<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">I was able to get RPLIDAR communication with RPI4 and also running ROS Melodic, thanks to Harold.<div><br></div><div>Thanks everyone for the pointers and suggestions.</div><div><br></div><div>Regards.</div><div>- Kumar<br><br><div dir="ltr">Sent from my iPhone</div><div dir="ltr"><br><blockquote type="cite">On Sep 26, 2021, at 1:56 AM, Thalanayar Muthukumar <tnkumar@gmail.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><meta http-equiv="content-type" content="text/html; charset=utf-8">Thanks Doug. I will check this out.<div>I have tried various things but not succeeded yet.</div><div><br></div><div>Regards.</div><div>- Kumar<br><br><div dir="ltr">Sent from my iPhone</div><div dir="ltr"><br><blockquote type="cite">On Sep 26, 2021, at 1:10 AM, Doug Paradis <paradug@gmail.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr">Kumar,<div> You might find this Instructable useful:<a href="https://www.instructables.com/Using-RPlidar-With-Robot-Navigation/"> https://www.instructables.com/Using-RPlidar-With-Robot-Navigation/</a>.</div><div>Regards,</div><div>Doug P.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Sep 25, 2021 at 11:58 PM Doug Paradis <<a href="mailto:paradug@gmail.com" target="_blank">paradug@gmail.com</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"><div dir="ltr">Kumar,<div> Harold has worked with ROS2. I believe Chris has worked with ROS1. They generally are present at RBNV on Tuesday. </div><div><br></div><div>Regards,</div><div>Doug P. </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Sep 25, 2021 at 10:50 PM Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</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"><div dir="ltr"><div>Hi Doug,</div><div><br></div><div>I am going with ROS1 as I have heard it is the stable release.</div><div>Would you propose to go with ROS2?</div><div><br></div><div>Regards.</div><div>- Kumar</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Sep 25, 2021 at 9:17 PM Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</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"><div dir="ltr">ROS1</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Sep 25, 2021 at 9:00 PM Doug Paradis <<a href="mailto:paradug@gmail.com" target="_blank">paradug@gmail.com</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"><div dir="ltr">Kumar,<br><div> Are you planning to use ROS2 or ROS1?</div><div>Regards,</div><div>Doug P.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Sep 25, 2021 at 8:29 PM Thalanayar Muthukumar via DPRGlist <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@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">I figured this out by using instructions from Exomy software instructions … <br>
<br>
Sent from my iPhone<br>
<br>
> On Sep 25, 2021, at 5:32 PM, Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com" target="_blank">tnkumar@gmail.com</a>> wrote:<br>
> <br>
> I am struggling with installing ROS on RPI4. I guess there are some dependencies with Ubuntu images that should be used. Has anybody done this and can provide guidance? I want to subsequently connect RPLIDAR A1M8<br>
> <br>
> Regards.<br>
> - Kumar<br>
> <br>
> Sent from my iPhone<br>
> <br>
>> On Sep 25, 2021, at 4:24 PM, <a href="mailto:dprglist-request@lists.dprg.org" target="_blank">dprglist-request@lists.dprg.org</a> wrote:<br>
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>> 1. Re: ChiBot RoboMagellan videos from 2010-2012 (<a href="mailto:jsampson@pobox.com" target="_blank">jsampson@pobox.com</a>)<br>
>> 2. Who Knew? The Most Important Device In The Universe Is<br>
>> Powe? (Carl W Ott Jr)<br>
>> <br>
>> <br>
>> ----------------------------------------------------------------------<br>
>> <br>
>> Message: 1<br>
>> Date: Fri, 24 Sep 2021 23:29:19 +0000 (UTC)<br>
>> From: "<a href="mailto:jsampson@pobox.com" target="_blank">jsampson@pobox.com</a>" <<a href="mailto:jsampson@pobox.com" target="_blank">jsampson@pobox.com</a>><br>
>> To: "<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>" <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>><br>
>> Subject: Re: [Dprglist] ChiBot RoboMagellan videos from 2010-2012<br>
>> Message-ID: <<a href="mailto:807121260.773830.1632526159852@mail.yahoo.com" target="_blank">807121260.773830.1632526159852@mail.yahoo.com</a>><br>
>> Content-Type: text/plain; charset="utf-8"<br>
>> <br>
>> I have two older ChiBots Robomagellan videos on my YouTube channel from 2009.<a href="https://www.youtube.com/user/jws8675309/videos" rel="noreferrer" target="_blank">https://www.youtube.com/user/jws8675309/videos</a><br>
>> Jeff Sampson<br>
>> <br>
>>> Message: 1<br>
>>> Date: Wed, 22 Sep 2021 21:37:59 -0500<br>
>>> From: Doug Paradis <<a href="mailto:paradug@gmail.com" target="_blank">paradug@gmail.com</a>><br>
>>> To: DPRG <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>><br>
>>> Subject: [Dprglist] ChiBot RoboMagellan videos from 2010-2012<br>
>>> <br>
>>> Several years ago I watched these videos hosted from the old ChiBot<br>
>>> website. They show a nice variety of robots with different levels of<br>
>>> success. They motivated me to start to build my own rover. I thought that<br>
>>> when the ChiBot club website went dark, the videos were lost. I believe the<br>
>>> club died. However, searching around tonight I found the playlist at<br>
>>> <a href="https://www.youtube.com/playlist?list=PLJpO4U4ErJiwNC2Dzm36eEW2S89NSG9gS" rel="noreferrer" target="_blank">https://www.youtube.com/playlist?list=PLJpO4U4ErJiwNC2Dzm36eEW2S89NSG9gS</a>.<br>
>>> <br>
>>> If you need some inspiration for the next RoboColumbus, check them out.<br>
>>> <br>
>>> BTW, ChiBots seems to have been restarted. I wish them luck.<br>
>>> <br>
>>> Regards,<br>
>>> Doug P.<br>
>> <br>
>> <br>
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>> ------------------------------<br>
>> <br>
>> Message: 2<br>
>> Date: Sat, 25 Sep 2021 15:06:07 -0500<br>
>> From: Carl W Ott Jr <<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] Who Knew? The Most Important Device In The<br>
>> Universe Is Powe?<br>
>> Message-ID: <<a href="mailto:7AA798A6-7123-45A3-A04F-ABC0381ABCD1@gmail.com" target="_blank">7AA798A6-7123-45A3-A04F-ABC0381ABCD1@gmail.com</a>><br>
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>> <br>
>> <a href="https://hackaday.com/2021/09/23/the-most-important-device-in-the-universe-is-powered-by-a-555-timer/" rel="noreferrer" target="_blank">https://hackaday.com/2021/09/23/the-most-important-device-in-the-universe-is-powered-by-a-555-timer/</a><br>
>> <br>
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