SKU: SENS-0158
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Generic ECG AD8232 Heart ECG Monitoring Sensor Module

₹1,339.00 (Inclusive of all taxes)
Out of Stock

The AD8232 ECG Sensor Module is a low-power, single-lead analog front-end designed for capturing and amplifying cardiac biopotential signals. It provides a clean analog output compatible with 3.3V/5V microcontrollers like Arduino, Raspberry Pi, and ESP32 for heart rate monitoring and educational ECG projects.

Features

  • Low-power analog front-end optimized for battery-powered wearable and portable devices.
  • Single-lead ECG configuration with high common-mode rejection for accurate signal capture.
  • Integrated right leg drive (RLD) amplifier and noise filtering for motion artifact reduction.
  • Wide operating voltage range from 1.8V to 3.6V for flexible system integration.
  • Compact module form factor with breakout pins for easy connection to external electrodes and MCUs.

Out of stock

Description

The AD8232 module is a dedicated integrated circuit functioning as a complete analog front-end for electrocardiogram (ECG) and other biopotential measurement applications. It amplifies and filters the microvolt-level electrical signals generated by the heart, conditioning them into a robust analog waveform suitable for analog-to-digital conversion by a microcontroller. Its design includes a two-pole high-pass filter and a two-pole low-pass filter to suppress baseline wander and muscle noise, respectively.

Featuring a shutdown mode for ultra-low power consumption, the module is engineered for integration into continuous monitoring systems. The output is a single-ended analog signal representing the differential voltage between the electrode inputs, simplifying the interface to common MCU ADC pins. The module requires three external electrodes (RA, LA, RL) to form a complete measurement circuit.

Key Features

  • Precision Instrumentation Amplifier with high input impedance and adjustable gain.
  • Integrated Right Leg Drive (RLD) feedback amplifier for improved common-mode noise rejection.
  • Configurable high-pass and low-pass filters for baseline restoration and anti-aliasing.
  • Low quiescent current draw, enabling extended operation in battery-powered health monitors.
  • Lead-off detection capability to alert when an electrode becomes disconnected.
  • 3.3V/5V logic compatible shutdown (SDN) pin for power management.
  • Compact PCB layout with standard 2.54mm pitch breakout pins for rapid prototyping.
  • Robust signal conditioning suitable for educational, fitness, and clinical R&D applications.

Applications

  • Wearable fitness trackers and heart rate monitors for sports and wellness.
  • Educational platforms and university labs for biomedical signal processing demonstrations.
  • Prototyping for portable ECG event recorders and Holter monitor systems.
  • Integration into IoT health devices for remote patient monitoring and telemedicine.
  • Biofeedback systems and stress detection applications using heart rate variability (HRV) analysis.

Technical Specifications

Item TypeSensor Module
Model No. / NameECG Sensor Module (AD8232)
Core ICAnalog Devices AD8232
Operating Voltage Range1.8V to 3.6V
Signal OutputAnalog ECG Signal
ECG ConfigurationSingle-Lead (RA, LA, RL)
InterfaceAnalog Output, Shutdown Pin
Shipping Weight0.02 kg
Shipping Dimensions8 × 7 × 2 cm

Frequently Asked Questions

What is the correct wiring for the three electrodes (RA, LA, RL) to this AD8232 module?

Connect the Right Arm (RA) electrode to the module's IN+ pin, the Left Arm (LA) electrode to the IN- pin, and the Right Leg (RL) electrode to the RLD pin. The RLD provides a driven reference to cancel common-mode interference. The OUTPUT pin provides the conditioned analog ECG signal to your microcontroller's ADC input.

Can I power this module directly from a 5V Arduino pin?

No, the AD8232 IC has an absolute maximum supply voltage of 3.6V. You must use a 3.3V regulator or the Arduino's 3.3V pin. The analog output signal is also referenced to the supply voltage, so using a 3.3V supply ensures compatibility with 3.3V logic ADCs. A level shifter is not required for the analog signal if your MCU ADC is also 3.3V.

How do I reduce motion noise and baseline drift in the ECG signal?

The module's built-in filters help: the AC-coupled high-pass filter removes baseline wander, and the low-pass filter cuts high-frequency muscle noise. For best results, ensure electrodes have good skin contact, use shielded cables if extending leads, and keep the module close to the body. The RLD circuit actively reduces 50/60 Hz mains interference.

Does this module provide a digital heart rate output, or do I need to calculate it?

This module outputs a raw analog ECG waveform. You must connect the OUTPUT pin to an MCU's ADC channel and implement software algorithms (e.g., QRS complex detection) to calculate heart rate (BPM) and heart rate variability (HRV). Libraries are available for platforms like Arduino to assist with this signal processing.

Package Includes

  • 1 x ECG Module AD8232 Heart ECG Monitoring Sensor

Additional Information

Weight 0.02 kg
Dimensions 8 × 7 × 2 cm