XiaomiTemperatureSensor

Dependencies:

First install the following dependencies:

sudo apt install bluetooth libbluetooth-dev  
sudo apt-get install libglib2.0-dev  
sudo apt install python3-pip  
pip3 install pybluez  
pip3 install bluepy  
pip3 install google-auth==1.27.0
pip3 install firebase-admin==4.5.2

Bluetooth LE Scanning needs root privileges, to run the script as normal user, execute:

sudo setcap cap_net_raw,cap_net_admin+eip $(eval readlink -f `which python3`)

Fix Ubuntu 20.04 hcitool issue:

Out of the box, the BLE interface doesn't work on Raspberry Pi with Ubuntu 20.04 server. (2021.01.28)
To fix this issue execute:

sudo ln -s /lib/firmware /etc/firmware  
sudo hciattach /dev/ttyAMA0 bcm43xx 921600 -

Output should look like this:

ubuntu@ubuntu:~/git/XiaomiTemperatureSensor$ sudo hcitool dev
Devices:
ubuntu@ubuntu:~/git/XiaomiTemperatureSensor$ sudo ln -s /lib/firmware /etc/firmware
ubuntu@ubuntu:~/git/XiaomiTemperatureSensor$ sudo hciattach /dev/ttyAMA0 bcm43xx 921600 -
bcm43xx_init
Set Controller UART speed to 921600 bit/s
Flash firmware /etc/firmware/brcm/BCM4345C0.hcd
Set Controller UART speed to 921600 bit/s
Device setup complete
ubuntu@ubuntu:~/git/XiaomiTemperatureSensor$ sudo hcitool dev
Devices:
        hci0    43:45:C0:00:1F:AC

Get MAC address of the sensors:

sudo hcitool lescan --duplicate

sudo hcitool lescan

My MAC addresses:

'58:2D:34:38:3C:E2' - LYWSDCGQ
'A4:C1:38:EA:1D:CC' - LYWSD03MMC kitchen
'A4:C1:38:5B:10:E2' - LYWSD03MMC outside
'A4:C1:38:D2:7A:00' - LYWSD03MMC filament

Current status:

It can read data from LYWSDCGQ and LYWSD03MMC.

How to use it?

Setup your sensor MAC addresses in xiaomi_reader.py.

Run:

python3 xiaomi_reader.py

bash run.bash

Sources:

https://github.com/JsBergbau/MiTemperature2
https://github.com/ratcashdev/mitemp
https://github.com/erdose/xiaomi-mi-lywsd03mmc

dudasdavid/XiaomiTemperatureSensor