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Varenr. SEN0213

Gravity: Analog Heart Rate Monitor Sensor (ECG) For Arduino


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  • Gravity Heart Rate Sensor Selection Guide
    2020-04-24 08:42:58



The DFRobot Heart Rate Monitor Sensor is used to measure the electrical activity of the heart. This electrical activity can be charted as an ECG and output as an analog reading. An ECG signal can be extremely noisy so we have included an AD8232 chip which will generate a clear signal from the PR and QT Intervals. Using the Arduino IDE "Serial Plotter" feature,  you are also able to view plotted ECG output on  PC!

Gravity: Arduino Heart Rate Monitor Sensor (ECG) -DFRobot

To ease the difficult of using this sensor,  a Gravity Interface is adapted to allow plug&play.  The IO expansion shield is the best match for this sound senor connecting to your Arduino. As this sensor can work at 3.3V which make it compatible with Raspberry Piintel edison, joule and curie. 

Analog sensor to monitor heart rate (ECG) with AD8232

NOTE: This product is NOT a medical device and is not intended to be used as such or as an accessory to such nor diagnose or treat any conditions.

 Gravity Heart Rate Sensor Selection Guide 

Name Gravity:Analog ECG Heart Rate Sensor Gravity:Analog/Digital PPG Heart Rate Sensor
SKU SEN0213 SEN0203
IC/Module AD8232 SON1303
Operation Voltage(VCC) 3.3~6V 3.3~6V
Gravity: Analog
(Digital 0~3.3V)
Gravity: Analog/Digital 
(Analog 0~VCC)
(Digital 0~VCC)
Measurement Principle ECG(Electrocardiogram) PPG(Photo Plethysmo Graphy)
Average Power <10mA <10mA
35*22 mm 28*24 mm
1.ECG method, accurate and stable
2.Three electrodes
3.3.3V/5V compatible
1.PPG method, convenient and fast
2.Analog (pulse wave) & Digital(heart rate), configurable output
3.3.3V/5V compatible


  • Input Voltage: 3.3-6V (5V recommended)
  • Output Voltage: 0-3.3V
  • Interface: Analog
  • Operating current: <10mA
  • imension: 35 x 22(mm), 1.378" x 0.866"(in)
  • Interface Type: PH2.0-3P

Shipping List

  • Heart Rate Monitor Sensor x1
  • Sensor cable - Electrode Pads (3 connector) x1
  • Biomedical Sensor Pad x6
  • PH2.0-3P cable x1

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