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This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/Button */
// constants won't change. They're used here to
// set pin numbers:
const int buttonPin1 = 2; // the number of the pushbutton pin
const int buttonPin2 = 3;
const int ledPin = 13; // the number of the LED pin
// variables will change:
int buttonState1 = 0; // variable for reading the pushbutton status
int buttonState2 = 0;
void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(buttonPin1, INPUT);
pinMode(buttonPin2, INPUT);
}
void loop(){
// read the state of the pushbutton value:
buttonState1 = digitalRead(buttonPin1);
buttonState2 = digitalRead(buttonPin2);
// check if the pushbutton is pressed.
// if it is, the buttonState is HIGH:
if (buttonState1 == HIGH) {
// turn LED on:
digitalWrite(ledPin, HIGH);
}
if (buttonState2 == HIGH){
// turn LED off:
digitalWrite(ledPin, LOW);
}
}
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