SunFounder Smart LCD 2004 Controller with Adapter For Reprap Ramps V1.4 3D Printer

Link to download the source code:
For RAMPS 1.4
https://app.box.com/s/zscgjden0uhocnkfp1qz
For RAMPS 1.5.7
https://app.box.com/s/w4ar7akhfafow4l4yk9h

This Smart Controller XXL contains a SD-Card reader, an rotary encoder and a *very large* 20 Character x 4 Line LCD display.

After connecting this panel to your Ramps you don't need your pc any more, the Smart Controller supplies power for your SD card. Further more all actions like calibration, axes movements can be done by just using the rotary encoder on the Smart Controller. Print your 3D designs without PC, just with a g-code design stored on the SD card.