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RF Rain Detector Circuit Help

Discussion in 'Radio and Wireless' started by leo_098, Oct 6, 2011.

  1. leo_098

    leo_098

    1
    0
    Oct 6, 2011
    Hi Guys.

    Im currently working on a university project which requires using a simple circuit to detect water and use it in a consumer product. We have chosen a rain detector as there aint too many options available with the device we have which is:

    http://www.maplin.co.uk/water-alarm-22564

    Basically, we want to connect this to a RF transmitter and receiver so when the rain detector is activated it sends the signal to a key ring carried around by the user. The RF Transmitter & receiver are:

    http://www.maplin.co.uk/rf-transmitter-receiver-and-transceiver-modules-267236

    Can anyone help me with connecting the circuit with the transmitters please.

    Also, I noticed this product what does it do?

    http://www.maplin.co.uk/rf-modem-modules-267317?ordercode=A65JN

    Many Thanks

    Liam
     
  2. BobK

    BobK

    7,645
    1,663
    Jan 5, 2010
    The radio modules are not what you want. They would require a microcontroller on each side to operate and are serious overkill for what you are doing. I am not sure where to look for a simple on / off radio transmitter and receiver that is what you need.

    Bob
     
  3. TBennettcc

    TBennettcc

    292
    2
    Dec 4, 2010
    Try looking into the 1-Wire protocol with Zigbee / X-Bee:

    http://en.wikipedia.org/wiki/1-Wire

    http://www.maxim-ic.com/products/1-wire/

    http://en.wikipedia.org/wiki/Zigbee

    http://en.wikipedia.org/wiki/XBee

    http://en.wikipedia.org/wiki/Digi_International

    A buddy of mine in college used these radios to build a sensor network. I think this is close to what he was working on:

    http://www.trossenrobotics.com/p/Xbee-Communication-Starter-Kit.aspx

    I'm not sure how much programming was actually involved, as I was working on a separate project at the time. Good luck with your project.
     
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