int pin = 13;
int state = LOW;
void setup(){
pinMode(pin, OUTPUT);
attachInterrupt(0, blink, RISING);
Serial.begin(9600);
}
void loop(){
digitalWrite(pin, state);
}
void blink()
{
state = !state;
Serial.println("button clicked");
}
转载于:https://my.oschina.net/tangkikodo/blog/142995