// Blue button has bouncing simulation disabled.

#define BUTTON_PIN A1
#define LED_PIN 5

void setup() {
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP);
}

int lastState = HIGH;
void loop() {
  int value = digitalRead((BUTTON_PIN));
  if (lastState != value) {
    lastState = value;
    if (value == HIGH) {
      digitalWrite(LED_PIN, LOW);
    }
    if (value == LOW) {
      digitalWrite(LED_PIN, HIGH);
      delay(5000);
    }
  }
}