Heart Rate and SpO2 Health Monitor Kit with Arduino Nano + LED
Heart Rate & SpO2 Monitor Kit with Arduino Nano and OLED
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn your curiosity for health tech into a working pulse oximeter you can hold in your hand. This kit shows you exactly how a fingertip optical sensor reads your pulse and blood oxygen, then processes and displays those vital signs on a sharp OLED screen. By the end, you’ll have a compact, battery-powered monitor that responds to your own heartbeat.
What You'll Build
A portable device that shines infrared and red light through your fingertip using the MAX30102, extracts the PPG waveform, and converts it into real-time BPM and SpO2 percentages. The OLED shows current heart rate, oxygen saturation, and a simple status icon that turns green, yellow, or red based on wellness thresholds. The circuit fits on a breadboard and can be powered by a 9V battery so you can demonstrate it anywhere.
What You'll Learn
- Interface two I2C devices—the MAX30102 sensor and 0.96‑inch OLED—with an Arduino Nano on a shared bus
- Process raw photoplethysmogram (PPG) data using peak detection and moving average filters to calculate BPM and SpO2
- Design a real-time health status display with custom thresholds for normal, caution, and critical readings
- Calibrate an optical sensor and filter 50 Hz noise from ambient light for stable measurements
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 1 |
| MAX30102 pulse oximeter sensor | 1 |
| 0.96-inch OLED display | 1 |
| 4.7kΩ resistors | 5 |
| 100nF ceramic capacitors | 5 |
| 400-point breadboard | 1 |
| Male-to-male jumper wires | 20 |
| Male-to-female jumper wires | 15 |
| 9V battery snap connector | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
CBSE Class 11–12 students who need a working bio-sensor model for science exhibitions or practical records. First-year B.Tech ECE and BME students exploring biomedical instrumentation and signal processing on real hardware. Smart India Hackathon teams prototyping health‑tracking wearables. ATL tinkering lab mentors demonstrating I2C sensor integration and real-time data visualization.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code to open the AI companion, which walks you through wiring, code upload, and calibration. For anything else, reach us on WhatsApp and we’ll reply within hours.
Can I wear this device on my wrist like a smartwatch?
The circuit is built for fingertip measurement and sits on a breadboard, so it isn't a finished wearable. After prototyping, you can design a 3D‑printed enclosure and wear it with a strap once the sensor is placed securely against a finger.
How accurate are the heart rate and SpO2 readings?
The MAX30102 is the same sensor used in many clinical pulse oximeters. When held steady and free of motion artifacts, you can expect ±2 bpm accuracy on heart rate and ±2% on SpO2, comparable to consumer fingertip devices.
Can I log data to a computer or phone for a project report?
Yes. The Arduino Nano sends readings over USB serial. You can capture the data on a PC using the Arduino Serial Monitor or Processing, or add an HC‑05 Bluetooth module to send live readings to a mobile app.
MAX30102 reads pulse rate and blood oxygen saturation. OLED shows BPM and SpO2 percentage with status.
What's in this kit
- Arduino Nano
- MAX30102
- 0.96in OLED
- 4.7kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- M-F Wires x15
- 9V Battery Snap
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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