I need an optical flow sensor for a project of mine which is totally not related to drones. During my search I’ve encountered the whole Pixhawk family and the FX4FLOW sensor. It seems a perfect ready-to-go solution. The problem is I’m completely unfamiliar with the drone development and I’m not sure what do I need to implement PX4FLOW in my project.
What hardware do I need? It seems to me, I can connect PX4FLOW to a computer via USB to calibrate the lenses. Then the sensor is normally connected to a flight controller board, but it seems I can replace it with my programmable logic controller (PLC), and write a code using MAVLink protocol to send commands to PX4FLOW and receive data. Am I correct?
One thing that bugs me is PX4FLOW includes a sonar connector, but I can’t find info if the sonar is required for PX4FLOW to work.