Companion computer:Rasp Pi 2, Rasp Pi 3 B, Rasp Pi 3 B+
Flight controller: Pixhawk
Micro SD card: Minium 8 GB, and Class 10
Camera: Pi Cam V1, Pi Cam V2, Logitech camera ( C270, C310, C510, C720, C920 etc...) and others CSI, USB camera.
D-Com or Wifi usb devices: E3372 (Tested) or others (autoconnect are recommended)
UBEC: HobbyKing™ HKU5 5V/5A UBEC or more, you must minium 5V-3A
Direct Cable or USB USART for connecting ( companion computer - flight controller )
Connect Rasp Pi to Pixhawk via Direct Cable or USB USART
Choose USB camera or CSI camera
The baudrate on companion computer must same the baudrate (telemery2) on Pixhawk
With PX4: SER_TEL2_BAUD (Default 921600), you should change 57600 for stable and save data
With ArduPilot: SERIAL2_BAUD (Default 57, it means 57600), SERIAL2_PROTOCOL: 2 (MAVLink 2)
Method Direct Cable: Connect the Pixhawk’s TELEM2 port to the RPi’s Ground, TX and RX pins as shown in the image
Do not connect VCC-Pixhawk to 5V-RaspPi
Method USB USART( CP2102, PL2303 or others ): Connect the Pixhawk’s TELEM2 port to the USB USART’s Ground, TX and RX pins as shown in the image
Do not connect VCC-Pixhawk to 5V-USB USART