<div dir="ltr"><div>So far, in the past few months, I have been building Arduino or RPi based robots.</div><div>I decided next, to use the STM32 and ordered a NUCLEO <span style="color:rgb(15,17,17);font-family:"Amazon Ember",Arial,sans-serif;font-size:14px">STM32L476RG Kit.</span></div><div><span style="color:rgb(15,17,17);font-family:"Amazon Ember",Arial,sans-serif;font-size:14px"><br></span></div><div><font color="#0f1111" face="Amazon Ember, Arial, sans-serif"><span style="font-size:14px">Need suggestions for expansion boards that can help me build a robot.</span></font></div><div><font color="#0f1111" face="Amazon Ember, Arial, sans-serif"><span style="font-size:14px">I see many Arduino shields and Pi Hats, but could not locate the right expansion board. </span></font></div><div><font color="#0f1111" face="Amazon Ember, Arial, sans-serif"><span style="font-size:14px"><br></span></font></div><div><font color="#0f1111" face="Amazon Ember, Arial, sans-serif"><span style="font-size:14px">Or instead of the NUCLEO kit, should I be looking at other STM32 boards?</span></font></div><div><font color="#0f1111" face="Amazon Ember, Arial, sans-serif"><span style="font-size:14px">I do not want to build a custom board.</span></font></div><div><font color="#0f1111" face="Amazon Ember, Arial, sans-serif"><span style="font-size:14px"><br></span></font></div><div><font color="#0f1111" face="Amazon Ember, Arial, sans-serif"><span style="font-size:14px">Regards.</span></font></div><div><font color="#0f1111" face="Amazon Ember, Arial, sans-serif"><span style="font-size:14px">- Kumar</span></font></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Oct 20, 2021 at 3:51 PM <<a href="mailto:dprglist-request@lists.dprg.org">dprglist-request@lists.dprg.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Send DPRGlist mailing list submissions to<br>
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Today's Topics:<br>
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1. Re: rtk2go (Karim Virani)<br>
2. Thought this was a cool idea.... (<a href="mailto:pulcher@killercomputing.com" target="_blank">pulcher@killercomputing.com</a>)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Tue, 19 Oct 2021 19:13:35 -0500<br>
From: Karim Virani <<a href="mailto:pondersome64@gmail.com" target="_blank">pondersome64@gmail.com</a>><br>
To: Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</a>><br>
Cc: Iron Reign <<a href="mailto:ironreignrobotics@gmail.com" target="_blank">ironreignrobotics@gmail.com</a>>, DPRG<br>
<<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>><br>
Subject: Re: [Dprglist] rtk2go<br>
Message-ID:<br>
<<a href="mailto:CAKtnkiz_dD81o3A9L88q2EwV7xzUbVoD2FaSLGuCa4HKhhAFjQ@mail.gmail.com" target="_blank">CAKtnkiz_dD81o3A9L88q2EwV7xzUbVoD2FaSLGuCa4HKhhAFjQ@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Yup. It's not a light decision to go down the road to high precision GPS.<br>
The required commitment in time is even more than the 10X dollar cost.<br>
Gotta have a compelling requirement.<br>
<br>
On Mon, Oct 18, 2021 at 6:06 PM Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</a>><br>
wrote:<br>
<br>
> uBlox F9P is ~275$. I cannot afford it at this point of time.<br>
><br>
> Regards.<br>
> - Kumar<br>
><br>
> On Mon, Oct 18, 2021 at 6:05 PM Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</a>><br>
> wrote:<br>
><br>
>> Thanks @IronReign ... I will check out ublox F9P.<br>
>><br>
>> Regards.<br>
>> - Kumar<br>
>><br>
>> On Mon, Oct 18, 2021 at 4:00 PM Iron Reign <<a href="mailto:ironreignrobotics@gmail.com" target="_blank">ironreignrobotics@gmail.com</a>><br>
>> wrote:<br>
>><br>
>>> Kumar,<br>
>>><br>
>>> Looks like that receiver supports multiple constellations, which is<br>
>>> nice, but I'm pretty sure it won't have any RTK features, so you're looking<br>
>>> at your normal 2-3 meter accuracy range. RTK receivers are significantly<br>
>>> more expensive and you'll also need to invest in a matching antenna.<br>
>>> There's a section of my notes the ublox F9P which is the module I'm using.<br>
>>><br>
>>> On Mon, Oct 18, 2021 at 3:19 PM Thalanayar Muthukumar via DPRGlist <<br>
>>> <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>> wrote:<br>
>>><br>
>>>> I am considering adding (<a href="https://www.adafruit.com/product/4415" rel="noreferrer" target="_blank">https://www.adafruit.com/product/4415</a>) to my<br>
>>>> rover.<br>
>>>><br>
>>>> Regards.<br>
>>>> - Kumar<br>
>>>><br>
>>>> On Mon, Oct 18, 2021 at 1:57 PM Thalanayar Muthukumar <<br>
>>>> <a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</a>> wrote:<br>
>>>><br>
>>>>> Thanks Karim for the fairly detailed succinct :-) answer. Really<br>
>>>>> appreciate it.<br>
>>>>> I have downloaded your notes, but have yet to read it.<br>
>>>>><br>
>>>>> As a person who plans to take my rover outdoors,and I plan to have<br>
>>>>> internet access on my rover, it seems I should<br>
>>>>> connect to a NTRIP server at <a href="http://rtk2go.com" rel="noreferrer" target="_blank">rtk2go.com</a> (I live in Allen, TX) and by<br>
>>>>> doing so, I can get higher accuracy.<br>
>>>>><br>
>>>>> Your email was very helpful, Karim. Thanks.<br>
>>>>><br>
>>>>> Regards.<br>
>>>>> - Kumar<br>
>>>>><br>
>>>>> On Mon, Oct 18, 2021 at 12:04 PM Karim Virani <<a href="mailto:pondersome64@gmail.com" target="_blank">pondersome64@gmail.com</a>><br>
>>>>> wrote:<br>
>>>>><br>
>>>>>> That's a big topic and it bleeds into everything RTK very quickly. So<br>
>>>>>> I'll try for an almost succinct answer that should provide search terms for<br>
>>>>>> learning more:<br>
>>>>>><br>
>>>>>> RTK gps rovers require a live timing reference from another specialty<br>
>>>>>> GPS receiver with a well-known location known as a base station or mount<br>
>>>>>> point. The base station needs to be somewhat close to the rover's location<br>
>>>>>> - ideally within 10km, but "long baseline" trials indicate you can get good<br>
>>>>>> solutions out to and beyond 50km depending on geography. The data coming<br>
>>>>>> from the base station is usually formatted as RTCM messages but can be<br>
>>>>>> transferred over any link. Often in very remote locations you have to set<br>
>>>>>> up your own base station and you might use a point-to-point radio link to<br>
>>>>>> communicate between rover and base station.<br>
>>>>>><br>
>>>>>> There are also private, commercial and governmental networks of these<br>
>>>>>> correcting base stations. The private ones are usually monetizing their own<br>
>>>>>> and governmental base stations. These tend to be pricey services from the<br>
>>>>>> traditional hobby robotics viewpoint - they are focused on the survey and<br>
>>>>>> agricultural markets. There is a very large free governmental network (<br>
>>>>>> <a href="http://unavco.org" rel="noreferrer" target="_blank">unavco.org</a>) that serves active fault and mountain areas but that's<br>
>>>>>> mostly on the west coast and the rockies. Texas has a free non-real time<br>
>>>>>> network which can help with post-processing to get a good base-station<br>
>>>>>> fix, but doesn't help with RTK. NASA operates another fairly open network,<br>
>>>>>> but it requires getting an account and authorizing - and I didn't want to<br>
>>>>>> write the authentication code for my robot.<br>
>>>>>><br>
>>>>>> If you have internet access on your rover, one of the ways to get<br>
>>>>>> RTCM messages is from an NTRIP server. So many of those commercial and<br>
>>>>>> government networks operate NTRIP servers. The leading implementation of<br>
>>>>>> NTRIP is called SNIP and the company that makes SNIP also supports a<br>
>>>>>> voluntary NTRIP server for people who want to publish their base stations -<br>
>>>>>> known as "mount points" in NTRIP/SNIP land. That network is available at<br>
>>>>>> <a href="http://rtk2go.com" rel="noreferrer" target="_blank">rtk2go.com</a> It's completely free and requires no authentication to<br>
>>>>>> use as a client.<br>
>>>>>><br>
>>>>>> Anyhow, if you are still reading and still want to learn more, you<br>
>>>>>> can also access my project notes<br>
>>>>>> <<a href="https://docs.google.com/document/d/1S-OwHQL25ngPYy-97KP6jZPA6bVr2L2PiUL6ix_6Dts/edit?usp=sharing" rel="noreferrer" target="_blank">https://docs.google.com/document/d/1S-OwHQL25ngPYy-97KP6jZPA6bVr2L2PiUL6ix_6Dts/edit?usp=sharing</a>>.<br>
>>>>>> These notes are for my outdoor rovers and as source material for videos,<br>
>>>>>> blog articles and presentations I might want to do, so they are a bit<br>
>>>>>> jumbled up. There is a GPS RTK primer that starts on page 16.<br>
>>>>>><br>
>>>>>> -Karim<br>
>>>>>><br>
>>>>>> On Sun, Oct 17, 2021 at 6:44 PM Thalanayar Muthukumar via DPRGlist <<br>
>>>>>> <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>> wrote:<br>
>>>>>><br>
>>>>>>> Hi Karim,<br>
>>>>>>><br>
>>>>>>> What is a rtk2go network and how does one use it?<br>
>>>>>>><br>
>>>>>>> Regards.<br>
>>>>>>> - Kumar<br>
>>>>>>><br>
>>>>>>> On Sun, Oct 17, 2021 at 4:09 PM <<a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a>><br>
>>>>>>> wrote:<br>
>>>>>>><br>
>>>>>>>> Send DPRGlist mailing list submissions to<br>
>>>>>>>> <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
>>>>>>>><br>
>>>>>>>> To subscribe or unsubscribe via the World Wide Web, visit<br>
>>>>>>>> <a href="http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org" rel="noreferrer" target="_blank">http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org</a><br>
>>>>>>>> or, via email, send a message with subject or body 'help' to<br>
>>>>>>>> <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a><br>
>>>>>>>><br>
>>>>>>>> You can reach the person managing the list at<br>
>>>>>>>> <a href="mailto:dprglist-owner@lists.dprg.org" target="_blank">dprglist-owner@lists.dprg.org</a><br>
>>>>>>>><br>
>>>>>>>> When replying, please edit your Subject line so it is more specific<br>
>>>>>>>> than "Re: Contents of DPRGlist digest..."<br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> Today's Topics:<br>
>>>>>>>><br>
>>>>>>>> 1. Re: DPRGlist Digest, Vol 61, Issue 15 (Thalanayar Muthukumar)<br>
>>>>>>>> 2. Re: DPRGlist Digest, Vol 61, Issue 15 (pulcher)<br>
>>>>>>>> 3. Free SSD drive at Micro Center Dallas (Thalanayar Muthukumar)<br>
>>>>>>>> 4. Interesting techniques for 'making & decorating' mechetronics<br>
>>>>>>>> (Carl Ott)<br>
>>>>>>>> 5. Re: RTK corrections source in DFW area? (Karim Virani)<br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> ----------------------------------------------------------------------<br>
>>>>>>>><br>
>>>>>>>> Message: 1<br>
>>>>>>>> Date: Sat, 16 Oct 2021 16:45:47 -0500<br>
>>>>>>>> From: Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</a>><br>
>>>>>>>> To: <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a><br>
>>>>>>>> Cc: <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
>>>>>>>> Subject: Re: [Dprglist] DPRGlist Digest, Vol 61, Issue 15<br>
>>>>>>>> Message-ID: <<a href="mailto:C6BFCA25-36F9-4F55-8CE3-22C187F8F347@gmail.com" target="_blank">C6BFCA25-36F9-4F55-8CE3-22C187F8F347@gmail.com</a>><br>
>>>>>>>> Content-Type: text/plain; charset=us-ascii<br>
>>>>>>>><br>
>>>>>>>> Micro center Dallas say they are currently sold out<br>
>>>>>>>><br>
>>>>>>>> Sent from my iPhone<br>
>>>>>>>><br>
>>>>>>>> > On Oct 16, 2021, at 4:04 PM, <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a><br>
>>>>>>>> wrote:<br>
>>>>>>>> ><br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> ------------------------------<br>
>>>>>>>><br>
>>>>>>>> Message: 2<br>
>>>>>>>> Date: Sat, 16 Oct 2021 17:24:35 -0500<br>
>>>>>>>> From: pulcher <<a href="mailto:pulcher@killercomputing.com" target="_blank">pulcher@killercomputing.com</a>><br>
>>>>>>>> To: Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</a>>,<br>
>>>>>>>> <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a><br>
>>>>>>>> Cc: <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
>>>>>>>> Subject: Re: [Dprglist] DPRGlist Digest, Vol 61, Issue 15<br>
>>>>>>>> Message-ID:<br>
>>>>>>>> <<a href="mailto:mailman.2.1634503868.1684.dprglist-dprg.org@lists.dprg.org" target="_blank">mailman.2.1634503868.1684.dprglist-dprg.org@lists.dprg.org</a><br>
>>>>>>>> ><br>
>>>>>>>> Content-Type: text/plain; charset="utf-8"<br>
>>>>>>>><br>
>>>>>>>> Wife just picked one up.? 2 minutes ago.HaroldSent from my T-Mobile<br>
>>>>>>>> 4G LTE Device<br>
>>>>>>>> -------- Original message --------From: Thalanayar Muthukumar via<br>
>>>>>>>> DPRGlist <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>> Date: 10/16/21 4:45 PM<br>
>>>>>>>> (GMT-06:00) To: <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a> Cc:<br>
>>>>>>>> <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a> Subject: Re: [Dprglist] DPRGlist Digest,<br>
>>>>>>>> Vol 61, Issue 15 Micro center Dallas say they are currently sold outSent<br>
>>>>>>>> from my iPhone> On Oct 16, 2021, at 4:04 PM,<br>
>>>>>>>> <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a> wrote:><br>
>>>>>>>> _______________________________________________DPRGlist mailing<br>
>>>>>>>> listDPRGlist@lists.dprg.orghttp://<br>
>>>>>>>> <a href="http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org" rel="noreferrer" target="_blank">lists.dprg.org/listinfo.cgi/dprglist-dprg.org</a><br>
>>>>>>>> -------------- next part --------------<br>
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>>>>>>>> <a href="http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20211016/a33a2617/attachment.html" rel="noreferrer" target="_blank">http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20211016/a33a2617/attachment.html</a><br>
>>>>>>>> ><br>
>>>>>>>><br>
>>>>>>>> ------------------------------<br>
>>>>>>>><br>
>>>>>>>> Message: 3<br>
>>>>>>>> Date: Sat, 16 Oct 2021 19:13:12 -0500<br>
>>>>>>>> From: Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</a>><br>
>>>>>>>> To: pulcher <<a href="mailto:pulcher@killercomputing.com" target="_blank">pulcher@killercomputing.com</a>><br>
>>>>>>>> Cc: <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a>, <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
>>>>>>>> Subject: [Dprglist] Free SSD drive at Micro Center Dallas<br>
>>>>>>>> Message-ID: <<a href="mailto:205ADA38-0DFD-4C11-8C29-1DE15791571A@gmail.com" target="_blank">205ADA38-0DFD-4C11-8C29-1DE15791571A@gmail.com</a>><br>
>>>>>>>> Content-Type: text/plain; charset="utf-8"<br>
>>>>>>>><br>
>>>>>>>> I went to the store just now and picked one up as well. Thanks<br>
>>>>>>>> Harold.<br>
>>>>>>>><br>
>>>>>>>> Regards.<br>
>>>>>>>> - Kumar<br>
>>>>>>>><br>
>>>>>>>> Sent from my iPhone<br>
>>>>>>>><br>
>>>>>>>> > On Oct 16, 2021, at 5:24 PM, pulcher <<a href="mailto:pulcher@killercomputing.com" target="_blank">pulcher@killercomputing.com</a>><br>
>>>>>>>> wrote:<br>
>>>>>>>> ><br>
>>>>>>>> > ?<br>
>>>>>>>> > Wife just picked one up. 2 minutes ago.<br>
>>>>>>>> ><br>
>>>>>>>> > Harold<br>
>>>>>>>> ><br>
>>>>>>>> ><br>
>>>>>>>> ><br>
>>>>>>>> > Sent from my T-Mobile 4G LTE Device<br>
>>>>>>>> ><br>
>>>>>>>> ><br>
>>>>>>>> > -------- Original message --------<br>
>>>>>>>> > From: Thalanayar Muthukumar via DPRGlist <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
>>>>>>>> ><br>
>>>>>>>> > Date: 10/16/21 4:45 PM (GMT-06:00)<br>
>>>>>>>> > To: <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a><br>
>>>>>>>> > Cc: <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
>>>>>>>> > Subject: Re: [Dprglist] DPRGlist Digest, Vol 61, Issue 15<br>
>>>>>>>> ><br>
>>>>>>>> > Micro center Dallas say they are currently sold out<br>
>>>>>>>> ><br>
>>>>>>>> > Sent from my iPhone<br>
>>>>>>>> ><br>
>>>>>>>> > > On Oct 16, 2021, at 4:04 PM, <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a><br>
>>>>>>>> wrote:<br>
>>>>>>>> > ><br>
>>>>>>>> > _______________________________________________<br>
>>>>>>>> > DPRGlist mailing list<br>
>>>>>>>> > <a href="mailto:DPRGlist@lists.dprg.org" target="_blank">DPRGlist@lists.dprg.org</a><br>
>>>>>>>> > <a href="http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org" rel="noreferrer" target="_blank">http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org</a><br>
>>>>>>>> -------------- next part --------------<br>
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>>>>>>>> <a href="http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20211016/a98cdba3/attachment-0001.html" rel="noreferrer" target="_blank">http://lists.dprg.org/pipermail/dprglist-dprg.org/attachments/20211016/a98cdba3/attachment-0001.html</a><br>
>>>>>>>> ><br>
>>>>>>>><br>
>>>>>>>> ------------------------------<br>
>>>>>>>><br>
>>>>>>>> Message: 4<br>
>>>>>>>> Date: Sun, 17 Oct 2021 09:48:21 -0500<br>
>>>>>>>> From: Carl Ott <<a href="mailto:carl.ott.jr@gmail.com" target="_blank">carl.ott.jr@gmail.com</a>><br>
>>>>>>>> To: DPRG D-List <<a href="mailto:dprglist@dprg.org" target="_blank">dprglist@dprg.org</a>><br>
>>>>>>>> Subject: [Dprglist] Interesting techniques for 'making & decorating'<br>
>>>>>>>> mechetronics<br>
>>>>>>>> Message-ID:<br>
>>>>>>>> <<br>
>>>>>>>> <a href="mailto:CA%2BXqQZTVWYVt6B8078wRecqy0JyuD7vEQi2xE9XkQfLd5t5rZQ@mail.gmail.com" target="_blank">CA+XqQZTVWYVt6B8078wRecqy0JyuD7vEQi2xE9XkQfLd5t5rZQ@mail.gmail.com</a>><br>
>>>>>>>> Content-Type: text/plain; charset="utf-8"<br>
>>>>>>>><br>
>>>>>>>> video starts with the final product<br>
>>>>>>>><br>
>>>>>>>> Techniques are pretty interesting.<br>
>>>>>>>> Build time-lapse starts circa 2:20...<br>
>>>>>>>> <a href="https://youtu.be/rSh0x0GagcQ" rel="noreferrer" target="_blank">https://youtu.be/rSh0x0GagcQ</a><br>
>>>>>>>> -------------- next part --------------<br>
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>>>>>>>> ><br>
>>>>>>>><br>
>>>>>>>> ------------------------------<br>
>>>>>>>><br>
>>>>>>>> Message: 5<br>
>>>>>>>> Date: Sun, 17 Oct 2021 15:03:01 -0500<br>
>>>>>>>> From: Karim Virani <<a href="mailto:pondersome64@gmail.com" target="_blank">pondersome64@gmail.com</a>><br>
>>>>>>>> To: Doug Paradis <<a href="mailto:paradug@gmail.com" target="_blank">paradug@gmail.com</a>>, DPRG <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
>>>>>>>> ><br>
>>>>>>>> Cc: Paul Bouchier <<a href="mailto:paul.bouchier@gmail.com" target="_blank">paul.bouchier@gmail.com</a>><br>
>>>>>>>> Subject: Re: [Dprglist] RTK corrections source in DFW area?<br>
>>>>>>>> Message-ID:<br>
>>>>>>>> <CAKtnkiwq82PVV4riXMP=<br>
>>>>>>>> <a href="mailto:5H9zaTnec3-YE5KJz3pH9TDyPZeNtg@mail.gmail.com" target="_blank">5H9zaTnec3-YE5KJz3pH9TDyPZeNtg@mail.gmail.com</a>><br>
>>>>>>>> Content-Type: text/plain; charset="utf-8"<br>
>>>>>>>><br>
>>>>>>>> Hey Paul,<br>
>>>>>>>><br>
>>>>>>>> I've been using the rtk2go network. It's just a voluntary network,<br>
>>>>>>>> so<br>
>>>>>>>> there's no guarantee that the base stations are correct to a known<br>
>>>>>>>> precision, nor is there an uptime guarantee. It's also very sparsely<br>
>>>>>>>> populated in north Texas:<br>
>>>>>>>><br>
>>>>>>>> [image: image.png]<br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> But I've found the VN1 mount point in Richardson to be very stable<br>
>>>>>>>> and<br>
>>>>>>>> accurate for the last year - though it has had some outages.I've<br>
>>>>>>>> been able<br>
>>>>>>>> to use it up to 35km away and still get an error bar that I can't<br>
>>>>>>>> reliably<br>
>>>>>>>> measure.<br>
>>>>>>>><br>
>>>>>>>> The Arlington mount point also seems stable - it's been there for<br>
>>>>>>>> at least<br>
>>>>>>>> 6 months - but I haven't used it. Others pop up from time to time<br>
>>>>>>>> but<br>
>>>>>>>> haven't lasted long. I've published a base station on rtk2go for<br>
>>>>>>>> short test<br>
>>>>>>>> runs, but have yet to mount my antenna on my roof for a stable<br>
>>>>>>>> offering.<br>
>>>>>>>><br>
>>>>>>>> Best,<br>
>>>>>>>><br>
>>>>>>>> Karim<br>
>>>>>>>><br>
>>>>>>>> On Sun, Oct 17, 2021 at 12:40 PM Doug Paradis <<a href="mailto:paradug@gmail.com" target="_blank">paradug@gmail.com</a>><br>
>>>>>>>> wrote:<br>
>>>>>>>><br>
>>>>>>>> > Paul,<br>
>>>>>>>> > The correct address for the mailing list is<br>
>>>>>>>> <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>.<br>
>>>>>>>> > BTW, Karim has been working with GPS RTK and has used several free<br>
>>>>>>>> > correction data stations in the area.<br>
>>>>>>>> > Regards,<br>
>>>>>>>> > Doug P.<br>
>>>>>>>> ><br>
>>>>>>>> > On Sun, Oct 17, 2021 at 12:35 PM Paul Bouchier <<br>
>>>>>>>> <a href="mailto:paul.bouchier@gmail.com" target="_blank">paul.bouchier@gmail.com</a>><br>
>>>>>>>> > wrote:<br>
>>>>>>>> ><br>
>>>>>>>> >> Hi Doug - long time no see.<br>
>>>>>>>> >><br>
>>>>>>>> >> I tried to send the email below to the dprg list. You can see I<br>
>>>>>>>> used the<br>
>>>>>>>> >> address <a href="mailto:dprglist@dprg.org" target="_blank">dprglist@dprg.org</a>, which is what Carl told me to use.<br>
>>>>>>>> It didn't<br>
>>>>>>>> >> go through. Do I have the address wrong? Anything else you can<br>
>>>>>>>> think of?<br>
>>>>>>>> >><br>
>>>>>>>> >> Thanks for any ideas you might have<br>
>>>>>>>> >><br>
>>>>>>>> >> Paul Bouchier<br>
>>>>>>>> >><br>
>>>>>>>> >> ---------- Forwarded message ---------<br>
>>>>>>>> >> From: Paul Bouchier <<a href="mailto:paul.bouchier@gmail.com" target="_blank">paul.bouchier@gmail.com</a>><br>
>>>>>>>> >> Date: Thu, Oct 14, 2021 at 5:24 PM<br>
>>>>>>>> >> Subject: RTK corrections source in DFW area?<br>
>>>>>>>> >> To: <<a href="mailto:dprglist@dprg.org" target="_blank">dprglist@dprg.org</a>><br>
>>>>>>>> >><br>
>>>>>>>> >><br>
>>>>>>>> >> Does anyone know of any free or low-cost stations that provide<br>
>>>>>>>> internet<br>
>>>>>>>> >> access to GPS RTK corrections data for the Dallas/Fort Worth<br>
>>>>>>>> area?<br>
>>>>>>>> >> Apparently TXDOT has NTRIP servers and makes historical data<br>
>>>>>>>> available but<br>
>>>>>>>> >> AFICT doesn't provide live data. Looking for corrections data to<br>
>>>>>>>> feed to an<br>
>>>>>>>> >> RTK receiver so I don't have to set up my own base station.<br>
>>>>>>>> >> Thanks<br>
>>>>>>>> >> Paul<br>
>>>>>>>> >><br>
>>>>>>>> ><br>
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>>>>>>>> ><br>
>>>>>>>><br>
>>>>>>>> ------------------------------<br>
>>>>>>>><br>
>>>>>>>> Subject: Digest Footer<br>
>>>>>>>><br>
>>>>>>>> _______________________________________________<br>
>>>>>>>> DPRGlist mailing list<br>
>>>>>>>> <a href="mailto:DPRGlist@lists.dprg.org" target="_blank">DPRGlist@lists.dprg.org</a><br>
>>>>>>>> <a href="http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org" rel="noreferrer" target="_blank">http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org</a><br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> ------------------------------<br>
>>>>>>>><br>
>>>>>>>> End of DPRGlist Digest, Vol 62, Issue 1<br>
>>>>>>>> ***************************************<br>
>>>>>>>><br>
>>>>>>> _______________________________________________<br>
>>>>>>> DPRGlist mailing list<br>
>>>>>>> <a href="mailto:DPRGlist@lists.dprg.org" target="_blank">DPRGlist@lists.dprg.org</a><br>
>>>>>>> <a href="http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org" rel="noreferrer" target="_blank">http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org</a><br>
>>>>>>><br>
>>>>>> _______________________________________________<br>
>>>> DPRGlist mailing list<br>
>>>> <a href="mailto:DPRGlist@lists.dprg.org" target="_blank">DPRGlist@lists.dprg.org</a><br>
>>>> <a href="http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org" rel="noreferrer" target="_blank">http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org</a><br>
>>>><br>
>>><br>
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<br>
Message: 2<br>
Date: Wed, 20 Oct 2021 14:51:47 -0500<br>
From: <<a href="mailto:pulcher@killercomputing.com" target="_blank">pulcher@killercomputing.com</a>><br>
To: "'DPRG D-List'" <<a href="mailto:dprglist@dprg.org" target="_blank">dprglist@dprg.org</a>><br>
Subject: [Dprglist] Thought this was a cool idea....<br>
Message-ID: <019f01d7c5eb$eabe1070$c03a3150$@<a href="http://killercomputing.com" rel="noreferrer" target="_blank">killercomputing.com</a>><br>
Content-Type: text/plain; charset="us-ascii"<br>
<br>
No idea of really what to do with it. As you don't generally all the pins<br>
lining up in grouped enough ways...<br>
<br>
<br>
<br>
I haven't really looked at the groupings too hard, so they may be useful.<br>
<br>
<br>
<br>
AmazonSmile: RJ45 GPIO Pinout Breakout Board for Raspberry Pi 1A+ 1B+ 2B 3B<br>
3B+ 3A+ 4B Zero-W : Electronics<br>
<<a href="https://smile.amazon.com/gp/product/B08PZ5H2BP?ref=em_1p_8_im&ref_=pe_37301" rel="noreferrer" target="_blank">https://smile.amazon.com/gp/product/B08PZ5H2BP?ref=em_1p_8_im&ref_=pe_37301</a><br>
40_609534790> <br>
<br>
<br>
<br>
Harold<br>
<br>
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<br>
End of DPRGlist Digest, Vol 65, Issue 1<br>
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</blockquote></div></div>