Arduino Timer Interrupts - Explained with Timer1 and Timer2 Examples
GitHub - khoih-prog/TimerInterrupt: This library enables you to use Interrupt from Hardware Timers on an Arduino, such as Nano, UNO, Mega, etc. It now supports 16 ISR-based timers, while consuming only 1
Arduino Mega 2560 Pinout
Arduino Pin Change Interrupts – The Wandering Engineer