Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Type | MAX30102 Optical Sensor |
| Interface | I2C Communication Protocol |
| Operating Voltage | 1.8V to 3.3V DC |
| Wavelengths | Red (660nm) and Infrared (880nm) |
| FIFO Buffer | 18-Word Deep FIFO |
| Sample Rate | Configurable up to 3200Hz |
| LED Current | Programmable up to 50mA |
| Package Dimensions | 20mm x 15mm x 5mm |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
| Application | Wearable Heart Rate & SpO2 Monitoring |
Anonymous
Mar 28, 2026
Rating: 4/5
Good sensor, needs calibration
The hardware quality is solid. However, getting accurate SpO2 readings required some tweaking of the LED current and sample rate settings. Once calibrated, it performs very well.
Anonymous
Mar 27, 2026
Rating: 5/5
Great documentation support
I appreciated how easy it was to find example code online. The sensor responds quickly to changes in pulse, making it ideal for real-time monitoring applications.
Anonymous
Mar 22, 2026
Rating: 5/5
Excellent value for money
Compared to other breakout boards, this offers the best price-to-performance ratio. The soldering pads are large enough for easy connection, and the onboard regulators work great.
Anonymous
Mar 20, 2026
Rating: 4/5
Reliable for prototyping
Used this for a university project on vital signs monitoring. It held up well during continuous testing over 48 hours. Just ensure you have a stable power supply.
Anonymous
Mar 10, 2026
Rating: 5/5
Perfect for DIY Wearables
This module works flawlessly with my Arduino project. The I2C communication is stable, and the library support is excellent. I was able to get heart rate readings within minutes of setup.
Anonymous
Mar 06, 2026
Rating: 5/5
Compact and efficient
The small form factor makes it easy to integrate into wristband designs. Power consumption is low, which is crucial for battery-operated devices.
Q: Is this compatible with 5V logic microcontrollers like the standard Arduino Uno?
A: The module operates at 3.3V but includes level shifters on many breakout versions. If yours does not, you will need a logic level converter for safe 5V communication.
Q: What is the maximum distance the sensor can read from the skin?
A: The sensor requires direct contact or very close proximity (within 1-2mm) to the skin to function correctly, as it relies on light reflection.
Q: Can this sensor measure blood oxygen levels accurately without medical certification?
A: While the sensor provides SpO2 estimates suitable for hobbyist and fitness projects, it is not medically certified and should not be used for diagnostic purposes.
Q: Does this module come with a ready-to-use library for Arduino?
A: Yes, the MAX30102 is widely supported by the SparkFun MAX301x2 library available in the Arduino Library Manager, making integration straightforward.
Q: How do I reduce noise in the heart rate data?
A: Ensure the sensor fits snugly against the skin to block ambient light. Additionally, implementing a digital filter in your code, such as a moving average, can smooth out the data.
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