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MAX30102 Pulse Oximeter Heart Rate Sensor Module
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Note: This module operates at a 1.8V logic level. Please use a level shifter to get 3.3V or 5V logic levels for your Arduino and ESP boards.
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The MAX30102 Pulse Oximeter Heart Rate Sensor Module is a compact optical sensing solution for measuring pulse-related signals and developing heart-rate and SpO2 monitoring projects. It combines red and infrared LEDs, a photodetector, ambient-light rejection and low-noise signal-processing circuitry in a small sensor package.
The module communicates with a microcontroller through an I2C-compatible interface, making it suitable for Arduino, ESP32 and other embedded development projects when the required logic-level interfacing is provided.
The sensor uses changes in reflected red and infrared light to detect variations caused by pulsating blood flow. Its programmable LED current and sample settings help developers balance measurement performance and power consumption, while the FIFO data buffer supports efficient data collection. The integrated ambient-light cancellation and high signal-to-noise performance can help improve readings in practical wearable and fitness applications.
The MAX30102 is well suited for DIY electronics, wearable prototypes, fitness-monitoring projects, biometric experiments and educational embedded-system projects. It is a sensor component for development and prototyping, not a medical diagnostic device.
read our blog on eye blinking sensor, which provides information about the working principle of an eye blink sensing system.
Note: For this sensor, you have to pull up SCL & SDA Pin( You have to connect a 10Kohm resistor between SCL & 5V And Same as SDA to 5V)
| Voltage | 1.8 - 3.3v |
| Current | 0.7 µA |
| Length | 5.6m |
| Width | 2.8mm |
| Height | 1.2mm |
| Weight | 2gm |
The MAX30102 is an optical sensor module designed for pulse and heart-rate monitoring and SpO2-related development projects. It integrates red and infrared LEDs, a photodetector, ambient-light cancellation and signal-processing circuitry. Its I2C-compatible interface allows it to communicate with microcontrollers for wearable, fitness, biometric and educational electronics projects.
The MAX30102 emits red and infrared light toward the skin and detects changes in the reflected light using its photodetector. Blood flow changes with each heartbeat, producing variations in the optical signal. A microcontroller can process these readings to calculate pulse-related measurements and develop SpO2 monitoring applications.
Yes, the MAX30102 can be used with Arduino, ESP32 and other microcontroller platforms through its I2C interface. However, the electrical levels of the specific module must be checked before connection. If the controller uses a different logic voltage, an appropriate level shifter may be required to protect the sensor and ensure reliable communication.
The MAX30102 uses a standard I2C-compatible digital interface for communication with a host microcontroller. It also provides an interrupt pin that can be used by the host system for sensor events and data handling. This makes the module suitable for compact embedded and wearable electronics projects.
The MAX30102 can be used for DIY pulse-monitoring projects, wearable prototypes, fitness electronics, biometric experiments, IoT health-monitoring concepts and educational embedded-system projects. It is particularly useful when a project needs optical pulse sensing in a small, low-power form factor.
The MAX30102 is a sensor component intended for product development, research, education and prototyping. A project built with this module should not be presented as a medical diagnostic device unless the complete system has been appropriately designed, validated and certified for that purpose.
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Everything about this order was professional. From the easy website interface to the secure packaging and fast delivery, I am very happy. The item quality is superior, and the technical support team was quick to assist me with a setup question.
I am very impressed with the fast delivery and the packaging was excellent. The product quality is top-notch and it functions perfectly for my project. The technical support team was also very helpful when I had a quick question about installation.
The website experience was smooth, making it easy to find what I needed. The product arrived on time, securely packed, and works exactly as described. I am really satisfied with the build quality and the support I received from this shop.
This was a seamless purchase experience. The website is intuitive, and delivery was prompt. The product was packed with care to ensure no damage. I am very happy with the quality and the helpfulness of the support team during my project.
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It is Amazing and great item in this price
Veri usefull and cheap price from other shopping site, I use this module many project. Thank you robocraze
Excellent breakout board with added 5.1k resister for PD power trigger. Normal 4pin breakout board cannot draw power from PD but this one can.
Very nice and perfect
Good quality & working as expected. Delivered on time.
Excellent breakout board with added 5.1k resister for PD power trigger. Normal 4pin breakout board cannot draw power from PD but this one can.
Good quality & working as expected. Delivered on time.
It's good and excellent at its price range ad works correctly. But the thing confusing in this is that the pins markings I got confused which pin is shutdown and which pin is gpio... It's just written x and e . Soo it's kinda confusing but it a good product from what I have tested
It's works perfectly and I good overall in my opinion
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