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Xtrykr
11-17-2009, 11:31 AM
Hi guys, been a while since I posted (have been busy with work). Anyhow, I am wondering if there is such thing as a LED that I can hook up to the power supply or something that changes its light intensity based on the power draw from the PSU. So say when the computer is idle, the LED is barely lit, and then if the PSU hits a certain power output, then the LED glows more intensely. If this can be done, can anyone guide me on how to accomplish this? What sort of LED would I need to get and how would I do the wiring? Thanks!
Kayin
11-17-2009, 04:53 PM
That's more of an Arduino task. There may be a PIC that'll do it, but that will take more than a simple LED.
Xtrykr
11-25-2009, 11:43 AM
Anyone?
x88x
11-25-2009, 02:22 PM
So you're wanting it to vary intensity with the overall power draw of the entire system? Kayin's right; that'll take more than just an LED. First you would need a way of measuring the power draw, then a way of translating that to a change in power to the LED. If instead you wanted to have it vary according the the CPU usage, or some similar thing that's system-readable, you could feasibly use a USB LED controller (someone was using one of these in their mod a while back; I forget who) coupled with custom software to do it.
SgtM
11-27-2009, 07:08 AM
Check out rendermandan's XPS Ground Effects (http://www.thebestcasescenario.com/forum/showthread.php?t=15325). He might be able to help you with this.
Xtrykr
11-30-2009, 12:49 PM
So you're wanting it to vary intensity with the overall power draw of the entire system? Kayin's right; that'll take more than just an LED. First you would need a way of measuring the power draw, then a way of translating that to a change in power to the LED. If instead you wanted to have it vary according the the CPU usage, or some similar thing that's system-readable, you could feasibly use a USB LED controller (someone was using one of these in their mod a while back; I forget who) coupled with custom software to do it.

Oh, actually, that would do as well with CPU usage. USB LED controller u say eh? I'll have to google that! Thanks guys!