Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Interface Protocol	I²C (Inter-Integrated Circuit)
Operating Voltage	3.3V to 5V DC
LED Wavelengths	660nm (Red) and 880nm (IR)
FIFO Buffer Depth	16 Samples
Max Sampling Rate	3200 Hz
Microcontroller Compatibility	STM32, Arduino, ESP32
Package Style	Breakout Module with Headers
Operating Temperature	-20°C to +70°C
Current Consumption	600uA (Typical)
PCB Dimensions	20mm x 20mm x 5mm

5 reviews

Anonymous

Mar 13, 2026

Rating: 4/5

Good hobby sensor

Data looks consistent though needs filtering. Not for medical use but great for learning embedded systems.

Anonymous

Mar 03, 2026

Rating: 5/5

Great for STM32 projects

Works perfectly with my STM32 board. I2C communication was easy to set up using standard libraries.

Anonymous

Feb 20, 2026

Rating: 4/5

Requires calibration

Good module but you need to tune the LED intensity for best results depending on skin tone.

Anonymous

Feb 17, 2026

Rating: 5/5

Solid build quality

Pins are well soldered. Library examples worked out of the box with minimal configuration.

Anonymous

Jan 31, 2026

Rating: 5/5

Fast shipping and works

Tested with Arduino Uno. Reads heart rate reliably during rest conditions.

5 FAQ

Q: Does it work with 5V logic microcontrollers?

A: Yes, the breakout module includes a voltage regulator and level shifting for 5V compatibility.

Q: Is this device medical grade certified?

A: No, this module is intended for hobby, educational, and development use only. It is not certified for medical diagnosis.

Q: Can it measure SpO2 accurately without calibration?

A: It provides raw data for estimation. Algorithm calibration is required for accurate SpO2 readings.

Q: What is the default I2C address?

A: The default I2C address is typically 0x57, but please refer to the specific datasheet for confirmation.

Q: Are there ready-made libraries available?

A: Yes, multiple open-source libraries exist for Arduino, STM32, and ESP32 platforms.

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