View Arduino Mega Interrupt Pins Pictures. Type of transition to trigger on, e.g. Isr:the isr to call when the interrupt occurs;

Arduino Hardware Interrupts Programming And How To Use Them
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Arduino uno have two interrupt ports and arduino mega2560 have six interrupt ports named as. Or is there another way to do it without interrupts? However, only pins 2, 5, 7, 8, 10, 11, 12, 13 work with change.

Only some of them have the functionality enabled.

The number of the interrupt. On the arduino mega we have 6 timers and 15 pwm outputs: Arduino interrupts pins are using digital pins. Only some of them have the functionality enabled.