imsolidstate

Trailer turn signal update

If anyone was interested in my trailer turn signal project, (there was a lot of haters on that one, esp. on Hackaday) Pacman left a comment on that post about an RV turn signal adapter for towing a car at etrailer.com. I bought one of these to try it out. Turns out it does seperate the brake signal from the left and right turn composite signal. So it would work for what I was trying to do. The only thing it doesn’t do that mine did was let the light also act as a clearance light. With my design, the light would be on if the clearance lights were on and flash off to indicate a signal. Not really a big deal though, because you can buy clearance/signal lights to replace the existing clearance lights and use both signals with the same light.

I wasn’t expecting much, but out of curiosity I milled off the top of the plastic box. You can see two relays sticking out of the epoxy potting.

Tags: Electronics, Trailer, Truck