human pulse / heartbeat sensor

[mikie_121]

Hi.

I remember seeing a thread quite a while ago about how to make a sensor to detect a heartbeat. I've search the forums but come up emtpy. Can someone else find it? Or does anyone know how to get a PICAXE to read a human pulse?

I vaguely recall something about detecting red LED light through a finger.

Mike

 

[lanternfish]

This might help: http://www.picaxeforum.co.uk/showthread.php?t=8141&highlight=ecg&page=2

Cheers

 

[Rickharris]

If you don't want to hear or log the results just push a drawing pin into the end (non striking) of a match stick - Lay your arm on the table palm up

Put the drawing pin/match on you wrist so the match stands up and watch your pulse move the match.

I guess you could use that as an input to a picaxe counter somehow!

 

[eclectic]

mikie

Search for
oximeter

http://www.picaxeforum.co.uk/showthread.php?t=7753&highlight=oximeter
e

 

[mikie_121]

Thanks guys. I'll head down to my local children's ward and try to scab a few disposable sensors.