Homemade ECG
With an analog-to-digital converter and programming the PalmPilot interface. you can build your own ECG(Electrocardiograph).Here are actually parts that requires :One electrocardiograph circuit built, PalmOS type handheld computing device with serial interface.Four AA batteries (or another way to come up with 6 volts on demand).A DBST (or DBDT) switch, a 1 MOhm potentiometer, and telephone wire + jack.These components are used as a power switch, gain controller, and easy way to connect the electrodes, respectively.One Pontech SV203 robot controller.A box, if you are so inclined.
   Homemade ECG
This is full detail on Homemade ECG website
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