Connector Offset in Arduino Uno

Hello,

I wish to develop an arduino shield.
When I took the new Arduino UNO reference design, I observed a small change.

While preparing for the basic outlay, I found there was an offset in the top left connector of 5 mils.
[edit]https://sites.google.com/site/avrsite/Home/conn.pdf[/edit]

I wish to know if I go ahead with this then my shield would be also compatible with the older shields.

Kindly let me know,

Warm Regards,
Boseji

Hello,

Here is the picture of the offset that I am talking about.:
https://sites.google.com/site/avrsite/Home/conn.pdf

Kindly help me out with this.

Warm Regards,
Boseji

Based on the .BRD files, the connectors are in exactly the same spot on Duemilanove and Uno (using the "info" command on the connector part origins.) 5 mils is pretty tiny; it would be easy to be to get a Marker in the wrong place with most reasonable grids... I believe the "correct" separation is 160 mils.

The Mega and Uno-Mega connectors are apparently 10mils off (150mil separation), and have been all along. But no one noticed till people started going over the Uno looking for mistakes :slight_smile: (most shields fit "ok") 5mils is about the minimum copper trace width for most PCB shops, BTW...

(and it looks like my Freeduinos are something like 168mil. I could swear I checked it a lot more carefully than that! Sigh.)

Hello,
Thanks for your suggestions. I would now check with even better details.

Warm Regards,
Boseji