#define led 13
#define pb 12
bool pressed = false;

void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  pinMode(pb,  INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  pressed = digitalRead(pb);
  delay(50);
  if(pressed){
    digitalWrite(led, HIGH);
  }
  else{
    digitalWrite(led, LOW);
  }
  
}