The Ploopy Bean is a 3D-printed, open-source hardware pointing stick mouse that runs QMK open-source firmware on a Raspberry Pi RP2040 microcontroller to control four Omron D2LS-21 buttons and a ...
Joey Baxter, University of Sheffield; Cannelle Tassin de Montaigu, University of Sussex; Josh Firth, University of Leeds; University of Oxford, and Judith Lock, University of Southampton ...