Android-DFU-Library VS NimBLE-Arduino

Its a highly common soc nrf52810. Read more about and development on www.nordicsemi.com

**Company:** Nordic Semiconductor https://www.nordicsemi.com/

And the second important part, the communication chip, is very often a product of Nordic Semiconductors: https://www.nordicsemi.com/

We love Nordic Semiconductor, we have used their Bluetooth SoC’s in several of our client’s projects. Their toolchain is easy to work with, their example code is invaluable, and their support is some of the best in the industry. Not to mention they are one of the most popular brands of Bluetooth radios.

I am following this company closely, and I find it rather curious how little expectation or knowledge there is about it, considering the medium to long term expansion they have planned. For those who doesn't know, Nordic Semiconductor (NDCVF, NOD - Current Share price: $33) is a Norwegian semiconductor company specialised in wireless technology for IoT (Bluetooth and now Wi-Fi).

So far we've managed to connect via bluetooth (no pairing) through a ble framework for ble devices in unity, however this framework does not manage pairing and flashing. Pairing is a great to have but flashing is a must have, all over bluetooth. We've been looking into the Dfu library as well as the partial flashing library from microbit.

The code will be built using the esp32-nimble crate. The esp32-nimble crate is a wrapper for the ESP32 NimBLE Bluetooth stack. The crate is inspired by the NimBLE-Arduino project. NimBLE is an open source BLE stack fully compliant with the Bluetooth specification providing both host and controller functionalities. NimBLE is also part of the Apache MyNewt project. The ESP-IDF supports only a port of the NimBLE host stack and provides a different controller implementation.

I originally tried using the ESP32 blue BLE library. I ran out of memory. Switched to NimBLE-Arduino, an Arduino fork of Apache NimBLE, a replacement open-source BLE library https://github.com/h2zero/NimBLE-Arduino https://www.arduino.cc/reference/en/libraries/nimble-arduino/ https://h2zero.github.io/esp-nimble-cpp/md__migration_guide.html#autotoc_md46

I like NimBLE-Arduino, and this has a BLE client example that you can adapt to your needs, including both regular reads and notifications. Note that this isn't pure C++, this is using Arduino. There's also a version for use with ESP-IDF: esp-nimble-cpp, with a corresponding BLE client example. The examples for both projects are heavily commented and quite easy to follow.

On the ESP32 side, I use this repo for Bluetooth connectivity: https://github.com/h2zero/NimBLE-Arduino

u/Marijn_fly's is the cleanest solution I can think of but if you're ready to get your hands dirty, there's another BLE library called NimBLE that's massively smaller that the one you're using. Plus I'm an incompetent noob and I find it being easier to work with :D

I recently also looked into this and the NimBLE GitHub and examples helped me a lot to implement this. Source: https://github.com/h2zero/NimBLE-Arduino

Try to implement a driver myself using the NimBLE stack. However, I don't know where to start working with a BLE gamepad.

You indeed need an advertisement packet scanner. Arduino version could be e.g. this: https://github.com/h2zero/NimBLE-Arduino/blob/master/examples/BLE_Beacon_Scanner/BLE_Beacon_Scanner.ino