We plan to buy a large number of ranger robots (>20) for a class we’re teaching. I’ve noticed that connecting using a computer’s built-in Bluetooth can a bit tricky, to say the least. Therefore, we were planning on buying Makeblock Bluetooth dongles.
Testing one of them, I found it very easy to connect. However, I wonder how these would work when we have 20 of them around. How can I make sure I connect a given computer to a given robot? Would the dongle connect to the robot that’s most close by (i.e., has the strongest signal?).