Arduino Simple Buttons Library

Description

A library for the Arduino Uno to facilitate the use of external buttons.

Reference

void simple_interrupt(uint8_t pin, uint8_t trig, volatile void *flag)

Parameter	Description
pin	the number of pin that the button is connected to (can only be 2 or 3 on Arduino Uno)
trig	defines when the interrupt should be triggered (LOW, CHANGE, RISING, or FALLING)
flag	the variable whose flag should be set to true when the interrupt is triggered

boolean simple_button_press(uint8_t pin)

Parameter	Description
pin	the number of pin that the button is connected to (can only be 2 or 3 on Arduino Uno)

void simple_button_wait(uint8_t pin, boolean state)

Parameter	Description
pin	the number of pin that the button is connected to (can only be 2 or 3 on Arduino Uno)
state	the boolean state (HIGH or LOW) that the button should settle on

Example

#include "simple_buttons.h"

volatile boolean pressed;

void setup() {
	Serial.begin(9600);
	pinMode(2, INPUT);
	pressed = false;
	simple_interrupt(2, RISING, &pressed);
}

void loop() {
	if (simple_button_press(2)) {
		Serial.println("Button was pressed");
		simple_button_wait(2, LOW);
	}
}