#define TOUCH_IN1 (13) #define LED (12) bool led_state = 0; void setup() { pinMode(TOUCH_IN1,INPUT); pinMode(LED,OUTPUT); // turn off the light digitalWrite(led,LOW); } void loop() { while(digitalRead(TOUCH_IN1) == HIGH); while(digitalRead(TOUCH_IN1) == LOW) { // toggle led led_state ^= 1; digitalWrite(led, led_state); } delay(100); }