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Finger Heartbeat Detection Sensor Module (KY-039)

SKU: SSXRMXDMDI
★★★★ ★ ★
4.3 (32 reviews)
The Finger Heartbeat Detection Sensor Module is a compact biosensing module designed to measure heartbeats by detecting changes in blood volume within a finger using an infrared LED and photodetector. Based on the principle of photoplethysmography (PPG), the sensor monitors variations in blood flow caused by heart contractions and generates corresponding pulse signals. The module features onboard signal conditioning circuitry...
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The Finger Heartbeat Detection Sensor Module is a compact biosensing module designed to measure heartbeats by detecting changes in blood volume within a finger using an infrared LED and photodetector. Based on the principle of photoplethysmography (PPG), the sensor monitors variations in blood flow caused by heart contractions and generates corresponding pulse signals.

The module features onboard signal conditioning circuitry and provides both analog and digital outputs, making it easy to interface with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontroller platforms. An onboard LED indicator flashes in sync with detected heartbeats, providing visual feedback during operation.

This sensor is widely used in health monitoring projects, fitness devices, biomedical experiments, wearable electronics, and educational electronics applications.

Key Features

  • Detects human heartbeat through fingertip measurement
  • Based on photoplethysmography (PPG) technology
  • Infrared LED and photodetector sensing system
  • Analog and digital signal outputs
  • Onboard heartbeat indication LED
  • Adjustable sensitivity via onboard potentiometer
  • Fast response and stable performance
  • Easy interfacing with microcontrollers
  • Low power consumption
  • Compact PCB design
  • Real-time pulse detection
  • Suitable for educational and biomedical projects
  • Compatible with Arduino, ESP32, STM32, and Raspberry Pi
  • Simple plug-and-play operation

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: Heartbeat Detection Sensor Module
Detection Principle: Photoplethysmography (PPG)
Sensor Components: Infrared LED and Photodetector
Operating Voltage: 3.3V to 5V DC
Operating Current: Typically Less Than 20mA
Output Type: Analog Output (AO) and Digital Output (DO)
Sensitivity Adjustment: Onboard Potentiometer
Indicator LEDs: Power LED and Pulse Detection LED
Signal Processing: Onboard Amplification and Filtering
Interface Pins: VCC, GND, AO, DO
Detection Method: Fingertip Blood Flow Monitoring
Response Time: Real-Time Detection
Operating Temperature: -20°C to +70°C
Storage Temperature: -40°C to +85°C
PCB Dimensions: Approximately 32mm × 14mm
Mounting Type: Through-Hole Module
Compatibility: Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC

Additional Resources

Heartbeat Sensor.PDF

FAQ

1. What is the Finger Heartbeat Detection Sensor Module used for?

The module is used to detect and monitor heartbeats by measuring blood flow changes in a fingertip using infrared sensing technology.

2. How does the heartbeat sensor work?

It uses an infrared LED and photodetector to detect small variations in blood volume caused by each heartbeat, generating a corresponding pulse signal.

3. Can the sensor be used with Arduino and ESP32 boards?

Yes, the module is fully compatible with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontrollers.

4. What outputs are available on the module?

The module provides both analog and digital outputs, allowing users to monitor raw pulse signals or detect heartbeat events directly.

5. Why does the onboard LED blink during operation?

The onboard LED flashes in sync with detected heartbeats, providing a visual indication that the sensor is successfully detecting pulse activity.

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