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DFRobot
Gravity: Arduino Heart Rate Monitor Sensor (ECG)
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The DFRobot Gravity Heart Rate Monitor Sensor measures the electrical activity of the heart and outputs it as an analog signal. Built around the AD8232 chip,...
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The DFRobot Gravity Heart Rate Monitor Sensor measures the electrical activity of the heart and outputs it as an analog signal. Built around the AD8232 chip, it filters and amplifies the ECG signal to produce a clean waveform from the PR and QT intervals — viewable in real time using the Arduino IDE's Serial Plotter.
The Gravity interface allows plug-and-play connection with compatible Arduino boards and shields. Operating at 3.3–5V, it's also compatible with Raspberry Pi and other 3.3V microcontrollers.
Key Features
- AD8232 Signal Conditioning – Filters noise to produce a clean ECG waveform
- Analog Output – 0–3.3V output for direct ADC reading
- Gravity Interface – PH2.0-3P connector for plug-and-play use
- Wide Voltage Support – 3.3–6V input (5V recommended)
- Low Power – Less than 10mA operating current
- Compact Size – 35 × 22mm
Specifications
- Input Voltage – 3.3–6V (5V recommended)
- Output Voltage – 0–3.3V
- Interface – Analog (PH2.0-3P)
- Operating Current – <10mA
- Dimensions – 35 × 22mm
Ideal For
- Learning about ECG signals and heart rate monitoring
- Biometric and health-related maker projects
- Arduino and Raspberry Pi sensor experiments
- Data visualisation with the Arduino Serial Plotter
Package Contents
- 1× Heart Rate Monitor Sensor
- 1× Sensor cable with electrode pad connector (3-pin)
- 6× Biomedical sensor pads
- 1× PH2.0-3P cable
Warning: This product is NOT a medical device and is not intended to be used as such or as an accessory to such, nor to diagnose or treat any conditions.
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- IDE
- Short for Integrated Development Environment, a program used to write, run and manage code. It matters because some learners prefer a traditional coding workspace instead of a guided notebook-style lesson.
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Supplier page — dfrobot.com
Supplier Description · 1.3 MB · Click any page to view full size
SEN0213 gravity analog heart rate monitor sensor schematics V1.0
Schematic · 56.1 KB · Click any page to view full size
SEN0213 gravity analog heart rate monitor sensor datasheet V1.0
Datasheet · 645.2 KB · Click any page to view full size
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