bool led = 0;
void setup() {
pinMode(13, OUTPUT);
pinMode(2, INPUT);
}
void loop() {
if (digitalRead(2) == 1) {
delay(50);
if (digitalRead(2) == 1) {
led = !led;
digitalWrite(13, led);
while (digitalRead(2) == 1) {
}
delay(50);
}
}
}