@iiot2k/gpiox

Raspberry Pi gpiox library

Thanks for the coffee !! 😁

Installation

npm install @iiot2k/gpiox

or add in your package.json:

"dependencies": {
    "@iiot2k/gpiox": "latest"
},

View on npm📌
View on GitHub📌
Report any issues here📌

Detail

This library works on Raspberry Pi with 32bit or 64bit OS
Works also on Raspberry Pi 5

Functions

Read/write/toggle/blink gpio
Watch gpio changes
PWM output
High speed gpio counter
Reads temperature from sensors (DS18B20) connected on gpio

Node.js API

Node.js API functions are explained in document API.md
Node.js examples are on examples folder.

// node.js example turns output pin 20 on and after 3000ms off
"use strict";

const gpiox = require("@iiot2k/gpiox");

gpiox.init_gpio(20, gpiox.GPIO_MODE_OUTPUT, 1);

setTimeout(() => {
    gpiox.set_gpio(20, 0);
    gpiox.deinit_gpio(20);
}, 3000);

C++ API

This library uses C++ addon modules as interface to hardware.
Therefore, there is also a C++ interface to the drivers.
Unfortunately the C++ addon modules are not open source.
I provide the C++ static link libraries.
But if you are interested in the sources, I can send them to you.
Please send me an email with your name to iiot2k@gmail.com
I can only provide limited support for the C++ addon modules sources.

I have shown some C++ examples in the cpp directory and on GitHub📌
The C++ API functions are described in the header file gpiox_lib.h

// C++ example turns output on and after 3000ms off

#include <stdio.h>

#include "gpiox_lib.h"

void timeout_callback()
{
    gpiox::set_gpio(20, 0);
    gpiox::deinit_gpio(20);
}

int main()
{
    gpiox::init_gpio(20, gpiox::GPIO_MODE_OUTPUT, 1);
    gpiox::set_timeout(timeout_callback, 3000);

    return 0;
}

iiot2k / gpiox