Tilt Module

<syntaxhighlight lang="c"> /*

Tilt

Turns on and off a T010111 LED Module connected to O0 (digital  
pin 11), triggered by a T000190 Tilt Sensor attached to I0 (analog pin 0).

created 2005
by DojoDave <http://www.0j0.org>
modified 17 Jun 2009
by Tom Igoe
modified 7 dec 2010
by Davide Gomba

This example code is in the public domain.

*/

#define O0 11
#define O1 10
#define O2 9
#define O3 6
#define O4 5
#define O5 3
#define I0 A0
#define I1 A1
#define I2 A2
#define I3 A3
#define I4 A4
#define I5 A5

// constants won't change. They're used here to // set pin numbers: const int tiltPin = I0; // the number of the Tilt Sensor pin const int ledPin = O0; // the number of the LED pin

// variables will change: int tiltState = 0; // variable for reading the tilt Sensor status

void setup() {

 // initialize the LED pin as an output:
 pinMode(ledPin, OUTPUT);      
 // initialize the tilt Sensor  pin as an input:
 pinMode(tiltPin, INPUT);     

}

void loop(){

 // read the state of the tilt Sensor  value:
 tiltState = digitalRead(tiltPin);

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

}

</syntaxhighlight>