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<div><font size="2">Hello Doug / Murray,</font></div>
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<div><font size="2">Are you talking about the board I created for David Anderson?<br>
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<div><font size="2">I would consider that public domain if David does not mind...</font></div>
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<div><font size="2">I can probably dig up the Eagle files for it if you don't have them.</font></div>
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<div><font size="2">The board is shared on OshPark.com, but eagle (The tool I used for the board layout)</font></div>
<div><font size="2"> design files might not be present?</font></div>
<div><font size="2">Let me know... <br>
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<div><font size="2">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.<br>
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<div><font size="2">Getting the boards made though OshPark will be a bit expensive $72 for 3.</font></div>
<div><font size="2">I have used Chinese company Gojgo.com for larger quantities, but OshPark does have some deals there too...<br>
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<div><font size="2">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. <br>
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<div><font size="2">On Oshpark, search for shared project : </font>NucleoBot_DPA_2</div>
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<div><font size="2">Ron</font><br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black"><font size="2">-----Original Message-----<br>
From: Murray Altheim via DPRGlist <dprglist@lists.dprg.org><br>
To: dprglist@lists.dprg.org<br>
Sent: Thu, Oct 21, 2021 6:15 pm<br>
Subject: Re: [Dprglist] Fwd: Need suggestion for expansion boards for STM32 to build a robot<br>
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<div dir="ltr">On 22/10/21 6:08 am, Doug Paradis via DPRGlist wrote:<br>
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<div dir="ltr">[...] An alternative is a board laid out by club member Ron Grant. Ron's board<br>
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<div dir="ltr">> requires some more work on your part, but breaks out all the pins. It is <br>
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<div dir="ltr">> much larger than the UNO sensor shield, but has some nice features. It may <br>
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<div dir="ltr">> require having it built at a PCB company.<br>
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<div dir="ltr">Hi Doug,<br>
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<div dir="ltr">Has Ron released the files for that board somewhere? Because nowadays it's<br>
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<div dir="ltr">almost trivial to send a board spec off to a fab shop and have them made<br>
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<div dir="ltr">and sent back quickly and cheaply, possibly cheaper than from Adafruit or<br>
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<div dir="ltr">another hobbyist vendor (you may be able to buy them for roughly the cost<br>
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<div dir="ltr">that Adafruit does as an OEM).<br>
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<div dir="ltr">Having the board files available would be a boon to the robotics community,<br>
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<div dir="ltr">as even I (!) am now looking at STM32 boards, among them the Nucleo-64s.<br>
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<div dir="ltr">Cheers,<br>
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<div dir="ltr">Murray<br>
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<div dir="ltr">...........................................................................<br>
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<div dir="ltr">Murray Altheim <murray18 at altheim dot com> = = ===<br>
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<div dir="ltr"><a href="http://www.altheim.com/murray/" target="_blank">http://www.altheim.com/murray/ </a> === ===<br>
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<div dir="ltr"> = = ===<br>
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<div dir="ltr"> In the evening<br>
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<div dir="ltr"> The rice leaves in the garden<br>
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<div dir="ltr"> Rustle in the autumn wind<br>
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<div dir="ltr"> That blows through my reed hut.<br>
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<div dir="ltr"> -- Minamoto no Tsunenobu<br>
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<div dir="ltr">_______________________________________________<br>
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