Heart beat counter with atmega128 ?

bianchi77 said:

Guys,

How to measure heartbeat with atmega128 ?
I have created the sensor module with TCRT5000 and op amp and the pulse already,
My question is how can I count / measure the pulse and display it to my LCD on BPM ?

Thanks

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The heart rate meter is used to measure the heart beats per minute from finger placing between the sensor. The sensor is made of simple photo resistor and LED. The pulses from the circuit are them amplified and converted into TTL logic pulses using comparator Operational Amplifier.

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yura717 said:

**broken link removed**

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