The BLE module within mbed OS offers a high level abstraction for using Bluetooth Low Energy on multiple platforms.
This documentation describes the internal structure of mbed (BLE_API)[https://github.com/armmbed/ble]. It was automatically generated from specially formatted comment blocks in BLE_API's source code using Doxygen. (See http://www.stack.nl/~dimitri/doxygen/ for more information on Doxygen).
For getting started with BLE on mbed, check our (introduction page)[https://docs.mbed.com/docs/ble-intros/en/latest/].
For mbed OS examples using BLE, check (this repository)[https://github.com/armmbed/ble-examples]. For mbed-classic examples, refer to (code under mbed.org)[https://developer.mbed.org/teams/Bluetooth-Low-Energy/code/].