const int buttonPin = 7; 
const int redPin = 8;

int buttonState = 0;
bool redledState = 0;

void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
  buttonState = digitalRead(buttonPin);


  if (buttonState == LOW) {
    redledState = !redledState;
    digitalWrite(redPin, redledState ? HIGH : LOW);
    delay(250);

  }
}