const int ledPin = 9;
const int buttonPin = 2;
void setup() {
pinMode(buttonPin, INPUT);
pinMode(ledPin, OUTPUT);
}
void loop() {
int buttonState = digitalRead(buttonPin);
if(buttonState == HIGH){
digitalWrite(ledPin, HIGH);
delay(1000);
}else{
digitalWrite(ledPin, LOW);
delay(1000);
}
}