#include <CapacitiveSensor.h>
  CapacitiveSensor capSensor = CapacitiveSensor(4, 2);

  int threshold = 1000;
  const int ledPin = 12;

  void setup() {
    Serial.begin(9600);
    pinMode(ledPin, OUTPUT);
  }

  void loop() {
    long sensorValue = capSensor.capacitiveSensor(30);
    Serial.println(sensorValue);


    if (sensorValue > threshold) {
      digitalWrite(ledPin, HIGH);
    }
    else {
      digitalWrite(ledPin, LOW);
    }

    delay(10);
  }