ESPIoTBase/lib/PushButton-1.0.0/examples/MultipleButtons/MultipleButtons.ino

/*
 * PushButton example. This shows a basic example of how to register events with a button.
 */

#include <Button.h>
#include <ButtonEventCallback.h>
#include <PushButton.h>
#include <Bounce2.h>    // https://github.com/thomasfredericks/Bounce-Arduino-Wiring

// Create an instance of PushButton reading digital pin 5
PushButton button = PushButton(5, ENABLE_INTERNAL_PULLUP);
PushButton button2 = PushButton(3, ENABLE_INTERNAL_PULLUP);
PushButton button3 = PushButton(2, ENABLE_INTERNAL_PULLUP);

void setup(){

        // Open up the serial port so that we can write to it
        Serial.begin(9600);

        // Configure the button as you'd like - not necessary if you're happy with the defaults
        button.configureButton(configurePushButton);

        // When the button is first pressed, call the function onButtonPressed (further down the page)
        button.onPress(onButtonPressed);
        button2.onPress(onButtonPressed);
        button3.onPress(onButtonPressed);

        // Once the button has been held for 1 second (1000ms) call onButtonHeld. Call it again every 0.5s (500ms) until it is let go
        button.onHoldRepeat(1000, 500, onButtonHeld);
        // When the button is released, call onButtonReleased
        button.onRelease(onButtonReleased);
        button2.onRelease(onButtonReleased);
        button3.onRelease(onButtonReleased);

        Serial.println("Boot complete");
}

void loop(){
        // Check the state of the button
        button.update();
        button2.update();
        button3.update();
}

// Use this function to configure the internal Bounce object to suit you. See the documentation at: https://github.com/thomasfredericks/Bounce2/wiki
// This function can be left out if the defaults are acceptable - just don't call configureButton
void configurePushButton(Bounce& bouncedButton){

        // Set the debounce interval to 15ms - default is 10ms
        bouncedButton.interval(15);
}

// btn is a reference to the button that fired the event. That means you can use the same event handler for many buttons
void onButtonPressed(Button& btn){

        if(btn.is(button)){
          Serial.print("Button 1");
        } else if (btn.is(button2)){
          Serial.print("Button 2");
        } else if (btn.is(button3)){
          Serial.print("Button 3");
        } else {
           Serial.print("Hmmm, no button was");
        }


	Serial.println(" pressed");
}

// duration reports back how long it has been since the button was originally pressed.
// repeatCount tells us how many times this function has been called by this button.
void onButtonHeld(Button& btn, uint16_t duration, uint16_t repeatCount){

        Serial.print("button has been held for ");
        Serial.print(duration);
        Serial.print(" ms; this event has been fired ");
        Serial.print(repeatCount);
        Serial.println(" times");

        if(button2.isPressed()){
            Serial.println("Button 2 is also pressed");
        }
}

// duration reports back the total time that the button was held down
void onButtonReleased(Button& btn, uint16_t duration){

        Serial.print("button released after ");
        Serial.print(duration);
        Serial.println(" ms");
}