How to send an int value to ESP32 as gamepad from Python or C program

[AlEnterni]

I'd like to ask if there's a way to send an int value from a Python or C program to the ESP32, while it's working as a gamepad. Specifically, I want to know if there's a method for achieving this using the existing codebase or if I would need to modify it. Any guidance on how to accomplish this would be much appreciated.

[baohuiming]

Not sure if I understand you correctly. Maybe you need to create a Bluetooth client to communicate. You can refer to NimBLE-Arduino

[lemmingDev]

Try this version

It allows you to send and receive as much info as you want over a BT Classic serial connection while using the gamepad

#111 (comment)

[AlEnterni]

Would I need to connect to the ESP32 twice then? One for it to work as a gamepad and another for data?
Thank you very much!

[lemmingDev]

You would have 2 connections
On the first connection, you would connect to the BT Classic first, and then the BLE

Next time you connect, they should both automatically connect

The BL Classic would add a serial port for sending receiving information

[LeeNX]

I was able to put together a small sketch that has NUS, which is basically BLE Serial, that could be used - #195 (comment)

Or you could also try a PR - #234
That adds Output Report Function, meaning you can send data from host OS to gamepad.

Would be best if the feature was general enough, that the game engine or game building library does not need customisation.