heartbeat signal

Discussion in 'The Projects Forum' started by israsilva, Mar 18, 2009.

  1. israsilva

    Thread Starter New Member

    Mar 18, 2009
    2
    0
    Hello, I'm new in PIC programing. I started with a PIC 16F84A.
    What I need to do is to receive a heartbeat signal from a pulsemeter and send it to a led that flashes the same frecuency of this signal. Then I need to take another heartbeat signal and send it to another led so the first led keep the first heartbeat signal and the second led keep the second heartbeat signal and the same for some 8 more leds.
    ¿Can this be done with a PIC or do I need something else?
    Do someone has an idea of how to do this?
    Thank you very much !
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Yes it can be done with a single PIC if its has enough inputs (digital or analog) to read all these signals and enough outputs to drive your leds.
    If you read each signal in sequence you will be able to turn on/off the leds very accurately according to the signal's beat because the PIC works very faster than the beats of a heart.
     
  3. israsilva

    Thread Starter New Member

    Mar 18, 2009
    2
    0
    Can it be done if it's just one input the one that reads the heartbeat pulses and reproduce each lecture in a new led ?
     
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    How the microcontroller will know which input is read at the moment?
     
  5. amaynew

    Member

    Jul 9, 2007
    18
    0
    Just a question.. how do you aim to filter the noise in the environment?
     
  6. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Which noise?
    What environment?
    On what signal is the noise?
     
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