Heartbeat Monitor Circuit with LED and Photocell

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SPICE simulation of an heartbeat monitor which reveals the heartbeat from the finger. The finger, inside a light screen, between an high intensity led emitter and a photocell, provides the heartbeat signal, which, suitably amplified, is used as input for a microcontroller PIC16F84. Three 7 segments common cathode displays, drived by the PIC, show the heart rate.

  • : Free
  • : Intermediate
  • : 31-50
  • : Proteus
  • : 7+
  • : Yes


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