Xiaomi Mijia UART Adapter Board
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A compact adapter board using for easy flashing of multiple Xiaomi LYWSD03MMC sensors.
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Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial
This compact adapter board simplifies the process of flashing multiple devices by using three pogo pins to connect to the necessary contacts. Simply solder once, and let the pogo pins do the rest.
You'll need three pogo pins for this build. I used these: https://www.amazon.de/dp/B07WP196KW
The alternative Zigbee firmware for the Xiaomi LYWSD03MMC Bluetooth temperature and humidity sensor is available here: https://github.com/devbis/z03mmc
For added flexibility, I've included the FreeCAD file, so you can easily adjust the design if you’re using different pins.