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A mod to make an "Easy Button" into a HID input.
The board is a Leonardo.
* 2k resistor in 5v
* attach the resistor to both:
* digital pin 2
* one side of the push button
* the other side of the push button to GND
* an LED in pin 13/GND
The push action will enable the LED
Created by W Travis Jones - All rights reversed (public domain)
#include <HID-Project.h>
#include <HID-Settings.h>
//#define DEBUG 1
const int buttonPin = 2; // the number of the pushbutton pin
const int ledPin = 13; // the number of the LED pin
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
long lastDebounceTime = 0; // the last time the output pin was toggled
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);
#ifdef DEBUG
void loop() {
int reading = digitalRead(buttonPin);
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 = HIGH;;
} else {
ledState = !HIGH;
// set the LED:
digitalWrite(ledPin, ledState);
lastButtonState = reading;