Application similar to an ECG, where the heartbeat is shown.
It is an ECG itself, because it captures the ECG electrical signals.
This application captures the heartbeat by absorbing light during contractions of blood vessels, measured by a sensor LDR.
But similarly behaves as an ECG.
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The download of the files needed for the project, is this link:
http://bit.ly/app_arduino_ecg
Note .: The link will redirect to a folder on Dropbox and is only download.
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A sample APP working:
https://www.youtube.com/watch?v=jP-_n5NDX5U
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Download