[SOLVED] Arduino NANO and interrupt on pin 6?

[b707]

@edr1924

The Arduino Uno and Nano have only 2 interrupt pins, but in the code below, an interrupt is connected to another digital pin?! To me this is not possible but what happens if this is in the code? It cannot work, true??

Why not?
Arduino Uno/Nano has two external interrupts on pins 2 & 3 - it's true.
But it's true too that the controller has an interrupts of another type - PCINT - available on all GPIOs.

Google "Arduino PCINT interrupts", for example:

Arduino Interrupt : There are more than Two external interrupts!