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Putting a toggle switch and a momentary switch in a series for power-up?

post #1 of 32
Thread Starter 
I've only got a very basic understanding of circuitry, but I know it'd be possible to put this toggle switch in a series with this momentary switch to power on my computer (Flip the military switch then press the vandal switch to power on, LED in the military switch displaying HDD activity and the LED in the vandal activating on power up). But I don't know how. Any help?
    
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post #2 of 32
connect the toggle to the +part of the mobo's switch connector, connect the ground to the + part of the momentary switch, connect the - part of the momentary switch to the - part of the mobo's switch connector.

It actually doesn't really matter which way you connect the two as long as they are connected in series, because the circuit will not be complete (ie the pc will not power on) until the toggle switch is on and the momentary switch is pressed.

Just make sure one switch leads into the other switch.
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post #3 of 32
Thread Starter 
Mucho gracias for the information, this is basically how I interpreted it:

5fbb270a950f8bf879d0fed7136e6c6a.png

It doesn't look like I'll be able to do anything creative with the LED in the toggle switch since its only got the one terminal marked "ACC", unless I'm completely mistaken and its power is incorporated with the other terminals or something. Would it be at all possible to incorporate another LED with the toggle switch that turns on when the switch is flicked on, even when the computer itself isn't, maybe by using a battery?
    
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post #4 of 32
Or you could buy an arduino board and do all kinds of crazy -yet basic- stuff with switches and LEDs biggrin.gif. I'm doing that, only that I ran into a bump trying to read some info from my mobo's headers haha.
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post #5 of 32
Thread Starter 
Arduino boards look a bit over my head...
    
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post #6 of 32
Quote:
Originally Posted by Supacasey;12009231 
Mucho gracias for the information, this is basically how I interpreted it:

5fbb270a950f8bf879d0fed7136e6c6a.png

It doesn't look like I'll be able to do anything creative with the LED in the toggle switch since its only got the one terminal marked "ACC", unless I'm completely mistaken and its power is incorporated with the other terminals or something. Would it be at all possible to incorporate another LED with the toggle switch that turns on when the switch is flicked on, even when the computer itself isn't, maybe by using a battery?


I couldn't give you an exact answer without looking at the data sheet.

the pictures on frozen cpu are confusing. there are pictures of ones with two connectors and ones with 3 connectors.

If it had 3 connectors it could be a 3 position toggle switch, but im going to go with power is connector or LED and ACC is + and GND is -.

Also im pretty sure the LEDs with the switches won't work because it's looking for a 12v source and im pretty sure the power/hdd led won't put out 12v from the board.

this is my best guess, again im not 100% certain without out looking at the data sheet, but i think this is what you're looking for:
(again the LEDs probably won't work, Or if you get lucky they might and they will just be super dimm.) If you really want it to work well you would take it apart and replace the LED (if that's eve possible).

attachment.php?attachmentid=190429&stc=1&d=1295142614
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post #7 of 32
Thread Starter 
Looks like I should go for this momentary switch then, as it's rated for 3.3 VDC, 5 VDC, and 12 VDC, they sell pre-made wiring for this to hook it up to the LED mobo headers, and there's a review for it where the reviewer says he hooked it up to his HDD activity header and it works great. All good indicators. Although I don't quite understand that terminal schematic...

What about the possibility of making the toggle switch activate another LED, or even the LED in the momentary switch, when it's flipped on and even if the computer's off?
Edited by Supacasey - 1/15/11 at 6:33pm
    
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post #8 of 32
Thread Starter 
If I were to throw an LED into the mix, would this work?

151bb221cd28edff7abb9287297ae4a7.png
    
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post #9 of 32
Quote:
Originally Posted by Supacasey;12046553 
If I were to throw an LED into the mix, would this work?

151bb221cd28edff7abb9287297ae4a7.png

No, the LED will pass the current and bypass the switch. I assume you want the LED to light when the switch is on, and the power button is armed.
The problem you face with anything like that, is that when the positive line on the power button connector is grounded, it's like pressing the button. So you'd struggle to use a relay or transistor to switch the LED. Anyone have any really good ideas there?
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post #10 of 32
Quote:
Originally Posted by Supacasey;12046553 
If I were to throw an LED into the mix, would this work?

151bb221cd28edff7abb9287297ae4a7.png
Where you have the led now it will flash as you press the momentry switch then go off. You should have seperate HDD and Power led terminals on your mobo, two to the led in the momentry switch and two for the other led. As said above the toggle switch looks like its designed to light the led in an on/off circuit, it will light when the momentry switch is pressed only and not stay on.
Edited by Darren9 - 1/17/11 at 4:06pm
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