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Thread: Stand Alone SSRs

  1. #1
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    Lightbulb Stand Alone SSRs

    My manager at work has found out about my light display, and he is excited about it. He wants me to design and create a sign to put in the window of your logo and of an acronym we have. He wants them to be controlled with lights and be almost like a neon sign. I have the design of the signs and everything, but I don't know what to do about the controller. I only need 4 channels for each sign, and they need to be ran from an SSR, but it cannot be connected to a computer, any ideas?

    Is there a way that I can program the Pic to run a 10 second sequence and loop itself over and over while it is plugged in? I can't have a computer sitting there running the signs.

    Any ideas or suggestions would be great!

    Thanks guys and gals!

    Jesse

  2. #2
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    Default Re: Stand Alone SSRs

    Check out the 675 controller on Dirk's store here:

    http://diychristmas.org/store/product.php?id_product=79

    It's a 4 channel stand-alone controller that runs through a programmed sequence when given 5v power. I was looking at the code for it today and it seems like it would be easy to do a series of short standalone sequence using one of these and a dirkscheapSSR.

  3. #3
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    Default Re: Stand Alone SSRs

    Jesse, If you are looking for a low cost, quick, and easy solution then I agree with amps. The 675 and some Dirk cheap SSRs would be a great choice. If you are looking for a project to learn how this stuff works then I suggest you take a look into PICaxe micro-controllers. My son and I recently built a stoplight it was only 3 channels but there is an extra output pin so 4 channels is certainly possible. here is a link with a few details about the project http://doityourselfchristmas.com/for...r-my-son-and-I
    Blinky Flashy on a budget since 2009
    2009: 32 channels of Grench
    2010: 80 channels of home etched Ren-16 Simple and Home etched SSRneons.
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  4. #4
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    Default Re: Stand Alone SSRs

    This is exactly what the 675 controller was designed to do. Match it up with a DirkCheapSSR and you're in business. Power the 675 with a 5v wall wart and you're done.

    http://digwdf.com/store/
    The DIGWDF Store is closed for all sales. Thanks to everyone who supported us through the years!
    User guides, documentation and other files are still free and available for downloading.

  5. #5
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    Default Re: Stand Alone SSRs

    Quote Originally Posted by dirknerkle View Post
    This is exactly what the 675 controller was designed to do. Match it up with a DirkCheapSSR and you're in business. Power the 675 with a 5v wall wart and you're done.
    Ok, so I am thinking that this may be the simplest way to do this, but I need to clear some thing up first. Does the 675 controller send out data for 4 channels when it receives power? And the pattern that it sends out, and it be changed?

    Secondly, is the DirkCheapSSR dimable or just an on/off controller? I am really thinking about these controllers and I think they would be the best for what I need.

  6. #6
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    Default Re: Stand Alone SSRs

    Quote Originally Posted by jem5136 View Post
    Ok, so I am thinking that this may be the simplest way to do this, but I need to clear some thing up first. Does the 675 controller send out data for 4 channels when it receives power? And the pattern that it sends out, and it be changed?
    Yes, the 675 can control 4 external channels as in sending the control signal to turn something on or off. The ASM firmware is available and yes, it can easily be changed. Several timing options are included in the firmware and you can create different delay times by simply calling different delay periods.

    Secondly, is the DirkCheapSSR dimable or just an on/off controller? I am really thinking about these controllers and I think they would be the best for what I need.
    The DirkCheapSSR is indeed dimmable. However, if you want the 675 controller to perform dimming, you'll need to swap the PIC12F675 chip with a PIC12F683 which has PWM capability, and you'll have to add code for your own PWM control. The default 675 firmware does not include PWM capability. The 675 and 683 chips are directly pin-compatible.

    http://digwdf.com/store/
    The DIGWDF Store is closed for all sales. Thanks to everyone who supported us through the years!
    User guides, documentation and other files are still free and available for downloading.

  7. #7
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    Default Re: Stand Alone SSRs

    I want to do something very similar. Not new to blinky, but new to programming stuff and want to learn. Any pointers? Where is ASM firmware available?

  8. #8
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    Default Re: Stand Alone SSRs

    Quote Originally Posted by Zwiller View Post
    I want to do something very similar. Not new to blinky, but new to programming stuff and want to learn. Any pointers? Where is ASM firmware available?
    Like you, I'm not new to blinky flashy, but I don't know much about programming. But I would like to have the sign to be able to dim, so any tips on how to do that would be awesome. I can switch the pics out, that's not a problem, its just the programming that I have no clue about.

  9. #9
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    Default Re: Stand Alone SSRs

    What type of lights are you planing to use? Swapping the PIC will allow you to dim DC LEDs but AFAK there is no ZC signal input to the 675 controller. Without a ZC dimming of AC lights will be poor at best.

    Tyler
    Blinky Flashy on a budget since 2009
    2009: 32 channels of Grench
    2010: 80 channels of home etched Ren-16 Simple and Home etched SSRneons.
    [URL="http://www.vimeo.com/user2720474/videos"]My videos [/URL]

  10. #10
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    Default Re: Stand Alone SSRs

    The 675 controller only has a DC power supply so there is no AC available. This being a DIY site, it would be possible to add a zero-crossing opto to the DirkCheapSSR and send the Z/C pulse back on one of the unused CAT5 wires. Pin-5 on the 675 board is currently defined as ‘unused’.

    This way you could have dimming capability but you would still need to write the code.
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