This product is retired, please consider the new version Grove - Mini Fan V1.1.
Grove - Mini Fan is a DC motor driver base on AVR microcontroller Atmega168,you can change code by breakout , this module also reserve servo connector,it can driver servo by change code ,Grove - Mini Fan is design for kids, which is use soft fan-leafed in order to avoid unnecessary damage.
Grove - Mini Fan
Grove - Mini Fan v1.0 (Eagle Files)
Grove - Mini Fan v1.0 (pdf)
Codecraft CDC File