The AD8232 ECG Sensor Module is a compact and low-power analog front-end designed for accurate measurement of electrical activity of the heart (ECG). It is optimized for wearable and portable health monitoring devices and provides clean ECG waveforms by amplifying and filtering biopotential signals. Supplied with ECG cable and disposable electrodes, this module is ideal for biomedical research, educational projects, and non-clinical heart monitoring applications.
Core Sensor Specifications
• Sensor Type: ECG (Electrocardiogram) analog front-end
• Sensor IC: AD8232
• Measurement Type: Heart electrical activity (ECG waveform)
• Output Type: Analog ECG signal
Electrical & Interface
• Operating Voltage: 3.3 V – 5 V
• Output Interface: Analog output pin
• Control Pins: LO+, LO− (lead-off detection)
• Interface Pins: VCC, GND, OUTPUT, LO+, LO−
• Power Consumption: Low power, suitable for wearable devices
Performance Characteristics
• High signal-to-noise ratio for clear ECG signals
• Integrated instrumentation amplifier and filters
• Fast signal stabilization
• Detects lead-off conditions for electrode safety
Physical Characteristics
• Module Type: PCB-mounted ECG sensor board
• Accessories: ECG cable and disposable electrodes
• Compact and lightweight design
• Suitable for portable and wearable systems
Compatibility
• Arduino Uno / Nano / Mega
• ESP8266 / ESP32
• STM32 and other ADC-based microcontrollers
• Raspberry Pi (with external ADC)
Key Advantages
• Integrated signal conditioning for ECG measurement
• Low power consumption
• Easy analog interfacing
• Widely used in biomedical and educational projects
Technical Insights
• Measures biopotential differences from chest electrodes
• Not a medical-grade diagnostic device
• Proper electrode placement is critical for clean signals
• Analog output requires ADC sampling and filtering in software
Applications
• Heart rate and ECG monitoring
• Wearable health devices
• Biomedical signal analysis
• Educational and research projects
• IoT health monitoring systems
Pro Tip
• Clean skin before placing electrodes
• Minimize movement for noise-free signals
• Use proper grounding for stable ECG output
• Apply digital filtering for smoother waveforms
Package Includes
• 1 × AD8232 ECG Sensor Module
• 1 × ECG cable
• 3 × Disposable ECG electrodes