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Author Topic: 2x2 unpopulated pins on ATMEGA16U2  (Read 380 times)
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Hi,

What are those 2x2 header pins that are unpopulated?
It's connected to PB4 to PB7 on the ATMEGA16U2.

Thanks,
RI
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The ATMEGA16U2 is an IC.  It doesn't come with any headers.
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I know that, but PB4-PB7 is connected to a unpopulated header on uno, mega and even due.
What is it meant for?


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Some more information in this post:

http://forum.arduino.cc/index.php/topic,130986.0.html

They say maybe an unimplemented feature.  In any case, it's just a breakout for those four pins.  Feel free to mount pins in it if you want.
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Vexatious Sampler

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