I'd like to try to use DGPS in order to locate my mobile robot (which can randomly move in a wide area, outdoor) and to let him return to a fixed position when I send him a specified command.
Is this possible with Arduino?
I've read something about the DGPS, but I didn't understand if I have to setup my fixed gps positions or if it is supposed to use the global ones (and in this case, I should only create the return fixed position). Does I have to find a particular GPS sensor or every gps sensor can do this work?
Do I have to directly implement a software to calculate the distance between the fixed positions and my robot, or is there any arduino library?
Thanks for all your suggestions! :)