AD8232 Heart ECG Monitoring Sensor Module [3.3V]

Description:    
CJMCU AD8232 Heart ECG Monitoring Sensor Module [3.3V] is an electrocardiogram sensor with single lead output to monitor heartbeat rate, based on AD8232 Single-Lead, Heart Rate Monitor Front End chip. This chip is designed for biopotential signal detecting, extracting, amplifying, and filtering, even in fully noisy conditions. It has an internal low power analog-to-digital converter (ADC) or microcontroller to achieve the desired signal absolutely. The chip consists of an instrumentational amplifier (to amplify ECG signals when it rejects the electrode half-cell potential), an OP-AMP, an amplifier for right leg drive, a middle supply reference buffer, a detector circuit for leads off status, and a self rapid restoring (to recover the signal after leads connecting).  
This module can measure the heart performance all the time with a low price and compact size, of course for educational or funny experiments. The module output can be used to chart heartbeat rate like a traditional ECG, but not as a replacing of the medical ECG.
This module has a 9 pin interface, 2 input terminal for supplying (3.3V and GND) and 2 pins for detecting leads off situation (LO+, LO-), one pin for the output signal, and  SDN pin. This module can communicate with microcontroller and Arduino boards through this interface.  Also, the other 3 pins for getting the additional sensor prob inputs (apart of individual sensor prob): RA (Right Arm), LA (Left Arm), and RL (Right Leg) pins.  It has an LED indicator light to show the heartbeat rate through blinking with the same rate of the heartbeat. Of course, this module is an ECG processing board and requires sensor probs (biomedical sensor pads and sensor cable) to function, which is provided separately.

Features:
Chip: AD8232
Operating Voltage: 3.3V
Output Type: Analog
Leads-Off Detection
Shutdown Pin
LED Indicator
3.5mm Jack for Biomedical Pad Connection
Pin Number: 9 Pin
Size: 36mm x 30mm x 7mm

Application:
Fitness and exercise heart rate monitoring
Portable ECG
Remote health care
Gaming peripherals
Biological signal acquisition

Notes:
This ECG module is not medical devices, so not use it for health diagnose and treatment. 

Package Include:
1 x ECG Sensor Module
1 x Pin header