https://github.com/simonprickett/rustpitrafficlights

Raspberry Pi Traffic Lights Demo with Rust.
https://github.com/simonprickett/rustpitrafficlights

gpio low-voltage-labs raspberry-pi rust

Last synced: about 1 month ago
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Raspberry Pi Traffic Lights Demo with Rust.

• Host: GitHub
• URL: https://github.com/simonprickett/rustpitrafficlights
• Owner: simonprickett
• License: mit
• Created: 2021-11-06T20:00:23.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2022-02-11T19:51:22.000Z (almost 3 years ago)
• Last Synced: 2024-10-29T15:49:10.321Z (3 months ago)
• Topics: gpio, low-voltage-labs, raspberry-pi, rust
• Language: Rust
• Homepage: https://simonprickett.dev
• Size: 8.79 KB
• Stars: 2
• Watchers: 3
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Experiments with Low Voltage Labs Traffic Lights on Raspberry Pi with Rust

Let's look at how to control the Raspberry Pi's GPIO pins using the Rust programming language, and the [Low Voltage Labs traffic light LEDs](https://lowvoltagelabs.com/products/pi-traffic/).

For a complete description of how this code works, and a shopping list of things you'll need to make it run on a Raspberry Pi, check out the article on my website... TODO LINK TO FULL ARTICLE

We'll also use the [`rust_gpiozero` crate](https://crates.io/crates/rust_gpiozero) to control the state of the GPIO pins.

## Attaching the Traffic Lights

Attach the traffic lights so that they are connected to GPIO 9, 10, 11 ([Broadcom/BCM pin numbering](https://pinout.xyz/)).

## Install Rust

Installing Rust also installs [Cargo](https://doc.rust-lang.org/book/ch01-03-hello-cargo.html), a build system and package manager for Rust projects.

Follow the installation process [here](https://www.rust-lang.org/tools/install), which at the time of writing looks like this:

```bash

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

```

## Clone, Compile and Run the Code

First, clone this repository:

```bash

$ git clone https://github.com/simonprickett/rustpitrafficlights.git

```

Then `cd` into the `rustpitrafficlights` folder and run the code:

```bash

$ cd rustpitrafficlights

$ cargo run

```

If all is well and the traffic lights are connected correctly, they should start to display the UK traffic light sequence (red, red & yellow, green, yellow, red).  Exit the program by pressing `Ctrl+C`.

If you don't see any lights, make sure that your traffic lights are connected to the expected GPIO pins.