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Possible Duplicate:
How to attach an Arduino?

I have ready through this website:

http://mitchtech.net/raspberry-pi-arduino-spi/

which indicates you can get a pi to communicate with an arduino using SPI, but is it possible to do the same with USB?

Is there a tutorial that explains how this can be achieved?

And if it is possible, does this mean the arduino would be powered by the raspberry pi?

marked as duplicate by Jivings Oct 23 '12 at 4:40

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I can't think of any reason you couldn't. All you would need to do is learn how to communication over serial connections in linux. If you're drawing a lot of power you should use powered usb hub.

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