Splinky RP2040 Controller USB Type C

Pro-Micro/Elite-C replacement with USB-C and RP2040.

Designed for use in custom mechanical (split) keyboards, but many other uses are possible.

Features

• Pro-micro / Sparkfun RP2040 compatible footprint, with 5 extra pins at bottom (Elite-C style)
• Raspberry Pi RP2040 MCU
• 8Mbit flash memory
• User LED & USB VBUS detect
• Low profile USB-C mid-mount connector
• Version: 3.2
• PCB Thickness: 1mm

Programming

The splinky uses a basic two-button reset circuitry.

In order to put the board in bootloader mode, press briefly the RESET button (marked R) while holding the BOOT button (the second one). If the buttons are not reachable (soldered upside down), the /RST pad can be shorted to GND, while the two smaller BOOT pads (next to D8) are maintained shorted.

Dimensions