// The incredible original bicycle indicator mk20,942 XL+ s - by Hayden Offord

void setup() {
  // put your setup code here, to run once:
pinMode(12, OUTPUT);
pinMode(10, OUTPUT);                  //my lights
pinMode(A0, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
if (digitalRead(A0) == LOW) {
digitalWrite(10, HIGH);
delay(300);
digitalWrite(10, LOW);
delay(600);
digitalWrite(4, HIGH);
delay(300);
digitalWrite(4, LOW);
delay(300);

}
}