Here are the resources for the Makeblock XY Plotter Kit: http://makeblock.cc/xy-plotter-e-kit/
The detail stepps on how to build this ploter is here: http://www.instructables.com/id/How-to-make-a-XY-plotter-with-Makeblock/
We provide demo programs for controling the plotter by Android smart phone. An arduino code running on the arduino boards and App Running on the smart phone are needed.
plotter.ino is the code for Arduino, you may need to add the latest Me_lib_V2.0 to your Local Arduino library path.
You may need to install the XY_Plotter.apk on your smart phone. then, the plotter can draw the pictures send by your smart phone.
The description of the app is here: http://forum.makeblock.cc/t/xy-plotter-application-for-andoid/228