Full Graphic Smart Controller screen flickering The green lights are on on the Arduino, but the green light on the Ramps is flickering constantly. I have reset and re-uploaded the firmware, but still getting the same results. Does anyone know what would cause the screen to flicker like this? The light on the RAMPS seem to flicker at the same frequency. I was having a few endstop short circuits recently (may be the problem). I have those chinsy 3-wire endstops that short circuit if you plug them in the wrong way. Any help would be greatly appreciated. Thanks! https://reprap.org/forum/read.php?397,734941,734941#msg-734941 Mon, 14 Sep 2026 14:36:12 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?397,734941,735315#msg-735315 Re: Full Graphic Smart Controller screen flickering https://reprap.org/forum/read.php?397,734941,735315#msg-735315 BuildAThing CoreXY Machines Tue, 03 Jan 2017 14:21:18 -0500 https://reprap.org/forum/read.php?397,734941,735191#msg-735191 Re: Full Graphic Smart Controller screen flickering https://reprap.org/forum/read.php?397,734941,735191#msg-735191
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Dust
If you plug in an endstop the wrong way it is very likely you have damaged the voltage regulator on the mega

How would I fix this? I measured the voltage earlier and it was all OK]]> MatthewHall CoreXY Machines Tue, 03 Jan 2017 07:51:27 -0500 https://reprap.org/forum/read.php?397,734941,735053#msg-735053 Re: Full Graphic Smart Controller screen flickering https://reprap.org/forum/read.php?397,734941,735053#msg-735053 Dust CoreXY Machines Mon, 02 Jan 2017 20:21:30 -0500 https://reprap.org/forum/read.php?397,734941,734941#msg-734941 Full Graphic Smart Controller screen flickering https://reprap.org/forum/read.php?397,734941,734941#msg-734941
Any help would be greatly appreciated. Thanks!]]> MatthewHall CoreXY Machines Mon, 02 Jan 2017 12:31:57 -0500