New to the forum but have been following arduino for a few years while i was researching an aquarium controller project. Now i Finally found a project I would like to attempt using arduino. In my head it seems pretty straight forward, arduino board, Sainsmart 8x 12v Relay board, display board.
This will sit in my Jeep and be used to switch on and off the various led lights. (Rock lights, fog lights, back up lights)
I will need a small display to show the various buttons or names of lights which will trigger them on.
With all the board options I am not sure if a mega 2560 is enough or overkill, I would like room for expansion.
My guess is at least a 4.5" inch screen but would consider as large as 9" and mount it in the dash replacing the head unit.
Thanks for your time.