I was fiddling around with the extruder and I noticed that when I spun the extruder stepper the lcd backlight flashed on. Then I went on the move the y axis and again the backlight flashed, finally I tried the x and it did not flash. Is it bad that current from the steppers is somehow flowing back into the lcd backlight power supply? The steppers are wired through the drivers normally ( pins next to the drivers). I'm using an lcd kit that has a mini little "shield" ie it's own small pcb that plugs into the RAMPS https://reprap.org/forum/read.php?151,404982,404982#msg-404982 Sat, 10 Oct 2026 17:01:03 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?151,404982,405041#msg-405041 https://reprap.org/forum/read.php?151,404982,405041#msg-405041
It shouldn't cause a problem provided that the brown out fuses of the atmega are configured correctly.]]> nophead General Mendel Topics Tue, 09 Sep 2014 05:26:27 -0400 https://reprap.org/forum/read.php?151,404982,404982#msg-404982 https://reprap.org/forum/read.php?151,404982,404982#msg-404982 erikn General Mendel Topics Tue, 09 Sep 2014 01:38:04 -0400