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2x3 header near AREF on Uno board? (I2C?)
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2x3 header near AREF on Uno board? (I2C?)

by ratcliff on Wed Jun 28, 2017 11:58 am

Greetings--

I bought an Arduino Uno as part of the Adafruit "Budget Pack for Arduino" (#193). It seems not to have the six-pin (2x3) male header near the AREF pin, visible in (for example) the images on
https://www.adafruit.com/product/193
and
https://learn.adafruit.com/adafruit-led ... phanumeric ;
what I have is more like the photo on the Uno R3 page
https://www.adafruit.com/product/50 .
Three of the holes are filled with solder; the other three are not.

I don't think this is going to affect in any way my use of the board at this point (as best I can tell such a connection would be partially redundant, with analog pins 4 and 5; see https://www.arduino.cc/en/Reference/Wire) but in case this represents something that you did not intend, I thought I would point it out to you.

Thanks--
SJR

ratcliff
 
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Re: 2x3 header near AREF on Uno board? (I2C?)

by franklin97355 on Wed Jun 28, 2017 1:57 pm

That was added on the Uno recently and is not required for function and is there more for convenient access to those pins

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Re: 2x3 header near AREF on Uno board? (I2C?)

by ratcliff on Wed Jun 28, 2017 2:05 pm

Must be an "old stock" situation then, seeing as I only ordered it about two weeks ago!
Thanks for the quick reply--
SJR

ratcliff
 
Posts: 2
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Please be positive and constructive with your questions and comments.