[Dprglist] Fwd: Need suggestion for expansion boards for STM32 to build a robot

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Hello Doug / Murray,
Are you talking about the board I created for David Anderson?
I would consider that public domain if David does not mind...
I can probably dig up the Eagle files for it if you don't have them.
The board is shared on OshPark.com, but eagle (The tool I used for the board layout) design files might not be present?Let me know... 

One thing is I can't remember if I used other than basic eagle license version. I have some intermediate version that was about $800 back in the old days (circa 2010). I think there was an academic version available at the time for little money. The limitation was auto-router would not route beyond a board size of about 3"x4" or so, but you could manually route traces beyond that limit - which I did a few times way back around 2005.

Getting the boards made though OshPark will be a bit expensive $72 for 3.I have used Chinese company Gojgo.com for larger quantities, but OshPark does have some deals there too...

Might be other approaches building breakout boards that dock to Nucleo pin headers, but do not span entire Nucleo, if that makes sense - to reduce board square inches.  

On Oshpark, search for shared project :  NucleoBot_DPA_2
Ron






 
-----Original Message-----
From: Murray Altheim via DPRGlist <dprglist at lists.dprg.org>
To: dprglist at lists.dprg.org
Sent: Thu, Oct 21, 2021 6:15 pm
Subject: Re: [Dprglist] Fwd: Need suggestion for expansion boards for STM32 to build a robot

On 22/10/21 6:08 am, Doug Paradis via DPRGlist wrote:
[...] An alternative is a board laid out by club member Ron Grant. Ron's board
> requires some more work on your part, but breaks out all the pins. It is 
> much larger than the UNO sensor shield, but has some nice features. It may 
> require having it built at a PCB company.
Hi Doug,

Has Ron released the files for that board somewhere? Because nowadays it's
almost trivial to send a board spec off to a fab shop and have them made
and sent back quickly and cheaply, possibly cheaper than from Adafruit or
another hobbyist vendor (you may be able to buy them for roughly the cost
that Adafruit does as an OEM).

Having the board files available would be a boon to the robotics community,
as even I (!) am now looking at STM32 boards, among them the Nucleo-64s.

Cheers,

Murray

...........................................................................
Murray Altheim <murray18 at altheim dot com>                      = =  ===
http://www.altheim.com/murray/                                     ===  ===
                                                                    = =  ===
    In the evening
    The rice leaves in the garden
    Rustle in the autumn wind
    That blows through my reed hut.
            -- Minamoto no Tsunenobu

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