ESP32 Minimal Bluetooth Build just scanning

[SL2021-Dev]

I need to be able to use OTA but Bluetooth is bloated.
All I need is to sacn for BLE devices no more.
In the past I used...
def bt_irq(event, data): if event == _IRQ_SCAN_RESULT: print(bytes(data[4]))

Changing... lv_micropython\ports\esp32\mpconfigport.h

I am using the lv_micropython version that came in @ 2.1MB !!!!
Changing the module selection as shown above I come in @ 1.875MB
This is a 226K Lighter Build !!!
Any other combination, like above or the default, will not build.
Also... could someone explain those combinations.
Can I request NIMBLE directly??
Examples, Ideas... anythig would be appreciated !!!

[gitcnd]

See here maybe? https://github.com/orgs/micropython/discussions/12818
I'm using

"Firmware (Support for OTA)"
[v1.21.0 (2023-10-05) .bin](https://micropython.org/resources/firmware/ESP32_GENERIC-OTA-20231005-v1.21.0.bin) (latest) 

from https://micropython.org/download/ESP32_GENERIC/

[jimmo]

@SL2021-Dev You must enable MICROPY_BLUETOOTH_NIMBLE to use BLE on ESP32. Unfortunately we don't currently have a way to disable peripheral role or gatt server. (You can only disable central and/or gatt client)... the thinking there was that most devices are peripherals & servers, generally the central & client would be a phone/pc.

But I agree, it would be useful to make this more flexible. (Essentially you want just the "observer" role and no GATT support at all).

You can disable pairing & bonding. You must not disable MICROPY_PY_BLUETOOTH_USE_SYNC_EVENTS or MICROPY_PY_BLUETOOTH_USE_SYNC_EVENTS_WITH_INTERLOCK on ESP32 or it will not work correctly. Similarly you must use MICROPY_BLUETOOTH_NIMBLE_BINDINGS_ONLY because the IDF provides the NimBLE implementation.

I'm not sure what you mean by "Can I request NimBLE directly" sorry.

[SL2021-Dev]

So I set the following...

and got...

This is really disappointing I can't reduce this in any way.