Dobrica Pavlinušić's random unstructured stuff
Xiaomi Mijia Bluetooth Thermometer: Revision 11
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^ info https://hackaday.com/2020/12/08/exploring-custom-firmware-on-xiaomi-thermometers/ https://github.com/atc1441/ATC_MiThermometer https://github.com/pvvx/ATC_MiThermometer Xiaomi Smart LCD Screen Digital Thermometer 2 Mijia Bluetooth Temperature Humidity Sensor Moisture Meter Mijia App https://www.aliexpress.com/item/1005002401046796.html LYWSD03MMC ^ decode using gatttool https://ndimension.design.blog/2021/12/16/reading-data-from-xiaomi-mi-temperature-and-humidity-monitor-2-lywsd03mmc/ .pre root@rpi2:/home/pi# sudo hcitool lescan LE Scan ... A4:C1:38:D8:3F:9C ATC_D83F9C .pre ^ open source firmware https://github.com/bentolor/xiaomi-mijia-bluetooth-firmware ^ simple shell to send reading to influx https://github.com/dpavlin/air-quality/blob/master/ble-mijia.sh https://github.com/dpavlin/air-quality/blob/master/system/ble-mijia%40.service https://www.youtube.com/watch?v=NXKzFG61lNs ^ [Home Assistant] connected to home assistant using https://esphome.github.io/bluetooth-proxies/ get bindkey using https://atc1441.github.io/TelinkFlasher.html https://esphome.io/components/sensor/xiaomi_ble.html?highlight=xiaomi_ble#obtaining-the-bindkey .pre [core-ssh ~]$ tail -18 config/.storage/core.config_entries { "entry_id": "574243c45c4485523ec174e18cfcf1ad", "version": 1, "domain": "xiaomi_ble", "title": "Temperature/Humidity Sensor DC63 (LYWSD03MMC)", "data": { "bindkey": "a6da0c1d99200efe9c9afb8fd9a534ef" }, "options": {}, "pref_disable_new_entities": false, "pref_disable_polling": false, "source": "bluetooth", "unique_id": "A4:C1:38:90:DC:63", "disabled_by": null } ] } .pre flash new firmware to sensor https://github.com/pvvx/ATC_MiThermometer open in chrome on android to flash firmware, change announcement to BTHome, set time, disconnect to start sending data to home assistant |