The trackball is powered by the Raspberry Pi Pico running QMK, features a high-accuracy PMW3360 sensor that can be found in commercial gaming mice, and uses a snooker ball for the business end.

Logitech MX Ergo S is sold at a price of 4769 hryvnias. In my opinion, this is an adequate price for a model of this kind and ...

Ploopy is an open source trackball you can build yourself and ... An ATMega32U works as the processor and an optical sensor watches the ball for motion. Speaking of the ball, apparently, it ...