Power Management for Sensors and Flight Controller

ArduCopter
1

I am currently using a Blue Cube FC with the ADSB-in carrier board and am wondering what is the best method for powering each sensor.

My sensor suite consists of a radar, lidar , GPS and two Cameras.

I currently have a single 5v BEC that is powering the Cube and all sensors listed above. I have leads going to each item as well as the power cable into the cube spliced onto the output leads of the BEC, but I am thinking of cleaning the system up.

Is it possible or safe to power each of the items directly from the I/O ports on the face of the carrier board, or will this cause too much power to be running through the FC. I would like to do this to clean up the wiring and make the whole system less complicated but am unsure if i can do this and still maintain the reliability of the system.
Have you seen people power sensors directly from the cube ports, or is it proper to power them from the BEC and not run the power through the cube?

2

Serial 1/Telem 1 has a 1.5A current limit.

All other ports share a 1A current limit.

I don’t know how much your sensors draw, but to make a guess I would say that you’re going to be drawing too much power through the flight controller, especially since you’ve also likely got radios/telemetry running as well. You should probably look at setting up a separate power distribution system for the sensors and radios to be safe.