isr_example.ino

//interruption
// on arrete ce qu'on faisais pour aller traiter l'évenement

const byte LED = 13;
const byte BUTTON = 2;

volatile int led_state = LOW;

// Interrupt Service Routine (ISR)
void pinChange ()
{
	led_state = !led_state;
	digitalWrite(LED, led_state);
} // end of pinChange

void setup () {
	pinMode (LED, OUTPUT); // so we can update the LED
	digitalWrite (BUTTON, HIGH); // internal pull-up resistor
	attachInterrupt (0, pinChange, CHANGE); // attach interrupt handler
} // end of setup

void loop ()
{
// loop
// doing
// nothing
}