# HU-058D WiFi clock: reconstructing its LED display interface

> The HU-058D WiFi clock investigation reconstructs how its two AiP33628 drivers control a 33-LED RGB display. Logic-analyzer captures of stock behavior inform the COM and SEG map, while protocol notes describe 30-bit frames and latch timing. ESPHome and standalone ESP32 firmware drive the panel through the recovered interface.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-08
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/misterblack1/HU-058_ESPHome>
- Primary source: <https://github.com/misterblack1/HU-058_ESPHome/blob/ceced3c44127c470812991a915b73956226269b7/README.md>
- Catalog page: <https://awesomerea.org/resources/hu-058-esphome-case/>
- Record JSON: <https://awesomerea.org/resources/hu-058-esphome-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/hu-058-esphome-case/index.md)

## Requirements & limits

- **Prerequisites:** Requires an HU-058D or related clock panel and a wired ESP32 for the replacement firmware.
- **Prerequisites:** ESPHome firmware requires ESPHome 2026.8.0 or newer and Python 3.11 or newer.
- **Scope:** The buzzer, light sensor, and NTC thermistor are outside the firmware's scope.
- **License:** Original work is dedicated to the public domain under CC0 1.0; the Unlicense applies if that dedication is ineffective. ESPHome-derived code remains under GPLv3.

## Primary sources

1. <https://github.com/misterblack1/HU-058_ESPHome/blob/ceced3c44127c470812991a915b73956226269b7/README.md>
2. <https://github.com/misterblack1/HU-058_ESPHome/blob/ceced3c44127c470812991a915b73956226269b7/docs/aip33628-protocol.md>
3. <https://github.com/misterblack1/HU-058_ESPHome/blob/ceced3c44127c470812991a915b73956226269b7/docs/display-map.md>
4. <https://github.com/misterblack1/HU-058_ESPHome/blob/ceced3c44127c470812991a915b73956226269b7/LICENSE>

## More in Protocols

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.