Full Graphic LCD Controller with Smart Adapter
The Smart LCD Controller lets you print without a PC.
Kit Includes 1 Smart Adapter (Fully Assembled)
1 A graphical smart controller with a 128x64 Dots LCD and a SD Card reader
30-35cm long flat cables, with the smart adaptor.
1 set of Headers to connect to your RAMPS 1.4 Board (May require Soldering)
Firmware, hardware and settings required: Firmware: You need Marlin firmware v3 or newer. If you are using older firmware, you must re-flash your board. The latest Marlin firmware is available here: github.com/ErikZalm/Marlin Hardware required: - Ramps 1.4 - Mega2560 board - SD Card Configuration: After re-flash you must edit the config.h according to my post in reprap wiki. reprap.org/wiki/RepRapDiscount_Smart_Controller
Or you can download the preconfigured firmware here: RAMPS Graphical LCD Firmware