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troubleshooting.md

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Troubleshooting

These instructions are for the various problems people have run into

I power cycle the robot and the LED button to calibrate is not turning on

  • 1st resolution reinstall the firmware in itsybitsy
  • If that does not work contact a lab manager/ lab assistant

I power cycle the robot and calibrate, but motor is not running

  • One or all the motors are mostly damaged and you need to replace it.
  • Please contact a lab manager/lab assistant

I get a "Device Could Not Be Opened" Error message

  • You will need to modify your udev rules
  • First check if you have these rules.
    • Do so by running sudo ls /etc/udev/rules.d/.
    • If you do not see a a file called 81-neuronrobotics.rules here then proceed.
    • If you do see that file than it is probably something else that is causing your problem.
  • Copy / create the file 81-neuronrobotics.rules in /etc/udev/rules.d/
    • Run: sudo nano /etc/udev/rules.d/81-neuronrobotics.rules
      • Then copy the contents 81-neuronrobotics.rules from this repo.
    • Or copy from your downloads by running: sudo cp 81-neuronrobotics.rules /etc/udev/rules.d/81-neuronrobotics.rules
  • Then run sudo udevadm trigger

How to rewrite the firmware

  • First download the CURRENT.UF2 file located at https://github.com/RBE300X-Lab/RBE3001_info/blob/main/CURRENT.UF2
  • Next double tap the reset button on the itsybitsy, and a green light should appear
  • A new device should pop-up on the left side dash
  • Drag and drop the CURRENT.UF2 file to the new device
  • A window should pop-up asking saying the file exists, hit replace
  • Finally, the red light should be pulsing on the itsybitsy hold down the home button to recalibrate it.`

I get a "Firefox cannot open because it's already open" Error message:

  • run rm ~/.mozilla/firefox/<random numbers and letters>.default-release/.parentlock