Does anyone know a sensor for heart beat ?

assadmahmood said:

But how to check heart beat with photo transistor and LED?

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tpetar said:

Quite simply.

**broken link removed**


Introducing Easy Pulse: A DIY photoplethysmographic sensor for measuring heart rate

Good stuff, I'll have a look, thank you
https://embedded-lab.com/blog/?p=5508

Easy Pulse (Version 1.1) Sensor Overview (Part 1)
https://embedded-lab.com/blog/?p=7336


Easy Pulse (Version 1.1) Sensor Overview (Part 2)
https://embedded-lab.com/blog/?p=7400



In my photo album you can see my version of this device.



Best regards,
Peter

:wink:

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Take ultra high bright red led, put it close to finger, and on other side you will see each heartbeat if you are live in that moment. :smile:

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bianchi77 said:

Good stuff, I'll have a look, thank you

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