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<div class="moz-cite-prefix">John Gorkos wrote:<br>
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<blockquote type="cite"
cite="mid:60CA9B9B-4698-473A-B915-2BECFEA831B0@gmail.com">
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<div class="WordSection1"><span style="color:black">Instead of
using HTTP submit, use UDP packets, on port 8080.<o:p></o:p></span>
<p class="MsoNormal"><span style="color:black">The format is<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">user CALL pass
00000<linefeed><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><properly
formatted “on-air” packet><linefeed><o:p></o:p></span></p>
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<p>You're probably aware, but worth noting: UDP has no confirmation,
no ACKs, no retries, no reliability at all. It's certainly VERY
lightweight, your one over-the-air packet is creating exactly one
over-the-internet packet as well, but you're sending the packet
out, and have no idea whether it was received at the far end...</p>
<p>... on the other hand, the same can probably be said of all ham
radio, and APRS in particular, so if it already went over-the-air
unreliably, the UDP might be the least of your worries :-)<br>
</p>
<blockquote type="cite"
cite="mid:60CA9B9B-4698-473A-B915-2BECFEA831B0@gmail.com">
<div class="WordSection1"><span style="color:black">[...] A little
bit of solder and some wire, plus about 10 minutes of
programming will get you an internet enabled (or
APRS-over-TCPIP enabled) environmental sensor for under $7 a
piece.</span></div>
</blockquote>
<p>Very cool! I may have missed, have you shared all this online,
like on a github or anywhere? Would love to hack around with it
myself.<br>
</p>
<p>I've often referred to APRS as "IoT a quarter-century ahead of
its time" :-)<br>
</p>
Nick VA3NNW<br>
<pre class="moz-signature" cols="72">--
"Nosey" Nick Waterman, VA3NNW/G7RZQ, K2 #5209.
use Std::Disclaimer; <a class="moz-txt-link-abbreviated" href="mailto:sig@noseynick.net">sig@noseynick.net</a>
Hacking's just another word for nothing left to kludge.
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