The Graphic LCD Controller is a graphical user interface to control your 3D printer without the need for a direct computer connection. This controller has an integrated SD card reader, a rotary encoder with push button and a 128x64 graphic LCD display, allowing all types of actions from calibration to axis movements and direct G-code execution from the SD card slot.
The Graphic LCD Controller is designed to plug directly into the RAMPS or Ultimaker type of breakout shields via the included adapter for direct 3D printer control. It will also happily plug straight into our RUMBA+ control boards!
These displays are easy to get running with most common printer firmware. In Marlin, you want to enable: