//Electronic circuit by Harry Maclennan

void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT);
pinMode(A2, INPUT);
pinMode(A0, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:#
  if (digitalRead(A0)== (LOW)
digitalWrite(2, HIGH);
delay(200);

digitalWrite(2, LOW);
delay(200);
}