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OT: Something Like Chess Timer, But Single?

Discussion in 'Electronic Design' started by Jim Thompson, Mar 17, 2007.

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  1. Jim Thompson

    Jim Thompson Guest

    I'm looking for something like a chess timer, but just single, not

    I want to set anywhere from 10 seconds to one minute.

    Whack the start button, runs, single chime or beep at end of time

    Whack again, restarts the timer cycle.

    All I've been able to find are duals.

    ...Jim Thompson
  2. All I've been able to find are duals.

    and a saw? (c:
  3. Eeyore

    Eeyore Guest

    Is this a troll ?

  4. Chuck Harris

    Chuck Harris Guest

    What you are describing is the cheap kitchen timer that can be found
    at any kitchen supply store.

  5. Joerg

    Joerg Guest

    But you'd have to watch the sand all the time and changing the timer
    length requires "re-sanding".
  6. Rich Grise

    Rich Grise Guest

    Can you say, "monostable multivibrator" (one-shot)?

    Because that's what you've just described. A chess clock is like
    a timeout stopwatch. Push button A, start the timer, push button
    B, it pauses, push button A, it picks up where it left off, etc.

    Good Luck!
  7. Jim,

    Did you have something like this in mind?
  8. Jim Thompson

    Jim Thompson Guest

    But you have to reset those each time of use, don't you?

    ...Jim Thompson
  9. Jim Thompson

    Jim Thompson Guest


    I just point at their GPS, or Cell Phone, or WiFi, or Digital TV Tuner
    or ...

    ...Jim Thompson
  10. Joerg

    Joerg Guest

    You could fire up the old solder iron and build one around a CD4060. I
    know that's not the answer you wanted to hear but then you could later
    tell your grandkids: Look, grampa made that!

    Some of the kitchen timers might be able to do that. We had an analog
    one. Don't remember the brand, it didn't survive the container shipping.
    It could be set to a certain time and then used if you had to stir
    something in intervals. Beep, stir, whack, tick-tock-tick-tock, beep, ...
  11. Eeyore

    Eeyore Guest

    Something you can actually do unlike mic amps you mean ?

  12. Jim Thompson

    Jim Thompson Guest

  13. Joerg

    Joerg Guest

    I can only point to things that people only see when they are in a real
    pickle (cardiology department). And then they could care less.

    But a chip in some box ain't the same as a kludged device that looks
    like it's going to fall apart yet works every single time. "Grampa made
    the injection controller chip in this here car" will probably harvest
    a yawn from the little ones ;-)
  14. Chuck Harris

    Chuck Harris Guest

    No, I have one of the cheapy digital units. It is a little 2 inch
    square white thing with large LCD digits on the readout. You use
    the minute and seconds buttons to set it, and press start to make
    it go. When it times out it beeps a couple of beeps, and the display
    goes back to the set time. Press start, and the timer goes through
    its cycle again.

  15. Chuck,

    That sounds just like the cooking timer I have with two exceptions.
    First, mine displays hours and minutes so you have to set it in whole
    minutes. Second, it resets to 00:00 instead of the previously set
    interval when it times out and beeps.

    It appears that a key to Jim finding one that will work for him is to
    make sure that it displays and can be set in seconds plus having a
    memory function so that he can at least recall the previous interval.
  16. Chuck Harris

    Chuck Harris Guest

    The one I have is labeled "Cooks Club", and it has 3 buttons.

    Two are labeled: mins secs
    ~ ----------
    ~ clear
    ~ M
    and the third is labeled: start e
    ~ ----- m
    ~ stop o
    ~ r
    ~ y

    First you set the timer with the mins and secs buttons in the usual
    way. Then you press the start/stop button, and the timer will start.
    [If you press the stop, it will stop]
    When the timer times out, it will beep until you press the start button
    again. When you do that, it will stop beeping, and the set time will
    again appear in the window.

    This timer has a magnet, and a spring clip on the back so you can stick
    it to a fridge, or clamp it to a pocket.

  17. Richard H.

    Richard H. Guest

    Counts down verbally (optional); announcements get more granular closer
    to zero. Stop-Memory-Start would serve your application.

    This is overkill for your spec, but very handy at other times when you'd
    like a warning before it beeps - say, so you're not caught in the middle
    of an assembly step when it goes off.
  18. ehsjr

    ehsjr Guest
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