Version 1.1.0 of the library has been released. We add support for the ATmega2561 and 1281 chips, with pinouts defined from the MCUdude/MegaCore project. Code donations by Kizmit99. Plus, a ...

but instead I found such an thorough and well thought-through answer on StackExchange that I thought I had to point it out. So, t0 the question: What is AVR Arduino interrupt latency? And how can it ...