{"product_id":"heart-rate-pulse-sensor-module-analog-output-arduino-raspberry-pi-compatible","title":"Heart Rate Pulse Sensor Module - Analog Output, Arduino \u0026 Raspberry Pi Compatible","description":"\u003ch1\u003eHeart Rate Pulse Sensor Module – Analog PPG Sensor for Microcontrollers\u003c\/h1\u003e\n\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V – 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eAnalog (0–3.3V\/0–5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDetection Method\u003c\/td\u003e\n\u003ctd\u003ePhotoplethysmography (PPG)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSensor Dimensions\u003c\/td\u003e\n\u003ctd\u003e16mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eIndicator LED\u003c\/td\u003e\n\u003ctd\u003eYes (beats with pulse)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003e3‑pin header (VCC, GND, Signal)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eReal‑time heartbeat monitor with OLED or LCD display\u003c\/li\u003e\n  \u003cli\u003eFitness tracker that logs BPM over time to an SD card\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-heart-rate-variability-logger\"\u003eStress level detector using heart rate variability analysis\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eIoT health dashboard uploading data to cloud via ESP32\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect 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.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery 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.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, 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.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I get stable readings?\u003c\/summary\u003e\u003cp\u003eKeep 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.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it require soldering?\u003c\/summary\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery 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.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445025137005,"sku":"CDN-0777","price":130.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_0f6972e1-1352-465c-a888-001f5b0b9d8d.jpg?v=1781512926","url":"https:\/\/compoden.com\/products\/heart-rate-pulse-sensor-module-analog-output-arduino-raspberry-pi-compatible","provider":"Compoden","version":"1.0","type":"link"}