Heart Rate Pulse Sensor Module - Analog Output, Arduino & Raspberry Pi Compatible
Heart Rate Pulse Sensor Module – Analog PPG Sensor for Microcontrollers
This heart rate pulse sensor module uses photoplethysmography (PPG) to detect blood volume changes in your fingertip or earlobe, outputting an analog signal proportional to your heartbeat. Ideal for DIY health monitoring projects, it works with popular development boards like Arduino, Raspberry Pi, and ESP32. The module includes built‑in filtering and amplification, so you get clean, usable data with minimal external components.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage | 3.3V – 5V DC |
| Output Type | Analog (0–3.3V/0–5V) |
| Detection Method | Photoplethysmography (PPG) |
| Sensor Dimensions | 16mm diameter |
| Indicator LED | Yes (beats with pulse) |
| Connector Type | 3‑pin header (VCC, GND, Signal) |
What You Can Build With This
- Real‑time heartbeat monitor with OLED or LCD display
- Fitness tracker that logs BPM over time to an SD card
- Stress level detector using heart rate variability analysis
- IoT health dashboard uploading data to cloud via ESP32
Compatibility
This module outputs an analog voltage, making it compatible with any board that has an analog input pin. It works directly with Arduino Uno, Mega, Nano, and Pro Mini (5V or 3.3V logic). It can also be used with Raspberry Pi via an external ADC (e.g., MCP3008) and with 3.3V boards like ESP8266 or ESP32 without level shifting. Common pairings include adding an OLED (SSD1306) for display or a Bluetooth module (HC‑05) for wireless monitoring.
Wiring Notes
Connect the sensor’s VCC pin to 3.3V or 5V on your microcontroller, GND to ground, and the Signal pin to any analog input (e.g., A0 on Arduino). No external pull‑up resistors are needed—the module includes built‑in amplification and filtering. For stable readings, place your fingertip gently over the sensor with consistent pressure and avoid ambient light interference. A simple moving average filter in code will smooth out any remaining noise.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, the heart rate pulse sensor module works out of the box with any Arduino board having an analog input (Uno, Nano, Mega, etc.). Connect Signal to A0 and use 3.3V or 5V power—the sensor automatically adjusts.
How do I get stable readings?
Keep your finger steady and avoid pressing too hard. Shield the sensor from direct ambient light, and apply a 10‑sample moving average in your code to smooth readings.
Does it require soldering?
The module usually ships with a 3‑pin male header strip that you may need to solder onto the sensor board. Once soldered, it plugs directly into a breadboard or jumper wires.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items