Snippet to on/off from sensor receiving

led_onoff.arduino

const int ProxSensor = 2;

void setup() {
  // put your setup code here, to run once:
  pinMode(13, OUTPUT);
  pinMode(ProxSensor,INPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (digitalRead(ProxSensor) == HIGH) {
    digitalWrite(13, HIGH);
  } else {
    digitalWrite(13, LOW);
  }
}