[ts-7000] USB crashes board when running on batteries??? and servos?

["bozemanmt25" <>]

I'm trying to run the board off a battery pack. I have a 5v 
regulator and the board works just fine until I try to run the USB 
wireless card, and then the board crashes. 
Has anybody successfully ran the board off the CF, and the wireless 
USB with a battery pack?
I'm trying to make a robot that needs to be mobile, but also needs 
to communicate with my laptop. 

Is there a low consumption USB wireless card? I don't need a lot of 
distance, 40 feet is plenty. 

On another point has anybody controlled a servo from the board? 

Thanks 





 
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