{"product_id":"max3010030102-heart-rate-spo2-sensor-module-compoden","title":"MAX30100\/30102 Heart Rate \u0026 SpO2 Sensor Module | Compoden","description":"\u003ch1\u003eMAX30100\/30102 Heart Rate Oxygen Pulse Sensor\u003c\/h1\u003e\n\u003cp\u003eThe MAX30100 and MAX30102 are integrated pulse oximetry and heart-rate monitor modules. Each combines two LEDs (red and infrared), a photodetector, and low-noise analog signal processing on a single chip. You can measure both heart rate (bpm) and blood oxygen saturation (SpO2) through I2C communication, making it suitable for wearable health devices and educational biometrics projects.\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\u003eSensor IC\u003c\/td\u003e\n\u003ctd\u003eMAX30100 or MAX30102\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMeasurement\u003c\/td\u003e\n\u003ctd\u003eHeart rate (bpm) and SpO2 (%)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eI2C, default address 0x57\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003eVDD: 1.8V, VLED: 3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLED Wavelengths\u003c\/td\u003e\n\u003ctd\u003e660nm (red), 880nm (IR)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eStandby Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 600 µA\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\u003eDIY smart watch for continuous health monitoring\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/esp32-pulse-oximeter-kit\"\u003ePortable pulse oximeter with an OLED display\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eIoT patient monitoring system using ESP32 and cloud dashboards\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-fitness-heart-rate-monitor-kit\"\u003eFitness tracker logging SpO2 and heart rate to an SD card\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe sensor communicates over I2C and works with 3.3V logic controllers such as ESP32, Raspberry Pi Pico, and most STM32 boards. For 5V boards like Arduino Uno, add a bidirectional logic-level shifter on SDA and SCL lines. It pairs well with small OLED screens and 3.3V LDO regulators for compact wearable builds.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eSupply 1.8V to the VDD pin and 3.3V to the VLED pin. Do not power both from the same 3.3V rail, as the internal LED driver expects separate voltage domains. Use 4.7kΩ pull-up resistors on SDA and SCL, tied to 1.8V. Place a 10µF bypass capacitor close to the sensor for stable readings.\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 Uno?\u003c\/summary\u003e\u003cp\u003eYes, but the MAX30100’s I2C bus operates at 1.8V logic. Use a logic-level converter (e.g., BSS138-based) on SDA and SCL lines when connecting to a 5V Uno. Many breakout boards include on-board level shifters, so check your specific module.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this sensor require external LEDs?\u003c\/summary\u003e\u003cp\u003eNo. The MAX30100 and MAX30102 have integrated red and infrared LEDs inside the package. Just connect power and I2C; no external light sources are needed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I power it directly from a 3.3V supply?\u003c\/summary\u003e\u003cp\u003eYou must not supply 3.3V to the VDD pin, which requires a regulated 1.8V. The LED driver (VLED) can take 3.3V. Use a small low-dropout regulator to derive 1.8V from a battery or 3.3V rail.\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":53445103223149,"sku":"CDN-0349","price":110.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_87c5e348-d95a-42fa-b0c8-4d5e6d245994.jpg?v=1781513319","url":"https:\/\/compoden.com\/products\/max3010030102-heart-rate-spo2-sensor-module-compoden","provider":"Compoden","version":"1.0","type":"link"}