How should I wire a POTENTIO on KiCad and which should I buy?

Thank you falks, BUT all your recommendations are way way too expensive...

I am looking for a really cheap microcontroller. It should be like ATMEGA or ATTINY.

The reason why I am looking for a cheap no-name controller, is, because I wanna buy arround 300 or 400 peaces... Now understand :smiley: ?