Troubleshooting & Debugging

Otto doesn’t appear connected? Install the CH340 USB driver to see the COM port.

Can’t upload code? Check USB cable quality, or it could be the wrong uploader selected (try “old bootloader” or other Arduino nano)

Does Otto reset every now and then?  That is because of lack of power, discharged batteries, or bad connections.

Are Otto legs and feet twisted? Check that you centered and aligned your servos before assembly.