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Powered USB 1.0 Hub? Is that enough?
Mysterioii:
Yeah what Drventure said... I would definitely patch into the pc's power supply for the LEDwiz. My system works fine as-is BUT I don't have an LEDWiz hooked up yet. I'm looking at building a new CP which will have the ledwiz, and when I do I'll definitely be hooking it up to external power.
It's really not that hard man.
mcseforsale:
Excellent info on USB. I won't have the LEDWiz until Santa comes probably...if I'm even interested in this at that point (I'm always working on projects...BMX restorations, car repairs, I might build the mother of all forts for the kids, etc.). But I think I can power the 16 RGB drives using only blue off my existing kit, until I update the PC and go for the LEDWiz.
Mysterioii, if I was a gambling man, I'd invest in some training in .NET (preferrably C# or other) programming, Microsoft SharePoint administration....segwaying into programming. Those are the key areas they're hiring for down here in the ATL. .NET folks usually go anywhere from $45 - $75/hour depending on experience.
Sharepoint architects/programmers (it's a glorified web interface) write their own checks down here. A lot of companies are seeing that Sharepoint can replace things like SAP and other expensive platforms if programmed properly.
AJ
--- Quote from: drventure on April 12, 2012, 02:46:45 pm ---About USB and power, the main things you have to remember is that each usb port is "speced" for +at most+ 500ma of current. Actually, it may be only 450ma. Not exactly sure.
Your optipac, keywiz, as well as trackballs, and USB sticks like the U360 won't come anywhere near that.
BUT...
LEDWizes are another story.
The board itself only draws 50-100ma, but then you have to count each LED you attach, and they're typically 20-50ma EACH, and each RGB counts as 3 leds!
Also, say you pick up a nice 7 port hub. If you look closely at the wall wart that comes with it, you may find it grossly underpowered.
For instance, I picked up a cheapo 7 port hub once, the PS was marked as 1amp.
That means that if I wanted to fully power any devices plugged in, I could really only plug in +1 device+!
So, to fully power all available plugs on a 4 port hub, you'd need at least a 2 to 2.2amp PS for it.
Now, getting back to reality, you almost never will have a situation where you actually need to provide full available power to all the devices plugged into a hub.
If you want to connect an LEDWIZ and drive more than just a few LEDs (and who doesn't) :) you'll likely want to provide a seperate power supply for it. The LEDWiz docs show you how.
As far as the speed, I'm not completely sure on that. USB3 I +know+ is totally unnecessary for input devices. usb2 is what I pretty much always use.
USB 1 would +probably+ work, but you might get some input lag. Someone else on here might know more concretely about that.
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AndyWarne:
The I-PAC and Opti-PAC are full speed USB devices and wont work at all on a USB 1.0 hub.
Mysterioii:
--- Quote from: AndyWarne on April 13, 2012, 03:10:55 am ---The I-PAC and Opti-PAC are full speed USB devices and wont work at all on a USB 1.0 hub.
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Hmm then maybe my PC does have USB 2 even though it's like 8 years old, because I've never had any issues at all with my ipac. I honestly don't know when it was introduced.
drventure:
--- Quote from: AndyWarne on April 13, 2012, 03:10:55 am ---The I-PAC and Opti-PAC are full speed USB devices and wont work at all on a USB 1.0 hub.
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I did not know that.
Thanks for the clarification!