Heart Rate Pulse Sensor Module

Heart Rate Pulse Sensor Module is an optical pulse detection device designed for measuring heart rate through fingertip or earlobe contact. Featuring a built-in photoplethysmographic sensor, it offers high sensitivity and real-time data output, making it ideal for wearable devices, health monitoring systems, and biofeedback projects.

Key Features:

• Optical Pulse Measurement: Uses LED and photodetector to capture blood flow changes with each heartbeat.
• Analog Output Signal: Provides clean analog waveform for microcontroller processing.
• Ready-to-Use Design: Integrated sensor on PCB with 3-pin header for quick prototyping.
• Wide Compatibility: Works with Arduino, ESP, Raspberry Pi, and other microcontroller platforms.
• Comfortable Use: Suitable for fingertip, wrist strap, or earlobe placement.

Technical Specifications:

• Operating Voltage: 3.3V to 5V DC
• Output Type: Analog signal (voltage variation proportional to pulse)
• Detection Method: Optical—infrared LED and photodetector
• Sampling Rate: Suitable for real-time heart rate tracking
• Cable: Includes 3-wire jumper cable for easy connection

Mechanical Specifications:

• PCB Shape: Round with heart-shaped sensing area
• Connector: 3-pin male header
• Build Material: FR4 PCB with solder mask

Dimensions:

• PCB Diameter: Approx. 25 mm
• Mounting Holes: 3 × M2 holes for panel or enclosure mounting

Pinout and Wiring:

• VCC: 3.3V to 5V power supply
• GND: Ground connection
• SIG: Analog pulse signal output to microcontroller
• Wiring Tip: Use with an op-amp or ADC input for accurate readings

Datasheet Reference:

•  “Pulse Sensor Amped datasheet”

Applications:

• Fitness Tracking: Measure heart rate during exercise or daily activity.
• Wearable Devices: Integration into smartwatches and fitness bands.
• Biomedical Projects: Research and prototype medical-grade heart monitoring systems.
• Educational Tools: Demonstrate biological signal measurement in classrooms.

Equivalent Models:

• Pulse Sensor Amped: Widely used open-source optical heart rate sensor.
• KY-039 Module: Optical finger heartbeat sensor with digital output.
• MAX30102 Sensor Module: Advanced pulse oximeter and heart rate sensor with I2C output.

Package Includes:

• 1 × Heart Rate Pulse Sensor Module
• 1 × 3-Wire Jumper Cable