TwoPrusTwo

Hi, if you change `attachPinChangeInterrupt` to `attachInterrupt` in lines 51 and 52 of WiegandMulti.cpp, it should work. I have tested the modified code on an Adafruit ItsyBitsy m0 (SAMD21), but...

Hi @pedroogh, These were the changes I made: Removed line 2: `#include "PinChangeInterrupt.h"` Changed line 51: `attachInterrupt(digitalPinToInterrupt(pinD0), ISR_D0, FALLING);` Changed line 52: `attachInterrupt(digitalPinToInterrupt(pinD0), ISR_D1, FALLING);` Please note that, as @jpliew...