Pixhawk (FMUv2) - PX4

Key Features
https://docs.px4.io/v1.11/en/flight_controller/mro_pixhawk.html 

• Microprocessor:
  • 32-bit STM32F427 Cortex® M4 core with FPU
  • 168 MHz/256 KB RAM/2 MB Flash
  • 32 bit STM32F100 failsafe co-processor
  • 24 MHz/8 KB RAM/64 KB Flash
• Sensors:
  • ST Micro L3GD20 3-axis 16-bit gyroscope
  • ST Micro LSM303D 3-axis 14-bit accelerometer / magnetometer
  • Invensense® MPU 6000 3-axis accelerometer/gyroscope
  • MEAS MS5611 barometer
• Interfaces:
  • 5x UART (serial ports), one high-power capable, 2x with HW flow control
  • 2x CAN
  • Spektrum DSM / DSM2 / DSM-X® Satellite compatible input up to DX8 (DX9 and above not supported)
  • Futaba® S.BUS compatible input and output
  • PPM sum signal
  • RSSI (PWM or voltage) input
  • I2C
  • SPI
  • 3.3 and 6.6V ADC inputs
  • External microUSB port

• Power System:

  • Ideal diode controller with automatic failover
  • Servo rail high-power (7 V) and high-current ready
  • All peripheral outputs over-current protected, all inputs ESD protected

• Weight and Dimensions:

  • Weight: 38g (1.31oz)
  • Width: 50mm (1.96")
  • Thickness: 15.5mm (.613")
  • Length: 81.5mm (3.21")