Gravity: PPG Heart Rate Monitor Sensor for Arduino (Analog/Digital)

SKU:SEN0203 Brand:DFRobot Reward Points: 160
In Stock
Topic: Gravity
Quantity Based Price
  • 5-9$15.20
  • 10-49$14.50
  • 50+$12.90
* Model:
Expected Restock Date: [[restockDate]]


The DFRobot heart rate sensor is a thumb-sized heart rate monitor designed for Arduino microcontrollers.

This heart rate monitor sensor is a pulse sensor which is developed based on PPG techniques. This is a simple and low-cost optical technique that can be used to detect blood volume changing in the microvascular bed of tissues. It is relatively easy to detect the pulsatile component of the cardiac cycle according to this theory.

The sensor has two holes that you can use to attach to your belt. You can wrap on your finger, wrist, earlobe or other areas where it has contact with your skin.

Gravity Interface is adapted to allow plug&play to ease the barrier of usage.  The IO sensor shield is the best option to connect this heart rate sensor with your Arduino or other microcontrollers. Besides, this sensor can also be compatible with Raspberry Piintel edison, joule and curie by means of 3.3V Input Voltage. 

Heart RateTest

IoT Based Heart Rate Monitoring System is a very basic project on sending the pulse rate to Blynk Application and monitoring it from anywhere.

1. This product is NOT a professional medical device and should not be used to diagnose or treat medical conditions.
2. This sensor is designed to work when the user is not moving. If used while moving it will give inaccurate results.

 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 (Vin): 3.3 - 6V (5V recommended)
  • Output Voltage: 0 - Vin (Analog), 0/ Vin (Digital)
  • Operating current: <10mA
  • Dimension: 28 x 24(mm), 1.102" x 0.945"(in)
  • Interface Type: PH2.0-3P

  • Projects

    Project 1. How to make a Heart Rate Monitor
    This project makes a Heart Beat Detection and Monitoring System using Arduino that will detect the heart beat using the Pulse Sensor and will show the readings in BPM (Beats Per Minute).
    Hardware needs:
    I/O Expansion Shield for Arduino
    Heart Rate Sensor
    ESP8266 WiFi Bee

    Project 2. How To Make A Micro:bit Heart Rate Monitor
    The following tutorial will show you how to set the micro:bit beating together with your heart using the optical heart rate sensor:
    Component List:
    micro:bit - An Educational & Creative Tool for Kids
    Gravity: Heart Rate Monitor Sensor for Arduino

    Project 3. How to Make a Running Heart Alarm T-shirt

    A DIY heart-rate wereable in a running t-shirt that vibrates when your heart-rate is high, using DFROBOT components:

    Component List:

    Arduino Nano

    vibration motor module for arduino

    beetle- the smallest arduino 

    heart rate monitor sensor arduino


    Shipping List

  • Heart Rate Monitor Sensor For Arduino x1
  • Wrist belt x1
  • PH2.0-3P cable x1




    Gravity: PPG Heart Rate Monitor Sensor for Arduino (Analog/Digital)

    In Stock
    • 5-9$15.20
    • 10-49$14.50
    • 50+$12.90