Looks like this flight controller uses the same components, and it's just $34
http://www.hobbyking.com/hobbyking/store/__31138__Multiwii_and_Megapirate_AIO_Flight_Controller_w_FTDI_ATmega_2560_.html
Both have:
Atmel's ATMEGA2560
MPU6050 6 axis gyroHMC5883L 3-axis digital magnetometerMS5611-01BA01 Barometric pressure sensor
Can someone explain to me the price difference? Even the software was p…