The joystick integrated on the Raspberry Pi Sense HAT, is well integrated to Linux systems. The Sense HAT hardware provides a driver for evdev, or event device interface in the Linux kernel.

As such, the evdev file-descriptor for the joystick, can be read for events issued by someone pushing the joystick.

This library provides a thread-safe, strong-typed, high-level API for the joystick, treating it as you would any other input device using evdev.

To use this crate with the default features, add this to your Cargo.toml:

[dependencies]
sensehat-stick = "0.1"

or, to manually specify the features::

[dependencies]
sensehat-stick = { version = "0.1", default-features = false, features = ["poll"] }

By default, the linux-evdev, and poll features are included.

In default. Makes use of the evdev interface.

In default. Provides efficient-polling capabilities by implementing mio::Evented for JoyStick.

//! Prints out the events received from the joystick, in a
//! blocking fashion.
extern crate sensehat_stick;

use sensehat_stick::JoyStick;

fn main() {
    let mut stick = JoyStick::open().unwrap();
    loop {
        // This call will block the current thread until
        // an event is triggered on the joystick.
        for ev in &stick.events().unwrap() {
            println!("{:?}", ev);
        }
    }
}

For more, read the indiviual examples.