MiLight Hub base PCB

Compact ESP32-C3 and nRF24L01+ based hardware for running a MiLight hub.

Overview

This repository contains a KiCad hardware design for a small standalone MiLight bridge board.

The design is built around:

• ESP32-C3-WROOM-02
• an nRF24L01+ compatible radio module (castellated SMD version)
• an on-board buck regulator for 3.3 V
• a Molex PicoBlade power input (because it's tiny and I had it in stock)
• a pogo-pad programming header for external flashing

The goal is a compact dedicated board for MiLight integration rather than a generic development board or Home Assistant add-on.

Firmware

This board is designed to run ESPHome with the hencou/mi external component for MiLight protocol handling (including FUT022 CCT support). An ESPHome configuration is included in the esphome/ directory.

The firmware provides bidirectional MiLight RF communication and integrates with Home Assistant natively via the ESPHome API.

Repository Contents

• milight-hub-base.kicad_pro: KiCad project
• milight-hub-base.kicad_sch: schematic
• milight-hub-base.kicad_pcb: PCB layout
• milight-hub-base.kicad_dru: board design rules
• fp-lib-table: project footprint library table
• lib/: local project footprints and 3D assets
• esphome/: ESPHome firmware configuration
• enclosure/: FreeCAD enclosure design and 3MF export for printing

Tooling

• KiCad project files are stored in this repository
• local footprint data is included in lib/
• generated local review artifacts are intentionally not tracked

License

The hardware design files in this repository are licensed under the CERN Open Hardware Licence Version 2 - Strongly Reciprocal (CERN-OHL-S-2.0). See LICENSE.