Case study

Midea IR tap: reconstructing a heat pump's inter-board commands

esphome-midea-ir-tap reconstructs the demodulated infrared commands carried between a Midea-built heat pump's display and control boards. It documents six-byte frame timing and checksum behavior, provides ESP32 capture and decoding tools, and uses ESPHome to expose local controls and state in Home Assistant.

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

Stars: 1
Last commit: 2026-08-24
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: Tested on Lennox MWMB012S4 / MPB012S4S with ESP32 DevKit v1 and ESPHome 2026.6.2.
Limits: Opening the indoor unit exposes 115 V; disconnect power before wiring. Other models and ESP32 variants are untested.
License: MIT license.

Cite

BibTeX

@misc{midea-ir-tap-case,
  title = {{Midea IR tap: reconstructing a heat pump's inter-board commands}},
  howpublished = {\url{https://github.com/lacroixdavid1/esphome-midea-ir-tap}},
  url = {https://github.com/lacroixdavid1/esphome-midea-ir-tap},
  urldate = {2026-11-08},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/midea-ir-tap-case/}}
}

Plain text

Midea IR tap: reconstructing a heat pump's inter-board commands. https://github.com/lacroixdavid1/esphome-midea-ir-tap (accessed 2026-11-08). Awesome REA entry: https://awesomerea.org/resources/midea-ir-tap-case/

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Primary sources

README.md GitHub · lacroixdavid1/esphome-midea-ir-tap · Revision 4a67abc
docs/methodology.md GitHub · lacroixdavid1/esphome-midea-ir-tap · Revision 4a67abc
LICENSE GitHub · lacroixdavid1/esphome-midea-ir-tap · Revision 4a67abc