int boton1 = 23;
int rele = 2;

void setup(){
  pinMode(boton1, INPUT_PULLDOWN);
  pinMode(rele, OUTPUT);

}
void loop (){
  if(digitalRead(boton1) == HIGH){
    delay (50);
    digitalWrite(rele, HIGH);
  }else{
    digitalWrite(rele, LOW);
  }
}