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<div class="moz-cite-prefix">Those nrf24 dongles can be found on
eBay for as low as $2...<br>
<a class="moz-txt-link-freetext"
href="http://www.ebay.ca/itm/Perfect-High-Quality-New-NRF24L01-2-4GHz-Wireless-Transceiver-Module-Arduino-NEW-/300768426858?pt=LH_DefaultDomain_0&hash=item460731fb6a">http://www.ebay.ca/itm/Perfect-High-Quality-New-NRF24L01-2-4GHz-Wireless-Transceiver-Module-Arduino-NEW-/300768426858?pt=LH_DefaultDomain_0&hash=item460731fb6a</a><br>
<br>
Michael<br>
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-freetext" href="http://n0m1.com/">http://n0m1.com/</a>
<a class="moz-txt-link-freetext" href="http://krazatchu.ca/">http://krazatchu.ca/</a>
</pre>
<br>
<br>
On 9/20/2012 11:10 AM, Sungjune Lee wrote:<br>
</div>
<blockquote
cite="mid:CADSVN7b+31bzdD2Pfz2ukeBiTkA3e2FsQ8ATp4FCryqtbJtY_g@mail.gmail.com"
type="cite">Hi Jean-Marc,
<div><br>
</div>
<div>As far as I can see, it is not easy to build a RF circuit
from the scratch. It usually requires a lot of trial-and-error.
So I prefer off-the-shelf modules. Currently I'm testing two
different modules:</div>
<div><br>
</div>
<div>One is based on the very popular Nordic nRF24+ chip (around
$5)</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://www.hoperf.com/rf_fsk/24g/RFM70.htm">http://www.hoperf.com/rf_fsk/24g/RFM70.htm</a></div>
<div><br>
</div>
<div>I grabbed mine here</div>
<div><br>
</div>
<div><a moz-do-not-send="true" href="http://www.futurlec.com/">http://www.futurlec.com/</a></div>
<div><br>
</div>
<div>The other one is Microchip MRF24J40 module (around $9)</div>
<div><br>
</div>
<div>
<a moz-do-not-send="true"
href="http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en535967">http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en535967</a></div>
<div><br>
</div>
<div>I think major distributors carries it. You can do a search
here:</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://www.findchips.com/avail?part=MRF24J40MA">http://www.findchips.com/avail?part=MRF24J40MA</a></div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>Thanks</div>
<div><br>
</div>
<div>Sungjune Lee</div>
<div>=======================</div>
<div><a moz-do-not-send="true" href="mailto:sjlee@sdcontrols.com">sjlee@sdcontrols.com</a></div>
<div><a moz-do-not-send="true"
href="http://arduinoexplained.blogspot.ca/">http://arduinoexplained.blogspot.ca/</a></div>
<div><br>
</div>
<div>
<br>
</div>
<div><br>
</div>
<div><br>
<br>
<div class="gmail_quote">On Thu, Sep 20, 2012 at 10:52 AM,
Jean-Marc LeBlanc <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:jeanmarc.leblanc@gmail.com" target="_blank">jeanmarc.leblanc@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hey I am
very interested in your solution. I am looking to interface
it with arm. what IC are you using to send the 2.4 ghz?<br
clear="all">
<br>
Jean-Marc Le Blanc<br>
---<br>
<br>
"Do you pine for the nice days of Minix-1.1, when men were
men and wrote their own device drivers?" Linus Torvalds
<div class="HOEnZb">
<div class="h5"><br>
<br>
<br>
<br>
<div class="gmail_quote">On Thu, Sep 20, 2012 at 10:44
AM, Sungjune Lee <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:sjlee@sdcontrols.com" target="_blank">sjlee@sdcontrols.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Mahdi,
<div><br>
</div>
<div>I happen to building a open-source wireless
network for use with low end microcontroller
systems such as Arduino. For now, the protocol
takes up around 30K of program memory and 2K of
data, which hopefully will be downsized to fit
into Arduino Uno. If successful, it will be using
off-the-shelf IEEE802.15.4 wireless module ($5 -
$10) rather than wifi. So you can build each
control/sensor board for around $10. I'll post the
schematic and the source on my blog sometime later
in this year.</div>
<div><br>
</div>
<div>If you want a ready to use solution then please
check this:</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://www.panstamp.com/" target="_blank">http://www.panstamp.com/</a></div>
<div><br>
</div>
<div>Thanks,</div>
<div><br>
</div>
<div>Sungjune Lee</div>
<div>========================================</div>
<div><a moz-do-not-send="true"
href="mailto:sjlee@sdcontrols.com"
target="_blank">sjlee@sdcontrols.com</a></div>
<div><a moz-do-not-send="true"
href="http://arduinoexplained.blogspot.ca/"
target="_blank">http://arduinoexplained.blogspot.ca/</a></div>
<div><br>
</div>
<br>
<div class="gmail_quote">
<div>On Thu, Sep 20, 2012 at 9:46 AM, Mahdi Yusuf
<span dir="ltr"><<a moz-do-not-send="true"
href="mailto:yusuf.mahdi@gmail.com"
target="_blank">yusuf.mahdi@gmail.com</a>></span>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0
0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div>
<div>
Hi,
<div><br>
</div>
<div>I was wondering if anyone at the ModLab
has played around with home automation. I
have been playing around with this sort of
thing for a long time, its really
interesting now that things like
the raspberry pi board are available at
such a small size. </div>
<div><br>
</div>
<div>I was wondering if anyone knows of wifi
switches and sensors that could be
deployed around the house to control
things like lights and lamps on the cheap
that doesn't require a lot of installation
and relativity cheap. I am hoping to build
something small like a prototype and see
where it goes from there. </div>
<div><br>
</div>
<div>I would like to use the raspberry pi as
the controller and have sensors connect to
it over the wifi and potentially have
something like an iPhone do the
connecting. I have built servers like this
before, I just looking for some
information on hardware and what is
possible.</div>
<span><font color="#888888">
<div>
<div><br>
</div>
-- <br>
<div>Mahdi Yusuf</div>
<br>
</div>
</font></span><br>
</div>
</div>
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</blockquote>
</div>
<br>
<br>
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</div>
<br>
</div>
</div>
</blockquote>
</div>
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</blockquote>
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