void setup() {
  pinMode(23, OUTPUT);
  pinMode(14, INPUT);
  Serial.begin(9600);
}

void loop() {
 int x=digitalRead(14);
 if(x==1)
 {
  digitalWrite(23, HIGH);
  Serial.println("object detected");
  delay(500);
 }
 else{
  digitalWrite(23, LOW);
  Serial.println("no object");
  delay(500);
 }
}