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CircuitPython NeoPixel example

A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.

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Unofficial 36C3 Badge source-backed

firmware example

The project page includes a CircuitPython snippet using neopixel.mpy and board.A2 on an Adafruit Feather M4 Express to run a rainbow animation.

Badge
Unofficial 36C3 Badge
Type
firmware example
Status
source-backed
Compatibility
Unofficial 36C3 Badge plus external controller
Source
https://thomasflummer.com/projects/36c3-badge/

Badge context

Related Resources

official event wiki

36C3 wiki

Official archived 36C3 wiki source for event context, Leipzig setting, and annual four-day CCC congress framing.

Badge: Unofficial 36C3 Badge

Source trail

Evidence Sources

Chaos Communication Congress · retrieved 2026-05-15

36C3 Wiki

Official event source for 36C3 as the 2019 annual four-day CCC congress in Leipzig.

Badge: Unofficial 36C3 Badge

Thomas Flummer · retrieved 2026-05-15

Unofficial 36c3 badge

Primary project-owner technical source for the kit contents, WS2812B LED string, controller pads, Adafruit Feather M4 mounting example, and CircuitPython NeoPixel snippet.

Badge: Unofficial 36C3 Badge