radex-rd1212

Turn on bluetooth

$ bluetoothctl

[bluetooth] power on

Installing dependencies

$ python3 -m venv env

$ source env/bin/activate

$ pip install -r requirements.txt

Setting MAC address and auth key

set MAC in .env file according to example in .env.example

MAC=AA:AA:AA:AA:AA:AA

Running

python3 main.py

Services, Characteristics, Descriptors

Cable Replacement

Cable Replacement Service - 0bd51666-e7cb-469b-8e4d-2742f1ba77cc Cable Replacement Char. - e7add780-b042-4876-aae1-112855353cc1 Configuration Desc. - 00002902-0000-1000-8000-00805f9b34fb

Pipeline

1. Write 1 byte 0x02 to Configuration Desc. (i guess this tells device to enable sending data via bluetooth)
2. Enable indicaitions for Cable Replacement Char.
3. Every time you need to read data from the device, you have to write 14 bytes 0x12, 0x12, 0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 to Cable Replacement Char.
4. and wait for notification from Cable Replacement Char.
5. Read the value you got, penultimate byte is a radiation value

apparently you are able to request data not more than 1 time in 30 seconds