It is a computer mouse free of batteries and free of cables. No need of USB connection and no special mousepad as well!. - by Clovis Fritzen.
This design features a movement-based charging system, that supplies energy to a supercapacitor; it means that you need no USB port nor mousepad for charging. You will never worry about anything other that using it.
Another cool feature I'm implementing is an accelerometer, so this mouse doesn't use neither a trackball nor Infrared encoder!.
A prototype is under way, with pictures and schematics to come!.
visit the full project at; https://hackaday.io/project/5165-wireless-batteryless-mouse