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87 lines
1.8 KiB
87 lines
1.8 KiB
5 years ago
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/*
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DESCRIPTION
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====================
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Example of the bounce library that shows how to retrigger an event when a button is held down.
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In this case, the debug LED will blink every 500 ms as long as the button is held down.
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Open the Serial Monitor (57600 baud) for debug messages.
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*/
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// Include the Bounce2 library found here :
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// https://github.com/thomasfredericks/Bounce2
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#include <Bounce2.h>
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#define BUTTON_PIN 2
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#define LED_PIN 13
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// Instantiate a Bounce object
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Bounce debouncer = Bounce();
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int buttonState;
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unsigned long buttonPressTimeStamp;
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int ledState;
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void setup() {
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Serial.begin(57600);
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// Setup the button
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pinMode(BUTTON_PIN,INPUT);
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// Activate internal pull-up
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digitalWrite(BUTTON_PIN,HIGH);
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// After setting up the button, setup debouncer
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debouncer.attach(BUTTON_PIN);
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debouncer.interval(5);
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//Setup the LED
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pinMode(LED_PIN,OUTPUT);
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digitalWrite(LED_PIN,ledState);
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}
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void loop() {
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// Update the debouncer and get the changed state
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boolean changed = debouncer.update();
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if ( changed ) {
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// Get the update value
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int value = debouncer.read();
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if ( value == HIGH) {
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ledState = LOW;
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digitalWrite(LED_PIN, ledState );
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buttonState = 0;
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Serial.println("Button released (state 0)");
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} else {
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ledState = HIGH;
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digitalWrite(LED_PIN, ledState );
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buttonState = 1;
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Serial.println("Button pressed (state 1)");
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buttonPressTimeStamp = millis();
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}
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}
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if ( buttonState == 1 ) {
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if ( millis() - buttonPressTimeStamp >= 500 ) {
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buttonPressTimeStamp = millis();
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if ( ledState == HIGH ) ledState = LOW;
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else if ( ledState == LOW ) ledState = HIGH;
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digitalWrite(LED_PIN, ledState );
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Serial.println("Retriggering button");
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}
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}
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}
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