command Arduino with an android cellphone

(first,I want to say that im not english, so sorry for what follows)

Hi, I have a project to command spotlight, cameras, movement sensors and others Arduino things in my second house from my first one with my android cellphone. And I expect that an expert have an answer about the best way to do something like that. :slight_smile:

Sounds like an Android problem.

Have you looked here yet (Follow this link)? Seems like with this much information you could get a lot closer to an answer than just guessing that an expert knows. You might even learn something. There are lots of different ways to do what you want. Try to pick the best one for your application and write out some code. Come back here and show us the code if you have a problem and we’ll help you find it. But it is up to you to get things started.