Calculating BPM with pulse sensor Amped

Other Hardware Sensors
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I am using this code to calculate the BPM from the pulse sensor, (i attached it) but i am always getting values in the high 100's and 200's. I think i may have to adjust the threshold value to correct this? Honestly, i have zero clue how this works, and if anyone could explain how the BPM is calculated, it would be very helpful :slight_smile: . I also used these posts arduino uno - Getting BPM from the given code - Arduino Stack Exchange

and these:
http://forum.arduino.cc/index.php?topic=140701.0

Thanks everyone!

FINAL.ino (3.58 KB)

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Why not continuing your original thread?

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My computer rebooted and i couldn't find it again.