DT’s Elapsed Timer Magic Trick


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  1. #1
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    Default Re: DT’s Elapsed Timer Magic Trick

    There’s no known clock reference being fed into it.
    It can currently be any of three clocks so it’s unknown.
    The pic’s clock is set to HS, and is clocked by one of the three signals connected.
    8, 16 or 24 MHz.

  2. #2
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    Default Re: DT’s Elapsed Timer Magic Trick

    Honestly, I don't understand.
    Are you asking us to help you come with a way to do it or have you already done it and asking us if we too can figure it out?
    I can't help thinking about what date it is today....

    /Henrik.

  3. #3
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    Default Re: DT’s Elapsed Timer Magic Trick

    Is it ok to swear here?

  4. #4
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    Default Re: DT’s Elapsed Timer Magic Trick

    I’m asserting it’s done, and asking if you too can figure it out.

    I should have picked another day. It’s the 2nd now in Aus, but I’ll come back tomorrow
    It is what I say it is I swear.

  5. #5
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    Default Re: DT’s Elapsed Timer Magic Trick

    That’s awesome. I just need to make a YouTube video right now 10 hours ahead UTC.
    This should be a pretty good April Fool’s joke.

  6. #6
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    Default Re: DT’s Elapsed Timer Magic Trick

    I’m disappointed
    I guess I’ll have to spill the answer tomorrow.


  7. #7
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    Default Re: DT’s Elapsed Timer Magic Trick

    I am a total noob, but I feel such cleverness deserves a guess - even if only to prove how far superior your skills. I am unwilling to just shrug and wait for you to reveal your skill without so much as voicing the consideration I have given - not so much a joke, but puzzle - you have provided.

    I will guess that there is some capacitance in the circuit and that you use some application of the RCTime constant as a reference; different clocks would, I think, reveal the clock speed by the timer values measured when charging and discharging a capacitor from a known voltage. I take my guess from watching the LED (which, I believe has a capacitance associated - and conveniently a resistor in series) which is slow to start - I'm hoping, because it is busy measuring...

  8. #8
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    Default Re: DT’s Elapsed Timer Magic Trick

    Interesting idea, but not tested by me so I don’t know if it would work

    The virtue in what I’m doing is someone might come up with a better way,
    and at the moment I would appreciate that.
    It’s not genius trust me, you’ll find out. Someone is close on another forum.

  9. #9
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    Default Re: DT’s Elapsed Timer Magic Trick

    2015 nominee for best computer generated animations.

    Robert

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