Learn how to use the ESP32 BLE (Bluetooth Low Energy )on Arduino IDE. Discover ESP32 BLE Bluetooth Arduino examples. BLE Full Guide
electropeak.com
Does your board work in Arduino for such BLE examples ?
Yes. BLE works fine but Classic BT isn't implemented. I did not expect that ('till then to me "all" modern BT-chips can do BT, maybe as a plus BLE).
Just made an example using the Arduino example code (inline C) and
Erel's BLE example Works fine. Are you interested in it? Will upload it then.
Using Wifi or SPIFF with BLE seems to be a problem on all ESP's (see my thread in the B4R-questions forum). Even using SPIFFS+BLE crashes the ESP.