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Electronics Noob Answered

Hi, I was thinking of making something that will light up one set of LEDs when you push the button, turn off, and then light up a different set when the button is pushed again, and they alternate each time. Do they make a switch for that sort of thing?

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11010010110

9 years ago

you need a t flip flop and 2 and gates. those components come in chips if you plan to switch more than few leds you need a transistor for each set of leds as well i can give you exact circuit or you can research a bit online about the components and make it yourself. its not complex

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kelseymh11010010110

Reply 9 years ago

You're really good with digital/solid-state circuit design. I tend to be a little better wrapping my head around analogue stuff. Is there a reason why a pair of relays connected NO-NC wouldn't work for this application? Note that I'm not disputing your solution (it's a good one), I just want to check that I'm not making some stupid conceptual error.

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Laserman595kelseymh

Reply 8 years ago

It would work if you used relays but flip-flops data or toggle are in my opinion easier to use than the classic relay.  However with relays you could probably get more voltage out of the deal.

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11010010110kelseymh

Reply 9 years ago

idk how to make this circuit with 2 relays here is my design with 4 dpdt relays red components are to prevent a momentary power loss when the relays 3 and 4 are switching blue components are to determine the initial state when powered up so that relays 3 and 4 wont fight each other

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NachoMahmakelseymh

Reply 9 years ago

. It would work. It can actually be accomplished with just a single double-throw relay. For LEDs an SPDT would work (common "ground"). . But relays are sooooooo passé. ;)

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octochan

9 years ago

thanks! I didn't think it would be complex; I'm trying to keep it as simple as I can. I've looked at a few online beginner's guides to electronics, but they weren't terribly helpful. I kind of know already what kinds of components you can get, but they had very little information about how they're supposed to work together. Mostly they directed you to buy a kit and learn from there.

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kelseymh

9 years ago

Yes. It's called a relay. You can use two of them. You could also build more complicated circuits with solid state components. Go to Amazon, find yourself a beginner's guide to circuits, buy it, and read it.