is some things you cut can damage, with fumes, the parts inside the cutter, like the lens that reflects the laser light down into the cut area. So this will prevent those fumes from getting into any spaces that might affect the cutter itself.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202861",
"author": "bilbao bob",
"timestamp": "2010-10-26T01:47:50",
"content": "Jeri,If you’re gonna play with recreating the history of solid state computing, stop mucking about with lasers (waaaaaaaayyy too crude), buy an old electron microscope and start fabbing something besides high capacitance FET mockups.I’m impressed that you’re a do-er and all, but come on – you’re getting older and it’s time to ratchet up your game.E-beams! Old Electron microscopes are frustrating and fun at the same time. Yes, you can (or could) buy old process equipment to make chips, but if you’re ready to shoot for the moon on a budget… well, up a little current and you can be rocking like it’s… well, 1969. Or maybe 1972. Your choice.You can get your HV excitement slice figuring out how to dope the wafers. You’ll want to hit up used book sellers and start digging mid to late 60s Electrochemical Society books. Seems to be up your alley, anyway. And if you can’t jump on the direct fab bandwagon, you can try your hand at lithography and masks.I can’t recommend old-ish electron microscopes enough. It’s hard core, and makes keeping cutting lasers in production look like child’s play. You get to learn all about motion control, precise beam focus and control, thermal issues (are you man enough… well, woman enough, anyway… to figure out how to create a 1 degree C controlled environment to keep the place thermally stable, and then deal with rotating magnetic fields…It’s equivalent to becoming a black-belt, and a lot of it is just discovery.Naturally, you won’t make the same mistake I did and fall off the wagon and into destructive cellular tomography. The first time you put your initials on a blood cell that survives the process, well… Let’s just say that Mary Godwin’s little romance novel has been a real source of inspiration for our little group. :)Of course, it isn’t anywhere as cool looking as a high voltage thumper; but to each his/her own.http://www.youtube.com/watch?v=bPmVhyHBRAM",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202869",
"author": "barry99705",
"timestamp": "2010-10-26T02:08:26",
"content": "You think pvc is nasty. You should try engraving a moose antler!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202880",
"author": "madsci",
"timestamp": "2010-10-26T02:46:59",
"content": "I was at swapfest (MIT flea market) last week and one guy was selling a 10W CO2 laser scavenged from medical equipment for only $175. I considered buying it to build a laser cutter but decided I don’t have enough time or room in my apartment. If anyone else is interested though, the guy’s email and phone number (Glenn) are on his website, 73Volts.com. He doesn’t know anything about the hardware, the laser doesn’t have a power supply and probably needs half a dozen other parts (he doesn’t know) but the price is right.Note that he’s in PA and shipping the beast doesn’t look cheap.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202896",
"author": "Michael Bradley",
"timestamp": "2010-10-26T03:50:24",
"content": "I tried once, now I have no more laser, sucker tore it to shreds :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202898",
"author": "wha?",
"timestamp": "2010-10-26T03:54:36",
"content": "And what happens when the stuff gets on the silicon? won’t it just burn?My cutter has a pressurized air stream (50 psi) coming out of the nozzle, and the whole thing is vented with suction.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202950",
"author": "WestfW",
"timestamp": "2010-10-26T05:55:33",
"content": "@bob: You’re obviously no enough of a Jeri Groupie:http://www.youtube.com/watch?v=hv9OFjzFnTshttp://www.flickr.com/photos/jeriellsworth/2842639036/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202971",
"author": "psuedonymous",
"timestamp": "2010-10-26T07:00:20",
"content": "@Michael BradleyYou’re supposed to remove it from the moose first. Similar issues occurs when engraving ivory.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202997",
"author": "pmac",
"timestamp": "2010-10-26T07:40:01",
"content": "no wonder she gets so much done, she works so fast!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203015",
"author": "Chris",
"timestamp": "2010-10-26T08:27:05",
"content": "@Bilbao Bob,You forgot regular diagnosis and repair of the electronics, which consists of huge modules containing probably 1,000 TTL and various other chips total. Guided by schematics in Japanese. Which must have originally been on A0 sized paper, but were at some point reduced to letter size, and then sent through a low-resolution fax machine; because that’s the only documentation you can still find.I for one am happy I will never have to see the innards of an old SEM again!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203029",
"author": "strider_mt2k",
"timestamp": "2010-10-26T09:12:17",
"content": "Meh, boards are boards.Hunker down with a Huntron and/or a good meter and start shooting each component individually.You have an hour… ;)This is so beyond me that I would pay admission to see it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203035",
"author": "MRE",
"timestamp": "2010-10-26T09:21:44",
"content": "Crap had!!Silicon!!! Silicon!!!No e!! Although she did use siliconE to glue the silicon wafer done.Cone like, a cone one your head for being a dumbass. Con like the guy in prison who wants to violate you with his caulking gun.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203038",
"author": "MRE",
"timestamp": "2010-10-26T09:29:58",
"content": "Ok ok I should not attempt to spellsmack anyone while using a touch phone.Done and one kicked my ass.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203130",
"author": "barry99705",
"timestamp": "2010-10-26T14:51:34",
"content": "@psuedonymousWow, engraving elephant ivory while it’s still attached. You’d have to have balls the size of, well, the elephant to try that one out!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203144",
"author": "Jeri Ellsworth",
"timestamp": "2010-10-26T15:40:57",
"content": "@bilbao bob – I have an Amray 1800 SEM complete which you can see in WestFW’s link and parts Cambridge and ASI SEM’s that are destine for evaporation coaters.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203162",
"author": "bilbao bob",
"timestamp": "2010-10-26T16:33:17",
"content": "@Westfw –Sorry, she’s just a name to me… I know a lot of smart and gifted women, so I don’t have the whole fetish thing going that a lot of geeks seem to. To be honest, for a while I had her confused with Jeri Ryan. She seems cool, anyway. I wish I was more knowledgeable about the whole “scene” thing, but, well, you know. :)@Chris –Oh, man, I feel your pain, brother. And I’m not usually the guy[s] doing the work. It seems like every piece of high-tech medical gear I’m forced to work with is a crappy half-baked prototype rushed into production. All of it. I can’t name names, but it seems that the likelihood of equipment being crap with support engineers on site every other week is directly correlated to price. And the software… well, anyway, yeah.@Jeri-Sorry, didn’t do my research. I bow to your incipient awesomeness, or at least I would if my knees weren’t sore from messing with the wheels of my electra. But we still expect great things from you.“After all, a girl has got to have her standards.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203170",
"author": "bilbao bob",
"timestamp": "2010-10-26T16:58:53",
"content": "@stryder-m2kSEMs are like old pinball machines multiplied by 1,000. I found myself wanting to go in, rip out the useless electronics and then redesign them from scratch. Old units are horrible – You know how (well, probably not, but I’ll use it anyway) the business world is filled with half-baked middleware apps put together and maintained by outsourced indian programming teams? Same thing.Half the time, when encountering a part, you will discover that it’s the 80s or 90s equivalent of “cut and paste” glued together from the manufacturer’s application book and cobbled into operation. Useless complexity because the system was put together by guys who had lost their edge, and roughly the equivalent of building a PC from TTL logic long after FPGAs became available.There is a distinct trend of trailing-edge technology in the medical world, resulting in bad clones of the same design with a handful of differences put in to get around patents.Why is it all so crappy? For the same reason that pinball machines stopped evolving – pretty soon, all the patents and mergers meant that lawsuit barrages followed anyone trying to put a new model back on the market.With pinball, people say that the market died because of maintenance and space issues, but the biggest killer was that pinball could no longer evolve* due to a market stranglehold by one or two big manufacturers with legal staffs who were better at stomping out the competition than the engineers could ever be.(* in terms of reducing maintenance and production costs, and to a lesser extent in adding new features)The biggest issue is that on older systems “onboard diagnostics” is more of a checklist item used for marketing hype item rather than being useful, and in a properly designed system shouldn’t really be necessary.I have great hopes for our next purchase, though. Linux is sneaking into the medical research world by leaps and bounds, and it’s about time. The sad thing is that they have to almost hide it from the customers.Also, we will very soon reach a point where the SEM is about as necessary as a mechanical butterfat measuring device. I pray that the delay is measured in months rather than years.Disclaimer: We’re not doing FDA approved party tricks. Closed course with non-board certified Phds driving. Don’t try this at home. You may experience dizziness, rashes, vomiting, pruitis and other side effects. A strong urge to run naked through the streets railing against GM meat products may occur – see your Doctor if this happens, or if other unexplainable behaviour occurs, such as disbelief about the size of your paycheck. Do not attempt to operate your SEM while under the influence of drugs or alcohol.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205182",
"author": "Mr Hacker",
"timestamp": "2010-10-30T15:25:29",
"content": "it would be funny then if someone tried to use these co2 laser cutters to cut silcon",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.352644
|
||
https://hackaday.com/2010/10/25/firesheep-promoting-privacy-in-a-scary-way/
|
Firesheep: Promoting Privacy In A Scary Way
|
James Munns
|
[
"Security Hacks",
"Software Hacks"
] |
[
"extension",
"facebook",
"firefox",
"firesheep",
"flickr",
"plugin",
"twitter"
] |
Often, software hackers are the activists that push software giants towards updating vulnerable applications. In todays example, [Eric Butler] is
pushing Facebook, Twitter, Flickr, and more
all at the same time. By creating a
user
script-kiddie friendly extension for Firefox, he has allowed just about anyone to sniff unsecured connections on public Wi-Fi access points and log into these unprotected accounts.
Right now
the extension
is available for Windows and Mac, with a Linux port coming soon. Temporarily, the best way for a user to avoid getting taken advantage of would be to not use these social networking sites on a public connection, or to implement a secure proxy for these connections that would keep your data safe. Hopefully these websites will have a quick rebuttal that allows for security without workarounds. With all of the bad press they are recieving, they certainly have incentive to.
Are there any software or security buffs out there? We would love to see someone port this to an iPhone or
Android app
that could check and log open Wi-Fi points. We’ll leave the foot work to the experts out there, but do be sure to give us a heads up if anyone manages to make it happen, okay?
| 50
| 49
|
[
{
"comment_id": "202713",
"author": "really?",
"timestamp": "2010-10-25T20:17:13",
"content": "“By creating a user script-kiddie friendly extension for Firefox, he has allowed just about anyone to sniff unsecured connections on public Wi-Fi access points and log into these unprotected accounts.”“We would love to see someone port this to an iPhone or Android app that could check and log open Wi-Fi points.We’ll leave the foot work to the experts out there, but do be sure to give us a heads up if anyone manages to make it happen, okay? ”Wait are you complaining about people writing scripts in one paragraph enabling “any one” (more like those that dont know how) to do things in one paragraph, and then taking the high ground in the next saying youll leave the foot work to the experts as you publicly admit your one of the people you just complained about programmers writing scripts , and ports of said scripts for.Im confused , did i miss the punch line?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202719",
"author": "kiernan",
"timestamp": "2010-10-25T20:28:17",
"content": "Installed!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202721",
"author": "meeeee",
"timestamp": "2010-10-25T20:29:59",
"content": "What version of firefox is this for?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "593811",
"author": "vikki",
"timestamp": "2012-03-03T06:09:34",
"content": "firefox 3.6.12 and 3.6.11 in that virsion firesheep is suporrted.",
"parent_id": "202721",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "202722",
"author": "chrelad",
"timestamp": "2010-10-25T20:30:38",
"content": "LOL, I like kiernan’s comment :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202732",
"author": "Joshua",
"timestamp": "2010-10-25T20:52:03",
"content": "Not sure about Facebook, but I know Twitter’s API supports SSL sessions. Echofon has an option to use SSL for all communications, not just login, which would seem to circumvent the cookie sniffing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202736",
"author": "Bob",
"timestamp": "2010-10-25T20:55:03",
"content": "I do believe my coworkers and I will be playing with this tomorrow on the new AP we are setting up.@kiernan Double that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202738",
"author": "Alex",
"timestamp": "2010-10-25T20:58:26",
"content": "I really hope this will also capture wired LAN packets if you are on the same router as the wifi AP (I assume it does ARP poisoning)…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202743",
"author": "Bob",
"timestamp": "2010-10-25T21:09:06",
"content": "It does not do ARP poisoning, but there are tons of tools out there",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202779",
"author": "Darth Pbal",
"timestamp": "2010-10-25T22:08:21",
"content": ":( won’t install on Firefox 3.6.8…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202820",
"author": "Audin",
"timestamp": "2010-10-25T23:44:54",
"content": "What do we have to do to provide these individuals with enough INTERESTING things to play with so that they don’t bother repeating this boring old shit over and over again?Oh WOW! You’ve noticed my updates about my CAT aren’t encrypted! You’re so CLEVER! Clearly now we should all waste processor cycles (and therefore battery life) and export regulator’s time and debugging time (ever tried to debug a protocol that uses SSL? No? It isn’t fun.) and encrypt it all! Whew. Close one there! Thanks for pointing out our collective stupidity in not encrypting all this crap.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202821",
"author": "Youvsme",
"timestamp": "2010-10-25T23:45:28",
"content": "We really need a how-to for this thing. Got it installed along with that other packet sniffer that it says the windows users need and I’m on a network where i can plainly see people on the book of faces and I’ve got nothing. My computer says that the network is unsecured too.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202825",
"author": "stib",
"timestamp": "2010-10-25T23:51:38",
"content": "First thing it does on OSX is ask for an admin password. So do you type it in like a good little sheep?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202827",
"author": "Gee",
"timestamp": "2010-10-26T00:01:00",
"content": "“First thing it does on OSX is ask for an admin password. So do you type it in like a good little sheep?”Well, if you were stupid enough to pay over the odds for a second rate computer which cant run applications of any real use, you may as well just end it all and give your password out anyway.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202828",
"author": "Hooe",
"timestamp": "2010-10-26T00:08:27",
"content": "Downloaded!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202834",
"author": "Yeah",
"timestamp": "2010-10-26T00:23:23",
"content": "@stib.I have no usage for this application, but am a Mac user. Obviously the application needs access to system files, like 99.9% of OS X applications do, and require your admin password.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202847",
"author": "Eric",
"timestamp": "2010-10-26T00:55:29",
"content": "@AudinAllow me to enlighten you. Sit in a cafe for a few hours during lunch, or near a hotel in the evening, sniffing packets. You will collect vast amounts of data.What this tool allows you to do is hijack a session. What’s that mean? Well, once you’ve hijacked their session on their cat’s facebook account, you can see all the private data within. Probably an address, phone number, etc. You’re half way to identity theft, or just major harassment. Lolcats need privacy too!Seriously though, debugging things with SSL is not that difficult (which is irrelevant anyway, we’re not talking about a new PROTOCOL, we’re talking about using HTTPS, which is trivial to enable), and this attack is quite legitimate given the amount of personal information people keep in places like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202853",
"author": "DarkAurora",
"timestamp": "2010-10-26T01:05:56",
"content": "Works on 3.6.11, for those that are wondering (64 Bit Windows 7)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202871",
"author": "bilbao bob",
"timestamp": "2010-10-26T02:14:20",
"content": "Oct 31st?“We would love to see someone port this to an iPhone or Android app that could check and log open Wi-Fi points.We’ll leave the foot work to the experts out there, but do be sure to give us a heads up if anyone manages to make it happen, okay? ”How far up (and into what?) did you want to stick your head? This functionality is already built into “commercial” android devices. Google uses it to determine your position. Apple is doing this as well now. The information is correlated with GPS and cell-tower statistics, and i assure you, each and every open AP that has been accessed by an android phone has been reported back to the folks at “Do no Evil(tm)” land; In many cases, open access points are a faster and better source of (~200′ range) location information than GPS.Privacy is not quite dead yet, but I assure you that anonymity is long past pining for the fjords. The public is just catching on, but this has already become SOP for microsoft, apple and goofle. The phone companies already had cell-tower fixes from the E911 legislation.And if anyone thinks that SSL accomplishes anything more than making it hard to read your data while sniffing on the fly, you’re out of date, mate. Go ahead, look at all the certs installed on your browser. HTTPS is about as secure as a yale lockset.Got IPV6? I’ll bet you have it even if you think you have it turned off. It’s magic! Well, I’ll just stop here. No sense in letting all of the cats out of the bag in one sitting. It sort of wrecks it for the tinfoil hat crowd…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202884",
"author": "M4CGYV3R",
"timestamp": "2010-10-26T03:01:48",
"content": "Very nice implementation of a very simple concept.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202933",
"author": "Pivot",
"timestamp": "2010-10-26T04:52:48",
"content": "I love it! a user friendly graphical UI for packet filtering, and it filters just what you want! :D I’ve already used wireshark before for this kind of stuff, but this is great! now I can steal your amazon password with little work at all! ship everything to an empty house with an alias’s name and then drive by to pick up my free package!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202936",
"author": "Cindy Auligny",
"timestamp": "2010-10-26T04:56:49",
"content": "So, let check it out …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202938",
"author": "fbob",
"timestamp": "2010-10-26T05:02:51",
"content": "I don’t get it – how the fuck do I use this? Open it in Firefox 3.6.11. Configured for Airport in the preference pane and … nothing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202966",
"author": "Harry",
"timestamp": "2010-10-26T06:38:18",
"content": "Installed on FF 3.6.11 on W7x64You have to start the sidebar in FF otherwise it looks like it doesn’t install but it does.Now lets start some ARP spoofing in the Company and fire up that baby :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202969",
"author": "saimhe",
"timestamp": "2010-10-26T06:47:15",
"content": "@bilbao bobFirst, those lazy bastards must implement HTTPS. Afterwards there will be hacks aimed at why it still allows reading data on the fly. And — surprise! — this time online banking will automatically become a convenient target (due to same certificates in browser), therefore the pressure to make things work at last will be way, way stronger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203018",
"author": "Grovenstien",
"timestamp": "2010-10-26T08:34:08",
"content": "Uh hum, Perhaps best not to upload your personal info to social networking sites? My address is 46 Acacia Avenue and my social security number is 987-65-4320 DOB 08/12/73 Oh wait i must be banana man!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203027",
"author": "sd",
"timestamp": "2010-10-26T09:05:08",
"content": "@bilbao bobI really shouldn’t lower myself to respond to you but my morning caffeine hit hasn’t kicked in yet so I’m half the man I normally am.The location-awareness functionality offered by Android handsets is very different to the WiFi sniffing James was writing about in this article.Android merely looks at the access point names and triangulates your location back at their HQ based on the visible SSIDs which they collected when they were snapping up Street View imagery. This works irrespective of the security settings of the hotspots in question since no connection is made to them. The lsit of SSIDs is sent back and forth via your 3G connection if you are not connected to a WiFi network.Meanwhile, James was suggesting an app which scans for unsecured hotspots, connects to them, sniffs for Facebook authentication data and logs it for later exploitation.Hope that’s cleared it up for you, old timer ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203047",
"author": "Alex",
"timestamp": "2010-10-26T11:03:45",
"content": "Can I just confirm something: are you saying that google has actually bothered to gather a list of SSID’s and Lat / Long positions? Doesnt everyone else change their SSID regularly, and doesnt half the world have either “BT HOME HUB” or “Linksys” or “Netgear” as their SSID?A x",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203072",
"author": "piippi",
"timestamp": "2010-10-26T11:52:04",
"content": "@alexThey’re talking about MAC addresses maybe (BSSID), they are relatively static. Otherwise it’s like you said.Though google is still telling me I’m at my previous apartment, because I took my AP with me.. so a few drawbacks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203078",
"author": "aeiah",
"timestamp": "2010-10-26T12:16:31",
"content": "@Axbecause WPA hashes are salted with the SSID, most broadband providers now append a 5 or so digit number to the end of each SSID, so it’s unique and people can’t use the cowpatty WPA ‘rainbow’ tables or realistically generate generic ones. this uniqeness is also helpful for when google does a drive by on unsecured ones and accidentally saves the information they gather.i dont think manufacturers do this yet though, so there are probably loads of ‘netgear’ and ‘linksys’ SSIDs even if there are no longer plain old BT HOME HUB and O2Wireless ones.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203137",
"author": "Tanner",
"timestamp": "2010-10-26T15:16:16",
"content": "@SDAdding to what you said, it’s also a feature that YOU TURN ON.With Android, pretty much everything privacy related is asked of you before installation. Google asks if it’s ok to collect certain data, apps say that they need GPS locations, etc…Privacy isn’t dead. We’re willingly giving it away in some cases & in others we choose to hold onto it for dear life. Like anything else in life, it’s all about the context.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203199",
"author": "bilbao bob",
"timestamp": "2010-10-26T17:44:25",
"content": "@SD –The drive around stuff was before they realized that android users could do it for them much better than rolling around their little cars… which are being redone to be much less noticeable, btw. This caused no small amount of friction between verizon and google, largely because verizon hadn’t made much money off the data yet.BTW, the access point triangulation is still in beta stage. The data is being gathered very quickly by using cell tower fixes, even if this is somewhat behind the scenes.…and you knew that Google is in the process of doing UAV evaluations, right? Google was founded by a couple of bright guys, but that wasn’t how they succeeded in becoming the biggest thing since sliced bread. They succeeded because the guys who work behind the door marked “THEY” had some serious money available [pallets of it, evidently], in exchange for a big piece of the action and access to all that raw information.I’m not a tinfoil hat guy – this stuff is all common sense, and as I said, I’m all for it… I just want it to be common knowledge to everyone not paying attention.Apple has recently embraced this – you cannot connect to the mother ship in itunes without acknowledging that you explicitly give them the right to track and use your location information. Why does apple make you agree [even though you lose access to the apple world if you decline] by checking a box when google just presumes?And the google privacy stuff you’re agreeing to? Look closely – that’s just you agreeing to give your data to third parties and apps. Google still gets and keeps everything, regardless of your settings. Oh, it may split into separate tables, but it can be associated with a single query.@piipi – yes, basically wireless protocol mac addresses. Rename as you like – the info stays the same.Well, from the smell of it, I’ve spread enough FUD on the garden for one day. :)Caution: Everything I write is obviously fictional, and any resemblance to actual people, places or activities which are going on as I write this, is pure coincidence.Of course, the fact that you can comb the rulings and legislation of your own state(s) and the feds/DOJ websites and discover that legislation is already in place to protect these applications from SCOTUS review should be no cause for alarm.And as they say, only shoplifters turn their heads up to look for the cameras.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203226",
"author": "Matej",
"timestamp": "2010-10-26T18:27:17",
"content": "hi,when i try to use this extension this error is shown:ReferenceError: Cc is not defined",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203249",
"author": "Clearmoon247",
"timestamp": "2010-10-26T19:22:33",
"content": "the ReferenceError:Cc is not defined occurs when you dont have winpcap installed",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203341",
"author": "sd",
"timestamp": "2010-10-26T21:54:51",
"content": "Nurse! I think Bob needs his dosage increasing…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203397",
"author": "ccapinho",
"timestamp": "2010-10-27T01:23:36",
"content": "I already installed it but it seems like it doesn’t work because it does capture any interface in my network!!! any suggestions!!!??",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203399",
"author": "ccapinho",
"timestamp": "2010-10-27T01:24:55",
"content": "I already installed it but it seems like it doesn’t work because it does NOT capture any interface in my network!!! any suggestions!!!??",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203401",
"author": "gaga",
"timestamp": "2010-10-27T01:35:08",
"content": "“ReferenceError: Cc is not defined” appears when I want to change preferences even if Winpcap is installed before or after Firesheep on a Windows XP SP3 Netbook.Maybe it’s because it’s because of WIFI card drivers?Please can someone give solutions it’s a problem that occured on a lot of discussion.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203630",
"author": "kim",
"timestamp": "2010-10-27T10:35:40",
"content": "how do i install the application?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203667",
"author": "kim",
"timestamp": "2010-10-27T13:50:41",
"content": "how do i insall the application for windows 7 64bit ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203696",
"author": "Bazics NewsFeeds",
"timestamp": "2010-10-27T16:00:16",
"content": "This is how to install Firesheep to hack Facebook or Twitter accounts. This is disseminated for educational purposes only and not recommended for general use. However, I have posted already earlier how to protect your account information from this hacking software that can hack Facebook, Twitter or other accounts.Source:http://www.bazics.net/2010/10/how-to-install-firesheep-that-can-hack.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203768",
"author": "zed brannigan",
"timestamp": "2010-10-27T20:17:56",
"content": "Hello, It wont install on my Firefox 3.6.8 (Im Using the newest Mac OS X) Please help",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203801",
"author": "lulzdude",
"timestamp": "2010-10-27T21:34:18",
"content": "Given that most people dont know jack squat about arp spoofing, this tool wont do them much good, its still going to get the media, at least online hyped up when they dont know anything about how it works and they’ll be scream omg we are being haxxored. /sigh",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203806",
"author": "clb92",
"timestamp": "2010-10-27T21:48:50",
"content": "Hi,I installed the plugin, set up WINPCAP (rebooted to be sure), opened Firefox and started capturing. It works! Unfortunately it only captured sessions when they were logged into on this computer :(Can anyone explain how to do? I’m a bit new to all this :)Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203949",
"author": "PalaDolphin",
"timestamp": "2010-10-28T03:47:43",
"content": "After installing WinPcap, the Preferences dialog box seems to be working. That is I no longer have the “Cc is not defined” messages. I also see my WiFi card in the Capture Interface",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204029",
"author": "John",
"timestamp": "2010-10-28T06:37:52",
"content": "Good to see idiots making more tools for script kiddies. I hope the thing has Zeus embedded in it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207515",
"author": "kenny mayne",
"timestamp": "2010-11-04T05:27:57",
"content": "@SD –The drive around stuff was before they realized that android users could do it for them much better than rolling around their little cars… which are being redone to be much less noticeable, btw. This caused no small amount of friction between verizon and google, largely because verizon hadn’t made much money off the data yet.BTW, the access point triangulation is still in beta stage. The data is being gathered very quickly by using cell tower fixes, even if this is somewhat behind the scenes.…and you knew that Google is in the process of doing UAV evaluations, right? Google was founded by a couple of bright guys, but that wasn’t how they succeeded in becoming the biggest thing since sliced bread. They succeeded because the guys who work behind the door marked “THEY” had some serious money available [pallets of it, evidently], in exchange for a big piece of the action and access to all that raw information.I’m not a tinfoil hat guy – this stuff is all common sense, and as I said, I’m all for it… I just want it to be common knowledge to everyone not paying attention.Apple has recently embraced this – you cannot connect to the mother ship in itunes without acknowledging that you explicitly give them the right to track and use your location information. Why does apple make you agree [even though you lose access to the apple world if you decline] by checking a box when google just presumes?And the google privacy stuff you’re agreeing to? Look closely – that’s just you agreeing to give your data to third parties and apps. Google still gets and keeps everything, regardless of your settings. Oh, it may split into separate tables, but it can be associated with a single query.@piipi – yes, basically wireless protocol mac addresses. Rename as you like – the info stays the same.Well, from the smell of it, I’ve spread enough FUD on the garden for one day. :)Caution: Everything I write is obviously fictional, and any resemblance to actual people, places or activities which are going on as I write this, is pure coincidence.Of course, the fact that you can comb the rulings and legislation of your own state(s) and the feds/DOJ websites and discover that legislation is already in place to protect these applications from SCOTUS review should be no cause for alarm.And as they say, only shoplifters turn their heads up to look for the cameras.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218817",
"author": "Thomas Wrobel",
"timestamp": "2010-11-26T02:04:41",
"content": "“Oh WOW! You’ve noticed my updates about my CAT aren’t encrypted! You’re so CLEVER! Clearly now we should all waste processor cycles (and therefore battery life) and export regulator’s time and debugging time (ever tried to debug a protocol that uses SSL? No? It isn’t fun.) and encrypt it all! Whew. Close one there! Thanks for pointing out our collective stupidity in not encrypting all this crap.”The point is more that people shouldn’t by any means think stuff like Facebook is secure, and should run a mile from using it as their email.kenny mayne“And the google privacy stuff you’re agreeing to? Look closely – that’s just you agreeing to give your data to third parties and apps. Google still gets and keeps everything, regardless of your settings. ”It doesnt and they dont, actualy.Google makes an absolute killing from associative adverts, but they dont sale any data to third partys, they dont have too. They simply use it themselves.(or, rather, their algorithms do).“I’m not a tinfoil hat guy ”Yes you are.Being worried about your privacy is fine. Thinking a secret society is really behind googles success isn’t. The smart guys made a smart system and a clean website, it delivered the goods better then everyone else, and thats why it was so used.With large numbers of user’s advertising can give you a lot of money.Theres no secret “they”.Hell, if you actualy look at the structure of google they still run themselves far differently to most big companys, and are rather rare to still have mostly technical coders as their highest ranking staff.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "394678",
"author": "Harold",
"timestamp": "2011-05-16T05:37:04",
"content": "I fixed up a working version for linux herehttp://deauththis.com/forum/index.php?action=downloads;sa=view;down=5Just be sure to run it in firefox earlier than 4.0 and start up ettercap with arp poisoning and your in business",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "705200",
"author": "Thomas Rolland",
"timestamp": "2012-07-17T12:47:56",
"content": "Hi guys i am fairly new to this so please go easy on me..I am using (Mac O S X 10.6.8)Installed firefox&firesheep,unable to capture anything?With Winpcap being used for windows what is the alternative for mac users?Any help/advice would be appreciated..",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.286158
|
||
https://hackaday.com/2010/10/25/fully-customized-robots/
|
Fully Customized Robots
|
James Munns
|
[
"Robots Hacks"
] |
[
"3d",
"printing",
"robot",
"robots"
] |
i.materialise, a custom 3D printing fabrication house are
looking for talented robotics enthusiasts
with the skills to design custom robotics parts such as functional frames, decorative shells, as well as unique parts required by robots to look and perform their best. The best part? They are offering free 3D printing of parts to the people they select with the most interesting or useful ideas. Make sure you check out their blog for details on what they are looking for and how to enter, as well as checking out some of the other cool things they do, such as a fully customizable
3D printed frisbee
. Let us know what you design, we would love to show it off!
[via
Robots-Dreams
]
| 8
| 8
|
[
{
"comment_id": "202681",
"author": "Ben",
"timestamp": "2010-10-25T19:22:59",
"content": "…medabots?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202682",
"author": "walt",
"timestamp": "2010-10-25T19:23:52",
"content": "looks awesome. wonder how those cosmetic parts will hold up to some robotic fighting.1st!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202731",
"author": "P",
"timestamp": "2010-10-25T20:51:26",
"content": "look like some kind of deformed elephant head",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202796",
"author": "Jim Foster",
"timestamp": "2010-10-25T22:53:34",
"content": "So free design work for them? Yay!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202851",
"author": "Ozzy_Coff",
"timestamp": "2010-10-26T01:04:01",
"content": "auto-bots Assemble!! literary =PIf I was looking for my own creations to become real I so would chase this thing up",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203177",
"author": "Domonoky",
"timestamp": "2010-10-26T17:05:58",
"content": "I also just printed a robot on my own 3d printer. But its a industrial robot (KUKA KR180) :-)Take a look athttp://www.ifeelbeta.deorhttp://www.thingiverse.com/thing:4575for the full model data.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203191",
"author": "lobster",
"timestamp": "2010-10-26T17:28:30",
"content": "RE: BenI don’t know if I should be ashamed or proud I got that one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204020",
"author": "Malikaii",
"timestamp": "2010-10-28T05:37:43",
"content": "James, don’t forget your brackets []. Otherwise well written.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.617165
|
||
https://hackaday.com/2010/10/27/halloween-props-talking-skeleton-in-reaper-robes/
|
Halloween Props: Talking Skeleton In Reaper Robes
|
Mike Szczys
|
[
"home hacks"
] |
[
"arduino",
"Halloween props",
"reaper",
"skeleton",
"wav shield"
] |
Here’s a great way to guard your front door on Halloween. [Sam Seide] built
a motion controlled talking skeleton
. The electronics are fairly straight forward, consisting of an Arduino, WAV shield, PIR motion sensor, servo motor for the jaw, and a couple of red LEDs for the eyes. But [Sam] did some really neat things in the design of the skeleton itself. As we saw with
the puking pirate
, he built the body out of PVC so that he can take it apart for easy storage. Under the reaper robe you’ll find a set of powered computer speakers that connect to the WAV shield. The servo motor is mounted in the skull and moves the jaw using a small wire arm. Since the whole thing is a bit flexible (thanks to the PVC), the torque of the motor causes the skeleton to move around, adding a touch of life. Don’t miss the well-made video walkthrough after the break.
[youtube=http://www.youtube.com/watch?v=GpKBXUxfMPI]
[via
Hack N Mod
]
| 11
| 11
|
[
{
"comment_id": "203732",
"author": "sam seide",
"timestamp": "2010-10-27T18:09:58",
"content": "Thanks for posting this! Be sure to check out the other halloween vids I put up on building tombstones, pvc candles, and my huge cemetary caretaker costume I’ll be wearing in my front yard this halloween! Halloween is the greatest holiday for hacking stuff!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203741",
"author": "Anon",
"timestamp": "2010-10-27T18:30:50",
"content": "Best halloween set-up I have seen so far.altohugh…… the Arduino isn’t a microcontroller!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203743",
"author": "sam seide",
"timestamp": "2010-10-27T18:47:37",
"content": "ugh. sorry. I’m a newb at arduino stuff. haha.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203745",
"author": "sam seide",
"timestamp": "2010-10-27T18:50:26",
"content": "from wikipedia article on arduino:“An Arduino is a single-board microcontroller and a software suite for programming it.”so is it not a microcontroller?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203750",
"author": "Will",
"timestamp": "2010-10-27T19:04:51",
"content": "It’s an augmented microcontroller, the ATmega is the microcontroller.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203752",
"author": "Addidis",
"timestamp": "2010-10-27T19:21:41",
"content": "Arduino is not technically a microcontroller , Arduino is technically the hardware (the headers, the variation of serial to Microcontroller interface, This is the easy part,) And most importantly a bootloader and a software interface (libraries) to program the microcontroller.To put it simply if:a box of parts is point AAnd a prototype is point CArduino is point B.It is the difference between me taking any where between 3 days , and a week to do something like set up an ECCP capture, the timer , the hardware , the code, and you using pulse in or count and being done in 5 mins after slapping a shield on.The microcontroller involved with the Uno for instance is ATmega328 microcontroller.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203754",
"author": "pipe",
"timestamp": "2010-10-27T19:25:18",
"content": "WIKIPEDIA NEVER LIES",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203755",
"author": "Addidis",
"timestamp": "2010-10-27T19:27:39",
"content": "Some wise guy is gonna say it so,There are actually two microcontrollers in the uno,a ATmega8U2 provides the USB interface. Just another fact that should make you feel silly calling the “arduino” a microcontroller considering it actually contains 2 actual microcontrollers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203757",
"author": "zool",
"timestamp": "2010-10-27T19:35:40",
"content": "this is from last year",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203761",
"author": "sam seide",
"timestamp": "2010-10-27T19:51:41",
"content": "Thanks for the microcontroller info, very interesting! Yes, this was my halloween project last year, but that doesn’t make it any less fun. I have video of what I’ve done this halloween up on ZackScott’s youtube channel as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204061",
"author": "strider_mt2k",
"timestamp": "2010-10-28T09:12:16",
"content": "What a great video!What a cool project!Definitely more fun than a write-up.Hmmm….",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.574699
|
||
https://hackaday.com/2010/10/27/smallest-gaming-console-ever-ever/
|
Smallest Gaming Console Ever. EVER!
|
Mike Szczys
|
[
"Microcontrollers"
] |
[
"arm",
"cortex m0",
"game console",
"RBox",
"rossum"
] |
That’s it… the
controller and the video game system
all in one. This is the standalone version of [Rossum’s] RBox.
We looked in on the prototype in June
but that was using a bulky development board. You can see the CR1632 button battery, which powers the device for about four hours, sandwiched in between the joystick and the mainboard. Exiting the image on the right are cables used to connect mono-audio and video to a TV via RCA connectors. There’s no port for interchangeable cartridges which means that all game data must be programmed into the ARM Cortex M0 processors. See [Rossum’s] demo video after the break.
[youtube=http://www.youtube.com/watch?v=r-Mdt6uzmOg]
| 26
| 26
|
[
{
"comment_id": "203697",
"author": "biozz",
"timestamp": "2010-10-27T16:13:58",
"content": "impressively small and impressively simple",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203700",
"author": "s133p",
"timestamp": "2010-10-27T16:24:30",
"content": "Does anyone know how one would go about programming an arm chip? I was doing some googling on programmers along the line of the AVR-ISP but was unable to find any useful information.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203701",
"author": "really?",
"timestamp": "2010-10-27T16:27:11",
"content": "Again , a project taken the extra mile. I would probably take the device to my machinist and make a nice zinc or AL case for it too :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203717",
"author": "Jim Atchue",
"timestamp": "2010-10-27T17:24:37",
"content": "If batteries weren’t so big, it could have been smaller.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203720",
"author": "stbtrax",
"timestamp": "2010-10-27T17:34:38",
"content": "@s133pusually JTAG or some sort of ISP or from a flash card, but the LPC1343 bootloader has the ability to be mounted as a usb drive, so you can drag firmware into it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203722",
"author": "Franklyn",
"timestamp": "2010-10-27T17:40:39",
"content": "@s133p : Define “ARM Chip” , ARM sells cores which are licensed by various manufacturers and sold in various forms. There are numerous offerings that use ARM technology but theres no “ARM Chip” being sold by ARM. The One Rossum used for prototyping is called LPCXpresso , its an ARM offering from Philips which comes with its own development tools i.e: programmer , debugger , Compiler etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203724",
"author": "Mike Szczys",
"timestamp": "2010-10-27T17:42:39",
"content": "@s133p: I don’t think I’d be going out on a limb to say that most ARM processors can be programmed with over JTAG.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203728",
"author": "McSquid",
"timestamp": "2010-10-27T17:54:07",
"content": "Scrap Brain zone FTW",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203734",
"author": "s133p",
"timestamp": "2010-10-27T18:14:06",
"content": "Thanks everyone who responded, I thought that was right but wasnt sure and my google-fu was lacking last night when I was researching.@stbtrax that is awesome, I think I may have just found my chip :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203749",
"author": "the steven",
"timestamp": "2010-10-27T19:01:03",
"content": "smallest… for now…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203762",
"author": "blue carbuncle",
"timestamp": "2010-10-27T19:55:38",
"content": "Now THAT is cool :) Great job on the build and I am incredibly jealous. I’m gonna have to dump my jagawatch project into the bottom drawer lol. Now I’ve got to get back to finishing the article :) Thanks builders and HaD!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203766",
"author": "Daniel Holth",
"timestamp": "2010-10-27T20:07:53",
"content": "The LPC chip used in this project does not support USB. Instead you can program it using the built in bootloader over a USART. In other words you only need a RS-232 to TTL converter to program this part.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203779",
"author": "bobobob",
"timestamp": "2010-10-27T20:59:17",
"content": "video says stereo story says mono, but there is a red an white and i think a third wire coming off at back which would then probs be the video",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203780",
"author": "bobobob",
"timestamp": "2010-10-27T21:00:54",
"content": "oh and on a side note, not quite a games console more interactive demo",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203809",
"author": "rossum",
"timestamp": "2010-10-27T21:55:19",
"content": "just to confirm it is stereo, 15khz per channel.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203819",
"author": "strider_mt2k",
"timestamp": "2010-10-27T22:25:07",
"content": "Incredible.I get next up! Don’t drop it in the deep-pile carpet we’ll never find it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203820",
"author": "strider_mt2k",
"timestamp": "2010-10-27T22:25:28",
"content": "Oh yeah…trace the cables, of course!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203937",
"author": "notmyfault2000",
"timestamp": "2010-10-28T03:24:52",
"content": "Put a MicroSD slot on it to store games instead of direct programming and you have a winner!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204035",
"author": "shiftybill",
"timestamp": "2010-10-28T07:10:03",
"content": "looks like he’s managed to squeeze a lot of power out of such a small device! props",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204036",
"author": "Max",
"timestamp": "2010-10-28T07:14:10",
"content": "Nicely exemplifying the conundrum of the post-PC world – “we can hack up some hardware that will work fairly easily; but who will write software for it (and what good will it be if nigh-on nobody will, past a demo or two)?”. And the only reason I’m not saying “post-micro world” is ’cause they pretty much were the only hardware to program for long enough back then that SW support was not an issue…Still a lot of work, of course, and an impressive achievement though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204165",
"author": "Squirrel",
"timestamp": "2010-10-28T13:53:40",
"content": "Building something this small just proves that you don’t need to compensate",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204191",
"author": "walt",
"timestamp": "2010-10-28T15:07:35",
"content": "holy eff! this is terrific!!! nicely done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204298",
"author": "Diego",
"timestamp": "2010-10-28T19:37:48",
"content": "alert(“Love It!!”);",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204484",
"author": "Squirrel",
"timestamp": "2010-10-29T05:52:54",
"content": "On a side note, a wii nunchuck would make a great enclosure for this project (minus the whole battery changing issue…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "216266",
"author": "Peter Stuge",
"timestamp": "2010-11-22T04:09:24",
"content": "Many smaller Cortex-M microcontrollers do not have JTAG but are instead using the newer SWD (Serial Wire Debug) protocol invented (and documented) by ARM. OpenOCD support for SWD is not quite there yet, but using e.g. a Versaloon adapter it could be doable. (Separate patches at versaloon.com however.)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "218816",
"author": "Thomas Wrobel",
"timestamp": "2010-11-26T01:52:30",
"content": "This is a wonderfull idea, but it strikes me it could be taken futher.How about a video game system with just a stick, and no tv output? Maybe played from a key-ring and using a earphone…or maybe vibrations…for feedback. Kinda a stealth system you could play without anyone knowing :P(also would be great for blind people)“On a side note, a wii nunchuck would make a great enclosure for this project (minus the whole battery changing issue…)”+1Plus, you got a nice stick already there.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.751832
|
||
https://hackaday.com/2010/10/27/almost-free-robo-mower/
|
Almost Free Robo Mower
|
Caleb Kraft
|
[
"contests"
] |
[
"make",
"mower"
] |
We’ve always felt that the hacker community is a unique one. Make reader [Gnomic] is reinforcing that feeling by running his own contest with unused equipment.
[Gnomic] is offering a free Robot lawnmower to someone, as long as they send the completed project writeup to Make
. The mower is a Robomower RL 850 and you have to pick it up in Richmond Va. To enter, you have to email [Gnomic] your proposal within the next 10 days. He will then choose what he feels would be the most interesting one to give the mower to. We’d love to see one of our readers get in on the action with this one. We would really love to see our logo on the final robot when it gets published to Make.
| 12
| 11
|
[
{
"comment_id": "203689",
"author": "biozz",
"timestamp": "2010-10-27T15:24:31",
"content": "i wonder how he got so many mowers that he was willing to give them away O_oand why mowers? XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203690",
"author": "John Avitable",
"timestamp": "2010-10-27T15:29:07",
"content": "@biozzI think you just answered your own question. Some company probably donated them and thus that’s why they’re doing it with mowers. :P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203692",
"author": "andrew",
"timestamp": "2010-10-27T15:44:21",
"content": "I wonder if he’s willing to ship it (assuming the winner pays of course).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203693",
"author": "biozz",
"timestamp": "2010-10-27T15:46:16",
"content": "@John Avitablei bet XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203698",
"author": "Digital",
"timestamp": "2010-10-27T16:21:00",
"content": "I’ve always wanted one of those, but the wife won’t let me… she says it’s too dangerous. I tell her that we live in an area that is constantly under siege from bears and the like. She says, screw you, I don’t like it. stupid non techie women.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "203703",
"author": "Caleb Kraft",
"timestamp": "2010-10-27T16:32:14",
"content": "@biozz,He has one. a single unit that he isn’t using.",
"parent_id": "203698",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "203735",
"author": "sam",
"timestamp": "2010-10-27T18:15:39",
"content": "here is some information on that thing… i have a half broken in yard …http://robomowerwiki.com/index.php/RoboMower",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203736",
"author": "polossatik",
"timestamp": "2010-10-27T18:15:51",
"content": "Is that waterproof? might be handy to shave your armpits.Or make a superdupe Roomba for ballrooms..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203738",
"author": "sam",
"timestamp": "2010-10-27T18:18:57",
"content": "sorry to disturb again …more pics und infos on a RL 500 (looks same as my RL1000) in german …http://www.roboternetz.de/phpBB2/viewtopic.php?t=39738",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203742",
"author": "Cbob",
"timestamp": "2010-10-27T18:37:47",
"content": "Considering the yard of the place we’re renting is about 4x this things max cap, I’d bet better off stripping parts off of a Roomba & playing Frankenstein w/the riding mower.(hmmm…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203951",
"author": "Life2Death",
"timestamp": "2010-10-28T03:48:44",
"content": "I wish they’d build logic into stuff and make it mow logically in paths…There is a vac that can do this now and follow around objects. FAIL EVERYONE.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "2596985",
"author": "JM",
"timestamp": "2015-06-06T18:54:36",
"content": "I agree, my robomower rl-1000 does not do narrow paths well at all, it gets caught up in them for along time wasting time and battery power. I often put a trash can at the entrance of the pathway after it completes this area, so it won’t go in there again. I’m thinking I would like to re-layout my perimeter wire in such a way (perhaps up and down in rows, or zig-zags) so the mower will cut the entire path area during it’s perimeter cut, then never re-enter the area. Keeping in mind that the mower follows a single wire during perimeter cut at the start of mowing session, then after it ends the perimeter mowing and turns into the lawn for it’s regular mowing phase it will then stop when it encounters a perimeter wire and change direction, yet ignores wires that are layed out right up next to each other (parallel) and drives right past them. With a well thought out wire layout, and a little extra wire, it should work.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.801977
|
||
https://hackaday.com/2010/10/26/70-led-matrix-in-a-jack-o-lantern/
|
70 LED Matrix In A Jack-o-lantern
|
Mike Szczys
|
[
"Featured",
"how-to",
"LED Hacks",
"Microcontrollers"
] |
[
"ATmega168",
"AVR",
"halloween",
"Halloween props",
"led",
"marquee",
"matrix",
"pumpkin",
"transistor"
] |
What takes eight hours to solder and uses more shrink tubing that you thought imaginable? An LED matrix installed in a real pumpkin. When I mentioned that we’d like
the LED pumpkin in last Friday’s post
scaled up to a full LED matrix I had no idea it would be me doing the work. But [Caleb] and I thought it might be just the thing to present for the hacker’s favorite holiday.
Installed in the autumn vegetable is a marquee made from a 5×14 matrix of light emitting diodes. I spaced them by printing out a grid on the computer, taping it to the pumpkin, and drilling 70 holes in the front of the thing. The real trouble came when inserting all of the LEDs from the inside; each of them has four wires soldered to it, creating a net of black wiring. Above you can see it turned out great. This is a shot of it scrolling the message HAPPY HALLOWEEN.
Join us after the break for video of this prop. But we’re not just sharing the finished product. I’ll take you through the build process. Along the way you’ll learn the design considerations that go into an LED matrix and how you can use these techniques to build your own in any size and configuration you desire.
If you want to see a larger version of the banner image
try this
, and below is the video clip promised. Sorry for the poor quality, I’m working on borrowing a better video recorder (I’ll post an update if I manage to get one). There are a couple of animations that happen too fast for the camera. One is a side-to-side sweep that looks similar to a Cylon Eye or the front of Kitt, the car from Knight Rider. The other effect that is poorly represented in the video is a chase function that outlines the rectangle of the display. These both look great to the eye, and fortunately the scrolling text comes out pretty well in the video.
[youtube=http://www.youtube.com/watch?v=ZxhLMC6zip4]
I’m going to take you down the rabbit hole of LED Matrix design but before that let’s look at what it took to make this Jack-‘o-lantern. If it turns out to be more than you can chew, we’ve got a beginners tutorial to help you
get started with these microcontrollers
.
Building the hardware
Before we talk about how to design the circuit, let’s take a look and the build process.
I decided from the start to use different colored LEDs. For reasons that I’ll discuss in-depth in the design section of this tutorial I needed to drive the LEDs at about 10 mA each. I calculated my resistors and then measured each to make sure I was close to my target. This is just fine for blue.
I wanted a way to hold the LEDs while I’m soldering, and I needed a template for drilling the pumpkin. Here I’m using that template made from my Eagle board layout to make an assembly jig using some hardboard. This turned out to be a rather poor choice of material because it started to come apart on the underside, but it worked.
I need to solder all of the cathodes in the same row together. I cut small pieces of wire (13 for each row) plus a longer wire to connect to the driver board. Above I’m soldering those wires into daisy chains.
Here’s a daisy chain for one row… four more to go.
I’m using clear LEDs which means you can’t tell what color they are when there’s no electricity running to them. Before moving a row to the assembly jig I tested them on the breadboard.
As I moved each LED from the breadboard to the jig I clipped off the excess cathode lead. From there remember the mantra: ‘Shrinktube FIRST!!!’ or you’ll be sorry. You can see it just above the solder joint in this image.
Just keep going down the row until complete. In the image above I’ve already heated the shrink tube with a candle-lighter. Note: The two images above are different rows. For one I started on the left and for the other I started on the right. I hope it’s not too confusing.
Here’s one row of completed soldering. After each I removed it and set it aside.
All of the rows have been completed and I’ve reinstalled them in the jig in preparation for soldering the anodes into columns.
Here’s the wires cut to make daisy chains for the columns. I used black wire for the short sections because I’ve got a huge supply of it compared to the red, which I’ve cut for the control lines.
The completed column daisy chains.
Here I’m soldering the fourth column. After I’ve finished one I just lifted up the five LEDs and held them aside with this third hand. Go slowly and be patient… you can do this!
Done! Well, the LEDs are all soldered. It’s time to make a control board for the rows.
Here’s the control board for my rows. I hot glued the incoming lines from the rows to the board for strain relief. Each is connected to the collector of a 2N3904 transistor. The camera flash makes it hard to see but there is a 3k3 resistor connected to the base of each transistor. I’ll add single-conductor wire to those later so they can be plugged into the breadboard. On the left you can see a wire for the GND rail, which connects to the ground of the power supply.
Each column contains the same color LED. I found that the red LEDs needed a different resistor from the rest. Here I’ve soldered resistors to the control wires for each column and soldered groups onto pin heads for each interface with the breadboard.
Here’s the finished control board. At the center of the breadboard is an ATmega168 microcontroller. The black arches connect the transistor base to PortC of the chip via the 3k3 resistors. There are three groups of column pin headers that plug into PortB and PortD.
This is an overview of the completed hardware. At this point I was sure hoping I’d be able to get this into the pumpkin.
Here I’m working on the firmware for the matrix. This is where a better choice of material for the assembly jig would have been nice. But like I said before, it worked.
Getting it in the pumpkin
I started with a fairly large donor pumpkin. I tried to pick one that had a fairly flat face without too much curve.
Before starting I made sure to locate where the matrix would be drilled by taping on another copy of the template I used for the assembly jig.
I cut a large access hatch in the back and cleaned out the guts. The seams of this will not be seen from the front.
Here it is, nice and clean. I want to keep as much wet gunk away from the electronics as possible.
Time to drill. I used a bamboo shish-kebab skewer to poke a pilot hole through the skin of the pumpkin so the drill-bit wouldn’t wander. I found a 13/64th drill bit worked perfectly.
Here’s the completed grid.
Here’s where the LEDs need to go. I spent a bit of time making sure the holes were cleaned out using the skewers.
Take a deep breath and start inserting LEDs. Once I had them all in place I powered up the unit and checked to make sure I hadn’t switched around any of them. Once I knew it was right I used a skewer to push each LED through to the surface.
This little plastic dish keeps the control circuitry dry on the bottom. I’ve added a little 5v regulator I built for a different project, with a 9V batter hidden beneath the larger board.
The power is on and I’ve sealed the hatch using a few skewers.
This is how it looks with the lights on. Here it’s displaying the work BOO.
The finished product. Whew, what a relief!
How to design an LED matrix
Ok, let’s jump into the why’s and how’s of building an LED matrix.
Multiplexing
The display I built has 70 LEDs. If you individually address each LED you’re going to need 70 pins on your microcontroller. But there’s an easier way.
Multiplexing
is a method of lighting just a portion of the display at one time. Using a microprocessor you can switch which section is on so quickly that your eye doesn’t ever perceive it being off.
Because one section will be turned off while scanning through the other parts of the display you want to keep the number of multiplexed sections low. I chose to multiplex the five rows of this matrix. That means that one row will be on 1/5th of the time, which we call a 1/5th duty cycle. This is basically a type of pulse-width modulation, a technique we use to dim LEDs. I’ve used ultra-bright LEDs for this very reason.
Here’s how the multiplex of this display is going to work: Turn off all rows and columns. Set the columns you want to be illuminated in the first row. Turn on the first row driver and the columns in that row will light up. Start over and move to the second row. Here’s the schematic for the matrix I built (click to enlarge):
Columns and Addressing
We want each LED to have the same brightness. Because only one row will ever be on at one time. A single resistor in each column will work for all of the LEDs in that column. That is because an LED must be connected to both voltage and ground in order for current to flow. All of the Anodes (positive leg of the LED) are connected together in the columns, and all of the cathodes (negative leg of the LED) are connected in rows. So turning column 1 on and row 1 will let current flow through the LED at that location. The LEDs in rows 0, 2, 3, and 4 will not light because their rows haven’t been turned on and so they have no connection to ground on their cathode. In this way we build a grid of LEDs that are addressable.
Size Limitations
Multiplexing introduces an issue with current draw. I am limited in the number of columns I can drive because I’m connecting them to a microcontroller. If you look at the ATmega168 electrical characteristics in the datasheet you’ll find it can source 40mA per pin. But there is a limitation on what the supply pin of that chip (VCC) can source. The VCC pin is limited to 200mA. We must stay below that threshold or the chip may be damaged.
This is part of the reason that I chose to use 14 columns. There will never be more than 14 LEDs on at once because that’s how many are in a single row. If I drive them at 10mA each, I’m pulling a total of 140mA. This is below the 200mA threshold and leaves some room for error, and for the current that the ATmega168 needs to run. I’ve also limited it to 14 because I wanted to reserve 2 particular pins on the device for other purposes, but more on that later.
We need to consider the current on the low side of the LED matrix. The rows act as the ground connection for the display. If all the LEDs in a row are illuminated at once, there will be around 140mA coming down that control wire. It can’t be connected directly to a microcontroller because that’s too much current for one pin. Instead, I’ve used an NPN transistor. The 2N3904 conveniently has a 200mA limit which is enough to handle the 140 mA sinking from the display. These transistors work like a switch, requiring just 1/100th of the current you are switching to be present on the base leg of the device in order for it to connect the control wire to ground.
How can we make bigger displays?
I wanted to keep the parts count for this display small, but there’s really no limit on size if you’re willing to add more components. Beefier transistors allow you to switch much higher currents. And you can use cascading shift registers to expand the number of columns. Those shift registers are addressed with one data line and a clock… pulsing data in serially instead of in parallel as we’re doing in our example. You take a speed hit because it takes two cycles for each column (one to set the data bit, one to clock it in, and repeat until all columns have been pulsed in). Explaining this in detail is beyond the scope of this tutorial but as long as you are keeping current consumption for your parts within the device specifications you
can
go big.
Making the connection
As I said above, I wanted to keep my parts count to a minimum and so chose not to use shift registers. That means I need one pin for each column and one pin for each row. Using all eight pins on PortB and PortD of the microcontroller I could still hook up the five rows to PortC AND have at least one pin left over (two pins if you want to use RST as I/O). Why didn’t I make this 16 columns long?
There’s a good reason. I wanted to leave the serial port on the chip available for future use. RXD and TXD are located on pins 0 and 1 of PortD. I could have moved the last two columns to a different port but that would mean addressing 3 ports for the columns instead of two; causing a slowdown in the performance of the processor.
Writing the code
Writing code for a multiplex display comes in two parts; some type of frame buffer, and code to handle the multiplexing in the background.
Please
download the source package
and follow along.
There are pin, port, and data direction register defines at the top that will clarify what some of the code examples in this post are doing.
Frame buffering
This is a simple concept. You need a data structure that represents the physical display. We’re operating with pixels that are either on or off, which is the definition of binary code. So we just need to think of our currently displayed frame as five integers. An integer is a 16-bit number when working with AVR; one bit for each LED (two bits will go to waste) and five integers for the five rows:
volatile int buffer[5] = { 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 };
I’ve used hexadecimal instead of binary to instantiate this array. That’s a pretty common practice because it takes 1/4 of the characters to represent the same amount of data. Be assured, 0x0000 and 0b0000000000000000 equal the same value.
Also notice that I’ve used the keyword ‘volatile’. This is extremely important, because this data will be accessed by both an interrupt service routine, and the main body of the code. If it is not volatile the compiler may optimize out changes to this code, resulting in bizarre and hard to debug behavior. Also, we’re using 16-bit data types on an 8-bit device. It will be important to disable interrupts when changing the data so that we don’t have an interrupt happen between changing the first and second bytes of an integer. More on this later.
Interrupt drive multiplexing
This is really one of the easiest parts of this process. It can just be a little hard to wrap your mind around what’s happening at first.
We don’t want to ever think about what’s happening with the scanning of our five rows. Using a timer-based interrupt we can multiplex the display at a constant rate and forget about it.
Here’s how it works. We set up a timer to trigger an interrupt many times per second. When that interrupt occurs, the processor will stop running the main loop of our code (no matter what’s going on) and run the code in our Interrupt Service Routine (ISR). Here’s how I setup Timer1 to interrupt 500 times per second:
//Initialize the Timers
static inline void initTimers(void) //Function used once to set up the timer
{
TCCR1B |= 1<
TIMSK1 |= 1<
OCR1A = 0x07D0; //Set compare value for 500 times per second
sei(); //Enable global interrupts
}
Let’s consider the math for just a bit. The ATmega168 has an internal clock that is set to run at 1 MHz. I’d like to have my display updated 500 times per second, resulting in a complete refresh 100 times per second. So 1,000,000 cycles per second divided by 500 interrupts equals a target of 2000 cycles. I need to set up a timer that will count each of the system clock cycles and trigger an interrupt when 2000 of them have passed. That is what I’m doing with the OCR1A value, 0x07D0 is the hexadecimal equivalent of 2000.
For those of you who really know what you’re doing you’ve probably notice an error. The Timer starts counting at 0 instead of 1, which means I really should be interrupting at one cycle less that 0x07D0 but it’s close enough for jazz.
Interrupt handling
Now that we’ve written code to create an interrupt 500 times per second we’ve got to do something when that happens. The plan is to keep track of the next row that should be turned on. At the beginning of the interrupt we’ll turn off the entire display, set the column pins for the next row to be displayed using the frame buffer, turn on that row, and setup for the next interrupt. Here’s the code to make that happen:
ISR(TIMER1_COMPA_vect) //Interrupt Service Routine handles multiplexing
{
//Shutdown all rows
rowPort &= ~rowMask;
//Shutdown all columns
colPort0 &= ~colMask0;
colPort1 &= ~colMask1;
//Set buffer data to columns
colPort0 = (char)buffer[row_track];
colPort1 |= ((char)(buffer[row_track] >> 6) & 0xFC); //Shift data and mask out lower bits (reserver for Rx and Tx)
//Drive row
rowPort |= (1<<(4-row_track));
//Preload row for next interrupt
if(++row_track == 5) row_track = 0; //Row tracking
}
There is a bit of magic code going on above. Here it is out of context so we can pick it apart:
colPort1 |= ((char)(buffer[row_track] >> 6) & 0xFC)
I’ve defined ‘colPort1’ earlier in the source code as PORTD. That’s the one where we’ve reserved the lowest two bits for later use as a serial connection. When we write the integer data to a port only the lowest 8-bits will be read by the microcontroller because that’s the size of the ports. To the right of the equals sign I’m casting the integer data as an 8-bit char. We want the most significant byte of that integer data for columns 8-13, so we’re shifting the data to the right. But I only shifted it six spaces, because we’re not going to use the lower two bits of the register. Finally, I used the bitwise ‘&’ operator to mask out the lower two bits so that we don’t mess up any other uses for those pins that may come in the future. I feel this line of code is a great example of the power of binary data and if you don’t fully understand it you simply must take the time to study how this works. It’s a fantastic part of working with embedded systems.
Manipulating the frame buffer
Our display is multiplexing in the background and we no longer have to worry about that. Now you can display just about anything you want by manipulating the frame buffer.
In this case, the frame buffer is an array of five integer values. As I discussed earlier, when working with an 8-bit device it takes at least 2 cycles for it to write a 16-bit integer. What happens if an interrupt fires between those two cycles? For this reason it’s important to disable interrupts while changing the frame buffer. But disabling interrupts will stop our automated multiplexing so make sure you change the frame buffer quickly and enable interrupts as soon as you can.
void clearScreen(void)
{
cli();
for (unsigned char i=0; i<5; i++) buffer[i] = 0x0000;
sei();
}
The above code is probably the simplest example we can use. This will immediately clear the display. The ‘cli();’ command will disable interrupts, and the ‘sei()’ command will enable them. In between I’ve used a ‘for’ loop to set all five integers in our buffer array to 0x0000, which represents off. If I had set them to 0x1111, all of the LEDs in the display would be illuminated.
You take it from here
Explaining every part of the example code is beyond the scope of this tutorial. But take some time to figure out how it works. I’ve stored the font array and the messages in PROGMEM or I would have run out of ram. [
Dean Camera
] has
a great tutorial on PROGMEM
use which you should read if you haven’t used it before. As for everything else, play around and see what you can do!
Follow Me
@szczys
Resources
Source files
How to program AVR microcontrollers
| 23
| 23
|
[
{
"comment_id": "203352",
"author": "bluewraith",
"timestamp": "2010-10-26T22:23:52",
"content": "Nice writeup. I’ve been playing around with homemade 8×8 matrices for the past few days using a MAX7219. It takes care of the multiplexing for me, and all of the current limiting is done with just one resistor over the chip.I may have to finish a couple more 8x8s and fit them into a pumpkin now..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203358",
"author": "andrew",
"timestamp": "2010-10-26T22:51:03",
"content": "Holy cow, nice write-up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203369",
"author": "Hirudinea",
"timestamp": "2010-10-26T23:22:13",
"content": "Forget the write up thats one cool pumpkin!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203374",
"author": "Bodie",
"timestamp": "2010-10-26T23:35:04",
"content": "If I had my tools and a place to put it (other than the hallway I share with 3 other apts.), I’d build me a Cylon Pumpkin. By your command.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203384",
"author": "grenadier",
"timestamp": "2010-10-27T00:00:06",
"content": "I would love to see more posts like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203396",
"author": "doug",
"timestamp": "2010-10-27T01:14:57",
"content": "pleassse please keep making more of these postsi think this is what hackaday needs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203407",
"author": "M4CGYV3R",
"timestamp": "2010-10-27T02:07:09",
"content": "Great post! It might be the longest I’ve seen on HAD yet…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203413",
"author": "propeine",
"timestamp": "2010-10-27T02:24:12",
"content": "I read hackaday every day and rarely reply but this is how a “how to” is done! Explaining choices behind design decisions, using enough depth to convey your point without going off topic too deeply, and yet leaving a little thinking to the reader. I commend you sir. Also this is way sweeter than the mini pumpkins we flashed with 555s when I was younger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203462",
"author": "TheAstrogator",
"timestamp": "2010-10-27T04:17:03",
"content": "Eww yuck, a Radioshack multimeter.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203637",
"author": "James",
"timestamp": "2010-10-27T10:50:56",
"content": "very cool!….a lot of effort was put in, good job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203649",
"author": "Prankster",
"timestamp": "2010-10-27T12:02:53",
"content": "Pretty awesome, but lets make it look like a pumpkin! Make it look like it has some eyes with the leds… And mabe make them blink or look from side to side or up and down.. That would be super cool… Time to add a mouth also….Nice work!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203668",
"author": "Mike Szczys",
"timestamp": "2010-10-27T13:50:49",
"content": "2TheAstrogator: Yeah… maybe someday I’ll get my hands on a better multimeter but for now this one works.@Prankster: You’re right, if I had more time I would have added a row of LEDs for a mouth and a circle for a smile. But there’s always next year.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203682",
"author": "Bob",
"timestamp": "2010-10-27T14:50:36",
"content": "I think it might have been a better effect if the leds were positioned without breaking the skin of the pumpkin so that they glowed through",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203683",
"author": "Panikos",
"timestamp": "2010-10-27T14:53:56",
"content": "really nice article. photos at every step and clear writeup.Thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203702",
"author": "strider_mt2k",
"timestamp": "2010-10-27T16:31:17",
"content": "Multimeter snobbery…really?Say what you want about a man’s tools, but at the end of the day it’s what gets built that tells the tale.I’ve seen dudes with massively cool setups sitting on their thumbs and guys with nothing scratching together magic and miracles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203845",
"author": "Mikael \"MMN-o\" Nordfeldth",
"timestamp": "2010-10-27T23:18:58",
"content": "I noticed that your post contained incorrect sample code when configuring the timer interrupts.I only recently learned what those lines of code actually do with the internal timer and the Atmega168 registry, hence I noticed.Either way, I thank you for a nice tutorial on organic matrix arrays! Now do it with OLEDS (or better yet,pickles)!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203939",
"author": "Cindy Auligny",
"timestamp": "2010-10-28T03:27:20",
"content": "Your post is quite clear and easy-understood. Great. Happy Halloween day!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203946",
"author": "farah",
"timestamp": "2010-10-28T03:40:07",
"content": "hey this is so cool..! btw, this is what we had to do for our project sans the pumpkin of course. We had to display our name with 6×12 LED matrix.Already submitted our project.Anyway, can I link your site?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204027",
"author": "Daniel Smith",
"timestamp": "2010-10-28T06:30:54",
"content": "Aparrently Tracy Staedter over at the dicovery channel liked this toohttp://news.discovery.com/tech/carve-a-pumpkin-pffff-use-leds.html#mkcpgn=rssnws1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204642",
"author": "ColinB",
"timestamp": "2010-10-29T14:17:33",
"content": "Mike Szczys wrote: “In between I’ve used a ‘for’ loop to set all five integers in our buffer array to 0×0000, which represents off. If I had set them to 0×1111, all of the LEDs in the display would be illuminated.”While you’re obviously right when you say “Be assured, 0×0000 and 0b0000000000000000 equal the same value,” it’s clear that 0x1111 != 0b1111111111111111. Hexadecimal is easy to convert to binary since each hexadecimal digit can be converted directly to a nibble, a block of 4 bits.The correct statement is that 0x1111 = 0b 0001 0001 0001 0001.Always remember that decimal, hex, binary, or any other base is just a convention allowing representation of any real number or integer using a finite set of symbols. It is often helpful to think of a number’s representation written in a given base as the sum of the products of its digit values with the implied base power for each digit. That is, 0x1111 = 1 * 16**3 + 1 * 16**2 + 1 * 16**1 + 1 * 16**0.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "215357",
"author": "Bobby L",
"timestamp": "2010-11-20T09:47:35",
"content": "Hi, i was wondering if there was a schematic of how the pins are connected from the micro controller to the LED matrix?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "319065",
"author": "behzad",
"timestamp": "2011-01-30T20:16:43",
"content": "hi —> WOW. just WOW and yoohoohey i’m TRY to make rgb led 70 x 70 monitorit’s been long time i’m just collect information about any thing.are you made rgb matrix led monitor ?please give me some info please",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "843937",
"author": "alienredqueen",
"timestamp": "2012-10-29T20:32:18",
"content": "Wonder if you could get a similarly cool effect using light bright pegs illuminated by a candle inside… a lot less wiring I imagine. ;)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.689878
|
||
https://hackaday.com/2010/10/26/portal-shirt/
|
Portal…shirt?
|
Jakob Griffith
|
[
"digital cameras hacks",
"Peripherals Hacks"
] |
[
"camera",
"halloween",
"lcd",
"portal",
"shirt"
] |
[Ben Heck] is in the
Halloween spirit
with his Portal inspired “see through” t-shirt. That is, a thin lcd is mounted on [Ben’s] chest, with a
not as thin
camera mounted on his back; when the system is running, everything behind him is captured by the camera and displayed on the LCD. The concept isn’t exactly new by any means, often by the name of “
gaping holes
” or “
hole through body
” or
more
, but the project goes to show that a creative costume isn’t always the most elaborate, expensive, or even a new idea. Catch a video of how to make your own Portal shirt, after the jump. Oh, and you can win the Portal shirt
here
.
[via
The Daily What
]
[youtube
http://www.youtube.com/watch?v=p4dUm1oYLL0&feature=player_embedded%5D
| 29
| 28
|
[
{
"comment_id": "203311",
"author": "Hirudinea",
"timestamp": "2010-10-26T20:55:42",
"content": "Holy shirt, that’s neat!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203313",
"author": "Caleb",
"timestamp": "2010-10-26T21:06:27",
"content": "anyone say active camoflage?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203315",
"author": "notmyfault2000",
"timestamp": "2010-10-26T21:09:44",
"content": "@Caleb: It’s a neat concept but for something like AC it doesn’t quite work due to perspective changes. Also, the glowing monitor on your chest might give you away in the dark…I still want this shirt though. Too bad I’m flat broke.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203323",
"author": "Reaper",
"timestamp": "2010-10-26T21:14:28",
"content": "Everyone knows portals don’t work on moving objects…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203325",
"author": "Chris Muncy",
"timestamp": "2010-10-26T21:16:15",
"content": "I good tweak for that would have gotten the camera’s focal length to match the real world (50mm +/- IIRC)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203327",
"author": "zool",
"timestamp": "2010-10-26T21:18:28",
"content": "video has been set to private :/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203329",
"author": "Hirudinea",
"timestamp": "2010-10-26T21:21:53",
"content": "@notmyfault2000Seems Ben’s having a contest to give the shirt away, mabye you’ll get lucky.http://www.element-14.com/community/thread/6083?start=0&tstart=0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203330",
"author": "Erik Johnson",
"timestamp": "2010-10-26T21:27:04",
"content": "Very cool, agree with @Chris Muncy, it should show a roughly 1:1 with what the eye sees in an eyeful.I would also be very cool to have EL wire/LEDs pulsating on the edge instead of static paint for the portal outline/event horizon.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203334",
"author": "cde",
"timestamp": "2010-10-26T21:41:09",
"content": "Its not think with portals until both sides of the shirt have a portal. Just double up on the number of lcds and cameras.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203337",
"author": "M4CGYV3R",
"timestamp": "2010-10-26T21:44:22",
"content": "Kinda sucks not being able to see it in action. Video is private, and no alternative linkage from Ben’s site.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203366",
"author": "axodus",
"timestamp": "2010-10-26T23:19:52",
"content": "video link:http://www.youtube.com/watch?v=fqNDvHgwOZE",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203367",
"author": "Brad",
"timestamp": "2010-10-26T23:20:20",
"content": "You can catch the video athttp://www.revision3.com/tbhsWhen we put it together we noticed the issue with the focal length, but it was just a for fun type of thing that we did in my garage, using the parts on hand. The camera, while decent and pretty cheap just didn’t do the focal length to make it totally realistic. Still a fun project though! =)-Brad <-the old mushmouth sounding guy in the video",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203372",
"author": "Hacksaw",
"timestamp": "2010-10-26T23:34:05",
"content": "Ben heck strikes again…this is among the coolest “Halloween” things i’ve seen in years",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203394",
"author": "jeb",
"timestamp": "2010-10-27T00:50:41",
"content": "Hasn’t this been done before as a harry potter invisibility cloak or something? I suppose it is a slight improvement but this idea has totally been done. I mean i’m a big fan of ben but the guy makes loads of cool shit we don’t need to worship just anything he makes because he made it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203398",
"author": "Trollicus",
"timestamp": "2010-10-27T01:24:15",
"content": "Oh no, he’s turned himself into a teletubby!Help find a cure! This could happen to you, this could happen to anyone!!!Holy Shirt!I think I’m going sane in a crazy world!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203400",
"author": "adam",
"timestamp": "2010-10-27T01:30:18",
"content": "hate to ruin it but it was done 2 years ago except it was a “Death Becomes Her” dress. Its still really cool and i was thinking of doing it myself and wear around between classes but i didn’t have the money to order a couple of camerashttp://www.instructables.com/id/Death-Becomes-Her-Halloween-Costume/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "203404",
"author": "Caleb Kraft",
"timestamp": "2010-10-27T01:45:35",
"content": "@adam,yeah, that “Death becomes her” link is in the article.",
"parent_id": "203400",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "203409",
"author": "adam",
"timestamp": "2010-10-27T02:10:56",
"content": "yeah sorry didn’t even read trough, my brain is fried today",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203513",
"author": "24601",
"timestamp": "2010-10-27T06:45:41",
"content": "Slightly annoyed by the intrusion of the xbox project in the middle. Oh well…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203532",
"author": "soopergooman",
"timestamp": "2010-10-27T07:12:28",
"content": "im gonna use my psp GO!Cam and an a psp 2000 to achieve this. will post a vid…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203651",
"author": "Don",
"timestamp": "2010-10-27T12:18:22",
"content": "Hey is Multi- meteror mul-tim-eter( sounds like altimeter with an M)his pronunciation?????????????",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203672",
"author": "Itwork4me",
"timestamp": "2010-10-27T13:57:24",
"content": "Sorry i know he used parts at hand but if rather see someone use…ya know I just won’t say and leave it a mystery.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203676",
"author": "Mike",
"timestamp": "2010-10-27T14:26:39",
"content": "ED has some great (NSFW) Portal pics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203714",
"author": "Jake-P",
"timestamp": "2010-10-27T17:18:43",
"content": "I love this kind of stuff but have no idea how they manage to pass information to the lcd. Can someone either explain or point me to a website showing how they rig the stand alone lcd to display images?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203746",
"author": "Grovenstien",
"timestamp": "2010-10-27T18:50:57",
"content": "Portal not Port Hole! Multi- Metre not mul tim metre. Also the camera needs a longer lens length perhaps a 50mm to give much less perspective for this to look really good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203756",
"author": "dalton",
"timestamp": "2010-10-27T19:33:15",
"content": "portal sucks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204019",
"author": "smilr",
"timestamp": "2010-10-28T05:35:50",
"content": "@jakeThe lcd they used has a composite (yellow rca) video input. The camera they used has a composite video output. They simply connected video and ground wires out of the camera to the video and ground input wires on the lcd.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204382",
"author": "24601",
"timestamp": "2010-10-28T23:37:22",
"content": "I too was annoyed by the “port-hole”, but I also use “mul-tim-eter”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204667",
"author": "Hacksaw",
"timestamp": "2010-10-29T15:10:07",
"content": "@ Grovenstien if you are going to be that picky its meter mot metre.and to be precise there is no hyphen or space in the spelling of that model so mul tim eter would be correct.just sayin if u r gonna be da grammer police u should know what u r talkin about( see what I did there talked in teen speak)",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.866083
|
||
https://hackaday.com/2010/10/26/robot-gripper-uses-coffee-to-pick-up-anything/
|
Robot Gripper Uses Coffee To Pick Up Anything
|
Mike Szczys
|
[
"Robots Hacks"
] |
[
"arm",
"balloon",
"coffee",
"grip",
"grounds",
"jamming",
"robot"
] |
Picking up a raw egg is not something we’d think a robot gripper would be good at. But
this model uses a bulbous tip
instead of claw, which makes crushing the object less of a concern.
That tip is kind of like a balloon. It is stretched full with coffee grounds but air can also be pumped in and sucked out. When it comes time to grip an object, a bit of air is pumped in and the bulb is pressed down on its target. Once in place all of the air is sucked out, locking the coffee grounds around the object. Take a look after the break to see just how many things can be gripped with this technique.
Now the real question,
can it bring me a beer
?
http://www.youtube.com/watch?v=Jj3yVf7ZUcI
[via
BotJunkie
]
| 35
| 35
|
[
{
"comment_id": "203211",
"author": "hybrid_mind",
"timestamp": "2010-10-26T18:06:12",
"content": "Now that’s an ingenious idea. I’m surprised that the tip can actually grip that well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203212",
"author": "lee",
"timestamp": "2010-10-26T18:08:25",
"content": "Apparently it can grab you a beer (bottled), possibly open it (if the bottle top doesn’t tear the balloon), pour it in a glass and serve it to you… I wonder what the max load is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203213",
"author": "andrew",
"timestamp": "2010-10-26T18:08:29",
"content": "Cool. Somebody figured out a useful application of that “shape-shifting” robot we saw last year (was it from MIT?).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203216",
"author": "andrew",
"timestamp": "2010-10-26T18:12:43",
"content": "Yep, it was last october. Here’s the link:http://hackaday.com/2009/10/15/morphing-robot-demonstrated-at-iros/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203225",
"author": "Spork",
"timestamp": "2010-10-26T18:24:05",
"content": "This is a wonderful concept, the most interesting part?“Neither the bag geometry nor details of the granular material seem to influence [the holding force] strongly, as long as they do not interfere with the degree to which the membrane can conform to an object’s surface.”@leeFrom the paper, it looks like max holding force is ~80 Newtons for an ideal object (a sphere of similar size to the balloon)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203230",
"author": "Luke",
"timestamp": "2010-10-26T18:39:14",
"content": "That is really impressive. I wonder how durable it is?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203232",
"author": "fjr",
"timestamp": "2010-10-26T18:43:53",
"content": "In the article they list objects with a hole being more difficult.I think they should add a single gripper/finger to latch onto more difficult objects (of certain shapes)..Nonetheless this is a really cool innovation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203240",
"author": "ccl",
"timestamp": "2010-10-26T19:03:32",
"content": "Looks like Doraemon’s hand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203241",
"author": "M4CGYV3R",
"timestamp": "2010-10-26T19:10:02",
"content": "“Jamming” might just be the dumbest name I’ve ever heard for this effect.How about Pneumatic Rigidity Locomotion or something that actually has to do with the effect?Hipster scientists tick me off…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203246",
"author": "Drake",
"timestamp": "2010-10-26T19:18:04",
"content": "Can someone say stretch arm strong?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203248",
"author": "JoJo",
"timestamp": "2010-10-26T19:20:15",
"content": "Cool, but not new. the same concept has been used in manufacturing automation for years. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203281",
"author": "gripen40k",
"timestamp": "2010-10-26T20:13:22",
"content": "@fjrWhat about a hand that looks kinda like an oven mitt, and it has the balloon suction things on the inside. That way it can ‘suck’ onto stuff from both sides.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203286",
"author": "supershwa",
"timestamp": "2010-10-26T20:26:09",
"content": "Hooray for coffee!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203287",
"author": "onida",
"timestamp": "2010-10-26T20:26:09",
"content": "one real question is, can it make me a coffee?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203289",
"author": "echodelta",
"timestamp": "2010-10-26T20:27:43",
"content": "We need a tiny one that slips on a finger tip to hold nuts and washers in place during those fumble fingered assembly times.The icosahedron-balloon on the older project is faked, in that it is ballooning out to move. NASA tried that in the moon rover days. Slower than a turtle. Wheels won. Lunakhod!Seriously, multifingered skeletal frame motor driven balloon granule covered now we got something. The rubber surface can be more robust now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203310",
"author": "trup",
"timestamp": "2010-10-26T20:53:32",
"content": "@M4CGYV3RThe effect is actually called jamming.http://en.wikipedia.org/wiki/Jamming_%28physics%29Its not some trendy word these guys invented.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203324",
"author": "Hirudinea",
"timestamp": "2010-10-26T21:15:11",
"content": "This could be useful for an amputee as an artifical hand, better than a steel claw. (Lousy for typing though)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203328",
"author": "Justin",
"timestamp": "2010-10-26T21:20:43",
"content": "creepiest sex bot ever",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203332",
"author": "TravisD",
"timestamp": "2010-10-26T21:36:47",
"content": "I suspect that the robot requires root access for control, therefore “sudo bring me a beer” might be the necessary command…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203357",
"author": "Trollicus",
"timestamp": "2010-10-26T22:45:29",
"content": "I suspect that the robot requires root access for control, therefore “sudo bring me a beer” might be the necessary command…That would make it a “Root Beer”Great hack, Love the use of Coffee, can’t get to much Coffee……",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203370",
"author": "24601",
"timestamp": "2010-10-26T23:26:54",
"content": "is it pre-brew or post-brew coffee?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203392",
"author": "Whatnot",
"timestamp": "2010-10-27T00:44:55",
"content": "Finally a robot that can pick up my tetrahedrons and tidy up a bit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203393",
"author": "M4CGYV3R",
"timestamp": "2010-10-27T00:49:53",
"content": "@trupJust because it was coined 3 years ago by some physicist doesn’t make it any less stupid than being coined now by some researcher.All of the ‘research’ into ‘Jamming’ is speculative at best. These whackjob scientists actually think that it’s a ‘new phase transition’…it’s not in any sense of the term.This is no more a new state of matter than sand on a beach. It’s a solid, with a gas introduced/removed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203403",
"author": "nave.notnilc",
"timestamp": "2010-10-27T01:42:47",
"content": "I swear I’ve seen this before, I think they were using some sort of small styrofoam bits, and a rubber (or something) glove, it was intended for prosthetics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203405",
"author": "grenadier",
"timestamp": "2010-10-27T01:46:45",
"content": "It can’t pick things up from the side, hence picking up the glass by the rim.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203437",
"author": "Ford",
"timestamp": "2010-10-27T03:24:32",
"content": "M4CGYV3R, why the hostility?First of all, if you look at the references to the Wikipedia article, you see that the term “jamming” has been used at least since the 1998 article in Physical Review Letters, and that article doesn’t even try to pass it off as some term they just coined. It’s just a straightforward description of what is happening.To me, jamming is a perfectly fitting term here. Ever heard of a traffic jam?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203489",
"author": "elektrophreak",
"timestamp": "2010-10-27T06:10:01",
"content": "this is very cool, i like it.and it looks like a breast… :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203508",
"author": "tinkermonky",
"timestamp": "2010-10-27T06:36:31",
"content": "Great idea! Almost a universal object manipulator.Would it be possible to use a torus or doughnut shaped balloon for jamming? Then you could evacuate the center of the torus for use as a suction cup for flat items. I picture a very bulbous torus with only a small hole in the center.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203517",
"author": "Spork",
"timestamp": "2010-10-27T06:53:59",
"content": "@tinkermonkyI was actually thinking of using 3 in a triangle shape with the object roughly in the center. The novel thing about a sphere as a ‘claw’ is that you don’t have to be accurate. As long as you hit the object with enough surface area, the medium ‘jamming’ it will produce enough force to lift the object.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203550",
"author": "Necromant",
"timestamp": "2010-10-27T07:43:13",
"content": "Looks like it’s time to oreder some balloons =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203658",
"author": "M4CGYV3R",
"timestamp": "2010-10-27T12:35:29",
"content": "@FordMy bad, guess my wireless keyboard was dying and dropped the 1. That should have been 13 years. I was also looking at the Wiki refs.And my hostility? Like I said, hipster scientists tick me off.They are trying to pass off a bag of sand with the air sucked out as a new state of matter. It’s at least pretentious and arrogant, and at worst misleading and detrimental to scientific progress.Traffic jams are commonly explained by a much older, sounder set of studies, which would be much more applicable here:http://en.wikipedia.org/wiki/Queueing_theory",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203666",
"author": "walt",
"timestamp": "2010-10-27T13:45:06",
"content": "very nice innovation!I guess it didn’t have to font to write the letter it tried to make so it drew a square :p",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203739",
"author": "Andynonymous",
"timestamp": "2010-10-27T18:24:16",
"content": "I have actually seen this in action.It can pick up coins.Nuff said about that, I think…Now for the trolling:@M4CGYV3RQueueing theory doesn’t really work in this case, as it finds basically finds stuff out about THINGS STANDING IN LINES.DO YOU SEE A LINE HERE? I SURE DON’T.Traffic jams fit this, as one would like to know how long one would have to wait at the light. Also they are in lines. The coffee grounds: they ain’t going anywhere and they sure aren’t in a line.I think you are the one being arrogant and misleading here. Its one thing to accuse someone doing bad science, but to then to reference science that little to NOTHING related to the subject is stupidity.I do have to say that Wikipedia saying that jamming is a phase transition seems a bit iffy, but its basically saying that sand can act like a solid in certain cases (the beach) and a liquid under others (quicksand). E.G. Nothing new, and nothing to raise a shit storm over.Actually, Wikipedia doesn’t even say that jamming is a phase transition. It actually says it “has been proposed as a new type of phase transition”.In short: You don’t deserve to use your post name. Replace your keyboard’s battery and find a different name. While you’re at it, learn to read your articles before you reference them and look up what a hipster is and make sure you aren’t becoming one yourself.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204253",
"author": "Whatnot",
"timestamp": "2010-10-28T17:17:39",
"content": "All these fights, you guys should do like that robot and get a stress ball made out of a bag with ground coffee ;)And I probably would have called it ‘packing’ I think.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204271",
"author": "Whatnot",
"timestamp": "2010-10-28T18:10:50",
"content": "Oh and for completeness:http://en.wikipedia.org/wiki/Packing_problem",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,348.985557
|
||
https://hackaday.com/2010/10/26/security-flaw-bypasses-iphone-lock-screen/
|
Security Flaw Bypasses IPhone Lock Screen
|
Mike Szczys
|
[
"iphone hacks"
] |
[
"contact",
"flaw",
"ios",
"iphone",
"lock screen",
"security"
] |
It looks like the iPhone lock screen provides just a marginal level of protection. [Jordand321] discovered
a key combination that opens the contact app
on a locked iPhone. Just tap the emergency call button, enter the pound sign three times (###), then tap call and immediately tap the lock key on the top of the phone. If this is confusing just look at the video after the break to see how it’s done.
You don’t get access to everything on the device. But this does give an attacker access to all of your contact data and allows that person to make any calls they desire.
[youtube=http://www.youtube.com/watch?v=hq8Dok2Th2s]
[via
Wired
via
9to5Mac
]
| 53
| 50
|
[
{
"comment_id": "203187",
"author": "ACIDRAIN",
"timestamp": "2010-10-26T17:13:59",
"content": "…and this is why I don’t like Apple or its philosophy of “We know what you need”.Like a pusher robot with a black turtleneck.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203193",
"author": "biozz",
"timestamp": "2010-10-26T17:31:45",
"content": "damn apple how did you let this one slip threw? XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203195",
"author": "MrCung",
"timestamp": "2010-10-26T17:32:50",
"content": "I’m not sure that i catch your drift ACIDRAIN… What has their philosophy to do with this bug? I’m sorry but i’ve seen worse bugs in some of the old Android releases and i’m sure there is bugs even in Froyo.. To me your post only seem like a flamewar-starter.Note: I myself is an Android user, and i dont exactly like Apple’s philosophy, but your post seems to be pretty useless.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203197",
"author": "MS3FGX",
"timestamp": "2010-10-26T17:36:12",
"content": "To be fair, glitches like this can happen no matter who is writing the software, and the issue will certainly be fixed soon. I don’t support many of Apple’s business practices either, but that has nothing to do with this.Android 2.0.1 had a glitch wherein the lock screen could be bypassed simply by calling the phone in question and hitting the Back button.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203200",
"author": "Alan",
"timestamp": "2010-10-26T17:44:34",
"content": "Yep, that’s stupid. Mine does it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203201",
"author": "Pilotgeek",
"timestamp": "2010-10-26T17:47:30",
"content": "So? On my Android, pulling the battery and turning it back on bypasses the lock screen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203202",
"author": "bilbao bob",
"timestamp": "2010-10-26T17:51:24",
"content": "All smartphones have a maintenance bypass.This isn’t just apple being stupid – most phones have something like this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203203",
"author": "outleradam",
"timestamp": "2010-10-26T17:52:46",
"content": "did not work on my 3gs",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203207",
"author": "Daley",
"timestamp": "2010-10-26T17:58:45",
"content": "Here in the office, we got it to work on one, but the other two we tried wouldn’t do it. One was the new iphone 4.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203208",
"author": "sp00nix",
"timestamp": "2010-10-26T18:02:17",
"content": "It’s not a flaw, it’s a feature!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203217",
"author": "Me",
"timestamp": "2010-10-26T18:12:52",
"content": "@Bilbao Bob: “All smartphones have a maintenance bypass.”How on earth is a “maintenance bypass” on a lock screen a feature? Then what is the use of the lock screen in the first place…? No, this is a Bad Thing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203229",
"author": "trekeyus",
"timestamp": "2010-10-26T18:32:20",
"content": "who even locks there phone with a lock code other then menu *?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203234",
"author": "Drone",
"timestamp": "2010-10-26T18:50:13",
"content": "Govt. made them do this.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203235",
"author": "Digital Ruse",
"timestamp": "2010-10-26T18:53:36",
"content": "You can also access people’s photo library and take pictures if you edit a contact. Thankfully, it doesn’t look like you can take them off the phone.As always, physical security is paramount regardless of the technology.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203258",
"author": "Itwork4me",
"timestamp": "2010-10-26T19:50:28",
"content": "Not an issue on 3GS, with 4.0 -8A293. Besides to say ‘bug’ is kinda misleading since your phones JBd. Hence it’s a feature.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203282",
"author": "i_love_apples",
"timestamp": "2010-10-26T20:17:25",
"content": "You can also E-mail people (ActiveSync) if you choose a contact and share it via email…delete the vcf file and compose your mail… :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203285",
"author": "butwhatsmore",
"timestamp": "2010-10-26T20:25:55",
"content": "Definitely works on mine. (ip4 jailbroken 4.2) You can also activate the voice control once ‘breaking into’ the dial pad by holding the home button. From there i was able to play music as well as make calls.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203290",
"author": "bilbao bob",
"timestamp": "2010-10-26T20:28:17",
"content": "@itwork4meIt’s still there – just hidden better.Kinda like the yellow pixels on color copiers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203292",
"author": "nutz4hs",
"timestamp": "2010-10-26T20:35:15",
"content": "tried on several iphone4s and 3gs’s all worked. but kicks you out after 30-45 secs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203294",
"author": "nutz4hs",
"timestamp": "2010-10-26T20:36:06",
"content": "forgot to say, none of which were jailbroken.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203312",
"author": "jukus",
"timestamp": "2010-10-26T21:03:39",
"content": "3gs 8gb, didnt work, unless its specific. SKEPTIC…where?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203322",
"author": "outleradam",
"timestamp": "2010-10-26T21:11:44",
"content": "I tried this unsucessfully on a 3gs running 4.1 jailbroken and my wifi stopped working afterwards",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203353",
"author": "Dave",
"timestamp": "2010-10-26T22:36:32",
"content": "This also allows access to send MMS and e-mail by selecting a contact and choosing “share contact.”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203359",
"author": "losfurcis",
"timestamp": "2010-10-26T22:51:07",
"content": "what about using that in hospitals to dial to friends and parents?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203360",
"author": "Me",
"timestamp": "2010-10-26T22:55:33",
"content": "If this is a “feature”, possibly gov-mandated … has anyone identified the method to bypass the pattern lock on an Android?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203385",
"author": "willyshop",
"timestamp": "2010-10-27T00:00:12",
"content": "uh, nope. Didn’t work on mine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203386",
"author": "scabby",
"timestamp": "2010-10-27T00:10:31",
"content": "This bug is much like the Win 98 login bypass by going to Help -> Print Help, etc. I hate Apple and all, but honestly, this crap happens. You program something with as much text as the bible, and have dozens of authors, there’s going to be mistakes. (I’m sure there’s a corollary in there somewhere…)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203391",
"author": "vonskippy",
"timestamp": "2010-10-27T00:38:30",
"content": "Didn’t work on my phone – oh yeah, it’s a Droid Incredible not some suckass Apple POS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203428",
"author": "zerocool818",
"timestamp": "2010-10-27T03:03:39",
"content": "lol i did it on my iphone 3gs and it worked i found a hidden feature not flaw lmao",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203485",
"author": "Matt",
"timestamp": "2010-10-27T06:03:38",
"content": "Any number works, not just 3 #s. Also, you can send email, send texts, and browse photos. All from the contacts list. Pretty powerful stuff. If you’re wondering how you can send a text, try sending a contact.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203492",
"author": "elektrophreak",
"timestamp": "2010-10-27T06:13:47",
"content": "it doesn’t work on my iPhone… cause I don’t have one :)@trekeyus: nice one",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203506",
"author": "Spork",
"timestamp": "2010-10-27T06:32:14",
"content": "Same as how I used to bypass windows XP activation screen. It’s just a bug and really not a big one, if someone steals your iPhone, they can use a PC to get through your password screen. (ie recovery mode -> iPHUC -> remove “/mnt/mobile/Library/Preferences/com.apple.springboard.plist”)Physical access trumps all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203519",
"author": "TFk",
"timestamp": "2010-10-27T06:58:59",
"content": "@Pilotgeek: “So? On my Android, pulling the battery and turning it back on bypasses the lock screen.”Really? It doesn’t on mine – if I reboot it, it still asks for the passcode (well, joiny-dot combination) when I turn it back on, before it will let me do anything on the phone. And I have to put the PIN code in again when I do that.@Itwork4me: “…since your phones JBd…”They guy specifically says in the video that he has tested it on non-JBd devices as well.@MS3FGX: “…glitches like this can happen no matter who is writing…”I totally agree with you. I am worried that the locking feature can somehow fall back to the default caller app though – seems like they haven’t isolated the locking feature from the rest of the OS properly, in my eyes. Meh. It’s not like the other mobile OS’s haven’t had similar problems in the past (and probably will in the future).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203557",
"author": "kmatzen",
"timestamp": "2010-10-27T07:53:48",
"content": "Reproduced it on an iPhone 3GS.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203605",
"author": "Eric",
"timestamp": "2010-10-27T09:24:44",
"content": "3g 8GB 3.1.2 jb; works.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203648",
"author": "Paul",
"timestamp": "2010-10-27T11:55:24",
"content": "It could be feature added for medical purposes. To allow ER staff to gain access to ICE (In Case of Emergency) phone numbers. I am sure that there is a graph somewhere showing the direct correlation between rate of hospitalization and iDiots.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203663",
"author": "Loki",
"timestamp": "2010-10-27T13:30:46",
"content": "That isn’t a pound sign, it’s a hash.# – hash.£ – pound.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203675",
"author": "Andrew",
"timestamp": "2010-10-27T14:20:05",
"content": "Loki: quit your pedantry. “Pound sign” is completely valid terminology in the US (http://en.wikipedia.org/wiki/Number_signparagraph 2). The article even went out of its way to demonstrate it was the #.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203727",
"author": "Thor",
"timestamp": "2010-10-27T17:51:19",
"content": "@LokiLiving in a substandard third-world country doesn’t entitle you to change long standing naming conventions used by a civilized and superior country.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203748",
"author": "CG",
"timestamp": "2010-10-27T18:59:05",
"content": "Obviously, they are dialing wrong.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203764",
"author": "Jon",
"timestamp": "2010-10-27T19:59:08",
"content": "@Pilotgeek: “So? On my Android, pulling the battery and turning it back on bypasses the lock screen.”Looks like apple fixed that work around :O)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203805",
"author": "cocoa",
"timestamp": "2010-10-27T21:40:35",
"content": "It is like locking down menus on windows98 and you can still hack yourself a cmd shell :)Personally I never lock my phones because it’s only me whose gonna get annoyed from it. Who would use it anyway? If someone would steal it they could get around that lock anyways.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204071",
"author": "Phil",
"timestamp": "2010-10-28T09:25:41",
"content": "@Thor: Exactly, glad you agree. Though calling the US a third-world country is a bit harsh.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204144",
"author": "Tom",
"timestamp": "2010-10-28T12:24:23",
"content": "If the US switched to Metric it wouldn’t matter ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204439",
"author": "jo",
"timestamp": "2010-10-29T02:49:17",
"content": "Im Surprised apple hasnt come back saying “your typing it wrong!”but in fairness bugs exsist across platforms, but its how the company deals with it, when apple makes up stuff to cover it up is where i draw the line",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204527",
"author": "Gert",
"timestamp": "2010-10-29T09:30:55",
"content": "How is this not abject failure?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205332",
"author": "Preston",
"timestamp": "2010-10-30T19:02:51",
"content": "I can bypass the lock screen of my iPhone 4 by simply holding the home button until voice control pops up. From voice control I can call people and play music. 4.1 iOS not jailbroken. The posted method above works for me as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "212515",
"author": "thatmffm",
"timestamp": "2010-11-14T23:03:00",
"content": "I just stumbled on this post… just wanted to point out that if you use the “Android Lock XT” app off Cydia, it removes the emergency call option from your lockscreen, and pretty much renders that glitch a non-issue. I just hope you don’t need to call 911 quick. haha.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "321852",
"author": "jason",
"timestamp": "2011-02-03T05:59:07",
"content": "Wow, talk about weak security. Time to delete a bunch of pictures off my phone.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "329232",
"author": "Palaver",
"timestamp": "2011-02-10T18:09:29",
"content": "Apple fixed it. Does not work on iOS 4.2.1.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,349.064061
|
||
https://hackaday.com/2010/10/25/hacker-housing-rally-to-restore-sanity/
|
Hacker Housing – Rally To Restore Sanity
|
James Munns
|
[
"Hackerspaces",
"News"
] |
[
"colbert",
"dc",
"hackerspace",
"housing",
"lodging",
"Rally",
"sanity",
"stewart",
"washington"
] |
HacDC, Washington DC’s own hackerspace has been kind enough to
open their doors
(and floors) to fellow hackers planning on visiting DC this weekend for the upcoming
Rally to Restore Sanity
. They are taking registrations now, and space is limited, so act fast. They have a suggested donation of $20 a night, which will get you floor space and breakfast each morning, as well as the warm feeling of supporting a community based Hackerspace. Details can be found on their registration page, and please make sure you read the rules before registering. Thanks again to HacDC for supporting the Hacker community!
In other news, Hack a Day will be at the Rally, so keep an eye out for the writers wearing the Hack a Day shirts, as well as the
HackaDay Twitter
. If you get seen with one of us, you might just make it to the fan gallery. We will also be handing out some HackaDay Swag if you catch us soon enough on Saturday.
| 44
| 42
|
[
{
"comment_id": "202617",
"author": "Noooooo",
"timestamp": "2010-10-25T17:17:03",
"content": "Hack A Day, why in the world are you promoting political events? This is insanity. Please leave such nonsense behind. We Hack A Day readers aren’t interested in such things (at least not here). We can surf to the ends of the internet to find all the nonsense we need. Bits, bytes, and building blocks are all that we’re interested in. Please keep this a neutral place focused on our collective interest… and check the politics at the door.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202629",
"author": "James Munns",
"timestamp": "2010-10-25T17:40:20",
"content": "@Noooooo, All politics aside, we decided to share this because it is a wonderful example of the hacker community taking care of other hackers. I am sure the HacDC Hackerspace would welcome the community regardless of political beliefs.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202630",
"author": "CP",
"timestamp": "2010-10-25T17:40:26",
"content": "I disagree with Nooooooo. What nonsense: we’re not allowed to talk about a hackerly thing because it is related to a political event?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202631",
"author": "Yessssss",
"timestamp": "2010-10-25T17:41:31",
"content": "…because it’s not a political event. It’s a comedy event. Chill out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202632",
"author": "Bushi",
"timestamp": "2010-10-25T17:45:07",
"content": "The Rally to Restore Sanity is a neutral political rally. That’s the whole point.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202634",
"author": "Anon",
"timestamp": "2010-10-25T17:46:47",
"content": "Please keep HAD free of politics. It’s one of the few places on the internet that has stayed away from it, and it’s one of the reasons I continue to read HAD. Please don’t ruin HAD with this bullshit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202635",
"author": "Anonymous",
"timestamp": "2010-10-25T17:51:12",
"content": "Agreed, keep politics out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202638",
"author": "Bob",
"timestamp": "2010-10-25T17:56:43",
"content": "@Bushi, Glen Beck claimed his rally was neutral, too. It wasn’t, and neither is the “Rally to Restore Sanity”. When Beck says he’s just “Restoring Honor”, we know who he considers to be honorable and dishonorable. When Jon Stewart says he’s just “Restoring Sanity”, we know who he considers sane and insane.Just because a specific politician or party or philosophy is not mentioned by name, doesn’t mean it’s really neutral.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202643",
"author": "Really?",
"timestamp": "2010-10-25T18:02:14",
"content": "The Rally to Restore Sanity is not a neutral political rally. It is an anti conservative rally.Thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202648",
"author": "cpmike",
"timestamp": "2010-10-25T18:06:23",
"content": "personally I was very excited to see this posting. I was considering going to the rally but being unsure of where to stay, this is great community related news. Nowhere does the article promote anything political, besides stating that the HaD writers will be attending a public event together. Had YOU planned to go to the rally, wouldn’t you have appreciated being informed that a local hackerspace was organizing to help you out?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202659",
"author": "Scott Jaeger",
"timestamp": "2010-10-25T18:34:41",
"content": "This post is totally inappropriate. My finger is over the iGoogle Hack-a-Day delete button. I hate to push it because it is one of my favorite sites.There is nothing neutral about this rally.I supported Hack-a-Day last April Fool’s Day post. But the country is in serious trouble and tacitly supporting an extension of the Corbett mockery of the Congress is inexcusable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202663",
"author": "Steve",
"timestamp": "2010-10-25T18:49:45",
"content": "What a bunch of whiners! If you aren’t interested in the article then don’t waste your time by reading it and commenting on it.If I read and posted about every article I didn’t agree with that showed up in my feed reader I would never get anything done.This article is clearly related to hacking, and informs readers about a unique event that they can take part in.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202667",
"author": "Nemo",
"timestamp": "2010-10-25T18:57:26",
"content": "While I support the rally, I don’t support it appearing here on hackaday, even with the rationalization that it is newsworthy because it shows hackers helping other hackers. That in itself is not very newsworthy in my opinion, but that isn’t the point. This website is about human ingenuity, something everyone shares, it should remain politically neutral.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202670",
"author": "Colecoman1982",
"timestamp": "2010-10-25T19:00:35",
"content": "This is a hackerspace offering a service to the hacker community, a subset of which may find useful. This, absolutely, belongs here.Yes, we get it, some of you have opposing political viewpoints from those being pushed by the rally (or, at least, what you perceive the rally as standing for since it’s stated goals are, simply, to combat rabid extremism on both sides.) This post was handled in an extremely neutral manner. There is no heavy pro-liberal comments and no anti-conservative/tea party comments. If you people have such a problem with it, then the problem is with you and your thin skins for anything that even hints at disagreeing with your political views. That’s just sad.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202672",
"author": "metis",
"timestamp": "2010-10-25T19:03:21",
"content": "folks, irrelevant of how you feel politically, this announcement is for a fundraiser for a hackerspace.part of journalism is reporting on things that are happening in the field you’re working in. i’m sure if $hackerspace was opening it’s doors for a bbq competition or local make day no one would blink.if HAD feels that they will be served well by marketing themselves at that event it’s their prerogative to do so, and potentially alienate folks who disagree. the fact that you wish to disassociate yourself from someone with a potentially differing political view is inherently intolerant, and frankly mutual respect is pretty important in the hacker/maker community.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202684",
"author": "slacker",
"timestamp": "2010-10-25T19:29:26",
"content": "Wow, how did I know when I clicked through Google Reader that the comments would be full of whiners?Props to HacDC for opening their doors and helping their fellow hackers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202686",
"author": "FDP",
"timestamp": "2010-10-25T19:30:59",
"content": "Thanks for posting this HAD! Some of us appreciate the notice.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202693",
"author": "Cluttered",
"timestamp": "2010-10-25T19:37:45",
"content": "I for one am super excited to see HAD staff and fans at the rally!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202697",
"author": "redbeard",
"timestamp": "2010-10-25T19:40:51",
"content": "No matter what the opinion, I’m happy that it’s at least sparked debate. As the president of HacDC we actually had quite a lively debate about even doing this. In the end a) I’m happy we did & b) sad I won’t be around for the event. That being said, if you do come to town, check out some of the projects we’ve been working on. Like many of you, we’re high on the “fun stuff” priority and light on the “documenting the fun stuff” tip.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202700",
"author": "Bob",
"timestamp": "2010-10-25T19:45:12",
"content": "Isn’t calling people “whiners” contrary to the Rally for Sanity’s principle of “respectful disagreement”?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202703",
"author": "Pheathers",
"timestamp": "2010-10-25T19:53:00",
"content": "Oh pish and tosh.The fact that a huge number of people from this community are likely going to be there (I certainly am!), makes the HacDC story relevant.As for politics — the rally itself is one big political hack. With this event, Stewart et al. are making a direct effort to change the US political climate in a constructive way. Those of you looking to politicize this rally in traditional shrill terms clearly are missing the point, and that is most of us are just sick and tired of every damned thing being destructively politicized and would really appreciate it if you lot would just tone it down long enough to allow for a little reasoned debate to take root in place of all the useless screaming and spin that currently rule the day.Hacking isn’t limited to hardware.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202711",
"author": "slacker",
"timestamp": "2010-10-25T20:01:41",
"content": "@Bob, you know, you’re right. It’s not constructive. I apologize. It’s a shorter way of saying I know that there’s a whole segment of people for whom Stewart/Colbert’s message is just lost on, and that I was certain they would make themselves known in the comments. It’s a bummer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202716",
"author": "Bob",
"timestamp": "2010-10-25T20:25:05",
"content": "@slacker, saying that “there’s a whole segment of people for whom Stewart/Colbert’s message is just lost on” is itself condescending and is likely to provoke the angry responses Stewart/Colbert claim to want to reduce.I think Colbert is a very funny guy. But face it, his shtick is to ridicule a political group, and being totally fair about it is not his top priority. Colbert thrives on political conflicts as mush as Rush Limbaugh does.I know less about Stewart; I’ve never watched him.But to say that Stewart/Colbert’s message is “lost on” people is to imply that the only possible reason for people to disagree is that they’re stupid.Alas, there’s a lot of that attitude coming from liberals, and I say that as someone who is not a conservative and has no interest in defending them. I just think liberals bear more responsibility for the current climate than they care to admit.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202720",
"author": "Pheathers",
"timestamp": "2010-10-25T20:29:44",
"content": "@Bob — it’s not necessarily stupidity that makes someone unable or unwilling to “get” this message. Confirmation bias and entrenched views plague even the smartest of humans, and people generally don’t like to face up to their own irrationality, especially the smart ones.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202730",
"author": "Noooooo",
"timestamp": "2010-10-25T20:50:22",
"content": "Please let me reset this conversation and focus us back on the original point. Let’s begin with this language from Hack A Day:“…open their doors (and floors) to fellow hackers planning on visiting DC this weekend for the upcoming Rally to Restore Sanity…”This very specific language written in the post doesn’t at all read like HacDC is putting on a fundraiser as many of you have commented. It specifically sounds like support for a political event. In fact, if you read the HacDC sign up page, you’ll see that the only point of this offer is to provide sleeping accommodations to those going to the rally. Here is an excerpt of that language:“Thanks to Comedy Central, many of you may be headed to DC next weekend for the Rally to Restory Sanity/Keep Fear Alive. If you’ve been thinking about the trip, but worried you might not have a place to stay, HacDC — the capital Hackerspace — is offering some basic sleeping accommodations (breakfast provided) and a hackerriffic halloween party, along with other activities for visiting hackers. We’d be happy to host you and your hacker-friendly group.Crash space is in a separate part of the building so those wanting to sleep early won’t be kept up by the party. The suggested donation for people crashing at the space is $20/night and includes breakfast both mornings. Sleeping Space is limited so sign up soon.”It is important for the community here to understand that my comments have nothing to do, nor are they motivated by any political philosophy I may or may not engender. My motivation is that I am saddened that the first thing I read about today on Hack A Day wa–in essence–a political promotion (complete with notice of attendance by Hack A Day staff). Rally X,Y, or Z might as well have been mentioned, because the affiliation is not important. What is important is for me to convey to you that my comments are not politically motivated except to keep this a politics-free zone.Hacking is a hobby that gets me away from all the nonsense directed at us 24/7. It is a respite that I look forward to. Hack A Day has more often than not been a part of that respite–but not today.My specific intent in the first comment of this post was to make a plea to keep Hack A Day out of politics, no exceptions. Sadly, the resulting dialog has deteriorated into exactly that–a meaningless political argument.BBQs, educational events, and bake sales supporting a Hacker Space are just fine with me, as those are directly aimed at fundraising for a communal space where tinkering is taught and promoted. Those events are neutral, and don’t anchor onto any political event. I would love to see those kinds of things here.The Rally to Restore Sanity, however, is specifically a political event—regardless of how clever or not the event has been promoted and packaged. To me, that says that Hack A Day and HacDC are open to those espousing the same political views as those attending and organizing the rally, and in my mind, that has nothing to do with the purpose of a Hack A Day, Hacker Space, FabLab, Technology Center, or any other place dedicated to sharing information and education about bits, blocks, and the airwaves. “Hacking Politics,” as one commenter put it, is still politics.So, let me attempt to reset this controversy and re-focus it on my original plea: that politics, plain-and-simple, be kept out of Hack A Day and hopefully your local hacker spaces.Perhaps Hack A Day needs to post it’s own code of ethics for how it runs its own shop. This post may serve as the poster-child of what not to do in an open, community Hacker space—virtual or otherwise.Thank you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202734",
"author": "wtf",
"timestamp": "2010-10-25T20:54:24",
"content": "Seriously. This is as stupid as that April Fools gag telling people to make dual-male ended electrical cords.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202740",
"author": "P",
"timestamp": "2010-10-25T21:02:52",
"content": "News flash: everything is political. The computer you’re using to view this site, the data connection, ISP, web server software, etc. are all products of politics. The entire internet is a product of politics. So is the air you breathe and the water (or booze) you drink.Why does no one complain when HaD posts mention open source/free software? That area is heavily politicized — free software is political by its very nature, in that it subverts capitalism to some degree. How about when HaD posts about HDCP being cracked? No one complained then!That said:it’s funny how all the whiners commenting seem to be conservative blowhards angry that their pet right-wing nationalist “grassroots” group is being picked on.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202741",
"author": "P",
"timestamp": "2010-10-25T21:06:06",
"content": "btw: “hacker spaces” are also inherently politicalhope that helps :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202746",
"author": "Noooooo",
"timestamp": "2010-10-25T21:11:50",
"content": "@P I see I can’t reach everyone here. It’s sad that you can’t see my plea as an honest and unbiased request. Perhaps you aren’t able to believe that people don’t all want to be bothered with such things all the time. What you have exposed about yourself in your last comment is sad.If you are fundamentally unable to remove yourself from the political banter on occasion, please don’t yell it at people, in neutral places, who don’t want to hear about it.@Everyone else: This will be my last post on the subject. I have made my position clear. I leave it to the readers here to have an honest and open discourse about the direction of Hack A Day and whether or not there should be some test or guidelines or standard of conduct that a post must pass before going live.If, like me, you don’t want to see your favorite site get dragged into the political muckery, please have an honest discourse here and now, but leave when it is clear that Hack A Day cannot be a politics-free zone.Best,Nooooo",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "202765",
"author": "Caleb Kraft",
"timestamp": "2010-10-25T21:35:28",
"content": "@all,We’re not becoming a political blog. Some writers are going and we liked that this hackerspace was offering space. That’s it. That’s all.",
"parent_id": "202746",
"depth": 2,
"replies": []
}
]
},
{
"comment_id": "202757",
"author": "anonn",
"timestamp": "2010-10-25T21:24:57",
"content": "This wasn’t in any way political until you people started arguing about it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202769",
"author": "Trollicus",
"timestamp": "2010-10-25T21:45:35",
"content": "Politics on hackaday are usually the bitter Linux vs Microsoft or the Ipod vs Android variety. I agree that this “rally” is deliberately supposed to be a comedy event with a theme of silliness. So hakerspace is using all the publicity to help hackers. I have no problem with that.Hey Hackers are a group with some real public policy interests that seem to be ignored or at least not represented by Democrats Republicans or anyone else.I recently wrote both the Republican and Democratic candidate for my local district about provisions of ACTA and the DMCA that I oppose(and so would most of the people here I suspect).I received a reply from both that are almost Identical WORD FOR WORD!!! They Both seem to have the same author(the RIAA???)As a Hacker I’m not being represented by ANYONE, maybe WE should find some common ground for issues that we ALL agree on. Supporting other hackers is a good start. As long as no one brings up windows 7 mobile we should be ok.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202782",
"author": "P",
"timestamp": "2010-10-25T22:18:21",
"content": "@Nooooooi’m not yelling at anyone. this is text, on the internet. get a grip!also, your “plea” is a thinly veiled attempted at silencing criticism.you are what’s known as a “concern troll”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202792",
"author": "silent tone",
"timestamp": "2010-10-25T22:38:33",
"content": "Whining is one of the defining characteristics of a HaD post. Always somebody to tell the HaD staff what belongs on their site and what doesn’t. Feel free to not consume items that don’t interest you, just like you do all day, every day.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202795",
"author": "slinky",
"timestamp": "2010-10-25T22:51:46",
"content": "Thank you Hack-a-Day, for passing this information on! It certainly didn’t seem too politically motivated, and hey, it’s a rally to RESTORE SANITY! This is a good thing right? After all, much about hacking is about the FREEDOM to hack, much as this rally is about FREEDOM from irrational laws and policies passed by irrational lawmakers and promulgated by irrational media figures.To the nay-sayers: Did you happen to start a really cool hacker info-sharing site called “hack-a-day” back in the day? No? Well then tough luck!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202797",
"author": "smaddox",
"timestamp": "2010-10-25T22:56:23",
"content": "@TrollicusYou bring up a very important point: the major political parties do not support hackers. In fact, I would go so far as saying, they actively deter hacking. I don’t think this article was at all an attempt to promote one political view over another, but it does hint at the topic of politics. Sooo, I’m going to take this chance to comment..I agree with P, who said that everything is inherently political. “Politics” comes from the Greek word for citizen. It is a general term for describing the complex interactions between groups of people. As a haven for a specific group of people, HAD is by definition political.It is unfortunate that people think politics focuses on fiscal policy, health care, immigration, gun control, etc.. It’s why things like hacking get shoved to the side, or even worse – outlawed. I think that largely the media is to blame. But what can you expect – anytime something remotely political gets posted on a non-political blog people get up in arms. It seems to me that HAD would be the perfect place to discuss political movements that promote individual freedom – something that all hackers could support. But alas – we Americans would rather pretend that politics does not permeate everything we say and do.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202806",
"author": "Tony",
"timestamp": "2010-10-25T23:11:46",
"content": "Really? Calm down. I live near DC and had never heard of HacDC. (Never really looked) Glad they are helping out the community here. I will definitely support them in the future.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202809",
"author": "Jerror",
"timestamp": "2010-10-25T23:19:55",
"content": "I guess some people are offended that other people are offended because some people are offended by everything.Just in case it wasn’t that obvious… and hilarious, i thought Georgian argumentationI know I’m not the only one that has a little benign interest in just being among events like this- to take it all in; regardless of context and political alignment. It is possible some curious minds might want to have a look and listen to what other people think, ie. to formulate their own opinions by gathering information.It would be a terrible thing indeed if citizens of a country did not to participate in political events simply because they contributed to a media outlet, were members of a hackerspace, were hackers, were students of higher education and were on a path to expand their understanding- of all things- of peers in their generation.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202811",
"author": "Jorge",
"timestamp": "2010-10-25T23:20:38",
"content": "I’m actually Noooooo….IM UNBIASED, CAN’T YOU SEE?Now, everyone who disagrees with me needs to shut the hell up cause im right.IM UNBIASED!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202812",
"author": "dbear",
"timestamp": "2010-10-25T23:22:53",
"content": "“anytime something remotely political gets posted on a non-political blog people get up in arms.”There is a good damn reason for this. We are so tired of seeing political Bull everywhere else.When I go to a site like this I’m not looking for somebody else’s political views. I come here for good old politics-free homebrew hacking and not to hear what somebody else thinks about Pelosi or Palin. If I want politics I’ll go to Drudge or Salon.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202816",
"author": "Bob",
"timestamp": "2010-10-25T23:28:32",
"content": "@P writes: “it’s funny how all the whiners commenting seem to be conservative blowhards angry that their pet right-wing nationalist “grassroots” group is being picked on.”And it’s funny how all the personal insults (“whiners”, “blowhards”) are coming from the defenders of a rally that purports to favor ending personal insults.Hypocrisy in action?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202819",
"author": "Sitwon",
"timestamp": "2010-10-25T23:41:46",
"content": "@NooooooNot gonna get into details, but my insider opinion is that this was motivated by recent fundraiser discussions, not a desire to push politics on anyone.Also, there will be other events going on at HacDC this weekend if the rally doesn’t interest you. We have lasers and 3D printers if that’s more to your liking.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202845",
"author": "slinky",
"timestamp": "2010-10-26T00:54:38",
"content": "Uh, James (the previous commenter), are you affiliated with Hack-a-Day in any way? If not, then why not just STFU? James Munns is listed as an author here (with a good list of very appropriate articles under his belt), so ya, I’d say he’s “qualified to post” on HaD. You, on the other hand, are only “qualified to post” in the comments section.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "202855",
"author": "Caleb Kraft",
"timestamp": "2010-10-26T01:15:05",
"content": "@All,Comments have been disabled for this post. Discussion was unable to stay on the cool event that the hackerspace is doing.",
"parent_id": "202845",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,349.137734
|
||
https://hackaday.com/2010/10/25/halloween-props-this-drill-makes-your-head-spin/
|
Halloween Props: This Drill Makes Your Head Spin
|
Mike Szczys
|
[
"home hacks"
] |
[
"drill",
"exorcist",
"Halloween props"
] |
[Nollie551] sent us a demonstration of
his head spinning yard prop
. Adding a possessed child as part of your Halloween display is a nice touch. But when her head starts to spin (think:
The Exorcist
) as trick-or-treaters saunter by it should scare the life out of them. You can see that all it took is a jig to hold an inexpensive power drill in place. He didn’t include details of how this is hooked up but we think it would be a great way to use
that drill switch hack
that [Ben Krasnow] did a while back.
Join us after the break for some video.
[youtube=http://www.youtube.com/watch?v=9xLFJK0Uj68]
| 9
| 9
|
[
{
"comment_id": "202665",
"author": "macw",
"timestamp": "2010-10-25T18:52:17",
"content": "I don’t think this counts as a “hack” yet…it’s really just carpentry! If he included a system to make the head react to people walking by, or jitter the motor speed like that spider from a week ago, then we’d be talking ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202707",
"author": "Christopher Mitchell",
"timestamp": "2010-10-25T19:57:52",
"content": "Does this mean that the time I spun a CD on a dremel until it shattered due to constructive interference of vibration was a hack because I spun something with something else was a hack too? As the poster above said, it’s nice carpentry, but it’s not a hack.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202708",
"author": "mad_max",
"timestamp": "2010-10-25T19:58:33",
"content": "I like that you’re getting into the Halloween spirit, but this is kinda…unimpressive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202725",
"author": "zool",
"timestamp": "2010-10-25T20:36:52",
"content": "lol head stuck on a drill with the trigger slightly held downit’s a HACK!!111111 XD",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202758",
"author": "macw",
"timestamp": "2010-10-25T21:26:16",
"content": "@Christopher Mitchell — hey now, I didn’t say it was *nice* carpentry. Those are some ugly-ass joints. It’s just not a “hack” in the spirit of this site is all.Though it does get you thinking about how you could improve it to make it fit better here. How about putting a webcam in the eyes and hooking it up to a laptop running openCV, so that the head spins around and around until it sees a person then locks onto them and follows them around the room?Really, there’s just so much more that could be done here…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202870",
"author": "barry99705",
"timestamp": "2010-10-26T02:10:45",
"content": "Where’s the pump for the green pea soup?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202910",
"author": "nicco",
"timestamp": "2010-10-26T04:20:22",
"content": "Good job on the project and all that to Nollie. It might not live up to some peoples expectations, but if he is happy with it, more power to him.On the other hand, the spinning head has, in my opinion, always been the lamest “scary” effect. I thought Exorcist was going along really well, until the head spin. An impossibly gaping jaw would be scarier. Like a snake dislocating its jaws or something. I dunno, but spinning heads just doesn’t cut it for me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203269",
"author": "m,k12pickle",
"timestamp": "2010-10-26T20:00:27",
"content": "Its not the most hardcore hack i have ever seen but, i definitely used to build things like this, when i started out. Bravo!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203705",
"author": "Jake",
"timestamp": "2010-10-27T16:36:29",
"content": "A drill…. And a switch….",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,377,349.184336
|
||
https://hackaday.com/2010/10/25/avr-programming-02-the-hardware/
|
AVR Programming 02: The Hardware
|
Mike Szczys
|
[
"Featured",
"how-to",
"Microcontrollers"
] |
[
"arduino",
"ATmega168",
"Atmel",
"AVR",
"avr-gcc",
"avrdude",
"compiler",
"dapa",
"dragon",
"programmer",
"programming",
"stk500",
"usbtinyisp"
] |
You may be able to write the most eloquent code in the history of embedded systems but without a way to run it on the hardware it will be worthless. In this installment of the tutorial series we will:
Look at some of the available AVR programmer options
Place the microcontroller on a breadboard and connect it to a power supply and a programmer.
Use programming software to send some example code to the microcontroller
If you missed
Part 1
take a few minutes to review that portion of the tutorial and then join us after the break.
Series roadmap:
AVR Programming 01: Introduction
AVR Programming 02: The Hardware
AVR Programming 03: Reading and compiling code
AVR Programming 04: Writing code
Programmers
As I said before, if you want to get it on the chip you’ve got to have a programmer. There are a huge number of options, but I’ll cover a few of the easiest and least expensive. We are focusing on
In-System Programming
(ISP) which means that you can program the chip without removing it from the circuit.
DAPA Cable
A Direct AVR Parallel Access, or DAPA cable, is an incredibly simple and cheap programming method. You can build one very quickly for a few bucks worth of parts, but the convenience comes with a few gotchas. The first is that you must have a parallel port on your computer; something that modern laptop and some modern desktops don’t have. But if you’ve got an old PC around that has one this will get you up and programming in no time.
In fact, the first AVR prototyping I did was with one of these cables. That is, until I discovered another gotcha. This will only program low-speed chips. If you try to run the chip’s clock at full speed (by changing fuse settings… more in Part 3) you won’t be able to use a DAPA cable to talk to it any longer. There’s also the possibility of damaging your parallel port or worse if you do something wrong. But if you want to go for it anyway, here’s how I built mine.
It connects to a computer using a DB25 connector. As you can see in the schematic, I’ve used 1 kilo Ohm resistors on the Reset, SCK, MISO, and MOSI pins for current protection. I did not use a resistor on the ground pin. I used a piece of ribbon cable, soldering one end to each of the five signal lines shown in the schematic. On the other end of the ribbon cable I used a connector housing with six slots, filling one of them with a blank so that I could keep track of the signals. This is easy to plug into a pin header or connect to jumper wires as shown above. In retrospect it may have been a better choice to use a 2×3 IDC connector and route the signals using the
AVR ISP standard
(from
AVR: In-System Programming PDF
). If you go this route chances are you’ll upgrade before long so don’t agonize of the design details.
Arduino
I would be remiss to skip over using an Arduino as a programmer. They’re ubiquitous with the embedded systems crowd and if you don’t already own one, you can try to find someone to lend you theirs for a little while. All that is required is to write an AVR programmer sketch to the Arduino and make the programming connections. We’ll take a look at this method later in the post.
USBtinyISP
The
USBtinyISP
is an In-System-Programmer based around an ATtiny2313 that uses a USB connection (see where the name comes from?). It isn’t a bad choice for your first programmer. If you are confident in your skills you can build the circuit circuit yourself and use a DAPA cable to get the programming firmware onto the chip. Or you can just buy it from Adafruit Industries. But if you think you’re going to be serious about AVR development, you should consider shelling out the extra bucks for a professional programmer.
Professional programmers
The Ateml programmers are the gold standard. They offer something that none of the other hardware we’ve covered has, the ability to recover a chip that you’ve messed up. If you want to use the reset pin as I/O, you will need to use High Voltage Parallel Programming to talk to your chip. Even if you don’t
decide
to do that, at some point you’re going to screw up and you’ll need to recover a process, which helps offset the extra cost of a professional programmer. It is possible to use an Arduino for High Voltage Parallel Programming to recover your AVR,
but that’s another hack
in itself.
We use an
AVR Dragon
for pretty much everything. But
the STK500
is a very popular board even though you need a serial port to use it. It has chip sockets, buttons, and LEDs for on-board prototyping. The Dragon leaves options open with unpopulated socket footprints, and it uses a USB connection.
If you’re in this for the long haul there’s no substitute for one of these choices.
We should at least mention
the MKII
, a programmer that offers ISP in the same way that the USBtinyISP does, but also provides JTAG, debug wire, and few others. We have no experience with this unit so you’ll have to do your own research if you’d like to know more. As for the other programmers out there, use Google or check the comments to this post as people usually don’t like to keep their preferred programmer choice a secret.
Bootloader
A bootloader is not really a programmer, but a way to get around using one. A bootloader is a set of code already on your microprocessor. It handles basic input and output neccessary to write your code into the chip’s memory. The bad news is that they do take up programming space, but you won’t have to buy a hardware programmer.
Programming a chip with a bootloader on it is beyond the scope of this tutorial. But it’s not hard to learn to do. In fact, this is how it is possible to program an Arduino without a separate hardware programmer.
Setting up our test circuit
Enough talk, let’s build something! We need four things: A microcontroller, something to power it, some way to program it, and something to show us it’s working.
Hardware:
Solderless breadboard
Jumper wires
ATmega168 microcontroller
78L05 voltage regulator
100uf electrolytic capacitor
10uf electrolytic capacitor
LED
180 Ohm resistor (any resistor between 180 and 330 Ohms will work fine)
A programmer (we’ll show both a DAPA and an Arduino)
What we’re doing
In a nutshell, we’re going to blink an LED as our first embedded program. This takes a few components: a power supply, the microcontroller itself, and the LED and its current limiting resistor.
The power supply consists of a voltage regulator which will take an input voltage above 7v and output a constant voltage of 5V. In order to work correctly, this circuit requires two filtering capacitors. The capacitors act like storage tanks, absorbing small fluctuations on the power rail to provide a steady source of electricity to keep our microcontroller safe and happy.
As an output we are going to use an LED. We must include a resistor to limit the amount of current that will flow when the software lights it up. Without this current limiting resistor, current would flow at levels that are unsafe for the LED, the microcontroller, or both.
The circuit schematic
Above is the circuit we are using as an example. The a simple 5v regulator circuit using an LM7805 linear regulator and two filtering capacitors is on the left, separated from the rest by a dotted box. If you already have some type of regulated 5v supply save yourself some time and use that.
You may also notice that the chip in the schematic is labelled AVR-MEGA8. The ATmega168 that we’re using is pin-compatible with at ATmega8. That means that you can swap one for the other and all 28 pins will be where they’re supposed to be, so this will cause no issue.
It is a good practice to add a few components not seen here. There should be two 0.1 uF capacitors for
decoupling
; they filter out fluctuations on the power rails called noise. One between VCC and GND, the other between AVCC and AGND (as close as possible to the pins). There should also be a pull-up resistor on the reset pin with lets an incredibly small amount of current trickle into the pin at a 5V level. This the chip from resetting by accident when it’s floating (not connected so there’s no clear 0 or 5V value). I’ve omitted these parts for simplicity and it shouldn’t be an issue with this simple project. But as your projects get more complicated, neglecting these considerations will come back to bite you.
The circuit built on a breadboard
I started building the circuit by adding the voltage regulator to the breadboard. Then connect the ground leg to the ground rail on top of your breadboard, and the output leg to the voltage rail of your breadboard. I have also added two wires that I will eventually connect to the positive and negative terminals of a 9V battery.
It is important to read the datasheet for your voltage regulator (example:
LM7805
) to figure out which lead is input, ground, and output. Your regulator may look different from mine as they do come in different packages. In the image above, the input lead is on the left, the ground is in the middle, and the output lead is to the right.
Now I’ve completed the power supply by adding the 100 uF capacitor between the input leg and ground leg of the regulator, and the 10 uF capacitor between the output leg and ground leg. Pay careful attention to these capacitors, one lead should be marked as negative (a band with a minus sign) on the case of each capacitor. Before adding the microcontroller it would be a good idea to check the voltage output using a multimeter. Too much juice can destroy your new chip.
After checking to make sure I had a steady 5V source, then disconnecting the battery, I added the ATmega168 microcontroller to the board. Note that the dimple is pointing to the left. This is important, as
the standard orientation and lead numbering of a DIP package
shows that pin 1 is now on the lower left, letting us easily find the other pins that we need.
Power and ground have been connected to the chip as well. Pin 7 (VCC) and Pin 20 (AVCC) have been connected to 5V. Pin 8 (GND) and Pin 22 (AGND) have both been connected to ground.
The final step is to connect the LED to output 0 on Port D. Our schematic tell us that we want to connect the positive lead of the LED to Pin 2 on the ATmega168, and the negative lead should go to an unoccupied row on the breadboard (make sure you don’t attach it to Pin 1). LEDs usually have a small notch flattened on one side of the plastic case to denote the negative leg of the device. The final piece of the puzzle is to connect the negative side of the LED to ground by using our resistor.
In the image above I’ve hooked up a 9V battery , but nothing happened. That’s because there’s no firmware on the chip to make the LED blink yet. We’ll need to fix that in the next step.
Programming our test circuit
Check all of your connections one more time and let’s get ready to program the microcontroller.
Connecting to a programmer
You only need to make six connections in order to program our chip:
Voltage
Ground
Master In Slave Out (MISO)
Master Out Slave In (MOSI)
Reset (RST)
Slave Clock (SCK)
This is true for any programmer that is using In-System Programming. There’s even
a standardized 6-pin header
that I design into most of my circuits so that you can easily reconnect your programmer to a circuit board and update the firmware down the line. But for this example we’ll just use some jumper wires to make the connections. One thing to keep in the back of your mind is to only use one voltage source when programming. You should either disconnect the power to your circuit while programming, or do not make a connection to the voltage line on your programmer.
Connecting an Arduino as a programmer
Using your Arduino as a programmer is super easy. The first thing you’ll want to do is open up the Arduino IDE, and then open the example software: ArduinoISP.pde (in the examples/ArduinoISP folder). Flash it to your Arduino in the normal fashion. Now follow the directions for
targeting an AVR on a breadboard
(bottom of that page).
Important:
Choose one power source. That is to say, either connect the voltage on the Arduino board to your breadboard, OR connect the battery to the power supply we wired up. Doing both has the potential to damage your hardware.
Here’s how mine looked once I had it hooked up.
Now that everything is ready to go, jump to the next section: Flashing firmware with AVRdude.
Connecting using a DAPA cable
Depending on how you constructed your DAPA cable, it should be pretty easy to make the five connections we need. Notice that the DAPA cable doesn’t have a Voltage connection. The target processor must have its own power source (like the power supply we built on the breadboard) during programming. Here is what my DAPA cable looks like once connected.
If you’re unsure of the connection that need to be made, go back and compare the DAPA cable design to the circuit schematic. Match up our five connections: MISO, MOSI, RST, SCK, and GND.
Flashing firmware with AVRdude
If you did your homework from Part 1 of this series you should already have the cross compiler tools installed. First,
download the firmware package
and navigate to that directory in a shell, or at the command prompt. The following commands can be used on Linux and OSX systems to program the chip.
Arduino as the programmer:
avrdude -P usb -b 19200 -c avrisp -p m168 -U flash:w:main.hex
DAPA as the programmer:
avrdude -P /dev/parport0 -c dapa -p m168 -U flash:w:main.hex
AVR Dragon as the programmer:
avrdude -P usb -c dragon_isp -p m168 -U flash:w:main.hex
USBtinyISP as the programmer:
avrdude -P usb -c usbtiny -p m168 -U flash:w:main.hex
You can get help from the AVRdude program by running:
avrdude -h
That will print out a list of available commands, or you can read
the online documentation
.
Windows users will need to change the /dev/* portion of the command
to match your connection. You should find the
Windows page of the online manual
particularly helpful for this. Standard Windows port names include com0, com1, etc. for serial ports and lpt0, lpt1, etc. for parallel ports.
As for the other flags used in the programming commands above:
When using the Arduino as an ISP programmer you must specify the speed, using ‘-b’. That value is set in the Arduino sketch and should be 19200 by default.
You will always need to specify what kind of chip is connected to the programmer. Here I’ve used ‘-p m168’ for our ATmega168. Get a list of all compatible microprocessors by typing
avrdude -p ?
The same is true for specifying a programmer. You can change the ‘-p’ to ‘-c’ in the command above to get a list of programmers.
The final option in the commands we used tells the programmer to write (that’s the ‘w’) the file ‘main.hex’ to flash memory. Part of the command is used for many things, including changing the fuse bits on the chip. I’ll talk about this in Part 3 of the series.
Debugging
Your LED should be flashing away quite happily at this point. What’s that? It’s not? Time to start the real learning. Here’s a list to get you started:
Did you successfully program the chip? You should get the message: “258 bytes of flash verified” and “avrdude done. Thank you.”
If you had an error during programming, check first to make sure there is power going to your chip.
Try the programming command again using ‘-v’ in place of ‘flash:w:main.hex’. This will just attempt to talk to the chip instead of writing to it, and is very handy when working out programming bugs
Recheck your programming connections to ensure you’ve got the correct signals connected to the right pins
Make sure you have the correct port on the computer and that you have permission to use that port. Linux users may try talking to the chip with the -v flag as ROOT to discover if there is a permission problem. If this works you need to add your user to the group that has permission to access the port the programmer is connected to
If you did successfully program the chip you should recheck your hardware. Is the LED installed backwards, preventing it from lighting up?
Take a trip to Google and start searching… this usually plays a roll in the development process so don’t feel bad. A lot of folks have already experienced the trouble you’re having and they made it through okay in the end.
Conclusion
You’ve done it, your first embedded circuit is alive! For now it will just flash to let you know everything is working. But next time we’ll talk about how this was accomplished, what we can do to make it behave differently, and how to use the compiler to translate our code changes into a file that the microcontroller can run. Thanks for reading and we’ll see you back here for the next installment.
Follow Me
@szczys
Resources
Firmware package:
Package download
or
Github page
Atmel AVR
ATmega168 Datasheet
(PDF)
AVR dude online documentation
AVR In-System Programming Application Note
(PDF)
AVR ISP Programming Header:
| 67
| 50
|
[
{
"comment_id": "202502",
"author": "Akhil",
"timestamp": "2010-10-25T13:17:59",
"content": "great… waiting for the part three.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202543",
"author": "Panikos",
"timestamp": "2010-10-25T14:00:47",
"content": "Excellent. I always hope that HaD would have segments aiming for teaching from the bottom up.I wish I had read an article like this 1 year ago!Thank you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202545",
"author": "mindw0rk",
"timestamp": "2010-10-25T14:09:49",
"content": "I’d recommend the USBasp as a programming solution. It was the first programmer I built and I still use it for programing avrs. The downside is that you already need to get your hands on a programmer to flash your own programmer with the firmware.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202563",
"author": "aggaz",
"timestamp": "2010-10-25T14:54:39",
"content": "Thank you! This is just what I needed!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202564",
"author": "winston",
"timestamp": "2010-10-25T14:57:10",
"content": "This programmer:http://www.embedded-projects.net/index.php?page_id=165is also quite nice. I have used it before for avr programming and also for ARM debugging. You can simply flash different firmwares as needed. Openocd debugging with it worked fine for me :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202566",
"author": "ril3y",
"timestamp": "2010-10-25T14:58:58",
"content": "The only thing I would also mention is if you ever go to the Xmega avr chips then the TinyISP wont work for programming them. Avrdude supports the PDI programming method that these uC’s use. However you need to use something like the AVRISP MKII ($30) mouser. Also to note is there are many clones floating around which prolly will do fine. However if you get the Atmel ones they get firmware updates etc from avrstudio (windows only).-ril3y",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202569",
"author": "MrBubbles",
"timestamp": "2010-10-25T15:11:46",
"content": "really awesome articles, I think series like this make Hackaday even more awesome!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202570",
"author": "Brent",
"timestamp": "2010-10-25T15:18:42",
"content": "I haven’t worked with the Atmel AVR since 2006 or so, but the in-circuit debuggers are worth every penny if your time has any value.That means the AVRdragon or the MKII (along with the STK500 if you need a dev board to get started), or maybe the equivalents from Olimex.Everything else above is greasy kid stuff. If your time is worth money, being able to recover a chip you’ve locked is not a “nice-to-have” or something you spend weeks on a science fair project to do yourself with an Arduino, for example.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202571",
"author": "Kendall",
"timestamp": "2010-10-25T15:38:56",
"content": "Looking at Digikey to purchase the components and am overwhelmed with the variety of different options available for the capacitors and resistors and such. (Is there a better site?)Can you provide more detailed information on the components? Please include the pull-up resistor values as well as the decoupling caps.Should I purchase more of these components for future projects/tutorials? I figure that I might as well save on shipping costs and purchase everything at once.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202573",
"author": "cde",
"timestamp": "2010-10-25T15:43:53",
"content": "So the Atmel chips are SPI, low voltage programmable from the factory? That sounds awesome. Does it use actual SPI, or is there a difference? Sounds like you should be able to program one from a different kind of device, like a bus pirate or and MSP430 in spi mode >:DMicrochip could learn from them. The need to program with a High Voltage programmer before you can use a low voltage one is stupid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202574",
"author": "Shorty",
"timestamp": "2010-10-25T15:47:14",
"content": "@Mike Szczys,This is great, but you are driving me a bit mad with using Red wire for the AGND & VCC; and Green for AVCC & GND. Why not stick with Red wires for any positive voltage and Green for ground?For the newbie to electronics, mixing up the colors may add to the headaches.Also, showing the VCC connecting to AVCC and GND to AGND may help too.If you decide to swap out the wires so the colors match, feel free to delete this post as it won’t be relevant anymore.Thanks for everything!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202586",
"author": "Trollicus",
"timestamp": "2010-10-25T16:02:53",
"content": "KendallFor most basic components (resistors capacitors diodes transistors) I would recommend to the beginner to get a fair supply by buying bulk assortments from surplus outlets. All electronics, Skycraft etc. You should also look for local surplus electronics. When I lived in Ohio We had Debco in Cincinnati and Mendelsons in Dayton.This is especially true for resistors as they are cheap.To get your lab started:Get a bag/box of 1/4 W through hole type assortment of resistors.Ditto for ceramic capacitors.A few good electrolytic caps of small often used values.Transistors such as N2222, 3904/3906 etc in TO-92 packages are cheap and used a lotDiodes 1n4001-4003 (rectifier) 1n914(switching) 1n58xx(shottkey)Voltage regulators 7905(5v) etc LM317(adjustable)Some assorted op-amps if you can find them cheap.Some 555’s and some CMOS 555’s for inverters!Large caps IC’s and such I buy as needed but usually buy extra if I find a deal.Inductors I usually buy as needed unless I find some good ones I like for cheap then I stock up. Sometimes I make my own.I can’t tell you how many times a project has been held up because I didn’t have a component and had to order and wait. As your supplies grow this becomes less of an issue. Fortunately for us electronics guys our parts are tiny so storage isn’t a problem.Hope this helps",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202587",
"author": "Bogdan",
"timestamp": "2010-10-25T16:03:02",
"content": "@cde, yes all(except really small ones) are SPI programmable at low voltage. The good thing is that all chips have spi. And yes, you could program a device from something else. In fact, i know somebody who does this.You only need to use high voltage/parallel programmer if you disable the spi programming ability. A while ago you had to set the enable on the fuse each time you programmed the device, and people forgot and disabled it. Now most programming software puts it automatically so you don’t have to worry.@Brent is very correct. One should have some sort of debugging tool.@everyone, the usbasp is a good programmer, i do recommend it too.Good luck!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202589",
"author": "Mike Szczys",
"timestamp": "2010-10-25T16:05:50",
"content": "@Kendall: You’re right… selecting parts can be quite overwhelming. Know this: there’s a lot of wiggle room for most of these parts. In fact the datasheet for the voltage regulator recommends different capacitor values than I use but you’ll see that 100uf and 10uf are pretty common in power supply design like this one.As for pull-up resistors and decoupling capacitors. I usually use 4k7 (that’s 4700) ohm resistors as pull-ups. I use 0.1uF capacitors for decoupling and I’d recommend getting at lot of these (at least 25 at a time). You need them for pretty much ever IC you use. So if you have 3 I2C devices that you’re hooking up in a project you’ll probably need at least one for each of those chips.Maybe we need to do a tutorial on choosing parts… for now search around and see if someone else has already written one.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202596",
"author": "Trollicus",
"timestamp": "2010-10-25T16:21:11",
"content": "Oh, I almost forgotCrystals! When I order say some AVR’s from digikey I’ll order the crystals at the same time. I know I’m going to run them at X MHz so I’ll get them. I also have a few of the “magic numbers” for RS232 communications.Good suggestion from Mike Szczys for the decoupling caps. Decoupling is something beginners often forget that will cause headaches. like leaving a reset pin unconnected(I have never done that)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202604",
"author": "Abbott",
"timestamp": "2010-10-25T16:42:53",
"content": "Good article. I highly recommend the AVR ISP MkII though. It’s relatively inexpensive, premade, works very well, and has a couple status LED’s to at least let you know what might be going on at times when something wont run (as long as it’s programmer related)One really doesn’t need a debugging platform, I haven’t ever used one. Though it might help solve a few headaches sometimes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202633",
"author": "kepler",
"timestamp": "2010-10-25T17:46:02",
"content": "I apologize for the noob question in advance. How are the .hex files generated? If I write the code in the Arduino IDE and save it, how do I obtain the .hex file later?Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202649",
"author": "Mangor",
"timestamp": "2010-10-25T18:09:11",
"content": "Great work, can’t wait for the next part.It’s the first time I’ve got my atmega8 working because I had the wrong DAPA cable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202652",
"author": "Gdogg",
"timestamp": "2010-10-25T18:13:03",
"content": "Nice.Any interest in doing a PIC series?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202657",
"author": "mk",
"timestamp": "2010-10-25T18:23:54",
"content": "With arduino, would it be possible to just remove the chip from the board, and insert another one (with a preloaded bootloader) to program it with your code?I already have a Duemilanove, but I want to buy an RBBB, and was wondering if it’s possible to use the Duemilanove to program the RBBB’s chip.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202662",
"author": "Tiago",
"timestamp": "2010-10-25T18:48:55",
"content": "Yes you can even use the arduino as an ISP programmer loading the arduino-ISP sketch and use i as a ISP programmer.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202671",
"author": "Reggie",
"timestamp": "2010-10-25T19:02:19",
"content": "Meh, sort of nice article but no mention of using an FTDI breakout/cable as an ISP programmer :/ Same method can be used to program *ANY* atmega chip via an arduino and the X3 pin header.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202678",
"author": "Sal_The_Tiller",
"timestamp": "2010-10-25T19:13:19",
"content": "First off, this is a great tutorial series, I cannot wait until part 3.Second, can anyone point me to a tutorial that covers the finer points of power supply design? Like choosing a regulator and filter caps.Third, Kepler, you usually write the code in another IDE and compile it using avr-gcc (I think), but to get a .hex from arduino:1.) Make sure that you’ve set the board (Tools -> Board) to something matching your AVR.2.) Load up your sketch and, while holding down the SHIFT key, press the play button at the top of the Arduino IDE.3.) Look in the output pane at the bottom of the IDE. One of the last few lines should be something like ‘/var/folders/qg/qg3jOUWGFLCJ6ikojIjVHk+++TI/-Tmp-/build1478307508853060821.tmp/ArduinoISP.cpp.hex ‘. This is your .hex file!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202679",
"author": "Sal_The_Tiller",
"timestamp": "2010-10-25T19:16:11",
"content": "@mk:Yes, as long as both boards have the same crystal.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202709",
"author": "signal7",
"timestamp": "2010-10-25T19:58:39",
"content": "I have the AVR MkII programmer/debugger. Though the article above only makes cursory mention of it, I can tell you that it’s the cadillac of programmers and costs similarly. It’s probably the most expensive option out there, but the cost is easily offset by the fact that it does *everything*. It comes with adapters for in-system-programming, JTAG, a replacement connection cable, and some very terse instructions on what all the little doo-dads in the box are for. One thing that I appreciated was that it came with a ribbon cable break-out adapter that allows you to connect to your programming pins even if they aren’t even located near each other. For instance, you can have separate test pins located all over your project for reset, miso, gnd, mosi, etc and they don’t have to be in a 2×3 6-pin header. Sometimes this makes board layout much easier at the expense of having to carefully connect up each individual pin. Furthermore, the height of some nearby components sometimes interferes with connecting the standard ISP connector (d’oh!), so this gives you a way to work around that limitation.Overall, if you can afford it (about $300 or so), I would highly recommend it. There’s no substitute for being able to actually debug your program via JTAG on the actual hardware, imho.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202717",
"author": "Malte",
"timestamp": "2010-10-25T20:26:07",
"content": "You should use a 100nF ceramic capacitor between the VCC an GND lines. Always! Even in a breadboard design. I know, in most cases it’ll still work, but leaving them out can cause unpredictable errors, which can be frustrating to debug.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202791",
"author": "mk",
"timestamp": "2010-10-25T22:36:27",
"content": "@Sal_The_Tiller: why do the boards need the same crystal? (apologies for the newb question)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202862",
"author": "Sal_The_Tiller",
"timestamp": "2010-10-26T01:52:29",
"content": "@mk: If you program an AVR while it’s running at 16MHz, and then place it in a board where it runs, say, 8MHz, it may not run as designed. As long as both boards are running at the same speed, things should work out fine.And don’t worry about being a ‘newb’. Everyone has to start somewhere. I know what I know because I asked, and the people I asked learned from their own experiments and research, or by asking others.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202878",
"author": "Jacob",
"timestamp": "2010-10-26T02:34:50",
"content": "Will this same tutorial work on the atmega320?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202879",
"author": "Jacob",
"timestamp": "2010-10-26T02:35:15",
"content": "By atmega320 I meant atmega328. Oops.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "202891",
"author": "cgmark",
"timestamp": "2010-10-26T03:41:24",
"content": "Might be good to cover the concepts of sink and source to the tutorial . People need to know the difference and what it means before they start connecting anything more than LED to pins. People just starting that confuse the sink/source meanings have destroyed quite a few ic over the years.For parts I would add , the 741 op amp, cheap and versatile. CD4011 – lots can be done with these, 2N4891 UJT is a good part to have to or another UJT. All sorts of things can be made with them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203044",
"author": "Ixar",
"timestamp": "2010-10-26T10:15:14",
"content": "Wonderful introduction !That’s what I always to make my first steps ;)Thank you !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203086",
"author": "anthonyn",
"timestamp": "2010-10-26T12:44:52",
"content": "@singal7.i think uve confused the avr isp mkii for something else.$30 and only 1x ribbon cable.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203122",
"author": "Rob T.",
"timestamp": "2010-10-26T14:32:33",
"content": "A product previously on Hackaday, the new DangerousPrototypes Bus Pirate, makes a good AVR programmer. AVRdude 5.8 and later supports it.avrdude -c buspirate -P comX …http://dangerousprototypes.com/docs/Bus_Pirate_AVR_Programming(I don’t work for dangerous prototypes, I’m just a user)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203132",
"author": "www2",
"timestamp": "2010-10-26T15:01:51",
"content": "can some one reupload this dile AVRtut_pt2.zip",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203204",
"author": "Sean",
"timestamp": "2010-10-26T17:54:21",
"content": "Can i use an AVR Dragon with Mac OS X?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "203293",
"author": "craphead",
"timestamp": "2010-10-26T20:35:42",
"content": "just ordered the chip and some aditional stuffcant wait to get the parcel…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "204597",
"author": "Matt",
"timestamp": "2010-10-29T12:05:56",
"content": "I got it working at one point, and then tried to reconfigure a few things and I messed it up.Is it normal to have a few retries when it’s writing to the flash memory? I’m using the USBTinyISP, the first time it fails writing, it says that the pipe is stalled, then I get “1 retries during SPI command” a few times and then finally the writing goes to 100%.I’ve broken it down and put it back together and now I get a verification error: first mismatch at byte 0x0000 0x0c != 0x04.I had this working great at one point, but I can’t figure out where I went wrong.Thanks,Matt",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205147",
"author": "Tim",
"timestamp": "2010-10-30T13:41:42",
"content": "@RobT: I second the Bus Pirate suggestion! (Can’t believe it wasn’t one of the options mentioned in the tutorial!)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205721",
"author": "wouter",
"timestamp": "2010-10-31T10:05:59",
"content": "were is part 3 staying?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "205895",
"author": "George Johnson",
"timestamp": "2010-10-31T18:07:53",
"content": "A red wire for the ground connection?? Tsk, tsk…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206195",
"author": "Michael Dillon",
"timestamp": "2010-11-01T13:49:47",
"content": "@ Mike SzczysThanks for this great series, I’m a long time programmer, and this was just the thing to get me to try embedded stuff.Just one issue with the post from my experience while following thedirections to the T. Im using an intel imac w/ snow leopard, and an avr dragon.When connecting the ISP header from the dragon to the chip, you MUST connect the VCC line. Otherwise the dragon responds that the target isn’t powered up. It uses the VCC line to measure and see if it has the correct voltage.Other than that thanks so much for the series, can’t wait for the next bit, I’ve already gone ahead but I definitely will check back for part three.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206513",
"author": "fitting",
"timestamp": "2010-11-02T06:18:36",
"content": "I’m having a problem. I’m trying to use the arduino as the isp, and when I type the command given above, I get an error saying “ser_open(): can’t open device “usb”: the system cannot find the file specified”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "206666",
"author": "Mike Szczys",
"timestamp": "2010-11-02T16:08:52",
"content": "@fitting: AVRdude can’t find the Arduino. Change the ‘-P usb’ part of the command to the port the Arduino is connected to.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "207839",
"author": "scyther",
"timestamp": "2010-11-05T00:41:08",
"content": "hey guys can any one of you tell me on what basis the value of the filters(capacitors) are taken ???thanks in advance",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "210237",
"author": "Einomies",
"timestamp": "2010-11-10T02:05:34",
"content": "I spent a whole evening on debugging the thing, even running avrdude reallly slow with -vvvv -i 10000 and LEDs on the data lines to see what’s going on.I just couldn’t get the PC to read back the data from the chip, until I finally went to the BIOS settings and changed the printer port mode from ECP+EPP to SPP, and then it worked.To test this condition, short MISO and MOSI together and see if avrdude gets the same thing back as it’s sending. If it sees just FF or 00 it might be your printer port.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217362",
"author": "Haluzak",
"timestamp": "2010-11-23T23:37:49",
"content": "Hi, thanks for awesome article! I always thought this kind of stuff was way to complicated for me but you make it sound quite straightforward.Though i have a noob question:I looked up ATMEGA168 on the web of the store closest to me and I saw they have three versions:ATMEGA168-20AU, ATMEGA168V-10AU and ATMEGA168-20PU.The only difference in the description is that the first two are “TQFP-32” while the third is “DIL28”, which means nothing to me. Does it matter which one i get?Cheers!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "217792",
"author": "Shorty",
"timestamp": "2010-11-24T17:44:20",
"content": "To Haluzak,DIL = Dual In-Line. Synonymous with DIP (Dual In-Line Package). This is the one you want. It means it has through hole (sometimes noted as T/H or THT{through hole technology). The others are surface mount packages (SMT or SMD).The -10 or -20 are just the max speed in MHz the chip can perform at.http://tinyurl.com/28hezpfAsk for USPS shipping as it weighs next to nothing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "291399",
"author": "Abhay",
"timestamp": "2010-12-27T17:35:55",
"content": "hello,i have made the parallel port programmer ,connected the circuit as shown .i have also installed winavr on windows xp but i don’t know how to compile and download the file on to the device…. i had tried to use pony prog to download the file onto the chip from the main.hex file given in the part 2 files and also tried making the parallel port as ecp in bios settings",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "291614",
"author": "Lenny",
"timestamp": "2010-12-28T02:54:02",
"content": "having problems :-(I’m using an AVR Dragon on OSX.. I checked the connections and pins 10 times… I’m getting the following error:avrdude: Device signature = 0x000000avrdude: Yikes! Invalid device signature.Double check connections and try again, or use -F to override this check.NOTE: I’m using a 328 instead.. but I checked the datasheet and the pinout is the same… Any advise?Here is a screenshot of my terminal output and my wiringTerminal Screenshot:http://itslennysfault.com/stuff/AVRIssue.pngwiring photo:http://itslennysfault.com/stuff/AVRIssueWires.jpgAlso, to further test the wiring I tried disconnecting the VCC wire from the ribbon cable and I got this error.. which seems to say it’s hooked up correctly (in my mind)?http://itslennysfault.com/stuff/AVRIssue.pngAny help would be GREATLY appreciated.. thanks",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "3057786",
"author": "Johnny Quest",
"timestamp": "2016-06-17T09:56:51",
"content": "If you are working with a “new” ATmega328, the factory default fuse settings are for the internal 8MHz oscilator with a divide by 8 prescaler, making your MCU clock 1MHz. You’ll need to use a lower bitrate with the AVR DRAGON and AVRDUDE. Try this:avrdude -p m328p -c dragon_isp -B 200kHz -U flash:w:[file_name].hexThe “kHz” IS CASE SENSITIVE.You’ll need to reprogram the fuses for a “new” ATmega328,. To set them to be “ARDUINO compatible”, use AVRDUDE with your AVR DRAGON (or USBtiny or USBASP, etc.) like this:avrdude -p m328p -c dragon_isp -B 200kHz -U lfuse:w:0xff:m -U hfuse:w:0xda:m -U efuse:w:0x05:mI have an AVR DRAGON and have been using it since about 2006. It’s great for programming and debugging via DEBUG-WIRE or JTAG. JTAG is much faster to debug with and DEBUGWIRE has left my ATmega48/88/168/328’s in a state of being unable to program via ISP because DEBUGWIRE disables the SPI interface. AVR STUDIO resets it when the debugging session is ended but sometimes AVR STUDIO crashes and leaves the MCU with BOTH SPI and DEBUGWIRE interface disabled. That’s when HVPP (or HVSP for ATtiny85, etc.) comes to the rescue.If the SPI interface is disabled and the DEBUGWIRE interface is still enabled, newer versions of AVRDUDE will recognize this and TEMPORARILY switch to DEBUGWIRE mode to program so that you can reprogram the fuses. A good source for an online AVR fuse calculator ishttp://www.engbedded.com/fusecalcI trust this is helpful.Peace and blessings,Johnny Quest (and Bandit)",
"parent_id": "291614",
"depth": 2,
"replies": []
}
]
}
] | 1,760,377,349.335646
|
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