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Ron,<br>
<br>
That's fine with me. I'd probably chip in.<br>
<br>
Also the next-to-last version had a mistake, a pin shorted to
ground. Not sure which one is the OshPark file?<br>
<br>
David<br>
<br>
<br>
On 10/21/21 8:43 PM, Ron Grant via DPRGlist wrote:<br>
<span style="white-space: pre-wrap; display: block; width: 98vw;">>
> */[EXTERNAL SENDER]/*
>
> 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
> <a class="moz-txt-link-rfc2396E" href="mailto:dprglist@lists.dprg.org"><dprglist@lists.dprg.org></a> To: <a class="moz-txt-link-abbreviated" href="mailto:dprglist@lists.dprg.org">dprglist@lists.dprg.org</a> 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
>
> ...........................................................................
>
>
</span>Murray Altheim <murray18 at altheim dot
com> = = ===<br>
<span style="white-space: pre-wrap; display: block; width: 98vw;">> <a class="moz-txt-link-freetext" href="http://www.altheim.com/murray/">http://www.altheim.com/murray/</a>
> <a class="moz-txt-link-rfc2396E" href="http://secure-web.cisco.com/1uMwoWuJh8sM3pW1MNURF7he2-zKJSnyI8Uf_p02RD3D7vc8kPoxErh1bYLtOttiD-z41gCtWkM-2Epn4xxIgoOreeCNHAoP0aOJSiKMc41vKAdb5EsDhw74fr_DISXQ9nEYPBTbL1L_w-C-QJtPUHCW7H5qjF6LnpGbdkG93Qmn6ACn01ZkBgiqvqGRZKhrpWp8EJBkzGhhaPs2tBCBZuGdQOxO4K31f5mwvJS3gFa3yIrqvfoZGKVT50GegnYvWKBFx0rZ6Q5oL6c817VT8l_goQIaOcZ7Mah0rtC8uSi8/http%3A%2F%2Fwww.altheim.com%2Fmurray%2F"><http://secure-web.cisco.com/1uMwoWuJh8sM3pW1MNURF7he2-zKJSnyI8Uf_p02RD3D7vc8kPoxErh1bYLtOttiD-z41gCtWkM-2Epn4xxIgoOreeCNHAoP0aOJSiKMc41vKAdb5EsDhw74fr_DISXQ9nEYPBTbL1L_w-C-QJtPUHCW7H5qjF6LnpGbdkG93Qmn6ACn01ZkBgiqvqGRZKhrpWp8EJBkzGhhaPs2tBCBZuGdQOxO4K31f5mwvJS3gFa3yIrqvfoZGKVT50GegnYvWKBFx0rZ6Q5oL6c817VT8l_goQIaOcZ7Mah0rtC8uSi8/http%3A%2F%2Fwww.altheim.com%2Fmurray%2F></a>
> === === = = === 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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