I have developed an electronic stethoscope using standard circuit given on :
https://www.aaroncake.net/circuits/steth.asp
Now, I am able to the heart pulses on microphone.My problem here is that ,I want to give these pulses to a micro controller AT89c51 for counting purpose. I don't know how to do it as the amplitude of pulses is very less and also it contains noise .
My goal is to achieve NOISE FREE pulses so that they can be fed to micro controller.
Kindly help me regarding this
you can also e-mail me on microcaretech@gmail.com or microcare@hotmail.com
Thanking you
https://www.aaroncake.net/circuits/steth.asp
Now, I am able to the heart pulses on microphone.My problem here is that ,I want to give these pulses to a micro controller AT89c51 for counting purpose. I don't know how to do it as the amplitude of pulses is very less and also it contains noise .
My goal is to achieve NOISE FREE pulses so that they can be fed to micro controller.
Kindly help me regarding this
you can also e-mail me on microcaretech@gmail.com or microcare@hotmail.com
Thanking you