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ekg-monitor-en.md

Heart of the Project: The Arduino EKG Monitor

The EKG Monitor (Electrocardiogram) is a sophisticated project that steps into the world of biomedical engineering. It allows you to visualize the electrical signals generated by your heart as it beats, providing a fascinating look at the human body's internal mechanics.

ekg_monitor_arduino_display_1772706773611.png

How It Works: Signal Processing

Heart signals are extremely weak (measured in millivolts).

  1. The Lead System: We use three electrodes (RA, LA, and RL) placed on the chest or limbs to pick up the electrical potentials.
  2. Amplification: The AD8232 Heart Rate Monitor module acts as an instrumentation amplifier, filtering out muscle noise (EMG) and power line interference.
  3. Visualization: The Arduino reads the clean analog output and sends it to a computer (using Processing software) or a small OLED/TFT screen to draw the classic P-QRS-T wave pattern.

Essential Hardware

  • Arduino Uno/Nano: For data acquisition.
  • AD8232 Heart Rate Monitor Module: The core medical sensor interface.
  • ECG Lead Electrodes (Disposable): To connect the user to the circuit.
  • 0.96" OLED Screen (Optional): For portable heart rhythm monitoring.

ad8232_ecg_sensor_macro_1772706791753.png

Safety Note

Important: This is an educational project only and should never be used for medical diagnosis or clinical purposes. Always ensure the Arduino is powered by a battery (not a wall plug) when a person is connected to the electrodes to provide complete isolation from the mains grid.

ข้อมูล Frontmatter ดั้งเดิม 

title: "EKG Monitor with Arduino"
description: "Explore medical electronics! Build a real-time electrocardiogram (ECG) monitor using an Arduino and the AD8232 heart rate sensor to visualize your heart's electrical activity."
category: "Health & Wellbeing"
difficulty: "Advanced"