I have a project which is a ROV, I'm thinking in add two or three methods to remotely control my car.
One, through the computer.
Two, using a Remote Control.
Three, through the cellphone.
What is the best way to do this mostly the cheapest way of doing this?
Throught the cellphone I didn't search it yet its like a third plan, to the Remote Control I have a receiver and the control from an old car (Skyinn G82109) not sure if it's a good Idea to use it so suggestions are accepted, finally the computer I saw the xbee but buying two of them and two shields and two Arduino Unos is very expensive...
You can use a cheap Bluetooth adapter for the Arduino, and then control the ROV through your phone's bluetooth.
If you already has a RC controller and receiver, that may also work, although I belive the programming for the in the Arduino side might be a little more complicated.
Joaogl:
Is it possible to send real time image and sound through the bluetooth?
I don't think so. Bluetooth has a very limited throughput (2.1 Mbit/s for Bluetooth 2.0 + EDR). Not only that, but the Arduino would have to process and the A/V data to send it over bluetooth as a stream. I don't thing it is possible to implement a codec + protocol in an Arduino without the help of dedicated chips.
I don't know of any devices that transmits live video through bluetooth.