Bash, serial I/O and Arduino

Question

So, I\'m in a bit over my head, and I feel like I\'m very close to a solution, but it\'s just not working quite yet. Here\'s my situation:

I\'m working with an Ardui

Answer 1

Maybe try some serial command line tool similar to serial-1.0.

See: Serial port loopback/duplex test, in Bash or C? (process substitution)