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Unread 11-12-2014, 04:00
jhersh jhersh is offline
National Instruments
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Re: Using USB Sensors?

Quote:
Originally Posted by marshall View Post
Be careful about powering the Arduino over the USB on the RoboRIO though. I don't think it will let you pull more than 500mA (USB Spec) so no massively long blinky LED chains.
500 mA is the USB 2.0 spec'd max current for Vbus. You should not generally expect more than that from that standard.

That said, the roboRIO is designed to be able to operate with USB 3.0 cameras (at USB 2.0 data rates), but that means roboRIO can source 900 mA per host port so that those cameras function reliably.
 


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