Go Down

Topic: uno dimensions (Read 1 time) previous topic - next topic

Justinl

I am in need of official dimension information for the arduino uno board. I am currently developing a pc board which uses the uno board as the central processor and have not been able to become confident of the existing design because when I measure the uno board in my hands, the dimensions are so far off from documents published on the web and the cad file from your website only shows an outline, which is also inaccurate. After searching (oh yea thanks for the Malware and web freezes during my search from 2 of your users) google I came across 2 drawings that appear to match my unit but NONE of them reference the Pin headers to any reference point in particular the mounting holes.

I realize the possibility that I do not have an up to date edition because we purchased it through Radio Shack which probably had it on the shelf for over a year.

Our whole design pivots around this unit and we cannot proceed until we have accurate information. Not to mention the hours I have spent cost more than the unit is worth at this point.
 
Thanks
J

DrAzzy

#1
Apr 08, 2016, 11:32 pm Last Edit: Apr 08, 2016, 11:33 pm by DrAzzy
o_o how do you google "Arduino Uno Diagram" and find two pieces of malware without finding any diagrams? When I searched that just now, the images tab was filled with diagram after diagram, most of which look right and agree with eachother.


The parts that are standard are the holes, and the headers. I'm not confident the rest of the dimensions are constant between different versions - You can't count on anything other than the header positions (and maybe the useless screw holes - why useless? They're too close to parts and header, can't use them!) on the clones.

There are a couple of Eagle libraries floating around with the holes and the pin header (for making shields). I think I used Sparkfun's one for the shield I made.

I would recommend considering a custom board, though - there's nothing magic on the Uno board, all the parts are common, and they made some dubious design decisions. You could probably do better with a custom board that didn't involve an Uno at all.
ATTinyCore for x4/x5/x61/x7/x8/x41/1634/828/x313 megaTinyCore for the megaavr ATtinies - Board Manager:
http://drazzy.com/package_drazzy.com_index.json
ATtiny breakouts, mosfets, awesome prototyping board in my store http://tindie.com/stores/DrAzzy

johnwasser

This one seems to cover everything but the diameter(s) of the mounting holes:
Send Bitcoin tips to: 1G2qoGwMRXx8az71DVP1E81jShxtbSh5Hp
See who has no social life: https://forum.arduino.cc/index.php?action=stats :)

OldSteve

#3
Apr 12, 2016, 02:25 am Last Edit: Apr 12, 2016, 02:25 am by OldSteve
This one seems to cover everything but the diameter(s) of the mounting holes
The mounting hole diameter is written under "PCB outside dimensions". It's 125mil. (1/8", 3.175mm)

So now:- "This one seems to cover everything". :)
Please do not PM me for help. I am not a personal consultant.
And others will benefit as well if you post your question publicly on the forums.

Go Up