Rust language bindings for ev3dev

Notice

Currently this project is not compatible with the BrickPi platform.

Usage

```rust extern crate ev3devlangrust;

use std::io::Result; use ev3devlangrust::tachomotor::{LargeMotor, TachoMotor}; use ev3devlangrust::core::MotorPort; use ev3devlangrust::colorsensor::ColorSensor;

fn main() -> Result<()> {

// Get large motor on port outA.
let mut large_motor = LargeMotor::new(MotorPort::OutA).unwrap();

// Set command "run-direct".
large_motor.run_direct()?;

// Run motor.
large_motor.set_duty_cycle_sp(50)?;

// Find color sensor. Always returns the first recognised one.
let mut color_sensor = ColorSensor::find().unwrap();

// Switch to rgb mode.
color_sensor.set_mode_rgb_raw()?;

// Get current rgb color tuple.
println!("Current rgb color: {:?}", color_sensor.get_rgb()?);

Ok(())

} ```

Cross compile for ev3 brick

1. Create Dockerfile ```dockerfile FROM ubuntu:18.04

   RUN apt update

   Install curl for rust installation

   Install g++ as buildscript compiler

   Install g++-arm-linux-gnueabi as cross compiler

   RUN apt --yes install curl g++ g++-arm-linux-gnueabi

   Instull rust for host platform

   RUN curl https://sh.rustup.rs -sSf | sh -s -- -y

   ENV PATH "$PATH:/root/.cargo/bin"

   Add stdlib for target platform

   RUN rustup target add armv5te-unknown-linux-gnueabi ```

2. Build docker image bash docker build . -t pixix4/ev3dev-rust-cross

3. Start docker image bash docker run -it --rm -v $PWD:/build/ -w /build pixix4/ev3dev-rust-cross

4. Build binary for ev3dev bash cargo build --release --target armv5te-unknown-linux-gnueabi The --release flag is optional. However, it can speedup the execution time by a factor of 30.

The target binary is now in target/armv5te-unknown-linux-gnueabi/release/libev3dev_lang_rust.rlib