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8.2 IDE Arduino
8.2.1 Entrées
Il suffit d'utiliser le programme exemple « Button » en modifiant les ports de sortie et d'entrée avec le
bon numéro. La LED s'allume lorsque le bouton est actif. Suivant le paramétrage du TTP223, il est
possible d'en faire un bouton poussoir ou un interrupteur, la LED s'allumera alors lorsqu'on appui sur
le bouton ou changera d'état à chaque impulsion.
/*
Button
Turns on and off a light emitting diode(LED) connected to digital pin 13,
when pressing a pushbutton attached to pin 2.
The circuit:
- LED attached from pin 13 to ground through 220 ohm resistor
- pushbutton attached to pin 2 from +5V
- 10K resistor attached to pin 2 from ground
- Note: on most Arduinos there is already an LED on the board
attached to pin 13.
created 2005
by DojoDave <http://www.0j0.org>
modified 30 Aug 2011
by Tom Igoe
This example code is in the public domain.
https://www.arduino.cc/en/Tutorial/BuiltInExamples/Button
*/
// constants won't change. They're used here to set pin numbers:
const int
buttonPin
const int
ledPin
// variables will change:
int
buttonState
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);
}
}
= 15;
// the number of the pushbutton pin
=
16;
// the number of the LED pin
= 0;
// variable for reading the pushbutton status
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