#define LED_PIN 33
#define BUT_PIN 27

bool wasButtonPressed = false;
bool isLightOn = false;

void setup() {
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUT_PIN, INPUT);

  digitalWrite(LED_PIN, isLightOn);
}



void loop() {

bool buttonPressed = digitalRead(BUT_PIN);

  if(buttonPressed && !wasButtonPressed) {
   isLightOn = !isLightOn;
    digitalWrite(LED_PIN, isLightOn);
  }

  wasButtonPressed = buttonPressed;

  delay(10);
}