hi,
i need to measure the distance between tow arduino boards in hose ->so gps not relevant.
the two object are not static and will move from place to place so ultrasonic and ir are not relevant as well.
the most reasonable solution i can think of its rf, but can't find any direction on google how to do it.
some one can give me direction or other solution ?
so how Quadcopter like Galaxy Visitor works.
the Quadcopter know where is your position in-door and out-door
and how can i build something like it ... ?