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Xbee on 435Mhz ? — Parallax Forums

Xbee on 435Mhz ?

PodionPodion Posts: 90
edited 2013-05-22 20:17 in Accessories
Hi all

I have a project and I want to use a RF 12 chanel board that I have.
The RF module frequency is 435Mhz. I want to use a xbee ( if its possible) module to replace the remote of the RF module.

Comments

  • ElectricAyeElectricAye Posts: 4,561
    edited 2013-05-04 16:51
    Is this the sort of thing you are hoping to do?

    http://www.kickstarter.com/projects/1757054094/xbee-handheld-controller
  • PodionPodion Posts: 90
    edited 2013-05-04 17:31
    Humm nop my project is for home automation.
  • ElectricAyeElectricAye Posts: 4,561
    edited 2013-05-04 18:38
    Have you had a chance to read through the Parallax xbee tutorial?
    http://www.parallax.com/portals/0/downloads/docs/prod/book/122-32450-xbeetutorial-v1.0.pdf
  • Duane DegnDuane Degn Posts: 10,588
    edited 2013-05-04 21:43
    Podion wrote: »
    Hi all

    I have a project and I want to use a RF 12 chanel board that I have.
    The RF module frequency is 435Mhz. I want to use a xbee ( if its possible) module to replace the remote of the RF module.

    How does the board communicate with the 435MHz module? Is there some sort of microcontroller on the board? What does board (via RF) communicate with?
  • PodionPodion Posts: 90
    edited 2013-05-05 16:51
    Im not sure if its a microcontroller... i think its a encoder/decoder. The RF module come whit a remote. There a link to see the module and remote.
    http://www.cafr.ebay.ca/itm/121083783150?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648
  • Duane DegnDuane Degn Posts: 10,588
    edited 2013-05-05 18:08
    Podion wrote: »
    Im not sure if its a microcontroller... i think its a encoder/decoder. The RF module come whit a remote. There a link to see the module and remote.
    http://www.cafr.ebay.ca/itm/121083783150?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648

    Did you want to just replace the transmitter side with a XBee? If so, I don't think it doable.

    This looks like it's just a remote relay, right?

    I wouldn't think the relay end of it would be hard to replicate using a uC of your choice. Then converting to XBees would be a lot easier.

    Have you seen the little Nordic nRF24L01+ modules? They are silly cheap. If you wanted to control multiple items, I think the Nordic modules would end up saving you a lot of money.

    The Nordic devices are harder to use than XBees. There are example programs for both the Propeller and the BS2 that would take a lot of the pain out of using the Nordic devices.
  • ElectricAyeElectricAye Posts: 4,561
    edited 2013-05-05 18:09
    Podion wrote: »
    ...
    The RF module frequency is 435Mhz. I want to use a xbee ( if its possible) module to replace the remote of the RF module.

    I do not think there are any Xbee modules that work at 435 MHZ, and even if there were such a module, it would probably communicate with only another Xbee module.

    However, it is very possible to build a complete system that does home automation by using Xbees as transmitters and receivers interfaced with various switches, such as relays, etc. for opening gates, etc. But in that case, you would not be modifying your existing equipment - instead, you would be building your own system from the ground up.

    If the only thing you want to do is build your own remote, then you might try looking on ebay for just the 435MHz remotes that you can program with a code (that might be your easiest, cheapest option), or look for small radio transmitters which you would then need to control with a microcontroller to provide the proper codes.
  • PodionPodion Posts: 90
    edited 2013-05-22 20:17
    Ok thanks for the tip.. I think I'm going to hack the remote and plus the prop to it as a simple on/off. It's just for light control :-)
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