Case study

DMR-39 Remote Bridge: reconstructing set-top-box remote control

DMR-39 Remote Bridge reconstructs remote control of the SUPER DMR-39 set-top box by probing its I2C front panel and capturing NEC infrared signals. The resulting ESP32-C3 firmware and Python tools expose mapped buttons through a web relay, with HDMI capture used to observe responses. The author reports mapping all 41 remote buttons.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 1
Last commit: 2026-06-27
Language: C++
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: A SUPER DMR-39 set-top box, ESP32-C3, and access to the demodulated IR traces; HDMI capture supports the documented observation workflow.
Limits: The author reports finding only one working key code through I2C injection before switching to IR control.
License: MIT licence.

Cite

BibTeX

@misc{dmr39-case,
  title = {{DMR-39 Remote Bridge: reconstructing set-top-box remote control}},
  howpublished = {\url{https://github.com/evnchn-agentic/dmr39}},
  url = {https://github.com/evnchn-agentic/dmr39},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/dmr39-case/}}
}

Plain text

DMR-39 Remote Bridge: reconstructing set-top-box remote control. https://github.com/evnchn-agentic/dmr39 (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/dmr39-case/

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Primary sources

README.md GitHub · evnchn-agentic/dmr39 · Revision f1d46b5