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<p>Folks at the meeting mentioned that Pis generally don't pull the
power that is specified. I looked again at the specs for earlier
Pis. I'd forgotten the Pi 3B had built in WiFi. Since I have one,
I powered it up using an SD card that was already in place. It
booted fine and power draw is much lower than the 'rating'. Now I
just need to remember how to set up doing remote development from
my PC to the Pi. <br>
</p>
<p>Might look at a Pi 4 when they become available in the middle of
2022. <br>
</p>
<div class="moz-signature"><font face="Comic Sans MS"
color="#000080"> <br>
-73 - <br>
<b>Rud Merriam K5RUD</b> <br>
<a href="http://mysticlakesoftware.com/"> <i>Mystic Lake
Software</i> </a> <br>
<br>
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<div class="moz-cite-prefix">On 11/23/21 2:12 PM, Chris N wrote:<br>
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<li class="MsoListParagraph"
style="margin-left:0in;mso-list:l0 level1 lfo1">I can only
suggest the fairly obvious: add a power source that is
dedicated to powering either your SBC or your Oak or
both. Of course that assumes you have room for it. If
space is tight, maybe you could go for 2 separate 1S cells
so that you can place them on your platform where there is
room, but still wire them up in series so you end up with a
2S LiPo or 2S LiIon that you then step down to 5.2V </li>
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<p class="MsoNormal" style="border:none;padding:0in"><b>From:
</b><a href="mailto:dprglist@lists.dprg.org"
moz-do-not-send="true">Rud Merriam via DPRGlist</a><br>
<b>Sent: </b>Tuesday, November 23, 2021 1:44 PM<br>
<b>To: </b><a href="mailto:dprglist@lists.dprg.org"
moz-do-not-send="true">DPRG</a><br>
<b>Cc: </b><a href="mailto:rudmerriam@gmail.com"
moz-do-not-send="true">Rud Merriam</a><br>
<b>Subject: </b>[Dprglist] SBC's for Controlling Robot</p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>Hi,</p>
<p>Should be making the conference tonight so tossing out a
question for discussion. </p>
<p>I want to put an SBC on my RVR. The power limitation drawing
from the RVR is 2.1 amp. The board I was going to us, an UP
Board, draws more than that. Raspberry Pis approach that
limit, also. Beagle board Black with WiFi seems a possibility.
Another requirement is supporting C++ for development. </p>
<p>I am going to put one of the new Oak Dev cameras which will
add to the power draw and the amount of computing power
needed. That eliminates the Arduino family. </p>
<p>I suspect I won't be able to work within that power budget
but want to see if anyone has suggestions. </p>
<p>----</p>
<p>The accomplishment over the last couple weeks has been
programming a Sparkfun ESP32 Thing board and my PC to connect
over WiFi. Over the WiFi I can send commands to the RVR from
my desktop system. May have a video showing this. But have
some Thanksgiving activities to handle which may keep me from
getting a video done. </p>
<p class="MsoNormal" style="margin-bottom:12.0pt">-- <br>
<span style="font-family:"Comic Sans MS";color:navy"><br>
-73 - <br>
<b>Rud Merriam K5RUD</b> <br>
<a href="http://mysticlakesoftware.com/"
moz-do-not-send="true"><i>Mystic Lake Software</i> </a></span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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