- Advanced 32 bit CortexM4 ARM high performance processor, can run RTOS NuttX real time operating system;  - Integrated backup power supply and failure backup controller, the main controller can be safely switched to backup control;  - Provide redundant power input and fault transfer function;  - 14* PWM/ actuator output;  - Bus interface (UART, I2C, SPI, CAN);  - Provide automatic and manual mode;  - Color LED lamp;  - Multi tone buzzer interface;  - Micro SD to record flight data;    Specification:  The board integrates with PX4FMU+PX4IO  Pixhawk is with new 32 bit chip and sensor technology  Processor:  32 bit 2M flash memory STM32F427 Cortex M4, with hardware floating point processing unit  Main frequency: 256K, 168MHZ RAM  32 bit STM32F103 backup co processor  Sensor:  L3GD20 3 axis digital 16 bit gyroscope  LSM303D 3 axis 14 bit accelerometer /magnetometer  MPU6000 6 axis accelerometer / magnetometer  MS5611 high precision barometer  Interface:  5* UART, 1*compatible high voltage, 2*hardware flow control  2*CAN  Spektrum DSM/DSM2/DSM-X satellite receiver compatible input  Futaba SBUS compatible input and output  PPM signal input  RSSI (PWM or voltage) input  I2C  SPI  3.3 and 6.6VADC input  External USB MICRO interface  Color:Black  Size: 50x81x16mm/2.0x3.2x0.6 in  Package size: 110x145x18mm/4.3x5.7x0.7 in  Weight: 48g  Package weight: 52g    Package included:  1 x 2.4.8 Pixhawk main control  1 x Safety switch  1 x Flight control shell  1 x Buzzer  1 x 6pin to 6pin line  1 x 4Pin to 4Pin line  1 x 3pin DuPont line