@serisman

A temperature controlled PWM fan controller using an ultra-inexpensive (3 cent) Padauk microcontroller.

USB keyboard/mouse for PS/2 (or AT, Serial) computers. This is the miniature hardware version compatible with the https://github.com/rasteri/HIDman firmware.

A 4-digit 7-segment digital clock, based on the inexpensive Padauk microcontrollers