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2017-03-01T21:57:17.113 | <p>No, you would not be able to reset a breaker. Their "smarts" are for monitoring the panels and breakers, not operating them.</p>
<p>It would be a huge safety issue if homeowners could remotely reset breakers. Breakers pop for a reason - there's an unsafe condition nearby. But if you could reset the breaker from a... | |smart-home| | Can I reset breakers from my computer with the Schneider Smart Panel? | 1155 | <p>I've been looking into <a href="http://www.schneider-electric.com/b2b/en/products/product-launch/smart-panels/overview.jsp" rel="noreferrer">Schneider smart panels</a> recently for home monitoring. From what I'm reading, it appears that they have the ability to monitor your home's electric usage on all the various ... |
2017-03-03T17:06:44.980 | <p>You can press the <a href="https://www.amazon.co.uk/gp/help/customer/display.html?nodeId=201602230" rel="nofollow noreferrer"><strong>microphone on/off button</strong></a> on the top of your device to disable the microphone before you go to sleep. Here's what it looks like for the Echo Dot:</p>
<p><img src="https:/... | |alexa|amazon-echo| | Keep Alexa from responding when I'm talking in my sleep | 1164 | <p>If I'm in a private meeting at my home, I don't really want Alexa piping up with her idle chatter if I or someone else accidentally says the wake word.</p>
<p>Equally, if I'm talking in my sleep (which I do a lot of), I don't want to accidentally wake up Alexa and disrupt my sleep.</p>
<p>Is there a way to silence... |
2017-03-04T13:59:59.843 | <h2>As a consumer</h2>
<p>Your options are often quite limited as a consumer, but you can minimise your risks in a few ways through carefully selecting the products you use and how you connect them.</p>
<h3>Check what happens when your device loses Internet connectivity</h3>
<p>Usually, you can just do a quick Googl... | |smart-home|amazon-s3| | How can I avoid my IoT devices breaking when cloud services go down? | 1168 | <p>Recently, Amazon S3 <a href="http://www.theverge.com/2017/3/2/14792442/amazon-s3-outage-cause-typo-internet-server" rel="noreferrer">had an outage</a> which caused lots of web services to go down, including <a href="https://ifttt.com/" rel="noreferrer">IFTTT</a>, which is often used to link IoT devices together (e.g... |
2017-03-05T14:23:50.600 | <blockquote>
<p>...double the costs for a provider, making it technically infeasible.</p>
</blockquote>
<p>Doubling costs isn't really "technically infeasible", it justs make the situation more expensive. However, it's not really that bad.</p>
<p>I work for a service that rents dedicated hardware at three differen... | |cloud-computing| | How can IoT cloud services be made more reliable without excessive cost? | 1173 | <p>In <a href="https://iot.stackexchange.com/a/1169/12">one of my previous answers</a>, I mentioned that when designing a cloud service to connect to IoT devices, it would be best to make the servers redundant in some way so that if one data centre or server fails, the whole system still works.</p>
<p><a href="https:/... |
2017-03-07T06:34:10.393 | <p>There are many Android Modules based on LTE SOC like Qualcomm MSM8909 and Mediatek MT6735 MT6755 etc.</p>
<p><a href="http://www.new-mobi.com/product/product.php?lang=en&class1=44" rel="noreferrer">NewMobi</a> has a range of modules.</p>
| |microcontrollers|mobile-data| | Why don't we have more 3G+ modem options available? | 1181 | <p>Spiritually similar to the question here <a href="https://iot.stackexchange.com/questions/943/embedded-modem-options">Embedded modem options</a></p>
<p>Why is there such an enormous barrier to getting into something like a Snapdragon 410 with onboard LTE? After extensive research, LTE-equipped SoCs are everywhere,... |
2017-03-07T17:24:50.840 | <p>Sorry for the late reply. It turns out the problem was configuration related. I was using a 10k ohm resistor and I should have been using a 330 ohm one. The issue, in my opinion, stemmed from some decently confusing images in the Android Things "Getting Started" guide and the fact that the Raspberry Pi is more popul... | |android-things|intel-edison| | Android Things: GPIO button/switch handler only responds once | 1183 | <p>I am working through the tutorial for the Android Things SDK and I have the following set up:</p>
<p><a href="https://i.stack.imgur.com/tIUVI.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tIUVI.jpg" alt="pictures showing the Edison and its connections"></a></p>
<p>I hooked up the hardware via ... |
2017-03-07T18:54:08.183 | <ol>
<li><p>In addition to very nice discussion above, you can be own security expert starting with <strong>nmap</strong>, flagship tool from <a href="https://nmap.org" rel="nofollow noreferrer">Insecure.Org</a> so you can perform basic scan of target device(192.168.1.1) with simple command: </p>
<p>[nmap -A -T4 192.... | |smart-home|security|routers| | How do I protect my home from IoT devices being compromised and being used for DDoS attacks? | 1184 | <p>I am trying to understand the vulnerability of my home IoT devices. From what I understand, the big DDoS last year was caused by compromised IoT devices with generic or default usernames and passwords.</p>
<p>All my IoT devices are behind my firewall (like my thermostats - Honeywell).</p>
<p>They connect to the in... |
2017-03-08T12:56:47.153 | <p>I finally found <a href="https://sonyarouje.com/2016/03/15/mqtt-communication-with-arduino-using-esp8266-esp-01/" rel="nofollow noreferrer">a tutorial by Sony Arouje</a>. As it turns out I had to completely abandon manual sending of esp commands and had to use the library (WiFiEsp.h). Hint...It's better!</p>
<p>Tho... | |mqtt|esp8266| | How to use MQTT on Arduino which uses serial com to send AT commands to ESP8266 | 1190 | <p>I just started looking into MQTT protocol.</p>
<p><strong>Situation</strong></p>
<p>In my college project, currently, I use Arduino as main MCU and do every work in that and use Serial Comm. to send AT commands to esp8266 (for HTTP requests, to run scripts on server etc). I basically needed to push some data(from ... |
2017-03-09T08:41:31.397 | <p>The model that IoT Hub connected devices use is that they will never accept incoming connections. IoT Hub devices never act as a 'server', and this is a crucial part of the security model in Azure IoT. The definitive model on this is encapsulated in Clemens Vasters' <a href="https://blogs.msdn.microsoft.com/clemensv... | |hardware|communication|aws-iot|microsoft-windows-iot|azure| | How does an Azure IoT Hub interact with Embedded/IoT devices? | 1194 | <p>I am working on the Azure IoT platform, and I understand how devices send data to the IoT hub (if I am not wrong, It is just web service call or something similar to that).</p>
<p>But I wonder how the IoT hub sends Data/Command/Input to the devices, because we are not working on the IoT hub for Device communication... |
2017-03-09T14:07:22.870 | <p><sub>N.B.: Including this answer here in hopes that it helps someone else.</sub></p>
<h2>Yes, it's actually quite simple.</h2>
<p>The issue is not so much with the operating system as it is that mydlink.com has not officially supported the Ubuntu operating system. Therefore, all that is necessary is to fake your us... | |digital-cameras| | Access D-link webcams on Ubuntu | 1196 | <p>I am the system administrator for some friends who have a couple of web-cams for professional surveillance at a small commercial plant. The cameras are D-Links from the DCS series.</p>
<p>Currently, they are accessing them through the Mydlink portal. This works fine <em>(tm)</em> most of the time, unless you try t... |
2017-03-10T22:02:47.510 | <p><a href="https://developer.amazon.com/public/solutions/alexa/alexa-skills-kit/overviews/understanding-custom-skills" rel="nofollow noreferrer">Custom skills</a> can capture text and send them to your Skill's API.</p>
<p>If you're not completely familiar with how Alexa Skills work, here's a brief summary:</p>
<ul>
... | |alexa| | How does one capture the recognised text from Echo? | 1198 | <p>I know that some skills can capture spoken text, such as when adding to to-do lists and shopping lists, and third party skills can also do this, eg. <a href="https://smswithmolly.com/" rel="noreferrer">SMS with Molly</a>.</p>
<p>So, how do they do this? Is there an API call that captures the recognized text and st... |
2017-03-11T09:01:57.617 | <p><a href="https://i.stack.imgur.com/89mxh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/89mxh.png" alt="Configuration that worked for me"></a></p>
<p>Okay found the solution.</p>
<ol>
<li>Firstly I think the detected info block tells the flash size. In Snap it could be seen as 8MBit.</li>
<li>T... | |esp8266| | Can't Flash ESP8266 latest firmware, says "Fast Flashing error" and "Invalid head of packet(' ')" | 1199 | <p>I can't figure out how to flash the firmware found on <a href="http://www.electrodragon.com/w/ESP8266_AT-Command_firmware" rel="noreferrer">http://www.electrodragon.com/w/ESP8266_AT-Command_firmware</a>. I am using <code>ESP8266 Download tool v3.4.4</code>. When I am adding a firmware in download path it goes on til... |
2017-03-12T08:35:15.470 | <p>Set your smartwatch alarm to snooze every 5 minutes.</p>
| |smart-watches| | Which smartwatches have autorestart timers? | 1203 | <p>Please advise of</p>
<ol>
<li>any smartwatches that have <strong>timers</strong> that <strong>autorestart features</strong> namely where dismiss and reset are in one swipe and swipes are required</li>
</ol>
<p>or</p>
<ol start="2">
<li>how certain smartwatch <strong>alarms</strong> can achieve such.</li>
</ol>
<... |
2017-03-12T10:06:32.267 | <p>Starting from 1.5.1 the windows package support websocket, see changelog <a href="https://mosquitto.org/blog/" rel="nofollow noreferrer">https://mosquitto.org/blog/</a>
You have just to edit mosquitto.conf file, specify to use the websocket protocol by adding "protocol websockets" (see definition around line 145) an... | |mqtt|mosquitto|microsoft-windows|web-sockets| | How to enable WebSockets on Mosquitto running on Windows? | 1205 | <p>I have a Mosquitto broker up and running on my Windows machine. I don't remember if I installed it with Web Sockets support (Cause I didn't knew what that was, or if I needed it). But seeing now my requirement is to use JavaScript (Paho) to connect to MQTT, I want to know how to enable Web Socket support for my exis... |
2017-03-12T14:21:03.343 | <p>Are you asking about the <em>protocol</em> or the <em>message format</em>? We often incorrectly use the term protocol when we mean the format of the data. I do this myself, often because the distinction isn't clear to everyone.</p>
<p>Messaging protocols used in IoT tend to be fairly compact, at least more so than ... | |communication|protocols| | What Messaging Type can be used for Cellular Network Oriented IoT Protocols? | 1209 | <p>This came to my attention recently when I found an amazing video on Youtube by:</p>
<blockquote>
<p><a href="https://www.youtube.com/watch?v=6DRFAOTGdjA&list=PLlx98-upIVs9RBVFkUxeeL4JkSJl8Y_lt&index=1" rel="noreferrer">Micheal E. Anderson: Comparing Messaging Techniques for the IoT, OpenIoTSummit, Linux F... |
2017-03-14T19:05:09.080 | <p>I think you'll find a fairly high percentage of "#5, Other", because the list is missing one of the most common consumer IoT architectures: indirect communications via an in-home gateway. </p>
<p>All the other methods you describe have drawbacks in the home: they're hard to configure, they're not secure, or they... | |smart-home|security|networking| | How do consumer IoT devices typically enable Internet connection? | 1222 | <p>As far as I know there are 2 general methods for enabling remote (Internet, not LAN) access to IoT devices:</p>
<ol>
<li>Via a server that the device polls periodically (e.g. <a href="https://en.wikipedia.org/wiki/MQTT" rel="noreferrer">MQTT</a>)</li>
<li>Direct remote access</li>
</ol>
<p>I'm assuming the second ... |
2017-03-17T16:26:12.297 | <p>To answer your second question, yes, <a href="https://media.blackhat.com/us-13/US-13-Lee-Hacking-Surveilling-and-Deceiving-Victims-on-Smart-TV-Slides.pdf" rel="noreferrer">this attack was publicized in 2013 at Black Hat</a>. Two Korean researchers demonstrated an attack that was developed against Android. Attackin... | |smart-home|security|smart-tv| | Is my Samsung Smart TV vulnerable to the "weeping angel" attack? | 1233 | <p><a href="https://www.cnet.com/news/weeping-angel-hack-samsung-smart-tv-cia-wikileaks/" rel="nofollow noreferrer">On CNet</a>, there's a report about <a href="https://www.cnet.com/products/samsung-un75f8000/review/" rel="nofollow noreferrer">Samsung UNF 8000 smart TVs</a> being vulnerable to a hack developed by the C... |
2017-03-19T02:55:10.280 | <p>I would look at some of Nordic SoC's solutions that have integrated protocols. Its a good way to have a chip that would allow you to test different scenarios, Nordic has SoC's with most of the common protocols (Bluetooth, WiFi, IEEE, ANT etc.) in one chipset. </p>
<p>I would start with Bluetooth, its the simplest, ... | |smart-home|wireless| | Which protocol should I use for automation devices in a home environment? | 1242 | <p>I have a project to automate things in a house.
I am a developer but a beginner in electronics and IoT.</p>
<p>What should I use to communicate wirelessly? Wi-Fi, Bluetooth... Where should I look?</p>
<p>I need a <strong>cheap, low consumption</strong> and <strong>tiny</strong> solution, for example making extra w... |
2017-03-21T14:31:16.830 | <p>Multicasting requires that all the devices you want to talk to are listening, so you have to start with a LoRaWAN class C stack, where devices are always listening. Using a "group address" is a trivial modification of the stack: you just have to add some code so that the device filter incoming frames that contains e... | |lora| | LoRaWAN Multicasting | 1256 | <p>Is there any real implementation of LoRaWAN multicasting? According to v1.0.2 LoRaWAN specification it is possible to send multicast frames but I have not found neither a node nor a network server for doing so.
Nobody knows a way?</p>
|
2017-03-21T19:18:33.010 | <p>The bulbs, in fact, do generate data. They report their state to central hubs or perhaps, faraway servers, and this data can be queried, or even acted on, like a bulb that autumatically turns off during the day.</p>
| |smart-home|lighting|analytics| | Data generated from smart bulbs? | 1257 | <p>I'm trying to answer 2 questions mainly:</p>
<ol>
<li>What kinds of data are generated from 1 branch of IoT devices namely smart bulbs/smart lighting? </li>
<li>How can we visualize the data generated by the same?</li>
</ol>
<p>I searched online specifically on the same but could not find a lot of useful informati... |
2017-03-21T23:17:34.440 | <p>In-line dimmers have to be dimmers rather than switches because they have no neutral return at the switch. This makes any multi-way arrangement nigh impossible.</p>
<p>The 'obvious' homebrew solution is a z-wave relay, and a unit to aggregate 'switch' requests into a control toggle. Probably requires an mcu or SBC t... | |smart-home|hardware|zwave|ac-power|lighting| | Z-Wave switches with 2-way switched lights? | 1262 | <p>I'm looking for a set of Z-Wave (preferably Z-Wave Plus) components to use in order to merge two 2-way light switch circuits and allow control of both lights from all switch positions. I've looked at Fibaro FGD-212 modules but I don't think they'll meet my needs.</p>
<p>I'll give as much detail below as I can about... |
2017-03-22T14:26:47.870 | <p>My experience is that <strong>it rarely matters</strong> — you can try to define precisely what is or isn't IoT, but you're probably wasting your time splitting hairs rather than solving problems.</p>
<p>For a good overview of what different groups consider "IoT", you might want to read <em><a href="https://iot.sta... | |definitions|wearables| | Are wearables considered IoT? | 1274 | <p>With the advent of several devices that are now considered wearables (fitbits, snapchat spectacles, apple watch, etc) are these devices considered IoT?</p>
<p>Does it depend on the type of connectivity? For instance, the Apple Watch has WiFi and fitbits don't. Do they need to integrate with other services in order ... |
2017-03-25T16:37:43.887 | <p>The LoRaWAN network seems to be more an enabling part than the main project aim. They're enabling various university groups (and others) with sensor deployment (and have the capability for city-wide coverage now, albeit at a fairly low bit rate).</p>
<p>The back-end of the network is probably more interesting, with... | |lora| | Can I connect my devices to the Cambridge Intelligent City Platform? | 1284 | <p>According to <a href="http://www.cambridge-news.co.uk/news/cambridge-news/driverless-vehicles-travel-apps-cambridge-12774194" rel="noreferrer">Cambridge News</a>, a LoRaWAN network has recently been set up in Cambridge for the 'Intelligent City Plaform'—essentially, a smart city platform for IoT devices to sense and... |
2017-03-28T11:10:08.517 | <p>I have managed to recompile the NodeMCU firmware with us timer enabled:</p>
<ul>
<li><p>Install docker build environment of Marcel Stör:
<a href="https://hub.docker.com/r/marcelstoer/nodemcu-build/" rel="nofollow noreferrer">https://hub.docker.com/r/marcelstoer/nodemcu-build/</a></p></li>
<li><p>change firmware fil... | |esp8266| | Sub milisecond timer for ESP8266 in Lua | 1289 | <p>I'm trying to make a remotely controlled servo motor controller on ESP8266 which is controlled by a server.
The problem I'm facing is how to make an asynchronous timer, like <code>tmr.alarm()</code>, but in microseconds. <code>tmr.delay()</code> doesn't work so well, because it stops everything else and is not so a... |
2017-03-28T19:23:54.837 | <p>I've not looked at the system in detail, but it looks like it really should have properly encrypted/authenticated transmission. This means that unless you can extract the app's private certificate, or otherwise man-in-the-middle the LAN traffic, you won't be able to just tap into the system as you propose. The first... | |smart-home|communication| | Trying to switch my lights off in my smart home | 1293 | <p>My main objective is to make my arduino or create a app on android to control lights in the house.</p>
<p>So my home has the Nexwell Tukan and I can control the lights and power outlets and more, it also has a LAN card with it so it can be controlled with a mobile phone or a PC, the app is called Nexovision. In tha... |
2017-03-30T14:42:32.703 | <p>I couldn't find anyone to explicitly confirm it, but I think it's very likely. If you look carefully at the image they provide on <a href="https://store.smarter.am/products/fridgecam?variant=20094993093" rel="nofollow noreferrer">their website</a>:</p>
<p><a href="https://cdn.shopify.com/s/files/1/0712/3461/product... | |smart-home| | Do I have to manually enter expiry dates with the Smarter FridgeCam? | 1302 | <p>I've been learning recently about the <a href="https://store.smarter.am/products/fridgecam" rel="noreferrer">Smarter FridgeCam</a>. According to their article, one of the features is:</p>
<blockquote>
<ul>
<li>Expiry date notification: Automatic reminders sent to your phone on food expiration dates.</li>
</u... |
2017-04-03T10:36:03.070 | <p>I'll be answering only this part, as I know of no 'out of the box' system for an unknown firwmare.</p>
<blockquote>
<p>maybe there are some best practices for implementing firmware upgrade
over the air for embedded devices in secure and robust way?</p>
</blockquote>
<p>In term of practice, what I would do is a... | |security|microcontrollers|over-the-air-updates| | Are there any ready cloud services or frameworks for firmware update over the air? | 1313 | <p>I have prototype of the resource constrained-device (8-bit MCU with no-OS firmware), interacting with a web server. I wonder are there any solutions, frameworks or cloud services for updating my device firmware from the web. From my research there is Microsoft IoT Hub, but I am afraid it does not suits for such reso... |
2017-04-03T14:16:26.257 | <p>In general: a fairly common denominator <strong>in large scale breaches</strong> is the fact that it are <strong>not the individual IoT devices</strong> (Teddy bears, toys, sensors and what more) that get hacked, but instead <strong>the central servers get compromised</strong>. </p>
<p>Patches or security updates ... | |smart-home|security| | Keep my Teddy Bear from being hacked | 1314 | <p>I recently ran across an article on <a href="https://arstechnica.com/security/2017/02/creepy-iot-teddy-bear-leaks-2-million-parents-and-kids-voice-messages/" rel="noreferrer">arstechnica.com</a> which outlines a recently discovered hack for teddy bears. Apparently, <a href="http://spiraltoys.com/" rel="noreferrer">... |
2017-04-05T15:50:47.893 | <p>On Android, a <strong>discovery devices</strong> functionality is implemented, maybe you can also implement it on your embedded device or at least find an API that provides it.</p>
<blockquote>
<p><strong>Discovering a device</strong></p>
<p>Your application can discover USB devices by either using an intent... | |hardware|system-architecture|usb| | How to check usb connectivity? | 1320 | <p>I want to check if UART usb is connected to PC or not from my embedded program. Is there any indication line I can get in usb to connect to interrupt pin to detect from.embedded setup? From PC side I can get indication of usb connected and disconnected. But I want to know from embedded hardware side.</p>
<p>Detail... |
2017-04-05T19:08:46.357 | <p>I faced <a href="https://www.linkedin.com/feed/update/urn:li:activity:6297381096170487808" rel="nofollow noreferrer">interesting discussion started by Theo Priestley</a> at LinkedIn about IoT and blockchain stating:</p>
<blockquote>
<p>IoT cannot</p>
<p>-- authenticate millions/billions of service nodes (sensors, de... | |networking|blockchains| | Are there any applications where blockchain is used with IoT? | 1322 | <p>Since the emergence of these two Technologies, it can be a near future possibility that <a href="https://blockchain.info" rel="noreferrer"><strong>blockchain</strong></a> and other forms of <em>crypto-currency</em> will be used more frequently.</p>
<p>According to <a href="http://www.cio.com/article/3027522/interne... |
2017-04-10T09:33:57.120 | <p>Google has <a href="https://blog.google/products/assistant/tomato-tomahto-google-home-now-supports-multiple-users/" rel="nofollow noreferrer">now announced</a> how to set up multiple accounts on the Google Home:</p>
<ol>
<li>Click the 'multi-user is available' card in the Google Home app</li>
<li>A list of devices ... | |google-home|voice-recognition| | How do I switch between users with my Google Home? | 1334 | <p>A new card in the Google Home app <a href="http://www.androidpolice.com/2017/04/10/google-home-app-says-multiple-users-now-supported/" rel="noreferrer">says that multiple users are now supported</a>:</p>
<blockquote>
<h2>Multiple users now supported</h2>
<p>Now, you and others in your home can get a personal... |
2017-04-10T14:57:33.483 | <h2>DDoS vs. "PDoS"</h2>
<p><strong>1. DDoS (for reference)</strong></p>
<p>A conventional distributed denial of service attack (DDos) is a class of denial of service (DoS) attacks in which a <a href="https://en.wikipedia.org/wiki/Overlay_network" rel="noreferrer">distributed system</a> (botnet) consisting of nodes con... | |security|mirai| | What is the difference between a DDoS attack and a PDoS attack? | 1338 | <p>I've read a certain amount about the <a href="https://iot.stackexchange.com/questions/tagged/mirai">Mirai</a> worm, a virus that attacks Internet of Things devices using default usernames and passwords and essentially is wired to produce a Distributed Denial of Service (DDoS).</p>
<p>However, I've recently read abo... |
2017-04-10T14:59:01.803 | <p>Assuming you need to handle firmware updates (otherwise, you're insecure by default) then you will also need to sign the updates (and manage updates in a secure way). Otherwise, an attacker can simply present your device with a compromised update package. Clearly, if you do this, you make it impossible for the user ... | |security|linux|authentication| | How to secure root on IoT device while remaining open to tinkerers | 1339 | <p>I'm currently spitballing ideas for an Internet of Things device. It will be running Linux on a widely available development board, I'm not too concerned about physical security or the end user doing something bad to it however I'd like to secure it from botnets such as the mirai botnet.</p>
<p>For things such as t... |
2017-04-10T22:54:47.857 | <p>If, on the other hand, we look the <a href="https://support.smartthings.com/hc/en-us/article_attachments/115004583883/arlo_pro_user_manual_en.pdf" rel="nofollow noreferrer">user guide</a>, we will see that WiFi is providing a 100% cordless connection from the camera to the base station and Ethernet is the way for co... | |security|networking|digital-cameras|surveillance-cameras| | Does Arlo Pro communicate via WiFi? | 1348 | <p>I just setup an Arlo Pro security camera (made by Netgear) and found it interesting that the system didn't explicitly have me configure a WiFi connection. The setup process consists of hard-wiring the base receiver to my network, then simultaneously pressing sync buttons on both the base receiver and camera.</p>
<p... |
2017-04-11T16:54:53.693 | <p>This ended up working for me:</p>
<ul>
<li>Create a new mode in Arlo app. Have it do any recording or notifications</li>
<li>Connect Arlo to SmartThings (using Arlo Connect SmartApp)</li>
<li>Add each Arlo device as needed</li>
<li>Select each newly added Arlo device and set it to Inactive (click the green camera i... | |security|samsung-smartthings|digital-cameras|mobile-applications| | Set Arlo Mode with SmartThings | 1362 | <p>If it's possible, how can I set the "Mode" for an Arlo device using a SmartThings Routine? Ideally, I would simply set the camera modes when SmartThings goes into various security modes.</p>
<p>I've found that I don't really like the Arlo security modes and have created my own notification/recording modes and set t... |
2017-04-12T16:49:00.067 | <p>Bluetooth (and pretty much every other transmission protocol in contrast to sensors like radar) are based on digital protocols. This means that the signals are both binary, and protected by error detection/correction codes.</p>
<p>So long as the signal is strong enough that there are only a few errors in any one pa... | |sensors|bluetooth-low-energy|beacons|data-transfer| | How does transmit power influence the accuracy of beacon sensor readings? | 1367 | <p>I have some Bluvision Beeks beacons equipped with temperature sensors. I can adjust their transmit powers. I am wondering if setting a higher transmit power for a particular beacon will result in a better sensor reading than if the beacon were set to a lower transmit power in general. Or is higher transmit power onl... |
2017-04-14T15:14:00.093 | <p>You might want to look at the concept of <a href="http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-dead-letter-queues.html" rel="noreferrer">dead-letter queues of AWS SQS</a>. From the AWS docs:</p>
<blockquote>
<p>A dead letter queue is a queue that other (source) queues can target
... | |mqtt|aws-iot|aws| | How can I set up main and failover MQTT subscribers for a job queue with AWS IoT? | 1371 | <p>I have an system where a client (let's call it ClientA) can publish requests to a particular MQTT topic. The broker, in case it matters, is Amazon Web Services. Then I have another client (let's call it MainSubscriber) which is always subscribed to the same topic so that it can pick up requests from ClientA and do s... |
2017-04-19T19:42:10.710 | <p>I've found another way quite expensive yet working with external processes such as PHP's <code>system</code> : <strong>screen</strong></p>
<p>First, install it :</p>
<pre class="lang-bash prettyprint-override"><code>sudo apt-get install screen
</code></pre>
<p>Then call your function</p>
<pre class="lang-bash prett... | |smart-home|domoticz| | Reliable timers for always on/timed/off lamps | 1386 | <p>I have a ZWave light bulb and a ZWave 4-button wall switch, both connected to Domoticz installed on a Raspberry Pi.</p>
<p>I'd like the following scenarios :</p>
<ul>
<li>Button 1 : lamp on for 30 minutes</li>
<li>Button 2 : lamp off</li>
<li>Button 3 : lamp always on</li>
<li>Button 4 : summon Cthulhu</li>
</ul>
<p... |
2017-04-23T13:36:34.087 | <p><em>Disclaimer: some of the content is conjecture</em> </p>
<p>A summary of the experiment is described in the introduction (page 2). The claim is in bold:</p>
<blockquote>
<p>Our initial discovery was that <strong>the Atmel stack has a major bug in its proximity test, which enables any standard ZigBee transmit... | |security|philips-hue| | Is a 'chain reaction' of ZigBee bulbs being hacked feasible? | 1394 | <p>I recently saw <a href="https://www.youtube.com/watch?v=Ed1OjAuRARU" rel="noreferrer">this video</a>, in which some students attached an 'attack kit' to a drone and flew it near office blocks. </p>
<p>According to <a href="http://iotworm.eyalro.net/iotworm.pdf" rel="noreferrer">their paper</a>:</p>
<blockquote>
... |
2017-04-25T12:45:03.510 | <p>The SX127x family of chips from Semtech are modems supporting both LoRa and (G)FSK modulations (including ultra-narrow band FSK). Coupled with a microcontroller implementing the relevant stack(s), they are already used for with following IoT network protocols: <strong>LoRaWAN</strong>, <strong>Sigfox</strong>, <stro... | |lorawan|sigfox| | Are there any all-in-one chipsets that support LoRaWAN and Sigfox? | 1402 | <p>Connectivity technologies are diverging in the last times to adapt to the continuous demands. In the lack of any GSM standard there are several communication technologies. I'm interested to know if there exist chipsets with support for several technologies. I'm trying to avoid the beta-vhs problem, so I'm looking if... |
2017-04-26T13:59:17.573 | <p>A module is a physical unit, which satisfies some function (e.g. a WiFi module), and is normally made of smaller parts. These parts have been incorporated into one monolithic item. A chipset is a collection of individual elements which have been integrated to provide a function (for example, allowing the exchange of... | |definitions| | What is the difference between a module and a chipset? | 1412 | <p>From <a href="https://iot.stackexchange.com/questions/1402/are-there-any-all-in-one-chipsets-that-support-lorawan-and-sigfox">this question comments</a> I found out there is some drastical difference if we speak about a chipset or a module.</p>
<p>I could not find a definition, that clearly would distinguish these ... |
2017-04-28T12:17:45.903 | <blockquote>
<p>I was wondering whether there are any existing protocols that are
geared towards send and receiving commands and configuring remote
devices?</p>
</blockquote>
<p>Yes, there is a better protocol for device management in IoT.
It is <a href="https://www.avsystem.com/blog/lightweight-m2m-lwm2m-overvi... | |networking|mqtt|protocols| | Protocol for configuring IoT device settings | 1419 | <p>MQTT is widely used in IoT when it comes to exchanging application data between the end device and the host service. The publish-subscribe model makes it easy to use: no handshaking, negotiating etc (at least above the MQTT protocol layer). It's primarily geared towards data-producers being able to distribute their ... |
2017-04-30T20:36:26.087 | <p>The difference between developing an application with a Pi can be very different or somewhat similar to developing an application with a microcontroller due to hardware differences as well as software development toolchain differences.</p>
<p>There are a wide range of microcontrollers available that are anywhere fr... | |microcontrollers|raspberry-pi| | Is there a big jump between prototyping on a Pi, and using a microcontroller? | 1425 | <p>This <a href="https://iot.stackexchange.com/questions/1422/power-reduction-for-raspberry-pi-gps-gsm-tracker">question</a> asks, amongst other things, if there is a big learning curve between using Python on a Raspberry Pi to prototype an endpoint, and using a microcontroller.</p>
<p>Clearly there is a big improveme... |
2017-05-03T15:38:30.177 | <p>From <a href="http://rads.stackoverflow.com/amzn/click/B0186JAEWK" rel="nofollow noreferrer">Amazon publish</a>:</p>
<blockquote>
<p>"Submit two photos for a second opinion on which outfit looks best on you based on fit, color, styling, and current trends. Over time, these decisions get smarter through your feedb... | |alexa|machine-learning|amazon-echo-look| | How does the Amazon Echo Look determine your 'style rating'? | 1435 | <p>Amazon's recently released its new <a href="https://rads.stackoverflow.com/amzn/click/com/B0186JAEWK" rel="noreferrer" rel="nofollow noreferrer">Echo Look</a> device, which is a modified Amazon Echo device with a camera added. One of the new features is a <a href="https://images-na.ssl-images-amazon.com/images/I/61r... |
2017-05-08T18:29:23.540 | <p>There is a big difference between current best practice, what is practical to implement at a sensible cost today, and the products designed in the past few years.</p>
<p>Not too long ago, we saw bluetooth locks appear, kickstarter style, as much as a proof of concept as anything else. As I remember, none were anyth... | |definitions| | Is TechCrunch's definition of "IoT 2.0" significantly different to current best practices? | 1441 | <p>TechCrunch recently <a href="http://www.techradar.com/news/a-closer-look-at-the-internet-of-things-20-and-why-its-inevitable" rel="noreferrer">ran an article</a> on the "Internet of Things 2.0", and seem to say that it will be a major architectural change from what currently goes on.</p>
<p>Some examples of what th... |
2017-05-10T12:57:00.240 | <p>How far away from your base computer do the terminals need to be? Does it need to be a relatively real-time system or can the check-ins be cached for a few seconds? </p>
<p>If you could get away with the range of wifi, and the potential latency of an mqtt message (a good protocol if you need <a href="https://learn.... | |nfc|rfid| | Should I use NFC, RFID or something else? | 1448 | <p>I'm a web developer - so IoT is not my speciality at all - and I've been asked to find the cheapest and most efficient way (in this order of priority) to build a gizmo for a sport event (can't be more specific).
This is how it should work : </p>
<ol>
<li>A Competitor wear a wristband carrying his unique ID.</li>
<l... |
2017-05-10T14:13:00.953 | <p>For android the app, at least mine from June 26, 2017, does not have the option to enable Drop In for specific contacts.
However I installed version 2.1.22 of the <strong>iOS</strong> version, which has that option. Probably later versions will also work.
So now I can use Drop In to reach another specific device in ... | |alexa|amazon-echo| | How do I enable drop-in calling on Alexa? | 1449 | <p>I've configured my Echo and the associated Alexa app for calling and can call registered users. However, though I've read about the drop-in calling feature, I don't see any way to enable it. How do I enable and use drop-in?</p>
|
2017-05-16T06:23:25.667 | <p>This question has been answered, but perhaps this will be valuable for others.</p>
<p>You can wire an ESP32-based board or module to your Arduino, and use <a href="https://vcon.io" rel="nofollow noreferrer">https://vcon.io</a> for a remote OTA. vcon firmware can act as an AVR (and not just AVR) programmer, and ref... | |over-the-air-updates|arduino| | Remote Firmware Update Arduino Nano | 1475 | <p>I am working on <strong>Arduino Nano</strong> <em>(32Kb flash memory of which 2Kb used by boot loader, 2Kb SRAM, 1Kb EEPROM)</em>. </p>
<p>The micro-controller takes input from an electrical device via <strong>RS485</strong> module and posts the data read to a remote server using <strong>GPRS A6</strong> module. Th... |
2017-05-16T12:32:35.133 | <blockquote>
<p>By continuously I mean that streams like video are continuous</p>
</blockquote>
<p>If you are considering continuous video streaming from Pi then LIVE555 Streaming Media is a may serve your purpose. <a href="http://www.live555.com/" rel="nofollow noreferrer">Live555</a> will provide following:</p>
<... | |communication|raspberry-pi|data-transfer| | Raspberry Pi to send sensor's data to server continuously and receive commands from server | 1479 | <p>I would like to design a system using Raspberry Pi that sends the sensor's data to server continuously and receive commands from server.</p>
<p>Will MQTT suit my needs ? </p>
<p>Is there any way to do so if I use Java on my Pi?</p>
<p><strong>Edit</strong></p>
<p>By continuously I mean that streams like video ar... |
2017-05-16T14:20:47.207 | <p>Okay. Given the comments so far, here's how I'd approach it:</p>
<ol>
<li>Set up DDNS through any competent provider.</li>
<li>Set up OpenVPN on your PI, and route UDP port 1194 (or whatever port you set it up on) from the router to the PI. All external connections to your PI will have to have a properly configur... | |security|networking|raspberry-pi| | How to protect Raspberry Pi from attack in an IoT setup connected through a Broadband network? | 1482 | <p><strong>The Setup:</strong></p>
<p>I have a Raspberry Pi as the master node which is connected to the internet through a broadband connection, the raspberry pi connects several sensors and other microcontrollers. The Pi is continuously connected to a server at a Cloud Hosting Provider.</p>
<p><strong>The Questions... |
2017-05-18T08:34:14.997 | <p>They're comparable in that both allow you to have full-duplex communication such that the server can immediately pass data to the client, without the client polling for it (as might be with HTTP). </p>
<p>However, Websockets is designed for a simple point-to-point connection between a client and a server. MQTT laye... | |communication|monitoring|mqtt| | What is the difference between MQTT and Web Sockets, and when should I use them? | 1492 | <p>What are the major differences between MQTT and Web Sockets?</p>
<p>When using IoT for home automation - control and monitoring access over different devices, which one of them should be used when Rest API based and browser based accessibility is required.</p>
<p>I am using Java (Pi4J Library) on a Raspberry Pi 2 ... |
2017-05-18T17:28:51.923 | <p>The given settings in <code>/etc/config/network</code> are correct. However, to apply the settings, it isn't sufficient to restart the network via <code>/etc/init.d/network restart</code> but also applying the DNS servers via <code>/etc/init.d/dnsmasq restart</code> which had not been done. After that, the Onion Ome... | |networking|ethernet|ip-address|onion-omega2| | Connect Onion Omega2 to static ethernet | 1494 | <p>I can't get my <a href="https://onion.io/store/omega2/" rel="nofollow noreferrer">Onion Omega2</a> to connect to my ethernet via a static IP address and two DNS addresses. To connect my PC, I have to set the following:<br>
IP address: <code>82.149.xxx.xxx</code><br>
subnet mask: <code>255.255.255.0</code><br>
gatewa... |
2017-05-25T17:29:36.290 | <p>The times when it makes sense to roll-your-own are quite limited. When it comes to device constraints, its important to look at the whole system performance. For sure, the state of the art does move on but the goal should be optimising endpoint energy performance rather than working out how to cope with a device tha... | |security|communication|protocols| | Is it ever a good idea to 'roll your own' protocol for IoT device communication? | 1517 | <p>I've heard many people mention that their embedded IoT devices aren't powerful enough to process known protocols, like <a href="https://en.wikipedia.org/wiki/HTTPS" rel="noreferrer">HTTPS</a> or even <a href="https://en.wikipedia.org/wiki/Transport_Layer_Security" rel="noreferrer">TLS</a> security for sockets.</p>
... |
2017-05-26T12:01:13.597 | <p>Significantly, it looks like you don't need to use the LightwaveRF hub, both the Echo and Google Home descriptions avoid mentioning the hub (which is needed if you want to use IFTTT directly for example)</p>
| |smart-home|lightwave-rf| | What is the nature of the partnership between LightwaveRF and Google Home / Amazon Echo? | 1521 | <p>I read an article recently from <a href="https://www.ft.com/content/e77d1710-3bef-11e7-ac89-b01cc67cfeec" rel="nofollow noreferrer">ft.com</a> (dated May 21, 2017) which details the progress of the IoT company <a href="https://www.lightwaverf.com/solution/smart-home/" rel="nofollow noreferrer">LightwaveRF</a>. One ... |
2017-05-26T12:16:56.980 | <p>A lot of ISP providers do not allow residential customers to use port 80 or 8080. Try using a different port number with Motion, and also check with your ISP to see which ports are allowed. You also need to activate port forwarding on the Netgear router, so traffic is routed to the Raspberry Pi</p>
| |networking|raspberry-pi|remote-access| | How to access camera feed of Raspberry Pi out of a local broadband network? | 1523 | <p><strong>BACKGROUND</strong></p>
<p>The current setup I have for the Raspberry Pi is:</p>
<pre><code>USB Webcam -> Raspberry Pi -> Netgear Router -> Local ISP -> Internet
</code></pre>
<p>My ISP gives me a captive portal through which I can login to access the internet and my public IP address is shown... |
2017-05-27T12:01:23.037 | <p><sup>I'm including the answer with a link to the official article, since I had a hard time finding it. Hopefully, it will help someone.</sup></p>
<h3>The status has indeed changed.</h3>
<p>Belkin published <a href="http://www.belkin.com/us/pressreleases/8804624237628/" rel="nofollow noreferrer">this article</a> on ... | |wemo|apple-homekit| | Do Belkin Wemo switches integrate with Apple HomeKit? | 1526 | <p>In March of 2016, <a href="http://www.belkin.com/us/support-article?articleNum=187953" rel="noreferrer">Belkin announced</a> that they would not be supporting Apple HomeKit any time in the near future. This meant that integration was basically impossible across Apple devices. </p>
<p>However, that article was ove... |
2017-05-28T16:03:19.533 | <p>At least Cytron has a model, that says (embhasis my own):</p>
<blockquote>
<ul>
<li><p>Direct access to any MCU through Serial UART operation and integrated with low current warning.</p>
</li>
<li><p>Able to retrieve fingerprint <strong>raw data</strong> and fingerprint identity files.</p>
</li>
</ul>
</blockquote>
... | |biometrics| | Is there a biometrics fingerprint scanner that directly sends raw biometrics data? | 1535 | <p>I have this payroll project where my client wants to use biometrics to easily keep track the time attendances of his 400 employees. However, the problem is his company has a high employee turnover rate.
It implies that the biometrics fingerprint scanner which usually has only a limited number of available fingerpri... |
2017-05-30T13:00:12.917 | <p>The solution you posted should work fine, but if not, there's also a workaround posted on <a href="http://lovemyecho.com/2017/02/14/another-alexa-intercom-life-hack-send-messages-alexa-devices/" rel="nofollow noreferrer">lovemyecho.com</a> that would allow you to use your Amazon Echo as a 1-way intercom, though it d... | |smart-home|alexa| | Can I call other Echo devices in my house? | 1558 | <p>Recently, Amazon introduced <a href="https://techcrunch.com/2017/05/09/amazon-enables-free-calls-and-messages-on-all-echo-devices-with-alexa-calling/" rel="noreferrer">calling</a> between devices with Alexa Calling. With this, you can ask Alexa to call other people who have Echo devices (and have enabled the feature... |
2017-05-30T21:38:31.120 | <p>This belongs more on the SQA SE, but here there is better context.
Usually you would want three levels of testing</p>
<ul>
<li><p>Unit tests, in your case this can be testing the generated code even without an OS. You can achieve it by mocking whatever is missing.</p></li>
<li><p>Integration tests, mocking everythi... | |protocols|testing| | Testing a telemetry and telecommand interface | 1563 | <p>I am currently writing a generic telecommand and telemetry library which I plan to use on Zephyr RTOS.</p>
<p>Given an input CSV file, it generates some C++ code which can then easily be integrated in the rest of the project. Specifically, it generates a telecommand function and a telemetry function per defined sub... |
2017-05-31T14:49:49.643 | <h2>What are the steps to the privacy leak described?</h2>
<p>Basically there are three parts in getting the information described in the paper.</p>
<ol>
<li>An interested party recording the outgoing traffic (2)</li>
<li>Said party being able to split the traffic streams (4.1)</li>
<li>Analyzing the different traffi... | |privacy|https|tls| | How can I prevent my device leaking sensitive data through traffic fingerprinting? | 1566 | <p>According to the recent paper <a href="https://arxiv.org/pdf/1705.06805.pdf" rel="nofollow noreferrer"><em>A Smart Home is No Castle:
Privacy Vulnerabilities of Encrypted IoT Traffic</em></a>, many smart home devices can be 'fingerprinted' by their connection patterns. Since most devices connect to a small set of UR... |
2017-06-01T12:13:15.490 | <p>As far as I can tell, there's no IoT-related 'smartness' despite the name. As mico points out, the lights work by producing frequencies of light that humans can see, but that will not affect the turtle breeding cycle.</p>
<p>On their website, they promote the energy saving benefits, but don't mention any networking... | |lighting| | Are the Smart Lights saving turtles actually Smart? | 1571 | <p>My curiosity was recently piqued by <a href="http://iotpodcast.com/2017/05/episode-113-google-home-gets-way-better/" rel="noreferrer">IOTpodcast.com</a>. They mention in the description of the podcast that one of the things to discuss is how smart lighting is saving sea turtles. I then found <a href="http://smartl... |
2017-06-02T08:07:07.173 | <p>It is important to identify whether the problem is :</p>
<ul>
<li>Devices or network deployment </li>
<li>Devices or network configuration. </li>
<li>Devices Hardware (or firmware versions)</li>
<li>Environment</li>
<li>Security configuration</li>
</ul>
<p>The paths to take here are too diverse so you need to narr... | |zigbee|routers|rfid| | Zigbee network intermittent issues | 1575 | <p>My Zigbee network connection seems to be intermittent. Suddenly all routers will lose connection, for example unable to ping any of the routers. After awhile (e.g overnight or a period of a few days) the network will be up again.</p>
<p>Set up: </p>
<ul>
<li>1x coordinator</li>
<li>21x routers</li>
<li>42x end dev... |
2017-06-02T22:51:04.937 | <p>It is said already in other answers that you should use MQTT in your case.</p>
<p><strong>But why?</strong></p>
<p>MQTT is The Protocol if your things are behind a firewall in a private network [1]. All tricks are an outbound rule for port 1833 or with some configuration maybe not even that [2].</p>
<p><strong>How w... | |smart-home|networking|raspberry-pi| | Communication Between Server and Raspberry Pi | 1578 | <p>I am working on my home automation project. I have a server on digital ocean. I want to put my php code on that server and that server will connect to my Raspberry Pi. How can I pass messages between my server and Raspberry Pi. I want to control my website over internet.</p>
<p>Turn On Light (from internet) --> Di... |
2017-06-06T10:58:08.563 | <p>There are a lot of devices out there that allow you to control digital I/O over a network. The difference between this and relay control is very little as you can very easily add a <a href="http://rads.stackoverflow.com/amzn/click/6374820011" rel="noreferrer">Solid State Relay</a> to a digital output.</p>
<p>Produ... | |hardware|industry-4.0| | Looking for a relay that can be controlled from .net web application (via TCP/IP) | 1589 | <p>As part of one new requirement for web application I am maintaining, we need to send a signal to a device in a factory when certain conditions are met in the application.</p>
<p>Sending a signal is simply short-circuiting 2 wires (physical push button). The controlled device is not anywhere near the web server that... |
2017-06-06T15:35:48.777 | <p>Try this web server for IoT and realtime GPS tracking, <a href="https://iot.electronixforu.com" rel="nofollow noreferrer">https://iot.electronixforu.com</a>
It supports Passthrough mode of ESP8266, it means you can send data as fast as you can (normally 1 second interval), details are available at <a href="https://e... | |smart-home|networking|esp8266|streaming| | How to write/post files to website server through ESP 8266 | 1590 | <p>I want to know if there is a way to send files to a website with sm ESP 8266 or any other IoT device. I intend that the IoT device will be the client. A PHP or scripting file on the website will act as the server. It will look like the IoT device is uploading the files to the website.</p>
|
2017-06-06T18:12:30.747 | <p>Perhaps the software featureset has changed but I've found that the following works. This is from my DIY code for nodemcu/D1 mini ESP8266 module using esp8266 webserver listening for local UDP broadcasts. I noticed in the Alexa calls to /upnp.control/basicevent1 that the requests were changing subtly. It all boil... | |alexa|esp8266|wemo| | Getting status from WeMo device using Alexa | 1595 | <p>I am using an ESP8266 to emulate a WeMo device with wemos and fauxmoESP arduino code found on the internet. Now that I understand the basic interaction of on and off commands, I'd like to add a status response for the state of some pins on the device. It appears that "turn on" and "turn off" are basic Alexa skills a... |
2017-06-07T13:45:26.017 | <blockquote>
<p>if the MQTT IoT devices are completely different from other types like HTTP in features, or is the difference only about communication protocols?</p>
</blockquote>
<p>The difference is at the protocol level. Same device may run MQTT as well as HTTP if required. But, device maker will choose a protoco... | |protocols|system-architecture| | What are the differences between MQTT, HTTP, CoAP devices (besides communication protocol)? | 1598 | <p>I am new to IoT platform and after days of reading I am still confused about different types of IoT devices. Currently, I have read about smart devices that connect to the cloud through different ways like MQTT, HTTP, LWM2M, and maybe more. Are the IoT devices are really fragmented (like MQTT devices, HTTP devices) ... |
2017-06-11T11:46:19.750 | <p>It's easy to build your own platform to stream video/security camera for less that $50. You can use any Pi, buy one used for cheap or a Pi Zero W (it has wireless) for less than $10.</p>
<p>Here are a few examples of how this can be achieved using both Raspbian and Windows IoT Core. You can use the Raspberry Pi Cam... | |smart-home|raspberry-pi|data-transfer| | Cheap video streaming platform using Raspberry Pi | 1610 | <p>I have a questions as stated in title - I hope it will not be "primarily opinion based" since I wanted to ask you if what I have in mind is even doable.</p>
<p>I want to create network of couple cameras that could stream from given location to local server.</p>
<p>Few requirements for my project:</p>
<ul>
<li><p>... |
2017-06-11T12:08:04.393 | <p>The support is generally pretty good for locations outside of the UK, US and Germany (although it's not officially supported yet).</p>
<p><a href="https://iot.stackexchange.com/a/204/12">Coomie's experience of using the device in Australia</a> is useful to read—here's a brief summary:</p>
<blockquote>
<p><strong... | |amazon-echo| | Does Amazon Echo work in countries where Amazon is yet to launch Echo officially? | 1611 | <p>I am considering to get an Echo Dot in UK but will use in it a country where Amazon is yet to launch officially. Will Echo even work? If anyone from community has tried something similar can you please list what features on Echo are limited in countries outside the supported list?</p>
<p>I intend to use Echo for fo... |
2017-06-13T08:29:20.530 | <p>I posted this same question to the Microsoft forums and got a reply from IoTGirl saying that WiFi Direct is an option: <a href="https://social.msdn.microsoft.com/Forums/en-US/fc77339d-25fc-40e2-bf59-31e51361f893/windows-iot-core-wifi-mesh?forum=WindowsIoT" rel="nofollow noreferrer">Windows IoT Core WiFi Mesh</a> </... | |mesh-networks|arduino|microsoft-windows-iot| | WiFi Mesh on Windows IoT core | 1626 | <p>I have a project where I need to create a Wi-Fi mesh network of nodes sharing a distributed mesh database that requires relatively quick search access on each node. I was initially thinking of running this using nodes consisting of ESP8266's (<a href="https://github.com/Coopdis/easyMesh" rel="nofollow noreferrer">ht... |
2017-06-14T06:25:23.717 | <p>RFID card does not emit any electromagnetic signals when it is not close to a reader, it is designed to be passive. It is activated when brought in proximity to the reader. So RFID card cannot really damage your phone while it is in back case of you phone.</p>
| |rfid| | Is it safe to have a RFID card in the back of a Cellphone case | 1631 | <p>I hope this is the right Stack Exchange to ask this, but since RFID Cards are becoming more common and with new Microcontrollers a lot of home-built Internet of things devices can be RFID i figured here seemed right, if not i am truly sorry and will find somewhere else to ask.</p>
<p>I am wondering if it is safe to... |
2017-06-14T09:52:43.670 | <p>The message above decoded:</p>
<pre><code>MQIsdp{03}{02}{00}{14}{00}{11}evolan_12345678900!{00}{06}evolanHello eevoLAN!à{00}
</code></pre>
<p>It is mixed Ascii/Hex (topic, clientID and payload are plain ascii, special chars are {hex}. </p>
<p>It turns out, that this packet always contains the connect / disconnect... | |mqtt|paho| | MQTT packet validity check | 1634 | <p>Is there any tool to check my generated packets for being a valid MQTT (3.1.1) packet? Background: I'm using Paho embedded (MQTTPacket) on my microcontroller to generate packets to be send over my ethernet driver. But something seems to be wrong with my packets as they aren't displayed in mqtt-spy. </p>
<p>i.e. thi... |
2017-06-15T08:42:56.440 | <p>This mostly depends on how much resources your embedded device has.</p>
<p>For example, on ESP8266 devices your options are limited to your own application and C (possibly Lua) programming. There are no resources to run anything else.</p>
<p>On a devices like Onion Omega2 with 32Mb flash and 128Mb RAM you can inst... | |networking|software| | Web admin panel for embedded Linux IoT devices | 1647 | <p>Devices like routers always have a web-based administrative interface that allows you to configure many aspects of the device from a web browser. Obviously, this is essentially a web server running on the embedded devices, where requests to the web site carry out different tasks. </p>
<p>I was wondering whether the... |
2017-06-18T00:05:59.250 | <p>I had the same requirement as you, so I have modified mosquitto v1.5.3 source code, and added a custom <code>log_type</code> in <code>mosquitto.conf</code>:</p>
<pre><code>log_type ping
</code></pre>
<p><a href="https://github.com/yurenchen000/mosquitto/commit/61ce98cdcb0297f38c52a47c1d9c6247f713dd37" rel="nofollo... | |mosquitto| | Mosquitto debug level log - How to keep all entries but PINGREQ/PINGRESP | 1671 | <p>I discussed <a href="https://iot.stackexchange.com/questions/1641/prevent-ping-logging-in-mosquitto-server">here</a> how to avoid ping messages in logs. By changing <code>log_type</code>(s) in <code>mosquitto.conf</code> I found that pings are reported under <code>DEBUG LEVEL</code>. I would comment this log type in... |
2017-06-20T02:40:44.997 | <p>Your thing probably doesn't have a unique IP address in this context, unless it uses IPv6. It will have an address in a private space, such as 10.0.0.0 – 10.255.255.255 or 192.168.0.0 – 192.168.255.255, this will be behind a NAT gateway (which has the ISP assigned public address).</p>
<p>Your thing can <em>probably... | |networking|ip-address| | How to find remote thing's IP address? | 1687 | <p>I have a physically remote thing. It's on someone else's network so I can't get a static IP address for it. What is the best way to track its IP address?</p>
<p>I can imagine just publishing a "heartbeat" that includes the IP address to some service that will store it for me. If there is some sort of software probl... |
2017-06-22T16:33:31.737 | <blockquote>
<p>I'd like to know what are some specific actual real world use cases</p>
</blockquote>
<p>Visit <a href="https://medium.com/@cstoecker/implementing-first-industry-4-0-use-cases-with-iota-dag-tangle-machine-tagging-for-digital-twins-baf1943c499d" rel="nofollow noreferrer">"Implementing first Industry 4... | |cryptography|iota| | How is the IOTA cryptocurrency network useful for devices in the IoT? | 1693 | <p>I found out about IOTA, which is apparently a big solution for IoT
<a href="https://iota.org" rel="noreferrer">https://iota.org</a></p>
<p>But the info about feels a bit abstract to me. I'd like to know what are some specific actual real world use cases of how it can be useful?</p>
|
2017-06-27T14:47:58.173 | <p>From this [1] article from 2015 it tells:</p>
<blockquote>
<p>To use multiple accounts with Echo, you’ll need to set up an Amazon Households account, which allows two adults in the same house to share Prime benefits, and allows parents to share content with up to four children. Amazon says it’s not supporting childr... | |alexa|amazon-echo| | A practical guide to Amazon Echo, families with children? | 1717 | <p>I have an Amazon account, as does my wife. We share Amazon Prime through household setup, and have added our daughter to our kids list. We purchased an Echo Dot for our daughter, and are likely going to get a few more for around the house.</p>
<p>The confusion lies in how to set this up for <strong>her</strong>. Sh... |
2017-06-27T23:13:04.407 | <p>Apple is keeping the technology it uses for AirPods under wraps, hence my answer is best attempt based on the information in public domain.</p>
<blockquote>
<p>Do both Airpods use Bluetooth technology?</p>
</blockquote>
<p>Yes, because</p>
<ul>
<li>Power efficiency that Airpods come with can be achieved via Blu... | |hardware|bluetooth|bluetooth-low-energy| | How do the AirPods communicate with the phone? | 1719 | <p>By reading the <a href="https://www.ifixit.com/Teardown/AirPods+Teardown/75578" rel="nofollow noreferrer">iFixit Teardown</a>, one can realize that the AirPods use the W1 chip for wireless communications. Since both Airpods are wireless, there are questions still unanswered.</p>
<p>Do both Airpods connect to the ph... |
2017-06-28T18:49:05.157 | <p>You probably need a relay rather than a 'smart light switch'. This is because the light switches frequently rely on leakage through the lamp to power the electronics in the switch. With a fan motor, this might not work as intended. You would also risk some damage in using a dimmer to control the motor.</p>
<p>The k... | |smart-home|alexa|apple-homekit| | Ceiling fans - Can I use a smart switch to control a dumb fan? | 1724 | <p>There are a handful of "smart ceiling fans" available that are really expensive (up to $500). </p>
<p>Is there an easy way to just add a smart wall switch with a cheap dumb ceiling fan to get the same result? The fans in question are hardwired, not using any plug.</p>
<p>Some details:</p>
<ul>
<li>Amazon Alexa sw... |
2017-06-29T18:54:49.727 | <p>Currently, there is no support for NFC on the Google Home. I couldn't find an authoritative source to say that there <strong>isn't</strong> support, but there are no known features as of writing that use NFC capabilities. I'm also not aware of any plans in the near future to use the chip.</p>
<p>Note that the chip ... | |google-home|google-assistant|nfc| | Does Google Home support any NFC use cases? | 1731 | <p>The <a href="https://www.ifixit.com/Teardown/Google+Home+Teardown/72684" rel="nofollow noreferrer">IFIXIT Google Home tear-down</a> reveals the <a href="http://www.marvell.com/wireless/assets/Marvell_Avastar_88W8897_SoC-003_PB.pdf" rel="nofollow noreferrer">Marvell Avastar 88W8897</a> WLAN/BT/NFC SoC.</p>
<ul>
<li>... |
2017-07-02T13:23:38.397 | <p>At the moment, it is impossible to set a schedule for Alexa's volume, according to <a href="https://www.reddit.com/r/amazonecho/comments/4maoft/any_idea_how_to_automatically_reduce_the_volume/" rel="nofollow noreferrer">this reddit thread</a>. Instead, you must manually tell Alexa to <em>"set volume to 0"</em> at ni... | |alexa|amazon-echo|smart-assistants| | Can Alexa be trained to use preferred volume levels? | 1750 | <p>Is there a way to train Alexa to use preferred volume levels, such that Alexa</p>
<ul>
<li>plays music at volume X</li>
<li>replies at volume Y</li>
<li>sets volume to 0 every night at 9 PM, and back to last set volume at 6 AM</li>
</ul>
|
2017-07-03T16:06:13.640 | <p>The default operation of the camera(s) <a href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjEz9-Wn-7UAhUg0IMKHT6KDRsQFggmMAA&url=http%3A%2F%2Fwww.pcworld.com%2Farticle%2F3134039%2Fhacking%2Fchinese-firm-admits-its-hacked-products-were... | |home-security|surveillance-cameras|nest-cam| | What kind of network security is employed in live streaming surveillance cameras? | 1752 | <p>Surveillance camera, such as the Nest Cam, provide live stream of feed. Now given such a device which is always connected and streaming what kind of network security model do such products employ?</p>
<p>I assume such products cannot afford to let the stream be eves-dropped or tampered.</p>
|
2017-07-06T09:57:45.240 | <p>In the code it could look like this if you're using node.js </p>
<pre><code>const LaunchRequestHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'LaunchRequest';
},
handle(handlerInput) {
var reprompt = '';
const speakOutput = 'Protokollau... | |alexa|amazon-echo| | How to create a home card in Alexa | 1766 | <p>I'm trying to develop my first skill and I do not find proper information on how to create a home card </p>
<p><a href="https://developer.amazon.com/public/solutions/alexa/alexa-skills-kit/docs/providing-home-cards-for-the-amazon-alexa-app#creating-a-basic-home-card-to-display-text" rel="noreferrer">https://develop... |
2017-07-06T12:55:59.843 | <p>There are several ways that you can create a modified distro, and the best approach will depend on your environment and how you anticipate that evolving over time.</p>
<ul>
<li><p><strong>Yocto</strong> is good if you need to apply some patches and build your own custom kernel/distribution. It seems like you are no... | |linux|software| | Which tools/frameworks do you use to configure an array of SBCs | 1768 | <p><strong>Use case:</strong></p>
<ol>
<li><p>I have a lot of <a href="http://www.compulab.co.il/utilite-computer/web/utilite2-overview" rel="nofollow noreferrer">Utilite2</a> single board computers to configure</p></li>
<li><p>On each device I installed Linaro (Ubuntu-based), booted from MicroSD card. Linaro is recom... |
2017-07-08T19:53:25.307 | <p><strong>Stage 1:</strong></p>
<p>PC side peripherals, specially input devices like mouse, scanner, keyboard are equivalents to sensors. Relevant is the correct pins, correct protocols and signal forms etc.</p>
<p><strong>Stage 2:</strong></p>
<p>Bus between internal parts of PC and between processor and outer dev... | |hardware|system-architecture|software| | Drawing parallels between building an IoT system and building a PC? | 1775 | <p>I am reviewing potential candidates for IoT position. The position in a industrial factory setting requires the candidate to contribute to the 4 stages of an IoT infrastructure as defined in the article: <a href="https://techbeacon.com/4-stages-iot-architecture" rel="noreferrer">How to design an IoT ready-infrastru... |
2017-06-29T14:04:07.987 | <p>I think that <a href="https://www.particle.io/products/hardware/electron-cellular-dev-kit" rel="nofollow noreferrer">Electron</a> by Particle may be something what you are looking for. Electron allows you to build device that can connect to 2G or 3G mobile wireless network.</p>
<p>In one of the previous comments you... | |networking| | Connecting your Pi to the internet when mobile | 1783 | <p>So I am working on a project where I have torn away all the RC related parts of an older 1/10 scale Racing Buggy I had as a kid and replacing said parts with some Arduinos and a GPS to create a super rudimentary autonomous vehicle. I want to add in the Raspberry Pi Zero W as an on board base station for data logging... |
2017-07-10T17:54:36.887 | <p>The presence of a commercial product which has reviews of varying quality should be a good sign that building something like this from scratch is a non-trivial undertaking. Doing IoT well is hard.</p>
<p>Doing it yourself brings some advantages - you can tune the installation for a specific location, implement your... | |amazon-echo|digital-cameras|lighting|surveillance-cameras| | Ring Floodlight - Simple alternative by combining camera and floodlight? | 1786 | <p>The Ring Floodlight looked pretty nice, until FakeSpot warned that most of the positive reviews seem to be bogus, so I've decided to not pursue the commercial product and try to figure out how to get the same functionality otherwise.</p>
<p>Is there a smart motion detection flood light that could IFTTT trigger a c... |
2017-07-11T10:24:21.623 | <p>In 2024, Alexa asks for more than wake words.</p>
<ul>
<li>My son an I had accounts linked to it. After using it for a few months, all of a sudden it chimed up and asked me which one I was and then asked me to say a few things so that it could tell us apart.</li>
<li>I also asked it to recognise my wife's voice even... | |google-home|google-assistant|voice-recognition|smart-assistants| | Is it possible to train the "Google Home" device for different styles of pronunciation? | 1788 | <p>My English pronunciation and accent is different from how American or British English is spoken. I suspect this is contributing to misses for the <em>Google Home</em> device.</p>
<p>Is there a way that I can train the <em>Google home</em> device generally or specifically for the words that I know it has tendency to... |
2017-07-12T12:49:07.070 | <p>No, because there is no information about who published the message included in the message header, only the topic and any retained flags.</p>
<p>The bridge between the 2 brokers is exactly the same sort of connection as between the a normal client and the broker, it looks to the remote broker just like any other c... | |mqtt|mosquitto| | Traffic Shaping and MQTT | 1794 | <p>There are two MQTT Brokers, the connection between them should enable traffic shaping.
Broker A has multiple clients who publish data, Broker B has multiple subscriptions.</p>
<p>Is there a possibility to enable traffic shaping on the connection to ensure that very publisher hast a minimum of granted bandwidth on ... |
2017-07-13T15:26:08.500 | <p>Quite a biased article about IoT and energy saving.</p>
<p>From article:</p>
<blockquote>
<p>the addition of ceiling fans meant that the company could increase the canteen thermostat from 24.5°C to around 26°C and the feedback from diners remained positive.</p>
</blockquote>
<p>They knew they can set the target... | |hvac| | How does the IoT reduce Bosch cooling costs? | 1799 | <p>I read <a href="https://internetofbusiness.com/bosch-canteen-singapore-iot-control-aircon/" rel="nofollow noreferrer">an article</a> recently from InternetOfBusiness.com which outlines how Bosch has been implementing remote controlling of their A/C systems. One thing, however, I fail to see in the article, and that ... |
2017-07-17T14:49:06.780 | <p>I see at least 3 choices to make in your system design.</p>
<p><strong>RF Protocol</strong> WiFi is not very energy efficient. You can mitigate this by only <em>sending</em> readings infrequently (measure at 1 min, transmit at 20 min). BLE or similar might be better, but you need to trade range and parts cost if yo... | |raspberry-pi| | Which IoT platform should I use for low-energy temperature sensors to be powered by battery? | 1812 | <p>I'd like to setup two temperature detectors: one outside and one inside my house, in order to compare temperature and act on the difference (opening/closing the window for example).</p>
<p>The issue I'm facing is which platform to take. My initial thought was to go with the <a href="https://store.particle.io/collec... |
2017-07-19T01:05:34.097 | <p>AFAIK you cannot do that. Thinking of Bluetooth as a quite complex protocol of approximately 1k pages of documentation the power electronics to build such circuit would be overly sized. </p>
<p>Think of your PC, it inputs 110 or 220 and still there is the power unit that lowers the voltage to low DC as in every mic... | |smart-home|bluetooth| | Bluetooth chipset high voltage | 1819 | <p>I understand we usually use relay to do controlled switch, but I'm wondering if the Bluetooth protocol could work on high voltage I mean 110-220v.
So is it theoretically possible to design a Bluetooth chipset running directly on such voltage?
If yes what are the cons not to do it ? From my little knowledge, I guess ... |
2017-07-19T22:06:42.440 | <p>Google Home can be set Up and used in other countries. This <a href="https://beebom.com/how-set-up-use-google-home-outside-us/" rel="nofollow noreferrer">Beebom article</a> provides a step-by-step guide of doing so.</p>
<p>During setup you'll see popup:</p>
<blockquote>
<p>You may see a warning telling you that ... | |google-home| | Can I use Google Home in countries where it is not officially available? | 1828 | <p>I want to know if it works in countries where it's not sold. It's the same Internet, so it should work. Right?</p>
|
2017-07-26T19:33:26.967 | <p>A Raspberry Pi 3 is a pretty serious bit of kit when you think about it</p>
<ul>
<li>Quad core Arm Cortex</li>
<li>1gb of RAM </li>
<li>a onboard GPU</li>
</ul>
<p>That is a huge amount of memory, easily more than enough to run a MQTT broker and something like Node-RED to interface between a LoRa radio and the bro... | |mqtt|hardware|raspberry-pi|lorawan| | Would RPI 3 serve as IoT server with MQTT? | 1858 | <p>I answered to the below linked question and started to think, what are the hardware specs for running an IoT stack of for example MQTT over LoraWan? Would Raspberry PI 3 survive or not?</p>
<p>I do not care how RPI connects LoraWan, mainly about RAM and storage use. </p>
<p><a href="https://iot.stackexchange.com/q... |
2017-07-29T05:44:21.993 | <p>There are 4 standard SDA ratings that I'm aware of: 2, 4, 6, and 10. Basically, the number corresponds to the minimum write speed in MB/s that the card is capable. So for instance, a Class 4 would have a minimum write speed of 4 MB/s, whereas a Class 10 would have a minimum write speed of 10 MB/s.</p>
<p>As Helma... | |microcontrollers|linux|microsoft-windows-iot|intel-galileo| | What will happen if I use Class 4 SD card, instead of recommended Class 10 for Intel Galileo? | 1874 | <p>I could not find any relevant information on this, sites just recommended class 10. I want to know if it is okay to use Class 4, 8 GB SD card, for making a bootable Linux drive for Intel Galileo, or even installing Windows. Are there any consequences of doing so?</p>
|
2017-08-06T11:55:17.473 | <p>IF you would like to located indooer, rfid and bluetooth would be best choice. It has UHF and HF for rfid requency, respectively 860-960MHz and 13.56Mhz. And UHF divided into 902-928 MHz(USA) 865-868 MHz(EU). The passive rfid is better option than active if space not too big. I would recommend the <a href="https://w... | |wireless|rfid|tracking-devices| | Wireless communication technologies for indoor location-tracking | 1891 | <p>I need to develop a solution for determining whether an object/tag exists within a defined perimeter. The perimeter would be located indoors so GPS isn't an option. It would be an approx 10 metres x 10 metres rectangle. The 'tag' needs to fit in a person's pocket (however it could be battery powered), and I would ne... |
2017-08-07T15:00:18.663 | <p>Maybe the following links can help you:</p>
<p><strong>Basic client example:</strong>
<a href="https://docs.python.org/2/library/asyncore.html#asyncore-example-basic-http-client" rel="nofollow noreferrer">https://docs.python.org/2/library/asyncore.html#asyncore-example-basic-http-client</a></p>
<p><strong>Basic ec... | |networking|wireless|software| | Creating an HTTP GET polling service on a Raspberry Pi Client | 1897 | <p>I have the following hardware:</p>
<ol>
<li><p>3 x <a href="https://store.particle.io/#photon" rel="nofollow noreferrer">Particle Photons</a>. Each serve as an HTTP Server</p>
</li>
<li><p>1 x <strong>Raspberry Pi 3</strong> which will serve as an HTTP Client</p>
</li>
</ol>
<p>Upon requesting an <strong>HTTP GET</s... |
2017-08-07T23:15:51.360 | <p>It sounds like you should be looking for a complete IoT device management platform - there are too many complicated aspects of scalability, security, provisioning and firmware update for this to be a sensible thing to try and develop in house from scratch. Make sure you pick a platform which uses open standards.</p>... | |remote-access| | Remote access for multiple IoT project units | 1901 | <p>We are in the early stages of planning an IoT project.</p>
<p>One issue we are struggling with is how our Internet based server can access each unit of our IoT project and deploy code updates, messages ... etc.</p>
<p>I'm concerned about this because, of course, each IoT unit is within it's own WiFi network which ... |
2017-08-09T18:54:31.590 | <p><strong>No, CoAP is an application layer protocol it's not dependent</strong></p>
<p>Basically that's the beauty behind the OSI layers. If correctly implemented you can mostly stack them however you want. As with every thing that starts with <em>if correctly implemented</em> that's mostly academic and some protocol... | |networking|wifi|protocols|bluetooth|coap| | Does CoAP depend on IEEE 802.15.4? | 1908 | <p>In the CoAP specification, it is implied that IEEE 802.15.4 can be used in conjunction with CoAP. Is this a requirement or can CoAP also be used with other OSI layer 1, 2 protocols such as IEEE 802.11, BLE or LTE/5G/etc?</p>
|
2017-08-11T01:03:21.387 | <p><strong>EDIT</strong>: Since having a physical remote seems to be a must, you can check the <a href="https://www.itead.cc/wiki/Sonoff_RF" rel="nofollow noreferrer">Sonoff RF</a> that uses a remote to turn the lights on and off. But, RF are low security and does poor filtering of bad signals, so, it might be attacked... | |lighting| | What is the easiest to install smart switch that has a remote control? | 1910 | <p>I want to install a light switch at my church that has a remote control. Similar to the <a href="http://www.lutron.com/en-US/Products/Pages/SingleRoomControls/CasetaWireless/Overview.aspx" rel="nofollow noreferrer">Lutron Caseta</a>. The only requirement is that it has a remote control. Prefer <strong>not</strong> t... |
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