bpm990d Posted December 21, 2018 Report Share Posted December 21, 2018 Hi, I'm trying to add some 3mm LEDs to a project and I can't seem to get it working. Is it ok to post questions in one of the sub forums so someone could point out what I'm doing wrong? Thanks, Brian Quote Link to comment Share on other sites More sharing options...
admin Posted December 21, 2018 Report Share Posted December 21, 2018 Hi and welcome to elab community Could you post a photo or diagram of what you are trying to do? Quote Link to comment Share on other sites More sharing options...
bpm990d Posted December 22, 2018 Author Report Share Posted December 22, 2018 It's a 3 channel dew controller. http://dslrmodifications.com/DewController/DewController.html The only thing I wanted to do was wire in red LEDs onto each of the circuits so that we knew there was power going to each of the channels. I have some that already have the resistor wired into it. The LEDs work fine on 12V power when I tested them. I also have some 3mm ones. On each of the three circuits I added an LED and it didn't light up when I plugged in a dew control strip and turned it up. The controller actually works, because I could feel the strip get warmer, but the LEDs wouldn't glow. I wired the LED with the anode (+) to the center post and the cathode (-) to the side binding post of the RCA jack. B Quote Link to comment Share on other sites More sharing options...
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