MTdoubleButton: Example 1
Event management for Uno, Nano, Mega

Turn off with a double click

A button is connected between A0 and GND. The program will light the LED_BUILTIN LED on double click and turn it off on a single click.

Complete program recommended

This program is completely under interruption, and releases loop which can be used to do something else.

// This program lights an LED if you double click and turn off the LED
// on a single click.

#include <MTobjects.h> // V1.0.6 See http://arduino.dansetrad.fr/en/MTobjects

const uint8_t PIN_BUTTON = A0; // Button wired between A0 and GND


void turnOn(void) // Call on double-click
{
  digitalWrite(LED_BUILTIN, HIGH); // Turn on
}

void turnOff(void) // Call on simple-click
{
  digitalWrite(LED_BUILTIN, LOW); // Turn off
}

MTdoubleButton Bouton(PIN_BUTTON, turnOn, turnOff); // Implementation of the button



void setup()
{
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop(){}