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Thread: DIY Chrony - Working!

  1. #46
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    Thanks for the assist, will pplay around this evening.
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  2. #47
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    Crab and I tested the rig last night, it appears the problem lies with the distance that the TX200/Rx must be away from each other. The LED's I had only worked at around 15mm apart for some reason or other. So today I got a new set of LED's from a different supplier, and will try these this evening. Will keep an update on success or defeat.

    ps: I paid 10x less for the new LED's than at the place I bought my LED's the 1st time......talk about rip-off!
    Last edited by SEF; 08-07-14 at 15:20.
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  3. #48
    Sharp Shooter

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    Yes the LED's need to be compatible with each other otherwise you will have trouble. I paid R2 odd for mine each
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  4. #49
    Sharp Shooter
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    Supercool SEF, I hope you get this to work
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  5. #50
    Marksman

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    Sorry for bringing up an old thread, but with photobucket's new policy I am not able to view the photos or diagrams in the forum originally referenced. Can someone please help me with the wiring diagram?
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  6. #51
    Prof. Jan Itor

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    Quote Originally Posted by ryno smith View Post
    Sorry for bringing up an old thread, but with photobucket's new policy I am not able to view the photos or diagrams in the forum originally referenced. Can someone please help me with the wiring diagram?

    Fixed these for you.
    Poor Man's Electronic Chronograph - Yellow Airgun Forum Archive
    New Updated 2.0 Version of Poor Man's Chrono - Yellow Airgun Forum Archive

    (I am a janitor there too)
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  7. #52
    Marksman

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    Thank you very much!
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  8. #53
    Marksman

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    Managed to finish a working one on Friday evening after I had to rebuild it 4 times to get it working reliably.
    I can now shoot through it and be 90% certain it will pickup through both of the sensors without going through an enormous effort of lining up the barrel.

    When I finally got it working I noticed there isn't a lot of background noise in the data and when a shot is fired it maxed out on volume.
    Attached below is a shot string I did , an example of a shot's data and a photo of the setup.

    Shot string:
    12/29/2018 7:23:34 PM , 1 , 780.48780
    12/29/2018 7:23:53 PM , 2 , 162.71186
    12/29/2018 7:24:32 PM , 3 , 813.55932
    12/29/2018 7:25:07 PM , 4 , 793.38843
    12/29/2018 7:25:30 PM , 5 , 800.00000
    12/29/2018 7:25:52 PM , 6 , 806.72269
    12/29/2018 7:27:34 PM , 7 , 806.72269
    12/29/2018 7:28:37 PM , 8 , 786.88525





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