RADIOLINK ELETRONIC LIMITED
www.radiolink.com
(OR https://pan.baidu.com/s/1RSghDz8cEltsEhCX9-kcJg)
PIXHAWK firmware link as below:
http://www.radiolink.com.cn/firmware/
Pixhawk/avoid_multiple/Pixhawk.px4
(OR https://pan.baidu.com/s/1PTGG58EPP84gEM21xIHCjQ)
II. How to connect
2.1 With PIXHAWK
2.1.1 Individually with PIXHAWK
Connecting the module (eg. SUI 04) and the I2C port of PIXHAWK with a 4 pin to 4 pin wire
2.1.2 Connecting with PIXHAWK by I2C wiring board
2 wires of 4 pin to 4 pin are needed: one for connecting I2C port of PIXHAWK and I2C wiring board;
one for connecting I2C wiring board and SUI04