I have a Nano clone here, that sporadically fails to get detected by my banana pi. This is annoying, because it works for days and hours, but fails to work randomly.
The Nano gets it's own power via
VIN and thus should have enough power.
I thought of bypassing the FTDI and make a Serial connection via 2 Wires. Alternatively: Is there a way to force the arduino to use external Power over USB. I have the feeling, the the arduino wrongly decides, that USB is the better power source and uses it, causing the errors (
device not accepting address 21, error -62 )
P.S.: There is also a touch-screen connected to the banana pi via USB. Whatever port I use, It works and never failed. Just the Nano fails from time to time.