Heartbeat Monitor Circuit with LED and Photocell


Posted on Feb 6, 2014

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.


Heartbeat Monitor Circuit with LED and Photocell
Click here to download the full size of the above Circuit.




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