Pixhawk PX4 2.4.6 32bit ARM Flight Controller&M8N GPS/TF Card/Mini OSD/PM/Holder - with external LED -Dual Size full angle LED - Advanced 32 bit ARM CortexM4 high performance processer, can operate NuttX RTOX real time operation system - 14 PWM/ Servo Output - Bus interface(UART,I2C,SPI,CAN) - Intergrated back up power and lose efficacy controller, main controller lose efficacy can safely alter to back up control - Providing automatic and manual mode - Providing redundant power supply input and failover - Multicolor LED light - Providing multi sound buzzer interface - Micro SD records flying data Processor: - 32 bit 2M flash memory STM32F427 Cortex M4, with hardware floating point processing unit - Main frequency: 168MHZ256K RAM - 32 bit STM32F103 back up processo Sensor: - L3GD20 3 axis digital 16 bit gyroscope - LSM303D 3 axis 14 acceleration/magnetometer - MPU6000 6 axis acceleration/magnetometer - MS5611 high precision barometer