We have seen that in order to attach interrupts to a source, we use the .attachInterrupt() function, with the required arguments.
For example, for attaching the interrupts to a specific pin, we use
attachInterrupt(digitalPinToInterrupt(pin), ISR, mode);
In the same way, to detach the interrupt from a source, we can call the detachInterrupt() function. This will simply disable that particular interrupt. The recommended syntax for disabling pin interrupts is −
where pin is the pin number on which you wish to disable the interrupt.