PCB

The PCB is the heart of the pad. It carries the RP2040 microcontroller, contact pads, and buttons. There are two versions to choose from.

Which version should I choose?

Version	RP2040	Best for
Simple	A separate Waveshare RP2040-Zero board solders onto pads on the PCB.	Beginners, or anyone who'd rather solder one pre-made module than place lots of small parts. Cheaper to start, easier to assemble by hand.
Integrated	The RP2040 chip is mounted directly on the board, no second board needed.	A cleaner, single-board build. Requires placing many very small parts, so it's better suited to a PCB-assembly service or experienced solderers.

Pick whichever matches your skill level and budget, both produce the same finished Stepminia pad.

For each version you have two options:

Order it as-is, download the ready-made JLCPCB production .zip and upload it straight to JLCPCB (or a similar fab house). This is the fast path.
Open or edit the design, grab the KiCad source if you want to inspect, modify, or regenerate the board yourself.

Note

Using the ready-made production files is recommended.