Rectronx Circuits
Components

MAX30102 Pulse Oximeter Sensor

Heart-rate and SpO2 sensor module for health monitoring demos.

Biomedical Sensor4.5/5RM10-RM30Intermediate
ArduinoESP32Raspberry Pi
MAX30102 Pulse Oximeter Sensor electronics module illustration

AI Ready Overview

Quick Summary

MAX30102 is a biomedical sensor commonly used in FYP and embedded projects. It is best for health monitoring demo and wearable prototype, with wiring and testing planned around Arduino, ESP32, Raspberry Pi.

Difficulty

Intermediate

Time Required

1-2 weeks for wiring, basic code, platform integration and repeated test readings

Cost

RM10-RM30 module range in Malaysia; full project cost depends on scope.

Components

MAX30102, Arduino, ESP32, Raspberry Pi

Overview

What is MAX30102?

MAX30102 uses optical sensing for pulse and SpO2-style demos. It is common in wearable health monitoring FYP projects but needs careful placement and filtering.

Engineering Reference

Quick Specs

Operating Voltage3.3V / 5V module
InterfaceI2C
DifficultyIntermediate
Typical Malaysia PriceRM10-RM30
Best ForHealth monitoring demo, Wearable prototype

Real Usage Notes

Suitable / Not Suitable

Suitable for

  • Health monitoring demo
  • Wearable prototype
  • Pulse trend measurement

Not suitable for

  • Medical diagnosis
  • Certified patient monitoring
  • Loose finger placement

Build Planning

Difficulty

MAX30102 is rated Intermediate. Plan around 1-2 weeks for wiring, basic code, platform integration and repeated test readingsdepending on wiring, libraries, calibration, dashboard/app integration and testing evidence.

Build Planning

Time Required

1-2 weeks for wiring, basic code, platform integration and repeated test readings

Malaysia Price Guidance

Cost

Typical module price range: RM10-RM30. This is component guidance only; a complete FYP cost depends on controller, sensors, casing, display, app/dashboard, documentation and timeline.

Connections

Pinout

VCC

Power input. Check whether the module expects 3.3V or 5V module before wiring.

GND

Common ground with the controller and external supply.

I2C

Main I2C connection used by the module.

IO

Additional signal pins depend on the exact module variant.

Platform Notes

Wiring Guides

MAX30102 with Arduino / ESP32

Connect power, ground and the I2C signal lines. Use level shifting when a 5V module connects to a 3.3V controller.

MAX30102 VCC3.3V
MAX30102 GNDController GND
Signal pinsI2C

Fix Common Problems

Troubleshooting

Check wiring against the pinout before debugging code.
Use a stable power supply and common ground between modules.
Test the component with a simple example sketch before adding dashboard, app or database features.

Troubleshooting

Common Mistakes

Treating readings as medical grade
Poor finger placement
No signal filtering

FYP Ideas Using MAX30102

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Student Questions

FAQ

Is MAX30102 good for FYP projects?

Yes, MAX30102 is suitable for FYP work when the project matches its limits: Health monitoring demo and Wearable prototype.

What is the most common MAX30102 mistake?

Treating readings as medical grade