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Hard Drive activity neon

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Old 08-23-02, 02:37 AM Thread Starter   #1
Overload
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Hard Drive activity neon


Hard Drive Activity Neon


I have had this idea of controlling a neon light by the hard drives activity for a while and finally got around to doing it. This was actually very easy to do. The main thing that is needed to do this is either a solid state relay or a suitable transistor or MOSFET. I used a solid state relay with a 3-24 Volt input and 60 volt output. A relay is the simpler but more expensive way to do this where a transistor can be found for less than a dollar but will require proper biasing.

Obviously the way you want to do this is by connecting the relay to the HD LED connector on the motherboard. I disconnected the led and measured the voltage at the connector to be 5 volt. Connect this to the input of the relay and connect the neon in series with a 12 volt rail and the output of the relay and vuala, a hard drive activity neon.

Note: you can not connect both the led and your relay or it wonít work, at least it didnít for me. Apparently the led drains all of the current and doesnít allow the relay to switch.

Warning: If you computer is in your bedroom this could cause Sleeplessness headaches and seizures :-P

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Old 08-23-02, 02:40 AM   #2
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whoa so does ur neon blink around everytime ur hard drive is processing?
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Old 08-23-02, 02:42 AM Thread Starter   #3
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Quote:
Originally posted by NoKtEm
whoa so does ur neon blink around everytime ur hard drive is processing?
yep, just like the led on the front of the case used to

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Old 08-23-02, 02:57 AM   #4
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definately groovy man. seems like it might get a little bothersome, but still neat.
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Old 08-23-02, 03:23 AM Thread Starter   #5
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Quote:
Originally posted by SpaceRangerJoe
definately groovy man. seems like it might get a little bothersome, but still neat.
thanks, I dont have a digital camera or i would post some pics. A picture wouldn't do very well at capturing the effect anyway.

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Old 08-23-02, 10:06 AM   #6
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nice idea... if i thought I could take that on top od the flashing blue leds in my fans... I would give it a try... I think that bay just torn out to be too much flashing though... heh oh well... kewl idea though =)

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Old 08-23-02, 11:46 AM   #7
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Thats cool I remember my friend had an old noisy HD so he put it in the case with the sound sensor on his neon near it and it went with the HD. It was cool but then again it picked up other noised like music. I like you idea, pretty cool.

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