Press to Open source

#OSFC2025GADGET – Built for OSFC, open to the community.

Press to Open Source, literally

Every conference has swag. But this year, OSFC 2025 has super-swag: a custom-built macropad, designed, assembled, and flashed in-house at 9elements. It’s more than a gadget in your goodie bag – It’s a piece of OSFC you can hack, extend, and take home.

The details (because we know you care):

  • Fully open-source firmware, written in Rust using the Embassy framework
  • 3 mechanical keyswitches + 1 rotary encoder
  • USB-C connection
  • Based on the Raspberry Pi Pico (RP2040) microcontroller board
  • Removable, socketed Raspberry Pi Pico
  • Four programmable WS2812-compatible RGB LEDs
  • One mode selection switch with three positions:Top: Programmer / serial interface onlyMiddle: Full feature setBottom: Macro keypad only
  • Rear 8-pin connector for programming SPI flash chips using the serprog protocol (compatible with Flashrom/Flashprog)
  • Rear 3-pin connector configured as a UART interface in the default firmware

It’s our way of saying thanks!
Take it home. Hack it. Extend it. Share it.

Customize your board