CapacitiveSensor cs_4_2 = CapacitiveSensor(4,2); // 10M resistor between pins 4 & 2, pin 2 is sensor pin, add a wire and or foil if desired

void setup()
{
pinMode(12,OUTPUT);
cs_4_2.set_CS_AutocaL_Millis(0xFFFFFFFF); // turn off autocalibrate on channel 1 – just as an example
Serial.begin(9600);
}

void loop()
{
long start = millis();
long total1 = cs_4_2.capacitiveSensor(30);

if (total1 > 5000) {
digitalWrite(12,HIGH);
}
else
{
digitalWrite(12,LOW);

}
Serial.print(millis() – start); // check on performance in milliseconds
Serial.print(« \t »); // tab character for debug windown spacing
Serial.println(total1); // print sensor output 1

delay(10);                             // arbitrary delay to limit data to serial port 

}