RAMPS 1.4 Full Graphic Smart Controller 128x64 LCD Module

The 128x64-Reprap-LCD full graphic smart controller is a compact display and control module designed for RAMPS 1.4 and compatible RepRap 3D printer boards. It combines a 128×64 dot-matrix graphic LCD with an ST7920 controller, a rotary encoder with push-button, and an SD card slot, allowing the printer to operate without a connected computer. The module runs on a 5V DC supply and displays blue-background characters in white, with a screen area of 44mm × 62mm. The rotary encoder lets users scroll through menus, select files, and adjust printing parameters such as speed, extrusion rate, and temperature during a print. G-code files stored on an SD card can be selected and printed directly from the controller, removing the need for a PC during operation. The board connects easily to RAMPS 1.4 via the included ribbon cables and adapter, and the ST7920 controller is widely supported by Marlin firmware when the RepRap Discount full graphic smart controller option is enabled. The module measures 12.5mm × 70mm × 78mm and operates between -20°C and +70°C. It is suitable for both 3D printers and CNC machines that require a standalone graphic control interface.