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Have you ever wanted more I/O pins on your Arduino? Well if you have, check out this write up about using an i2c I/O Expander with an Arduino.

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Make: Arduino

Marc de Vinck

I’m currently working full time as the Dexter F. Baker Professor of Practice in Creativity in the Masters of Engineering in Technical Entrepreneurship Program at Lehigh University. I’m also an avid product designer, kit maker, author, father, tinkerer, and member of the MAKE Technical Advisory board.


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