yesterday I ran into some problems connecting my pixhawk cube with an Intel NUC as companion computer. (For reference about the looks of a NUC here is a German vendor site )
The main problem I think is about the USB-connection with the flight-controller. I’m using a USB-TTL adapter and I can establish a connection (in my case I use a ROS-System with Ubuntu). Below is a picture of my problem - the connection is lost and regained multiple times while doing nothing. Sometimes for more the 10 seconds , sometimes the connection was not able to reconnect on its own. If cancel my current mavros-connection task on the companion computer and restart it everything works fine again … at least for a while - there seems to be no pattern when the connection is lost.
So I would like to know about your experience with companion computers and how to connect them with your drones. Anyone who got a stable connection via USB-TTL running? Maybe our adapter is broken or the USB-connector is not tight fitting enough… OR are USB-TTL connection usually not a great idea?
Before I used a Rasberry PI as companion computer on another frame and that worked fine (connection via GPIO pins) but I would like to use the NUC in terms of more computational power (to handle complex sensor data, which will be added in the future).