Bluetooth and Phone


I am new to this community and would like to start a project that involves my Android Phone and Bluetooth. What I would like to accomplish is to be able to connect my Android via Bluetooth and do all sorts of things such as turn off lights or make a game controller using my phone. It may sound a bit ambitious but I am motivated to learn.

So which board is a good plate form for me to get started? If you may get me started I will greatly appreciate the help and advice. Thank you all.