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.
Features:
1 large-screen LCD 2004.
2.Back integrated SD card, SD card file into slices on the LCD to select the corresponding document can be printed.
3. Product comes encoder parameter adjustment that can be achieved, and the file select will be print.