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05-28-2004, 11:50 AM
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#16
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Variable Bitrate
Join Date: Aug 2002
Location: Kansas
Posts: 398
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weekendowel- love the program 
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05-28-2004, 12:06 PM
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#17
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Confusion Master
Join Date: Sep 2003
Location: If you go down to the woods today, You're sure of
Posts: 10,263
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Why is everyone messing with the 8 pin on the serial port. all you need to do is have the PC set to hibernate, standby or switch off when the power button is pressed. Then have a lead that goes to the power switch connector on the M/B going to a relay that will monetarily close the switch.
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05-29-2004, 01:49 AM
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#18
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Constant Bitrate
Join Date: Jan 2004
Location: Stockholm, Sweden
Posts: 209
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The problem is with the relay that should send a pulse to the motherboard, if you just turn on your ignition and then turn it off right away, then the PC will startup and stay on, when you start your car the PC will go to hibernate. With the comport idea it can´t go in the wrong phase.
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05-29-2004, 02:19 AM
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#19
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Maximum Bitrate
Join Date: May 2002
Location: Australia
Posts: 449
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Nice simple idea, hope it all works out 
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05-29-2004, 07:57 AM
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#21
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Variable Bitrate
Join Date: Aug 2002
Location: Kansas
Posts: 398
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Does anyone know what kind of relays and capacitor Iwould need for this diagram? (preferably from www.radioshack.com, cause I'm goin there today. )
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05-31-2004, 02:40 PM
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#22
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Newbie
Join Date: May 2004
Posts: 17
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Anyone got more technical, electronic schematics. Where does pin 4 and 8 come from. Cant you just use a smal switch to short the two, instead of the relay.
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05-31-2004, 02:49 PM
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#23
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Constant Bitrate
Join Date: Jan 2004
Location: Stockholm, Sweden
Posts: 209
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Ofcourse you could have a pushbutton to short them, any short will do
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05-31-2004, 02:53 PM
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#24
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Raw Wave
Join Date: Oct 2003
Location: Madrid
Posts: 1,982
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Quote: Originally Posted by elec999
Anyone got more technical, electronic schematics. Where does pin 4 and 8 come from. Cant you just use a smal switch to short the two, instead of the relay.
I think we're trying to get around using a switch here!
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06-01-2004, 08:55 AM
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#25
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Newbie
Join Date: May 2004
Posts: 30
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Well, Ill just sit back and wait for you smart people to figure this out for me, heh...
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06-01-2004, 08:58 AM
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#26
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Variable Bitrate
Join Date: Aug 2002
Location: Kansas
Posts: 398
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me too.........................
I was thinking two 1 amp relays if your going directly to the inverter's switch. I have no idea about the capacitor. I also don't know how to wire the relays.
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11-29-2004, 09:51 PM
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#27
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Low Bitrate
Join Date: Oct 2004
Location: Kansas City, MO, USA
Posts: 76
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Quote: Originally Posted by vcbb5
Does anyone know what kind of relays and capacitor I would need for this diagram? (Preferably from www.radioshack.com, cause I'm goin there today. )
Mee tooo. I am battling a ground loop but want to move forward to get this going. What relays would we be using to accomplish what this scematic displays and how does one build the capacitor? I've looked and there really isn't anything definitive. Sorry I'm such a noob, I just want to get this completed!
__________________
Today I stuffed some dolls full of dead rats I put in the blender. I'm wondering if maybe, there really is something wrong with me.
Last edited by joebagodoe; 11-29-2004 at 10:00 PM.
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04-26-2005, 08:17 PM
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#29
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FLAC
Join Date: Dec 2000
Location: Afton MN
Posts: 1,119
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Just reviving a great thread....
Some of you appear to be stumped about the power off delay in this circuit. I've been working on my own shutdown controller do-hickey and have this clip to share. The entire thing isn't ready yet, but I thought I'd share this portion.
All parts are available at Rat Shack, and it's been tested and works fine. Not tested in a car or on a computer, but a breadboard is close, isn't it?
The caps hold the base of the transistor charged for a while. Transistor powers the relay. Very simple. Adjust the caps for your desired time.
My comp does a full shutdown in around 1 minute, so I shot for 1m 15sec+, hence the caps I chose. I haven't tested it at 14+V in a car, more time, I guess...
The +12 input will charge until unlatched, then the caps determine the time until the relay is shut off.
Optional areas are in pink (led's to make the circuit flashy).
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07-26-2005, 09:45 PM
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#30
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Low Bitrate
Join Date: Apr 2005
Posts: 83
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Ok I have said this a few times but is it possible for people to take pictures of their ghetto shutdown controller? Or make a list of parts so a newb can have a DIY. I don't know how to read wiring diagrams so real pictures would be very helpful...thanks
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