ESP32-BLE-Gamepad VS rr_controller

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

SPI or I²C reduces the number of wires, but does make the software a bit more complex. Look at rr_controller for an example with I²C

I´ll try it, does it use the same code as rr_controller (https://gitlab.com/realrobots/rr_controller)? and thanks for sharing.

Found it, RealRobots was it... Video: https://www.youtube.com/watch?v=yAuzYRg4N38&ab_channel=realrobots and Github: https://gitlab.com/realrobots/rr_controller

Basically you just wire up all your buttons and knobs to an Arduino Pro Micro or an ESP32 microcontroller, upload the firmware then run the rr_configurator GUI to map and calibrate your controls for USB or bluetooth input. It's all free and open source so have at it.

Keep an eye on this repo as it'll be updated with the encoder functionality in the next couple of days.