This tutorial shows you how to connect Raspberry Pi and Arduino using I2C communication, how to configure it. Combining them does not require your USB port.
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Raspberry Pi to Arduino shields connection bridge
DiddyBorg - The most powerful Raspberry Pi robot available | PiBorg
In this article you can find instruction on how to make a simple ethernet cable tester driven by an Arduino. I was inspired by this page that simply and clearly describes how to make a tester for e...
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