So I've got some code that looks like this:
import pifacedigitalio as p import time p.init() while True: p.digital_write(0, 1) time.sleep(0.1) p.digital_write(1, 0) time.sleep(0.1)
As the input changes, the indicator LED switches on and off. As it does, it makes an audible clicking sound. Doesn't seem right to me! What could be causing this?