Arduino touch switch using the Touchy library

sketch_touch_switch.ino

// Arduino "No hardware" touch switch
// Based on https://github.com/todbot/TouchyTouch
#include "TouchyTouch.h"
#define STATUS_LED 4
#define SENSE_PIN 12

const int touch_pin = SENSE_PIN;

// Install as TouchyTouch library in Arduino.
TouchyTouch touches ;

void setup() {
  Serial.begin(115200);
  Serial.println("TouchyTouch simpletest");
  Serial.println(F("START " __FILE__ " from " __DATE__ "\r\n" ));

  pinMode(STATUS_LED, OUTPUT);

  // Initialize Touch button
  touches.begin( touch_pin );

}

void loop() {
  touches.update();

  if ( touches.touched() ) {
    Serial.print("Pin touched ");
    digitalWrite(STATUS_LED, HIGH);
  }

  delay(10);
  digitalWrite(STATUS_LED, LOW);
}