AD8232 ECG Sensor Module + 3-Lead Cable

The AD8232 ECG Sensor Module Kit is a board that helps get make stronger and clean up small signals from the heart even when there is noise from moving around or when the electrodes are not close. It takes the electricity from the heart and turns it into a clear voltage signal that can be read by a normal microcontroller.

The kit comes with a 3-lead cable that has 3.5 mm connections that fit with the special pads that stick to the skin. This makes it a great choice, for watching health tracking fitness and making your projects with Arduino or ESP32 for measuring body signs.

Pinout Configuration

• GND: Ground reference pin.

• 3.3V: DC power input (3.0V to 3.6V DC).

• OUTPUT: Analog signal output pin (connect to MCU ADC channel like Arduino A0).

• LO- (Leads-off -): Digital output flag; goes HIGH when the negative lead disconnects.

• LO+ (Leads-off +): Digital output flag; goes HIGH when the positive lead disconnects.

• SDN (Shutdown): Active-low shutdown pin; pull LOW to put the IC into microamp sleep mode.

Key Features

• Built-in High-Pass & Low-Pass Filtering: The onboard passive analog filtering network removes muscle motion noise and baseline drift so you do not need external circuits.
• High Common-Mode Rejection (CMRR): The 80 dB rejection ratio blocks 50Hz/60Hz AC line noise, from home wiring.
• Integrated Leads-Off Detection: Built-in comparators watch electrode contact. Give instant digital alerts when an electrode loses skin contact.
• Complete Plug-and-Play Kit: The kit includes a 3‑lead shielded snap cable that snaps onto standard disposable ECG pads without soldering.