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| Bobulus:
--- Quote from: atomikbohm on December 23, 2009, 04:10:04 pm ---Is it possible to wire in some relays or transistors to decrease the number of LED controllers needed? Such as wire each player station with it's own ground and put a switch (relay or transistor) on that ground to control when that player station lights up. i.e. 1 player game would kill the ground to player 2's LEDs. --- End quote --- Well, if you don't mind having a whole set of controls have the same color, it would be easy enough to hook multiple reds (and their corresponding blues and greens) to just a single set of ledwiz terminals. No fancy relays required. The part that tricks people is that you're not hooking the LED to the ledwiz and ground, you're hooking the led to 5V and the ledwiz. --- Quote from: viper221w on December 23, 2009, 06:15:03 pm ---If I run RGB LED's over a LED-Wiz can I get away with using the 5 volt from the USB port if all 32 outputs are used or will I need to run a wire from a 5v molex terminal? --- End quote --- The groovy gamer gear website says that the LEDWIZ can handle up to 500mA without an external 5V power supply (500mA is what the USB spec says is the maximum amount it will output), and I'm sure a little bit is lost just powering the device itself. Each LED uses 20mA each (and the RGB LEDs use 20mA per 'color', so 60mA to light a single button white). So if you do one LED connection per output, that would 32 times 20mA or 640mA....which is more than 500mA. So by my math, you'd need the external power supply. BUT, that's only with all 32 outputs on at once. If you only plan to light, say, half of them at any given time, it would probably work. |
| Endaar:
I'm running three LED-WIZs off of a powered USB hub. As best I can tell, there is no difference between doing it this way and using a separate 5V source. If the power is disconnected from the hub, the LEDs do dim significantly, yet with the hub powered there is no change in brightness regardless of if one or all LEDs are on. Not sure where the ActivX concern came from; it's certainly not an issue with LEDBlinky. And a 600W PSU should be plenty assuming the PC itself doesn't require more. Endaar |
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