Position hold based on my own flight control and navigation board.
2x STM32F4 MCU (1 for the flight control, 1 for the navigation)
Sensors:
Bosch BMA280
InvenSense ITG-3200
u-blox LEA 6T
RTOS: ChibiOS 2.6.4
15 state Kalman navigation filter
SimonK ESCs
10x4.5 propeller
Custom hexacopter frame
