debounce.ino

#include <ardukit.h>

// constants won't change. They're used here to set pin numbers:
const int buttonPin = 2;     // the number of the pushbutton pin
const int ledPin =  13;      // the number of the LED pin
int ledState = LOW;         // the current state of the output pin

adk::Button b1(buttonPin, INPUT_PULLUP);

void on_button_press(adk::EventEmitter::event &e)
{
    ledState = ledState==LOW ? HIGH : LOW;
    digitalWrite(ledPin, ledState);
};

// void on_button_release(adk::EventEmitter::event &e)
// {
//     // turn LED off:
//     digitalWrite(ledPin, LOW);
// };

void setup()
{
    // initialize the LED pin as an output:
    pinMode(ledPin, OUTPUT);

    b1.enable();    // activate change detection
    b1.on("press", on_button_press);
    // b1.on("release", on_button_release);
}

void loop() {
    adk::run();
}

// // constants won't change. They're used here to set pin numbers:
// const int buttonPin = 2;    // the number of the pushbutton pin
// const int ledPin = 13;      // the number of the LED pin

// // Variables will change:
// int ledState = HIGH;         // the current state of the output pin
// int buttonState;             // the current reading from the input pin
// int lastButtonState = LOW;   // the previous reading from the input pin

// // the following variables are unsigned longs because the time, measured in
// // milliseconds, will quickly become a bigger number than can be stored in an int.
// unsigned long lastDebounceTime = 0;  // the last time the output pin was toggled
// unsigned long debounceDelay = 50;    // the debounce time; increase if the output flickers

// void setup() {
//   pinMode(buttonPin, INPUT);
//   pinMode(ledPin, OUTPUT);

//   // set initial LED state
//   digitalWrite(ledPin, ledState);
// }

// void loop() {
//   // read the state of the switch into a local variable:
//   int reading = digitalRead(buttonPin);

//   // check to see if you just pressed the button
//   // (i.e. the input went from LOW to HIGH), and you've waited long enough
//   // since the last press to ignore any noise:

//   // If the switch changed, due to noise or pressing:
//   if (reading != lastButtonState) {
//     // reset the debouncing timer
//     lastDebounceTime = millis();
//   }

//   if ((millis() - lastDebounceTime) > debounceDelay) {
//     // whatever the reading is at, it's been there for longer than the debounce
//     // delay, so take it as the actual current state:

//     // if the button state has changed:
//     if (reading != buttonState) {
//       buttonState = reading;

//       // only toggle the LED if the new button state is HIGH
//       if (buttonState == HIGH) {
//         ledState = !ledState;
//       }
//     }
//   }

//   // set the LED:
//   digitalWrite(ledPin, ledState);

//   // save the reading. Next time through the loop, it'll be the lastButtonState:
//   lastButtonState = reading;
// }