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<div class="moz-cite-prefix">On 04/11/14 13:52, Paul Harwood wrote:<br>
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<div>Simply put - to answer the door remotely from within the
building (not being tied to the handset).</div>
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<div>Voice is required both ways really.</div>
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<div>I am about to speak to the people who supply the other sets
and will try to sell us something more expensive probably. If
there's something we can donate to hackspace instead, then that
would be cool.<br>
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<div>Spark.io night sounds great! When will that happen though?</div>
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<div>-- Paul</div>
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That is the 22nd November.<br>
<br>
May I offer something up which may or may not be feasible. Why not
do this? Have a Spark Core at either end to switch on low power FM
radio transceivers for the audio, perhaps with something like this
for the transmitter
<a class="moz-txt-link-freetext" href="http://www.circuitsgallery.com/2012/09/simple-portable-FM-transmitter.html">http://www.circuitsgallery.com/2012/09/simple-portable-FM-transmitter.html</a><br>
and handle the door opening etc via digital signals. My concern is
the quality of the audio if it is sent over wifi. Wifi signals can
vary tremendously in quality across a building. They may appear to
work well for computers which can check data and retransmit but
these problems really could mess up audio. Alan has pointed out
there are problems with the quality of the audio.<br>
Why over complicate matters if using non-digital for part of the
system works perfectly.<br>
<br>
If this is needed earlier there is no reason why we can't submit it
with our projects for the instructibles stuff later surely and we
are looking for projects to submit?<br>
<br>
You might also want to create some kind of buzz or bleep to attract
the attention of the user but that is pretty trivial.<br>
<br>
Neil<br>
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<div>On 4 Nov 2014, at 13:27, Gerrit Niezen <<a
moz-do-not-send="true"
href="mailto:gerrit.niezen@gmail.com">gerrit.niezen@gmail.com</a>>
wrote:</div>
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<div style="font-family: Helvetica; font-size: 12px;
font-style: normal; font-variant: normal; font-weight:
normal; letter-spacing: normal; line-height: normal;
orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;">Paul,
what exactly do you want to do? If it's just to duplicate
the ringer and button that should be relatively
straight-forward using relays and a wireless doorbell or
transceiver. Sending/receiving voice would be a bit more
challenging. Maybe a project for Spark.io build night?
(i.e., connect the intercom to the WiFi using a Spark
Core)</div>
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