I may have already mentioned it somewhere, but I created a board to control WinDIYngThing. I wanted to briefly present them here. There is space for three stepper motor drivers, an OLED, two buttons, a rotary encoder, voltage converter and an ESP32.

In the pictures you can see the first prototype. On this I soldered the components with pin headers. As soon as I know that everything works, the individual components can be soldered more compactly (closer to the PCB).

The third stepper motor driver is actually not necessary. But I thought it was better to have another one than to need it. :) One purpose I could imagine is to use the stepper motor to unwind and wind up the wire spool. In this way, if the winding itself was incorrectly wound up, the wire could be quickly and easily rewound onto the original spool.

What do you think? Have I forgotten anything important?