If you’re using MultiWii at Mongoose-board you might wonder how to connect motors to pins.

Pinouts for tricopter:

Yaw Servo: MultiWii pin=3 = PD3 => Mongoose-pin:3
Front Left: MW=11 = PB3 => Mongoose-pin: spi-header (MOSI)
Front Right: MW=10 = PB2 => Mongoose-pin: 10
Rear: MW=9 = PB1 => Mongoose-pin: 9
RX ppm sum: mw=2 = PD2 (soldered straight to atmega328p)

See: http://www.fuzzydrone.org/2012/01/connecting-motors-and-radio-receiver-to.html