I have loaded the marlin firmware to my ramps but when I give power to the boards my LCD beeper emits a high pitch sound very uncomfortable, but as well the screen flickers and won’t let me make any menu selections any trouble shooting ideas???
Is it the Velleman k8203 LCD?
Maybe you plugged the header in wrong way.
Also check if you have flashed the controller with the firmware taht supports the LCD (V2.0 and up)
[quote=“ichbinsnur”]Is it the Velleman k8203 LCD?
Maybe you plugged the header in wrong way.
Also check if you have flashed the controller with the firmware taht supports the LCD (V2.0 and up)[/quote] No it’s the reprapdiscount full graphic LCD with a ramps 1.4 control board.