Turn LEDs on/off using switch button

<br />


Basic Example to turn LEDs on/off using the built-in switch buttons of SensorAktor-Shield.


/* switch leds

 *
 * turn LEDs on/off using switch buttons
 *

 * SensorAktor Workshop
 * Lab3 2008
 * Kunsthochschule fuer Medien Koeln
 * Academy of Media Arts Cologne
 * http://interface.khm.de

 * pin mapping SensorAktor Shield
 * import SensorAktor.h to get already defined mapping
 *
 * analog inputs: analog0 = pin0, analog1 = pin1, analog2 = pin2,
 * analog3 = pin3, analog4 = pin4, analog5 = pin5
 * built-in poti: poti = pin5
 * amplified input: mic = pin0
 * switches: switch1 = pin1, switch2 = pin2, switch3 = pin3
 * leds: led1 = pin3, led2 = pin5, led3 = pin6
 * power outs: out1 = pin3, out2 = pin5, out3 = pin6
 * motor outs: motor1_1 = pin8, motor1_2 = pin13, motor2_1 = pin11, motor2_2 = pin12
 * motor pwms: pwmMotor1 = pin10, pwmMotor2 = pin9
 * servo outs: servo1 = pin2, servo2 = pin4, servo3 = pin7

 */

// import sensor aktor library for pin mapping
#include <SensorAktor.h> 

// this block is executed one time when programm starts
void setup(){

  // set pin modes
  pinMode(led1,OUTPUT);
  pinMode(led2,OUTPUT);
  pinMode(led3,OUTPUT);
  pinMode(switch1,INPUT);
  pinMode(switch2,INPUT);
  pinMode(switch3,INPUT);

  // turn on pullup resistors for switch buttons
  digitalWrite(switch1, HIGH);
  digitalWrite(switch2, HIGH);
  digitalWrite(switch3, HIGH);

}

// this block is executed in a loop after setup is called one time
void loop(){

  // using switch buttons to turn LEDs on/off
  digitalWrite(led1,digitalRead(switch1));
  digitalWrite(led2,digitalRead(switch2));
  digitalWrite(led3,digitalRead(switch3));

}


To use the switch buttons you have to turn on the pullup resistors for these pins.


  pinMode(switch1,INPUT);
  pinMode(switch2,INPUT);
  pinMode(switch3,INPUT);

  // turn on pullup resistors for switch buttons
  digitalWrite(switch1, HIGH);
  digitalWrite(switch2, HIGH);
  digitalWrite(switch3, HIGH);


You can find more informations about pulling resistors here:

http://www.arduino.cc/en/Tutorial/AnalogInputPins


Files needed

Since Arduino 0015 there are some problems with the old “SensorAktor.h” file.

Use this one instead.


SensorAktor.zip

switchleds.zip