Blinking An LED With Rust

Blinking a LED with Rust

Use sysfs_gpio

This following program blinks an LED on and off every 2 seconds

extern crate sysfs_gpio;

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

fn main() {
    let my_pin = Pin::new(68);
    println!("{:?}", my_pin);

    my_pin.with_exported(|| {
        my_pin.set_direction(Direction::Out).unwrap();
        loop {
            my_pin.set_value(0).unwrap();
            sleep(Duration::from_millis(1000));
            my_pin.set_value(1).unwrap();
            sleep(Duration::from_millis(1000));
        }
    }).unwrap();
}

Success!

Resources

http://rust-embedded.github.io/rust-sysfs-gpio/sysfs_gpio/index.html

Adding racer support to Atom

rustup component add rust-src

sudo cargo install racer

Set the following:

• bin_dir: /home/cwoodall/.cargo/bin/racer
• src_dir: /home/cwoodall/.multirust/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/
• optional cargo dir: /home/cwoodall/.cargo

Adding build_deploy script

Builds, and then syncs the build to the beagle bone. Afterwards it runs the program, when exiting the terminal it kills the program if it did not exit elegantly when the ssh terminal was closed.

cargo build --target arm-unknown-linux-gnueabihf
rsync target/arm-unknown-linux-gnueabihf/debug/rusty-nail root@beaglebone.local:~/rusty-nail
ssh root@beaglebone.local ./rusty-nail
ssh root@beaglebone.local pkill -9 rusty-nail

Future Items/Resources

Use toml-rs to configure pin mapping for the program.