This is an Arduino library that enables you attach an interrupt to any pin of Arduino Uno, Nano, Mini and other 328-based boards. The Arduino attachInterrupt() function only allows pines 2 & ~3.

Version: Arduino IDE 1.8.19, Arduino Mbed OS Nano Boards 2.8.0 Attach an input to pin 2 (e.g. button) which is high when active and high-z (disconnected) when inactive. Run the following sketch: ...