Using a pixhawk as an external imu for the MRL robots.

Install dependencies with the following commands (replace melodic with your ros version)

sudo apt install ros-melodic-mavros ros-melodic-mavros-msgs ros-melodic-mavros-extras
pip install mavproxy

To launch

 roslaunch pixhawk_external_imu apm2.launch

This will also create a proxy for conencting with QGroundControl or MAVProxy (on udp port 14560). An example connecting with MAVProxy

 mavproxy.py --master="udpout:127.0.0.1:14560" 

Using MAVProxy we can calibrate the different sensors through a command line interface