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A physical building block design might be fun down the road. For
now I'm going for the industrial approach to modularity, with
DIN-rail mounted devices.<br>
<br>
Scott<br>
N1VG<br>
<br>
<div class="moz-cite-prefix">On 4/13/2017 10:43 AM, Jim Alles wrote:<br>
</div>
<blockquote
cite="mid:CABS3LnLnre60F3mX4N7Yt5OMj6tsD3F7t38z3CT1N8CGEvnPiQ@mail.gmail.com"
type="cite">
<div dir="ltr"><font face="georgia, serif">Scott, my brain might
be mush, but it mashed up your message with
<div class="gmail_default" style="display:inline"> a recent
article about</div>
</font> 'modular phones'.
<div><br>
</div>
<div>
<div class="gmail_default" style="font-family:georgia,serif"><a
moz-do-not-send="true"
href="https://www.cnet.com/news/google-lg-lenovo-modular-phones/"
target="_blank">https://www.cnet.com/news/<wbr>google-lg-lenovo-modular-<wbr>phones/</a></div>
<br>
<font face="georgia, serif">Amateur Radio building blocks? SDR
could be a part of the equation, I don't know.</font></div>
<div><a moz-do-not-send="true"
href="https://www.youtube.com/watch?v=oDAw7vW7H0c"
target="_blank">phone bloks (youtube)</a><br>
<br>
<a moz-do-not-send="true"
href="https://venturebeat.com/2017/01/10/inside-project-ara-googles-revolutionary-modular-phone/"
target="_blank">https://venturebeat.com/2017/<wbr>01/10/inside-project-ara-<wbr>googles-revolutionary-modular-<wbr>phone/</a><br>
<br>
<div class="gmail_default" style="font-family:georgia,serif">Thanks,</div>
<div class="gmail_default" style="font-family:georgia,serif">Jim
A.</div>
<br>
<br>
<br>
---------- Forwarded message ----------<br>
From: Scott Miller <<a moz-do-not-send="true"
href="mailto:scott@opentrac.org" target="_blank">scott@opentrac.org</a>><br>
Date: Tue, Apr 11, 2017 at 8:06 PM<br>
Subject: Re: [aprssig] APRS = the IoT of Amateur Radio [was:
APRS to the planet rescue?<br>
To: <a moz-do-not-send="true" href="mailto:aprssig@tapr.org"
target="_blank">aprssig@tapr.org</a><br>
<br>
<br>
I remember seeing an APRS flood monitor at Dayton a few years
ago. They weren't particularly cheap devices, but I think
they used ultrasonic gauges. A simple float switch would do
it.<br>
<br>
The DRA818V (and probably others) transceiver modules have
finally started to make a lot of these applications cheap and
practical on 2 meters without resorting to scavenged HTs.
They're under $15 and good for at least half a watt of TX
power, or a full watt if you believe the data sheet.<br>
<br>
My current project isn't focusing on low power consumption
right now, but without any effort at power saving it's still
not too bad - I just tested it at about 80 mA @ 5 volts with
WiFi connected and idle.<br>
<br>
I'll definitely work on getting something out there to cover
the low power sensor mesh stuff. Having a high-level
scripting language geared specifically for APRS and radio
applications should make it a lot easier to tackle some of
these projects than starting from scratch with an Arduino,
with a lot less power consumption than a single-board computer
like a Raspberry Pi.<br>
<br>
Some of this I'm going to do for myself, market viability be
damned, because I've got too many little sensor and remote
monitoring and control projects of my own that don't rate
custom hardware and firmware. Even if no one else ever buys
any, I'm going to have a shelf full of complete APRS gadgets
that I can use to throw together just about anything without
having to compile any code.<br>
<br>
Scott<br>
N1VG<br>
<br>
<br>
And didn't we discuss a standardized type-length-value
extension scheme a while back? Aside from OpenTRAC, that is.
At the very least I think any more extensions to the format
need a formal definition, maybe a BNF grammar, to guarantee
that everything is unambiguous and parseable.<br>
<br>
Scott<br>
N1VG<br>
<br>
<br>
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target="_blank">aprssig@tapr.org</a><br>
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target="_blank">http://www.tapr.org/mailman/<wbr>listinfo/aprssig</a><br>
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