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Thread: d.i.y. x10 universal module

  1. #1
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    Default d.i.y. x10 universal module

    See picture,

    I needed a **quiet** x10-controlled relay

    I purchased the UM7206 universal module, but the bistable relay inside is **extremely** loud.

    This thing is an alternative, but it's expensive (in europe) :
    http://www.appdig.com/adicon_new/rly8xa.htm
    and I only needed one relay contact.

    This one is lower cost...
    http://www.cc-concepts.com/products/x10/

    soooo, I built my own, using the same XM10 TTL Interface (TW523 in the USA) as above devices also require...

    The device is based on a PIC 16F84 processor and a 5V reed-relay that I had laying around....

    If anyone wants it, I can publish the c source code for the pic processor (c compiler used : http://www.sourceboost.com/)

    the code is modified from this :
    http://www.blitzlogic.com/x10.htm


    (p.s. the reed relay is connected to my central heating and will allow girder to control the room temperature without using a thermostat)

    Marcel
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    Last edited by mhwlng; November 26th, 2007 at 01:20 AM.

  2. #2
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    Default diy x-10

    Hi, i am constructing my own version. was thinking of using a triac rather than relay, but would be interested in seeing how you implemented the relay if you don't mind posting some details?

    Thanks

    Stuart.

  3. #3
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    Default

    I didn't do anything exciting, I only needed to switch 5V, with low current.

    So, I connected the pic processor output to a transistor, connected to the 5V reed relay in dil16 form factor....
    (see above picture)

    here's another picture


    Marcel
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  4. #4
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    Default

    Hi:

    I would be interested in the source code. Thanks in advance.


    Quote Originally Posted by mhwlng View Post
    See picture,

    This one is lower cost...
    http://www.cc-concepts.com/products/x10/

    soooo, I built my own, using the same XM10 TTL Interface (TW523 in the USA) as above devices also require...


    Marcel

  5. #5
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    Default

    attached...

    (see above url for the original code/hardware)

    note that the code is very simple, it doesn't use interrupts or timers (which would be more elegant)

    Marcel
    Attached Files Attached Files

  6. #6
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    Default

    Thanks Marcel:

    Givess me a start. For my application I want to build a relay board like the one from CC concept except I need to retrieve and process the X10 signals direct from the OEM product, not from the powerline or from a TW523. Any ideas?

  7. #7
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    Default

    the TW523 returns the X10 signal at TTL levels.

    I have no idea what your 'OEM product' does...

    Marcel

  8. #8
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    Default

    It a controller for a aquarium. It communicates by using X10 commands to a PL513 interface to transmit the signals to the mains and subsequently connecting heaters,lights using X10 receiver modules. I want to "direct connect" from the controller straight to a relay board in a sense bypassing the PL513 and the power mains.

    They offer a direct connect relay board DC4/8 but I wanted to go the DIY route.

    http://www.neptunesys.com/

  9. #9
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    you'll have to find the TTL X10 signal, then...
    (i.e. the output of their microcontroller)

    Marcel

  10. #10
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    Default

    Quote Originally Posted by bryanl View Post
    It a controller for a aquarium. It communicates by using X10 commands to a PL513 interface to transmit the signals to the mains and subsequently connecting heaters,lights using X10 receiver modules. I want to "direct connect" from the controller straight to a relay board in a sense bypassing the PL513 and the power mains.

    They offer a direct connect relay board DC4/8 but I wanted to go the DIY route.

    http://www.neptunesys.com/
    Are you sure you want to put the lives of your fish in the hands of the X10 protocol? I used to use X10 also, but it was incredibly unreliable.
    Beware of the robot.

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