Power Manifold

A six-port USB-C power supply: up to 100 W per port from one 24 V supply, with per-port control, priority-based power sharing and Home Assistant support. This repository holds the hardware (KiCad), the firmware and the documentation site.

Documentation: https://docs.powermanifold.io/

• First-time setup
• User guide
• Integrations: MQTT, Home Assistant and the HTTP API
• Hardware architecture

Repository layout

Path	Contents
hardware/backplane	Backplane KiCad project
hardware/backplane-backer	Insulating FR4 backer plate between the backplane and the rear wall
hardware/charger-module	Charger blade KiCad project
hardware/controller	Management controller card KiCad project
hardware/left-side-plate	Left chassis side plate, fabricated as a bare PCB
hardware/pcie-breakout	Pico 2 W development carrier for the management slot
hardware/status-strip	Front-panel status LED strip
hardware/libraries	Shared KiCad symbols and footprints
hardware/CAD	STEP exports of the boards
firmware/controller	Management controller firmware (RP2350) and its host tests
firmware/charger-module	Charger blade firmware (STM32G071) and its host tests
firmware/update-proxy	Cloudflare Worker that serves controller update images
docs	The documentation site (Astro and Starlight)

Each firmware directory has a short README with build commands. Its full developer documentation is in its docs/ directory and is published on the documentation site.

CI exports KiCad fabrication outputs when a board changes, and release-please cuts a release for each component.

License

Copyright 2024-2026 Michael Smith.

Part	License
Hardware designs in hardware/	CERN-OHL-P-2.0 (LICENSE-hardware)
Documentation: Markdown files (.md, .mdx), the screenshots in docs/src/assets/ and the site icon docs/public/favicon.svg	CC BY 4.0 (LICENSE-docs)
Product renders: the images in img/ and docs/public/hero.webp	None, all rights reserved
Everything else, including the firmware, the web page, the tools and the code of the documentation site	MIT (LICENSE)

Third-party material keeps its own terms:

• hardware/libraries/: symbols, footprints and 3D models, most of them from the KiCad libraries, EasyEDA and part makers.
• Third-party 3D models inside the board exports in hardware/CAD/.
• firmware/controller/lib/monocypher/: CC0 or BSD-2-Clause, see its LICENCE.md.

Libraries that the firmware builds download, such as the Pico SDK and ST's USB-PD stack, are not part of this repository. Each firmware release lists them and their licenses in its SBOM (.cdx.json).