Latte Panda Mu Lite Board
I have three modules
N100 8GB Active Cooling
N100 16GB Passive Cooling
N305 16GB (BRICKED Sent back to DF Robot)
Power
| Voltage | Current | Power | Note |
|---|---|---|---|
| 18V | STOP | ||
| +10 | +10 | FORWARD 100mm/s | |
| -10 | -10 | BACKWARD 100mm/s | |
| -10 | +10 | COUNTERCLOCKWISE 180°/s | |
| +10 | -10 | CLOCKWISE 180°/s |
Battery Teleoperation SSH WiFI
Final test with the robot under battery power with SBC, AT324, WiFI and motors running with SSH teleoperation form keyboard
https://github.com/user-attachments/assets/86d634cf-5507-45de-8ebf-013d29c1c32a
SETUP UART ACCESS TO TTYS0 DEBUG UART
Modify GRUB so that the operating system connects tothe serial port for access
cat /etc/default/grub
sudo nano /etc/default/grub
Edit the GRUB to make sure the following lines woirk
GNU nano 7.2
/etc/default/grub *
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`( . /etc/os-release; echo ${NAME:-Ubuntu} ) 2>/dev/null || echo Ubuntu`
#2025-11-22 Adding the serial port access via ttyS0 that I ound is the debug consol
GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0,115200n8"
GRUB_TERMINAL="console serial"
GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"
# If your computer has multiple operating systems installed, then you
# probably want to run os-prober. However, if your computer is a host
# for guest OSes installed via LVM or raw disk devices, running
# os-prober can cause damage to those guest OSes as it mounts
# filesystems to look for things.
#GRUB_DISABLE_OS_PROBER=false
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
Update grub, whatever that means
sudo update-grub
Log
sona@sona-lp-n100-8gb:~$ sudo update-grub
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.14.0-32-generic
Found initrd image: /boot/initrd.img-6.14.0-32-generic
Found linux image: /boot/vmlinuz-6.14.0-29-generic
Found initrd image: /boot/initrd.img-6.14.0-29-generic
Found memtest86+ 64bit EFI image: /boot/memtest86+x64.efi
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Adding boot menu entry for UEFI Firmware Settings ...
done
Reboot and see if you bricked the OS
sudo reboot
So, it works and doesn't. On the screen I see unsupported port speed and on the serial terminal on the host I see that at 9600 I can see the dump
I redid the instruction setting the speed to 115200
2025-11-22-T0900 Test Board 2
I powered bypassing the jack and the power button does not work
I connected jack, disconnected uC serial, and it takes a while to power on
I see nothing on the debug uart ttys0
Screen shows no sign of activity
A single click on the power button will shut down the SBC
Shutdown doesn't work
2025-11-22-T1041 Test Board 1
Powered
Checksum error a few reboots
Powered on turn on screen
tested debug uart, see nothing