The Pi connects via USB serial to an ESP32 that is connected to the stepper driver. ... If so, explore [Caio Bassetti]’s tutorial on creating a full 3D hand controller using only a webcam, ...

Stepper controller mounts on the motor rear – smart! Control electronics are based around the STM32 using an ESP32 for Wi-Fi connectivity, but the pace of the video is so fast it’s hard to ...

ESP32 microcontroller: The central processing unit for your desk controller. Nextion TFT touchscreen display: A 3.2-inch model is recommended for optimal usability, though other sizes are compatible.