This repository contains the code for an LED lamp that I built. It is inspired by the 37C3 Kidspace LEDs project. Is it based on an ESP32c3 mini development board and uses a WS2812B LED strip. A rainbow animation is played on the LED strip.
For this implementation I use Rust no_std, since Rust is my favorite programming language.
Here is a list of the hardware that I use:
- ESP32c3 mini development board (example from UICPAL)
- WS2812B LED strip 5V with 30 LEDs/m (I use 18 LEDs)
- 5V power supply
- some short cables
- 9 paper sandwich bags
For detailed instructions on how to build the lamp, please refer to the 37C3 Kidspace LEDs project. Please note that I use a different ESP board and a different GPIO port (see below).
First you have to install all required tools. You need Rust, obviously. I use the rustup tool to install and manage Rust. The installation of the toolchain for the ESP32 is described here. For this example I use the no_std toolchain for the ESP32c3 family. Here the tl;dr version:
rustup toolchain install nightly --component rust-src
rustup target add riscv32imc-unknown-none-elf
It also makes sense to add some Cargo tools:
cargo install cargo-generate
cargo install cargo-espflash
To build and run the code on the ESP32 you can use the following command:
cargo espflash flash --bin led-lamp --release
The code expects the LED strip to be connected to GPIO 0. If you want to use another pin, you can change it in the
main.rs file.