2004 LCD 3D Printer Smart Controller Instructions


The LCD smart controller hardware installation process is fairly self-explanatory, but feel free to contact us if you have any questions.

Connect AUX, EXP1, EXP2 to RAMPS via adapter and ribbon cable.

To configure, search “//#define REPRAP_DISCOUNT_SMART_CONTROLLER” in configuration.h and uncomment (delete “//”)

If the LCD powers up but does not display any words, the issue is most likely a problem with the connection.​ Unplug the ribbon cables and attempt to plug them in another way.

Press reset on RAMPS board if the characters are not displayed correctly.​

IMPORTANT: adjust the potentiometer to obtain the correct contrast

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