This is an extension / port of the initial reverse engineering work done by @phord for the Jarvis repo. Rather than build everything from scratch, I have ported most of the functionality to an ESPHome component.

Note: You almost certainly should not use this ESPHome component! Thanks to @maraid, more of the UART has been reverse engineered. This means that the PCB is out of date and can be re-factored to simply interface with the desk via UART. This theoretically also means that ESPHome can control more aspects of the desk more precisely with fewer wires and a simpler software implementation!

I am not a full time C++ programmer so the code almost certainly does look like a bad copy/paste job. That's because it largely is! I found a few different "similar" projects and modeled my code off of those.

Details on how to use the custom component with ESPHome can be found in components/fully_jarvis_cb2c.

Inspired by this thread, I created a simple PCB to interface with the desk control / motor driver. I used a more capable ESP32 module specifically so I could drive some RGBWW LED strips as well.

See the cad folder for the KiCad files.

The (mostly populated) PCB looks like this: