rust_gpiozero

A simple interface to GPIO devices with Raspberry Pi.

This library is based on GPIOZero library.

Note: This is a work in progress. The library will eventually support embedded-hal based drivers

The idea is to get started with physical computing using Rust with little coding by hiding the underlying complexity.

Example : Blinking an LED


extern crate rust_gpiozero;
use rust_gpiozero::*;

fn main() {

// Create a new LED attached to Pin 17

let mut led = LED::new(17);

// blink the LED
// on_time: 2 seconds and off_time: 3 seconds

led.blink(2,3);

}

Example : Wait for a Button Press

extern crate rust_gpiozero;
use rust_gpiozero::*;


fn main() {
    // Create a button which is attached to Pin 17
    let button = Button::new(17);
    button.wait_for_press();
    println!("button pressed");

}

Compare this to using the crate sysfs_gpio to blink an LED on the Raspberry Pi :


extern crate sysfs_gpio;

use sysfs_gpio::{Direction, Pin};
use std::thread::sleep;
use std::time::Duration;

fn main() {
    let my_led = Pin::new(127); // number depends on chip, etc.
    my_led.with_exported(|| {
        loop {
            my_led.set_value(0).unwrap();
            sleep(Duration::from_millis(200));
            my_led.set_value(1).unwrap();
            sleep(Duration::from_millis(200));
        }
    }).unwrap();
}

Install/Use

To use rust_gpiozero, first add this to your Cargo.toml:

[dependencies]
 rust_gpiozero = "0.1.0"

Features

The following features are planned :

Support for linux-embedded-hal
Support for common devices such as Accelerometer, Temperature sensors, etc

License