touch sensor coding by creatjet3d

//www.creatjet3d.com
//www.tinkerguru.com

int in = 2;
int out = 13;
int state = HIGH;
int r;         
int p = LOW; 
long time = 0;     
long debounce = 200; 
void setup()
{
  pinMode(in, INPUT);
  pinMode(out, OUTPUT);
}
void loop()
{
  r = digitalRead(in);
  if (r == HIGH && p == LOW && millis() - time > debounce) {
    if (state == HIGH)
      state = LOW;
    else
      state = HIGH;
    time = millis(); 
  }
  digitalWrite(out, state);
  p = r;
}