ESP32-BLE-Gamepad VS btstack

Trying to find premade code to make an xbox style controller for Steam. I have looked into it before but what I found isn't exactly clear. https://github.com/lemmingDev/ESP32-BLE-Gamepad This was the code I found but I don't understand what they define as a "hat" and how you're supposed to get 128 buttons.

Conveniently, I had a spare ESP32 board sitting in a drawer (which is not an Arduino and technically makes the title of this post innacurate, I know), and a quick Google search showed that some legendary human being had already done the hard work of writting an Arduino library to create Bluetooth wireless gamepads on ESP32. The stage was set!

Absolutely! It's quite a bit more complicated, but someone else has already put their code on GitHub for one: https://github.com/lemmingDev/ESP32-BLE-Gamepad

I simply want the controller to be able to function as a single full-fledged controller (with all the buttons of a regular controller) but also have the functionality of being split into two smaller/simpler controllers. For a smaller handheld, I was able to create a simple bluetooth controller using an ESP32-WROOM-32 and the ESP32-BLE-Gamepad library by lemmingDev.

Googling ESP32 Bluetooth game pad shows that there are libraries so I assume it's possible.

I used the ESP32-BLE-Gamepad library and changed up the flight controller example code slightly. I’d appreciate any advice, thanks!

Yes, with an ESP32 and the Bluetooth LE Gamepad library.

This is the library I used.

Have you looked at this one? https://github.com/lemmingDev/ESP32-BLE-Gamepad

> - From https://www.cnx-software.com/2023/02/11/raspberry-pi-pico-w-... :

>> The Raspberry Pi Pico W board was launched with a WiFi 4 and Bluetooth 5.2 module based on the Infineon CYW43439 wireless chip in June 2022

> bluekitchen/btstack is the basis for the Bluetooth support in Pi Pico SDK 1.5.0+: https://github.com/bluekitchen/btstack

> /? "pi pico" bluetooth 5.2 [BLE] https://www.google.com/search?q=%22pi+pico%22+bluetooth+5.2

What is required is a Bluetooth module that uses HCI over UART. You can then take a Bluetooth stack library like BTstack https://github.com/bluekitchen/btstack and talk with the module with the Arduino's UART

https://github.com/bluekitchen/btstack/tree/master/example/h...

If you are using windows then simulating a Bluetooth keyboard is tricky because the windows Bluetooth classic stack is to high level and the windows Bluetooth LE stack explicitly forbids it. This means you have two options: * You use a third party Bluetooth stack. This involves replacing the driver of you Bluetooth dongle and makes it inaccessible for "normal" Bluetooth. I personally used btstack for this and it worked pretty well. * You buy a small microcontroller (ca. 5-30€) that acts as a bridge. Should not be too difficult if you can find a Bluetooth tutorial or example for your MC.

I have the most common esp32s WROOM board, and I want to make an HFP unit, not HFP ag. I had been googling for it for a considerable time and I already found the hfp_hf example for esp-idf. However, it doesn't really work for some reason with my phone. It's being recognized as a handsfree device, and I can send the AT commands, but my phone still uses the phone's speaker on a phone call, and sometimes the dialer app hangs when I want to select the handsfree device. This person who also attempted that mentions it in his youtube video and he uses BTstack api ported to esp32 instead. I can't get that to work either because I don't quite understand what IDE and toolchains he used (I tried importing everything to esp-idf eclipse, didn't work). I also found the last link you shared, but will that work with my board? It says it needs a Lyra board.

You want the ESP32 to use the phone as an access point over Bluetooth? This can’t be done with the default Bluetooth stack but https://github.com/bluekitchen/btstack is a Bluetooth stack for various platforms and has PAN support. This isn’t to say that it is easy though, I don’t think it has direct support for Arduino, you’ll have to use the ESP32 SDK directly. So this can be done but the learning curve might be to steep considering your experience.