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Turn LED on/off using switch button
Basic Example to turn LED on/off using one of the built-in switch buttons of SensorAktor-Shield.
/* switch LED
*
* turn LED on/off using switch button
*
* Making Things, http://makingthings.andreasmuxel.com
* Based on the SensorAktor-Basics of the Lab3, Academy of Media Arts Cologne
* http://interface.khm.
* 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(switch1,INPUT);
// turn on pullup resistor for switch button
digitalWrite(switch1, HIGH);
}
// this block is executed in a loop after setup is called one time
void loop(){
// using switch button to turn LED on/off
digitalWrite(led1,digitalRead(switch1));
}
To use the switch button you have to turn on the pullup resistor for this pin.
pinMode(switch1,INPUT); // turn on pullup resistor for switch button digitalWrite(switch1, HIGH);
You can find more informations about pulling resistors here:
http://www.arduino.cc/en/Tutorial/AnalogInputPins