Hey guys so I am working on a project for my show car.I got an android device fiberglassed into my front dash. Now I would like to have some sort of app/website I can design and when I click on, an led light will turn on or any 12v circuit.
I was originally gonna go with bluetooth and use an android app but then someone told me it would be better to use wifi, and have the car as a hotspot type deal.
so what would be the best arduino to go with and relay board I would need? if i use wifi id just have to design a website using html for the phone?