Electric Stethoscope

This project is a simple electric stethoscope that can be used to listen to the body sounds of a patient. Prepared for AGU SAPA capsule final project.

Pre-requisites

Hardware

• Arduino Uno
• 2 wire electret microphone
• Doctor's stethoscope
• Resistors
  • 1 x 1kΩ
  • 1 x 4.7kΩ
  • 2 x 10kΩ
  • 1 x 22kΩ
  • 1 x 100kΩ
• Capacitors
  • 2 x 10nF (Connected in series for 5nF)
  • 1 x 47nF
  • 1 x 1uF
• 1 x Low-Noise Operational Amplifier (NE5532, TL072, etc.)
• Breadboard
• Jumper wires
• Optional:
  • Soldering iron and its accessories
  • Pertinax board to solder the circuit (or you can simply buy a PCB)
  • 3D printer to print the box for the circuit

Software

• Arduino IDE
• LTspice
• Python 3.6 or higher

Running the project

• Clone the repository

• Connect Arduino Uno to your computer

• Build the circuit following the circuit diagram

• Connect circuit to Arduino Uno

• Open the Arduino IDE and upload the arduino/arduino.ino file to the Arduino Uno

• Run Python server by running the following commands:

  cd app
  pip install -r requirements.txt
  python main.py

• Enjoy!

Circuit Diagram

Gallery

Authors

• Barış DEMİRCİ
• Selin Nisa AKGÖL
• Nuri İNCEÖZ