But we here at Hackaday don’t judge based on alternate input lifestyles, and we quite like this billiard ball trackball mouse. A trackball aficionado, [Adam Haile] spotted a billiard ball ...
To send the click events, [Jacek] baked some mouse buttons into the keyboard’s firmware. Among the other Feather sensors is a PDM MEMS microphone, so detecting taps on the ball and translating ...
There, he replaced the wheels on his first mouse design with a rolling ball - the design that became familiar to most end users over the next decades. A similar design had already been tested by ...