Polargraph XBee for wireless comms

This was actually dead easy. I'm using a XBee Explorer (no USB).

Connect arduino pin 1 -> DIN on xbee, arduino pin 2 -> DOUT on xbee, 5v and GND. That's it!

 

Though this one is based on a arduino mega, it'll work on any board, and doesn't need any extra code.

Done