The Heart Beat Pulse Sensor Module detects heartbeats by shining an LED (light-emitting diode) onto the fingertip and reading light reflection changes with a photodetector (a light-sensitive component). Each heartbeat changes blood volume under the skin, which changes how much light reflects back — this is called PPG (photoplethysmography). The pulse sensor outputs an analog voltage waveform that peaks with every beat, and runs on 3.3V to 5V. Its 15mm circular PCB diameter fits over a fingertip naturally.
The heartbeat sensor price sits low because the design is simple — but that simplicity has a trade-off. The analog output is sensitive to motion. Any finger movement during reading creates noise that looks like a false heartbeat. The sensor works well when the finger stays still. A software filter or moving average smooths most of this in code.
The heartbeat sensor module works with Arduino IDE using the PulseSensor Playground library, which handles BPM calculation automatically. Engineer building health monitors, and makers testing wearables all use it. Connect S pin to an analog input, power from 3.3V, and open serial plotter in Arduino IDE to see the waveform live. StemVolt provide this module with fast dispatch across India.
Related Products:
Check out the AD8232 ECG Sensor Module
Features:
- Heart Beat Pulse Sensor Module detects fingertip blood volume pulse changes
- Compact 15mm circular PCB fits fingertip clip and wearable housings
- Analog output maps directly to Arduino 10-bit analogRead BPM detection
- PulseSensor.com library handles threshold BPM and beat detection automatically
- 3.3V to 5V supply compatible with Arduino ESP32 and STM32 boards
Technical specifications:
 Applications:
- Heart Beat Pulse Sensor used for Arduino wearable BPM finger monitor
- Fitness band uses pulse sensor for continuous heart rate zone tracking
- Smart India Hackathon health build uses heart sensor for BPM alert
- Lab demo uses heartbeat sensor arduino for PulseSensor library BPM project
Package includes:
- 1 x Heart Beat Pulse Sensor Module
Rahul Partani –
Original product received
Abhishek Toshniwal –
Quick delivery service
Pooja Baheti –
Bubble wrap packing done well
Kriti Kalantri –
Best purchase ever
Vineet Sarda –
Heart beat pulse sensor module provides reliable pulse detection and is ideal for STEM projects, health monitoring experiments, and arduino-based learning applications.