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Flashing LYWSD03MMC temperature and humidity sensor

··103 words·1 min·

Xiaomi LYWSD03MMC
Xiaomi LYWSD03MMC Temperature and Humidity Sensor

Xiaomi LYWSD03MMC sensors are ideal for monitoring temperature and humidity levels in your home. They are affordable and dependable. To connect them to Home Assistant, I opted to flash them with a custom firmware available in the project linked below:

Project: ATC_MiThermometer

To summarize the process:

  • Visit this link
  • Connect the device
  • Activate it
  • Flash the custom firmware: ATC_v47.bin
  • Begin the flashing process
  • After flashing, reconnect to the device (may require some waiting time) and set a new name

For additional guidance, check out this helpful thread: Home Assistant Xiaomi Mijia LYWSD03MMC Temperature and Humidity Sensor Tutorial