Case study

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.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-08

Stars: 173
Last commit: 2026-10-22
Language: C++

GitHub data as of 2026-11-09

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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.

Cite

BibTeX

@misc{hu-058-esphome-case,
  title = {{HU-058D WiFi clock: reconstructing its LED display interface}},
  howpublished = {\url{https://github.com/misterblack1/HU-058_ESPHome}},
  url = {https://github.com/misterblack1/HU-058_ESPHome},
  urldate = {2026-11-08},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/hu-058-esphome-case/}}
}

Plain text

HU-058D WiFi clock: reconstructing its LED display interface. https://github.com/misterblack1/HU-058_ESPHome (accessed 2026-11-08). Awesome REA entry: https://awesomerea.org/resources/hu-058-esphome-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · misterblack1/HU-058_ESPHome · Revision ceced3c
docs/aip33628-protocol.md GitHub · misterblack1/HU-058_ESPHome · Revision ceced3c
docs/display-map.md GitHub · misterblack1/HU-058_ESPHome · Revision ceced3c
LICENSE GitHub · misterblack1/HU-058_ESPHome · Revision ceced3c