Case study

esp8266-midea-dehumidifier: rebuilding dehumidifier serial control

esp8266-midea-dehumidifier replaces a Midea-made dehumidifier's Wi-Fi dongle with an ESP8266 adapter that speaks to the unit over TTL serial and exposes controls through MQTT. The author says its control logic draws on Android app reverse engineering and UART traffic analysis.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-09

Stars: 191
Last commit: 2024-07-25
Language: C++
License (GitHub): Apache-2.0

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: A compatible Wi-Fi-enabled Midea-made dehumidifier and ESP8266 ESP-01 adapter hardware are required.
Prerequisites: Building and flashing require Arduino IDE with ESP8266 support and the listed Arduino libraries.
Limits: The Comfee MDDF-20DEN7 lacks the Wi-Fi button and USB port used by the guide.
License: Apache-2.0 license.

Cite

BibTeX

@misc{esp8266-midea-dehumidifier-case,
  title = {{esp8266-midea-dehumidifier: rebuilding dehumidifier serial control}},
  howpublished = {\url{https://github.com/Hypfer/esp8266-midea-dehumidifier}},
  url = {https://github.com/Hypfer/esp8266-midea-dehumidifier},
  urldate = {2026-11-09},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/esp8266-midea-dehumidifier-case/}}
}

Plain text

esp8266-midea-dehumidifier: rebuilding dehumidifier serial control. https://github.com/Hypfer/esp8266-midea-dehumidifier (accessed 2026-11-09). Awesome REA entry: https://awesomerea.org/resources/esp8266-midea-dehumidifier-case/

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Primary sources

README.md GitHub · Hypfer/esp8266-midea-dehumidifier · Revision 317e229