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Old 02-09-2016, 04:29 PM
MattBMusic MattBMusic is offline
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Join Date: Feb 2016
Posts: 1
Default Best Way to Trigger 12vdc LED - Help Wanted

Hey Everyone, I just have a quick question for all of you. Hopefully someone can give a Newbie a hand. I just received the midiwidget and I love this thing. I've been waiting for a long time for a device that does exactly what it does.
I have it triggering LED to midi notes. That's easy, and everything works fine. Now, what I want to do is Trigger a strip of 12v DC LED. John has a post about using Low side switching and the ULN2803A chip to trigger a relay/ solonoid. Would it be possible to use the ULN2803A Chip and Wire the LED Strip in place of the Relay in the Picture? And Power it via a 12vdc Power Supply Hopefully this makes sense. Any help is greatly appreciated!
~Matt B.
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Old 02-22-2016, 12:11 AM
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John John is offline
Join Date: Jan 2009
Posts: 3,007

Hi Matt, welcome to the forum.

It's hard to say without seeing a schematic or specs for the light strip, but it seems like what you want to do is reasonable. Do you have more details?
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Old 02-15-2017, 10:21 PM
Hurricane Hurricane is offline
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Join Date: Aug 2011
Location: Palm Springs Sounthern California
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Default I'm looking for this too .

Any luck ?

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