Control 3d printer with ps3 controller

Hello,
So I just got a 3d printer as a project that I can add things to rather than actually print things (well nice to be able to eventually). So after adding all the standard things, lcd, auto levelling and a raspberry pi for octopi server, I thought it would be a good idea to try to find a way to hook up a ps3 controller to the printer to control it. I found this great video on you tube showing a Arduino uno (but could be applied to mega) with a bluetooth dongle printing out the buttons pressed on the ps3 to the serial monitor. Link: [m.youtube.com]

Therefore would it be possible to set these commands (buttons pressed) to actions for the 3d printer to execute?

If this could be done where would I add the code in marlin?
Are there any pins not used by the ramps shield? Because some would be needed for the bluetooth host shield
Is there a simple way to code commands like: if up pressed move Y 1mm forward?

Or would it be best doing this through the raspberry pi? Try to send the data ( buttons pressed ) to the arduino through I2C. Hope I can do it all in marlin as I don't know much Linux or Python

Thanks for any help, I am new to this and inexperienced!

Edited 1 time(s). Last edit at 08/08/2014 02:04PM by ollie97.