fastled-wasm 1.0.5

FastLED Wasm Compiler

FastLED wasm compiler

Compiles an Arduino/Platformio sketch into a wasm binary that can be run directly in the web browser.

About

This python app will compile your FastLED style sketches into html/js/wasm output that runs directly in the browser.

Compile times are extremely fast - I've seen as low as 5 seconds but 8-15 seconds is typical.

This works on Windows/Linux/Mac(arm/x64).

Docker is required.

https://github.com/user-attachments/assets/bde26ddd-d24d-4a78-90b6-ac05359677fa

Demo

https://zackees.github.io/fastled-wasm/

Install

pip install fastled-wasm

Use

Change to the directory where the sketch lives and run

fastled-wasm --watch  # watches for changes in the ino/src file changes and re-compiles automatically.

The compiler should download, compile the target and then launch a web-browser.

About the compilation.

Pre-processing is done to your source files. A fake Arduino.h will be inserted into your source files that will provide shims for most of the common api points.

Revisions

1.0.5 - Implemented --update to update the compiler image from the docker registry. 1.0.4 - Implemented --watch which will watch for changes and then re-launch the compilation step. 1.0.3 - Integrated live-server to launch when available. 1.0.2 - Small bug with new installs. 1.0.1 - Re-use is no longer the default, due to problems. 1.0.0 - Initial release.