any reason to use espressif/arduino-esp32/libraries/BLE over this library or esp-nimble-cpp?

[mhaberler]

trying to navigate the maze - my current belief is:

• use espressif/arduino-esp32/libraries/BLE if you need BT Classic - will not work with BLE5 (?)
• use NimBLE-Arduino if you dont, or need BLE5 functions
• use esp-nimble-cpp if using esp-idf pure or esp-idf with Arduino as component

I gave a NimBLE-Arduino app a shot and massaged it to build with espressif/arduino-esp32/libraries/BLE but it turned out BLEDevice->start() is blocking

from the OpenMQTTGateway setup I conclude NimBLE-Arduino is the way to go?

thanks, Michael

[h2zero]

Hi @mhaberler you are correct, use esp-nimble-cpp when working in esp-IDF and this repo otherwise.

If you need classic Bluetooth then you will need to use the espressif lib/bluedroid stack and that's only support on the original esp32

[mhaberler]

with 'original esp32' you mean the extensa architecture?

lib/bluedroid does not support the RISC-V variants?

[h2zero]

That is correct, only the xtensa variant has BT classic. You can use bluedroid with ble as well but that isn't as efficient