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Keyestudio Heart Monitor AD8232 ECG Measurement Module With Sensor Pads

The Keyestudio AD8232 ECG Module is a device for monitoring the electrical activity of the heart. It uses the AD8232 integrated circuit as a front-end for conditioning cardiac bioelectrical signals, making it ideal for heart rate monitoring. The module is low-power and works with a single lead, with included sensor pads for non-invasive measurement.

Package Includes

  • 1 x Keyestudio Heart Monitor AD8232 ECG Measurement Module with Sensor Pads
208.95 AED 208.95 AED Tax Included
208.95 AED Tax Included

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ECG Heart Rate Sensor

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Features

  • AD8232 IC for signal conditioning of cardiac bioelectrical signals
  • Low power consumption for battery-operated use
  • Single-lead ECG monitoring
  • Includes sensor pads to attach to the skin
  • Versatile for monitoring various vital signs
  • Compact size for integration into wearable devices
  • Easy to use with clear instructions
  • Cost-effective compared to other medical monitoring devices

AD8232 Module

Specifications

  • Power voltage: DC 3.3V
  • Output: Analog
  • Interface: RA, LA, RL (3-pin, 2.54mm header or earphone jack)
  • Dimensions: 36 x 31 x 18mm
  • Operating Temperature: -40°C to +85°C

AD8232 Dimensions

Applications

  • Medical Monitoring in hospitals and clinics
  • Fitness Monitoring in smartwatches or fitness trackers
  • Wearable Devices like smart shirts or patches
  • Research studies on heart rate variability
  • Home Health Monitoring
  • Educational purposes for teaching cardiac physiology

Pin Connections

Pin Name Description Usage
GND Power Supply Ground Ground
3.3V Power Supply 3.3V Power Supply
OUT (ADC) Operational Amplifier Output Connect to ADC input for conditioned heart rate signal
LO- Leads Off Comparator Output (-IN electrode disconnected) High when -IN disconnected, low when connected
LO+ Leads Off Comparator Output (+IN electrode disconnected) High when +IN disconnected, low when connected
SDN Shutdown Control Input Drive low to enter low-power shutdown mode
RA RED Biomedical electrode pad RA (input) Instrumentation Amplifier Negative Input (Right Arm)
LA YELLOW Biomedical electrode pad LA (input) Instrumentation Amplifier Positive Input (Left Arm)
RL GREEN Biomedical electrode pad RL (input) Right Leg Drive Output

AD8232 Pinout

 

Sample Project

Circuit:

AD8232 Sample Circuit

Library

No external library is required.

Arduino Code Example


void setup() {
  Serial.begin(9600);
  pinMode(10, INPUT); // LO+ detection
  pinMode(11, INPUT); // LO- detection
}

void loop() {
  if((digitalRead(10) == 1) || (digitalRead(11) == 1)) {
    Serial.println('!');
  } else {
    Serial.println(analogRead(A0)); // Heart signal
  }
  delay(1);
}

After uploading, you can view the heart rate values on the serial monitor or serial plotter. For advanced visualization, the Processing IDE can be used to plot real-time ECG data.

Heart Rate Display

Notes

  • This module is not a replacement for professional medical equipment.
  • Consult a qualified healthcare provider for any heart health concerns.
  • Follow manufacturer guidelines for accurate and safe usage.

References