void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(27, OUTPUT);
  pinMode(16, INPUT);
}

void loop() {
 int a=digitalRead(16);
 if(a==1){
  digitalWrite(27, HIGH);
  delay(1000);
}else{
  digitalWrite(27, LOW);
 }
}