Quote Originally Posted by Darrel Taylor View Post
The idea is to read the Current being sent to the reverse lights from the cab. It's actually an analog output from the current sensor, but with the sensitivity cranked up ... the output will be "High" (output saturated) with any current being drawn, and "Low" when there's no current.
DT good explanation just like a squarewave
Then in the trailer, it turns the lights on/off via serial data to the solid state relay.
How are you going to feed this output back to the tralier as if i followed this tread correctly i think it was mentioned that the only connection between the trailer and the cab is going to be the 24V line ?