An open project for a stick for air conditioners controlled by the Midea UART protocol. This repository contains a schematic and PCB layout for a Midea mini dongle. Also there is a folder for fabrication of the dongles by jlcpcb
A far from complete list of supported brands:
Thanks to Sergey V. Dudanov who created an excelent midea_ac component for ESPHome that integrates midea-like aircondititioners with Home Assistant.
This is the schematic of Midea mini dongle
All the files needed to open the design in EasyEDA are also included.
Dimensions:
- Width x Height: 49x20mm
- USB connector: +15mm
- Overall: 71x20mm
- Thickness: 1.6mm
The last 3 files can be used to order a stick from the JLCPCB factory. All that remains is to solder the radio module and the USB connector yourself.
The 3 files in the fabricarion folder is all you need to order the sticks from JLCPCB. I do not have tried other fabs.
Another midea wifi dongle
How can I tell if my air conditioner is supported or not?
None 100% answer to the question. But there is a high probability of support if your air conditioner has a USB connector, a regular place for a stick, UART is used.
What firmware would you recommend?
Initially, the stick was developed for ESPHome and Home Assistant, but it is possible to write your own firmware for your tasks and needs if you have the appropriate skills.
Is it possible to purchase a ready-made stick?
Yes, you can write me to my at e-mail.