[Lab] Home Automation

[Michael Grant]

Those nrf24 dongles can be found on eBay for as low as $2...
http://www.ebay.ca/itm/Perfect-High-Quality-New-NRF24L01-2-4GHz-Wireless-Transceiver-Module-Arduino-NEW-/300768426858?pt=LH_DefaultDomain_0&hash=item460731fb6a

Michael

-- 
http://n0m1.com/
http://krazatchu.ca/



On 9/20/2012 11:10 AM, Sungjune Lee wrote:
> Hi Jean-Marc,
>
> 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:
>
> One is based on the very popular Nordic nRF24+ chip (around $5)
>
> http://www.hoperf.com/rf_fsk/24g/RFM70.htm
>
> I grabbed mine here
>
> http://www.futurlec.com/
>
> The other one is Microchip MRF24J40 module (around $9)
>
> http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en535967
>
> I think major distributors carries it. You can do a search here:
>
> http://www.findchips.com/avail?part=MRF24J40MA
>
>
>
> Thanks
>
> Sungjune Lee
> =======================
> sjlee at sdcontrols.com <mailto:sjlee at sdcontrols.com>
> http://arduinoexplained.blogspot.ca/
>
>
>
>
>
> On Thu, Sep 20, 2012 at 10:52 AM, Jean-Marc LeBlanc 
> <jeanmarc.leblanc at gmail.com <mailto:jeanmarc.leblanc at gmail.com>> wrote:
>
>     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?
>
>     Jean-Marc Le Blanc
>     ---
>
>     "Do you pine for the nice days of Minix-1.1, when men were men and
>     wrote their own device drivers?" Linus Torvalds
>
>
>
>
>     On Thu, Sep 20, 2012 at 10:44 AM, Sungjune Lee
>     <sjlee at sdcontrols.com <mailto:sjlee at sdcontrols.com>> wrote:
>
>         Hi Mahdi,
>
>         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.
>
>         If you want a ready to use solution then please check this:
>
>         http://www.panstamp.com/
>
>         Thanks,
>
>         Sungjune Lee
>         ========================================
>         sjlee at sdcontrols.com <mailto:sjlee at sdcontrols.com>
>         http://arduinoexplained.blogspot.ca/
>
>
>         On Thu, Sep 20, 2012 at 9:46 AM, Mahdi Yusuf
>         <yusuf.mahdi at gmail.com <mailto:yusuf.mahdi at gmail.com>> wrote:
>
>             Hi,
>
>             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.
>
>             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.
>
>             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.
>
>             -- 
>             Mahdi Yusuf
>
>
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http://krazatchu.ca/

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