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gioscarabGot free I/O ports?Why not attach one of the available shields (XBee, USB)?Attaching one lets Processing use the currently available serial port, while giving Roborealm a port to work with.
No? Arduino only has one UART port, no matter what the shield is.
With the jumpers in the Xbee position (i.e. on the two pins towards the interior of the board), the DOUT pin of the Xbee module is connected to the RX pin of the microcontroller; and DIN is connected to TX. Note that the RX and TX pins of the microcontroller are still connected to the TX and RX pins (respectively) of the FTDI chip - data sent from the microcontroller will be transmitted to the computer via USB as well as being sent wirelessly by the Xbee module. The microcontroller, however, will only be able to receive data from the Xbee module, not over USB from the computer.
I thought about hardware connection, i think is better to use software connection, like server, or something like this...i try to install opencv library in processing but it don't works, for this reason I choose roborealm....