1 Feb 2012

Liam made this cool DIY variable speed stir plate for creating yeast starter for his homebrewed beer. To control the speed of the magnetic stirrer, he used an ATmega328 with the Arduino bootloader connected to a PC case fan. Liam even made use of the LEDs that you can sometimes find on fancy fans to give his stir plate nice lighting effects. If you’d like to get started on your own, check out his site for an easy to follow wiring diagram and the code.

How-To: PC Fan Stir Plate

(Via MAKE Magazine.)