Tutorial about the CB and BLE communication
I try to read data from an Arduino with BLE (DFR Bluno beetle device from) but unfortunately I don't understand the documentation of the CB.
The data were written from the Arduino as ASCII-strings and can be correctly read with the IOS BLEterminal App. I also managed to detect the BLE-device in Pythonista an get the did_discover_characteristics callback. But, at this point I stuck because I don't know how to read the data string.
Hints or even code snippets are highly appreciated. Thanks for your help!