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K8-B-Scroller with 12V Pixels

Started by jem5136, November 15, 2023, 11:06:24 AM

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jem5136

I decided to replace my old OctoScroller and Falcon Smart Receiver with a K8-B-Scroller (less cat5 and wires). In my display I have 4 snowflakes (with 12V 2811 pixels) and a Matrix (with 6 P10 panels) in the same location, I've been using the OctoScroller and Smart Receiver which has worked without issue, however, I wanted to cut down the number of Cat5 cables and make a cleaner setup. I have a 5V controller that powers the BBB, controller, and panels but where I'm stuck is how to power the 12V pixels. I've never tried to power a controller at 5V while the pixels are 12V. How his this possible?? I haven't played around much, but I'm wondering if I can simply plug the data lin into the controller and the + and - into the 12V power supply. Would this work or would it cause other issues? 

tbone321

You can power the pixels separately from the controller but you need to tie the grounds together.  IOW, you need to connect the grounds from the 12V and 5V power supplies together.   

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