int buttonPin = 7;


void setup() {
pinMode(buttonPin, INPUT);

digitalWrite(buttonPin, HIGH); // activates internal pulldown and sets pin state to HIGH

Serial.begin(9600);

}

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

if (buttonState == LOW){
Serial.println("Button is pressed");
}

else{
Serial.println("Button is not pressed");
}

delay(1000);
}