8 years, 7 months ago.

Heartbeat experts question!!

I'm planing to do a programming for a heart rate monitor, and hesitating from where I should start, I have already made the heartbeat sensor by infrared LEDs, the maximum voltage was 2ish volt! What this thing based on to get it work? Any suggestions please? I am a beginner programmer, I'm using. STM board.

Thank you all for reading my essay.

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