I have a damaged Arduino Uno (I suspect I did something stupid like trying to drive a DC motor from it): it is detected when I connect it to the computer but I cannot push anything to it (programmer is not responding) and it fails the loopback test. According to the support docs,, “If it [loopback test] fails, your board is damaged beyond economical repair and should be replaced.”
I am curious if there is any way of fixing, recycling or repurposing either the full board or some of its components - I don’t like things going to waste. I have a bunch of other working boards (two Uno R3s, as well as some Raspberry Pis and ESP32).
If anything, I’d be happy to do a surface soldering exercise, especially if it’s something like a voltage regulator.
What have people done with their damaged Arduinos and are there any tips for going beyond the loopback test to diagnose the problem?