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hotwaterwizard

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Posts posted by hotwaterwizard

  1. If we could figure out a way to use a button to increase voltage every time you push it and have a capacitor discharge timer to decrease the voltage slowly unless the button was pushed again we could use a Bargraph Display Driver like the LM3914 ,5 or 6 to do the job. Look at the Datasheet for more Ideas.

    http://www.national.com/ds/LM/LM3914.pdf

    http://www.national.com/ds/LM/LM3915.pdf

    http://www.national.com/ds/LM/LM3916.pdf

  2. Look at these links.

    led counters
    The Last circuit is closest.
    If you use a switch debouncer circuit instead of the timer it will count up when you push the button . Use a delayed on timer with a reset triggered by the same debouncer for the down sequence then you will have your circuit. The only problem is resetting the whole circuit. I think you can just turn off the power to reset the sequence. ???

    http://a402.phys.psu.edu/402/Exp/E8/E8.html

    http://www.interq.or.jp/japan/se-inoue/e_ckt14.htm

    http://www.geocities.com/lemagicien_2000/elecpage/bounlite/bounlight.html

    post-787-14279141641805_thumb.gif

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