I have been asked to build a light control system for a boat trailer only using the hitch and a centre pin for 12volt supply to the trailer. I was thinking of using a pic18 and somehow modulate "FSK or PWM" supply to the trailer where there would be another pic to decode and control relays to switch relays to control the lights. Using a high pass filter at the car end and then another on the boat side.
Any ideas would be appreciated
Thanks
Dalecnc
Any ideas would be appreciated
Thanks
Dalecnc