When I connect my UnoR3 Windows tells me:
“the USB device has malfunctioned and Windows (10) does not recognize it”.
This happened in the middle of running my application which is to read an optical encoder and switch relays depending on the encoder readout.
I have a generic 5VDC incremental encoder outputting an A and B phase to pins 2 & 3 on my Arduino.
Everything was great and then it just stopped - Boo!
Has anyone encountered this before?