µ[micro]electronics info

A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.




Because I have not tested all electronic circuits mentioned on this pages, I cannot attest to their accuracy; therefore, I do not provide a warranty of any kind and cannot be held responsible in any manner.

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Electronics sthetoscope

This project is an attempt to build a portable electronic stethoscope that selectively
amplifies body sound signals for clear auscultation by applying various digital filters
using Microchip dsPIC capabilities along with Microchip’s low noise op-amps and PGA.

This dsPIC30F2012-based electronic stethoscope selectively amplifies body sound signals for clear auscultation. The portable system features a digital readout displaying temperature and pulse rate data. In this project the existing acoustic stethoscope’s bell is used in conjunction with a microphone for body sound signal sensing.

Project description (PDF)

Project files (ZIP)

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