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Old 04-17-2009, 11:01 AM
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Re: touch pro air chamber project (lol)

Quote:
Originally Posted by vpr5703 View Post
I have a quick concern. If you are running the entire rig off of a Mini-B usb port, they only provide 500mA. You might have to pigtail two USB Ports togeather to get 1A of current so you won't either burn out the host USB port or cause the computer to shut the port down completely due to overloading. Esepcially if your Touch Pro has the high-current charge hack running to let it draw 900mA off of the Bus. Either that or get a few Lithium AA cells to add auxillary power to the chamber. Just my $.02
Yeah good thinking. Someone smarter than me will have to figure this one out.

Like, how much power does usb 1.1 put out vs 2.0? How much power does it take to run a fan? Is it as much to charge a battery? There are docks that charge the tp and a spare battery at once off a usb connection aren't there?
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