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IR Heart Pulse Monitor : Reverse engineered circuit diagram of a pulse sensor circuit board out of a treadmill. Notice that
the output is level shifted for use by CMOS logic running on 4.5V regulated down from the 6V battery. The CMOS logic also controlls the power to the analog circuitry and infrared LED. I do not
gaurantee the accuracy or safety of any information herein.
(added 2/05)
Jogging timer: 3V Battery Powered Beeps after a fixed number of minutes (added 9/04)
Pulse Measurement (Sinus Rythme): When you are in good shape the pulse variation of the heart is a sinus. It is difficult
to mesur it, that is why i propose to build aan electric schematic to visualise it. This rythme ca change without you notice it, but it is forerunner of serious health problems.
(added 08/05)
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