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Translucent Microswitch Buttons*Taking Pre-Orders*

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Scoobie:

Okay, this is going to sound dumb to some of you.  But once the LED is in the button, how exactly do I wire it to power?  I'd like to wire them to my 5v connection on my ipac, but could tap into my PC power supply if needed.

Also, do I need to use a resistor?  If so, then does someone have a picture of how this is done?  I've never connected an LED or resistor.  The pics from Knievel and others show how to get the LED in the button, but not how to connect it to a power source.

Thanks for any help on this!

markrvp:

I just did this last night based on Shawn's suggestions, so I can tell you how I did it.

First - I tapped into the computers power supply for 12 volts.  I ran the hot wire to one terminal block and the ground wire to another terminal block.

2nd - each LED gets two wires soldered to it.  The ground wire is then run to the grounding block.  The hot wire is soldered to the resistor which is then connected to the HOT BLOCK.

There is a lot of soldering to this (the way I did it).  I think Kelsey at OSCAR CONTROLS had the right idea by using the little plastic connectors (like your CD-ROM audio cable) to connect to the leads on the LED and then the wires out of the connector go to your power source.

I'll have pics tomorrow.  I'm just too tired tonight.

JustMichael:

My clear ones have arrived.  Now for some testing...

thetered:

Just searching google will yield more information on led lighting than you could ever possibly need, including all kinds of calculators and even apps that will design arrays for you.  Here is just a quick one I found

http://linear1.org/ckts/led.php

If you parallel your leds it's generally best to put a resistor on each one and not just one on the circuit, this is especially true is trying to run different colors in parallel as electricity will only flow to the one that requires the least voltage... and then fry it! 

I was fumbling in the dark with a nine volt a resistor and a led last night in the dark and accidenty connected the led to the resistor wire touching the terminal and fried it. It was kind of cool cause it was a blue led and first it kind of popped and started giving on yellow light before kind of melting down the terminal some and smelling bad.

Scoobie:


--- Quote from: markrvp on July 01, 2005, 09:40:50 pm ---I just did this last night based on Shawn's suggestions, so I can tell you how I did it.

First - I tapped into the computers power supply for 12 volts.  I ran the hot wire to one terminal block and the ground wire to another terminal block.

2nd - each LED gets two wires soldered to it.  The ground wire is then run to the grounding block.  The hot wire is soldered to the resistor which is then connected to the HOT BLOCK.

There is a lot of soldering to this (the way I did it).  I think Kelsey at OSCAR CONTROLS had the right idea by using the little plastic connectors (like your CD-ROM audio cable) to connect to the leads on the LED and then the wires out of the connector go to your power source.

I'll have pics tomorrow.  I'm just too tired tonight.

--- End quote ---

Pics would be great, thanks!

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