#define ds 13
#define led 12
int ds_value ;
void setup() {
  // put your setup code here, to run once:
  pinMode(ds, INPUT);
  pinMode(led, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  
  ds_value = digitalRead(ds);
  Serial.println(ds_value);
  delay(100);
  if(ds_value==HIGH){
    digitalWrite(led, HIGH);
    delay(2000);

  }
  else{
    digitalWrite(led, LOW);
    delay(2000);
  }
}