Fizzy Badge

A custom LED badge using a HUB75 display and a Pimoroni Interstate 75

Renderer

The multi-core renderer built for this project is designed to make compositing between effects as smooth as possible.

Here's what the general flow looks like:

core0                           core1
rendering                       pick next effect and wait
[time to render] -------------> [interrupt]
compositing + rendering         rendering
[transfer control] -----------> [interrupt]
pick next effect and wait       rendering
[interrupt] <------------------ [time to render]
rendering                       compositing + rendering
[interrupt] <------------------ [transfer control]

Building

This project uses the Pico SDK and Pimoroni's Pico Libraries, so make sure to have the dependencies that those need.

Also, make sure to initialize git submodules with git submodule update --init --recursive

Outside of that, this simple command flow works to build everything:

cmake -B build .
cd build
make
cd ..

Credits

• Pico SDK
• Pimoroni's Pico Libraries
• AtomicObject's Heatshrink