Adafruit present HAT-A-DAY
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Adafruit present HAT-A-DAY
HAT (Hardware Attached on Top) is a new module for the Raspberry Pi B + who add functionality to it and is mounted on top like a Arduino Shield.
Adafruit was developed during the last week a prototype every day and the result will be able to check on your web.
I leave you some links if you want more information about HATs:
Link: raspberrypi.org > Introducing Pi HATs
Link: design guide