/*  ___   ___  ___  _   _  ___   ___   ____ ___  ____  
 * / _ \ /___)/ _ \| | | |/ _ \ / _ \ / ___) _ \|    \ 
 *| |_| |___ | |_| | |_| | |_| | |_| ( (__| |_| | | | |
 * \___/(___/ \___/ \__  |\___/ \___(_)____)___/|_|_|_|
 *                  (____/    
 * www.osoyoo.com tilt sensor
 * program tutorial :http://osoyoo.com/2016/06/20/tilt-switch/
 *  Copyright John Yu
 */
// constants won’t change. They’re used here to
 // set pin numbers:
 const int buttonPin = 3; // the number of the pushbutton pin
 const int ledPin = 13; // the number of the LED pin

// variables will change:
 int buttonState = 0; // variable for reading the pushbutton status

void setup() {
 // initialize the LED pin as an output:
 pinMode(ledPin, OUTPUT);
 // initialize the pushbutton pin as an input:
 pinMode(buttonPin, INPUT);
 }

void loop(){
 // read the state of the pushbutton value:
 buttonState = digitalRead(buttonPin);

// check if the pushbutton is pressed.
 // if it is, the buttonState is HIGH:
 if (buttonState == HIGH) {
 // turn LED on:
 digitalWrite(ledPin, HIGH);
 }
 else {
 // turn LED off:
 digitalWrite(ledPin, LOW);
 }
 }