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Accurate Timer & Cadence Meter

Discussion in 'Beginner Electronics' started by Timothy Creswick, Jul 12, 2003.

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  1. Hi,

    I'm considering undertaking a project which requires a timer accurate to
    1/10sec. It should be capable of start, stop and reset only. PCB space is at
    a premium, so I wondered if anyone could suggest an IC which does this,
    using minimal additional components. I intend to interface to a series of
    7-seg displays.

    The second part of the project is a cadence meter, I'd like to have a
    reading in Hz. My input signal consists of a series of pulses of slightly
    varied length in the range of 10-40 Hz. Again, I would like to interface
    this to a 7 seg display. I have several ideas on how i could construct this,
    however I wondered what people's experience is on the matter. Most
    importantly, I would like to generate the first reading within 5-10 seconds,
    no more!

    Many thanks in advance,

    Tim
     
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