As the title says I have a 12V LED lighting strip connected to the 12V aux header (located next to diode D2). When I start the extruder heater, at some point the PID controller kicks in (you know that happens when LED3 (or LED4) on the ramps board starts to flash rapidly).
The odd thing is when this happens the LED strip also starts to flicker in unison.
So somehow the PID signal (which goes to to the D10 output) is injected into the 12V line. I can see a couple of filter caps on the 12V line in the schematic for a total of about 100uF. I guess there may be insufficient filtering.
Any help would be greatly appreciated - thanks!
The odd thing is when this happens the LED strip also starts to flicker in unison.
So somehow the PID signal (which goes to to the D10 output) is injected into the 12V line. I can see a couple of filter caps on the 12V line in the schematic for a total of about 100uF. I guess there may be insufficient filtering.
Any help would be greatly appreciated - thanks!