Connecting a Display to a 3D Printer's Control Board with Marlin Firmware

Опубликовано: 08 Август 2026
на канале: Tech blog
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Hello everyone. I prepared this video from the "How to" series for subscribers based on an analysis of the number of similar questions being asked. As they say, you asked for it, you got it.
We'll address the issue of why you can't connect displays to your 3D printer.
We'll look at how to connect a display to a control board using the popular Full Graphic Smart Controller with an 12864 graphic display instead of the RepRapDiscount Smart Controller with an LCD2004 display. We'll also look at what to change in the Marlin firmware, which directives and functions to enable and disable. And of course, a little explanation of the connection diagram. We'll be connecting to the popular MKS Gen L v1.0 board.
I'll also explain which display to choose and why. Is it possible to connect a display designed for the RAMPS 1.4 shield board, and what needs to be done?
Find out where the display settings are in the Marlin firmware.
How to enable the beeper in Marlin and configure the encoder if it's suddenly working in the wrong direction.

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