bluepad32 VS btstack

Details about the project here: https://gitlab.com/ricardoquesada/bluepad32

You could look into the Bluepad32 library. It defines the boards and controllers it supports.

At least for Bluepad32, they specifically do not support any ESP32 variants and I'm not aware of any others that do.

This library might be useful to you. I plan to use it for a similar purpose, but my remote is broken, so I need to get myself a new one before I can fully verify that the library works

Maybe check out bluepad32 and use a common gaming console controller?

The firmware is here: https://github.com/ricardoquesada/bluepad32

> - 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.