const int ledPin = 7;
const int buttonPin = 4;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);
  Serial.begin(115200);
}

void loop() {
  int state = digitalRead(buttonPin);

  if (state == LOW) {
    digitalWrite(ledPin, HIGH);
    Serial.println("Button pressed - LED ON");
  } else {
    digitalWrite(ledPin, LOW);
    Serial.println("Button released - LED OFF");
  }


}