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Would it be possible to use a Raspberry Pi to process the joystick commands and send them through the Xbee and output the sensor results on the LCD?
One small thing I see is that you'd probably want a regulated supply to the display rather than the straight voltage from a 3S LiPo.
I'm assuming LCDs don't use 12V, but I could be wrong as I don't speak from experience.
I'm not real familiar with the Arduino shields but thought that they are designed to be stacked. Of course one would not stack another shield on top of the LCD display.Depending on the antenna used on the XBee, look for a XBee shield that has connectors on the top to plug in the LCD shield and does not use any of the pins required for the LCD.
Depending on your flexibility, this might be an option: http://www.trossenrobotics.com/p/arbotix-commander-gamepad-v2.aspxBasically it's an Arduino with a shield... Shield has joysticks + buttons + xbee. And it has nice lasercut plastic + standoffs for grips. It uses a nicely documented communication protocol. I've had no problem using this protocol with Axon and Wixel boards, and it of course works great with the Arbotix board too...
That is a controller for sending information to a robot via xbees. It's got the Arduino built in, which has some default programming, and like any Arduino can be reprogrammed, or taken out and used for a separate project at a later point.
This is what I meant (not stacking Xbees ) I am using the Xbee Pro XSC, which has a wire antenna. I'm not real sure how antennas work, but it would seem logical I could extend the antenna by soldering a longer wire to the existing smaller wire. Which is better solid or stranded wire?
With that board, you might find that the capacitors get in the way of the XBee Pro XSC's extended PCB size (Pros are larger than the regular Xbees). The controller I recommended has that problem too... (just recalled that problem, whoops)I've not used that particular board, but this is kind of the definitive thread on xbee-boards: http://www.societyofrobots.com/robotforum/index.php?topic=9790.0
Do not extend the wire antenna on the XBee. The wire antenna is a 1/4 wave vertical and is tuned to the XBee's frequency. The Audriuo Xbee shield should have the antenna end of the XBee away from the 'stacking' connectors.I did try some searches for XBee shields but couldn't find the ones I believe I saw a few years ago.Just found this image that show how the wire antenna protrudes past the display shield:http://www.arduinodev.com/start-playing-with-xbee/