- Does the wemos board show up in device manager?
- Yes
- Is it assigned a port?
- Yes -> Try resetting the board, unplugging the robot and power cycling everything
- No -> Something is wrong with the drivers, try power cycling
- Still not working -> Reinstall the drivers
- Is it assigned a port?
- No
- Does a different tested working board show up?
- Yes -> Replace the wemos board
- No -> Try another USB cable and/or port
- Still not working -> Reinstall the drivers
- Does a different tested working board show up?
- Yes
- Check code has been uploaded
- Check code is correct
- Check wiring