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- MAX30100 heart rate sensor Measures both heart rate and blood oxygen (SpO2) levels in a single sensor.
- Fast data output enables live tracking of heart rate and oxygen saturation.
- Flexible settings through software control allow custom sampling rates and operation modes.
- Uses I2C interface, making it easy to integrate with Arduino, ESP32, Raspberry Pi, etc.
- Ultra-low power consumption makes it perfect for fitness bands and health trackers.
- Best choice for building DIY biomedical, fitness, or wearable tech solutions.
MAX30100 Pulse Oximeter Heart Rate Sensor Module
MAX30100 Pulse Oximeter is an optical sensor that derives its readings from emitting two wavelengths of light from two LEDs – a red and an infrared one – then measuring the absorbance of pulsing blood through a photodetector.
This particular LED colour combination is optimized for reading the data through the tip of one’s finger. It is fully configurable through software registers, and the digital output data is stored in a 16-deep FIFO within the device. It has an I2C digital interface to communicate with a host microcontroller.
The pulse oximetry subsystem in the MAX30100 sensor consists of ambient light cancellation (ALC), 16-bit sigma delta ADC, and a proprietary discrete-time filter. This biomedical sensor has an ultra-low-power operation, which makes it ideal for battery-operated systems.
It can be used in wearable devices, fitness assistant devices, medical monitoring devices, etc. The MAX30100 module operates from 1.8V and 3.3V power supplies and can be powered down through software with negligible standby current, permitting the power supply to remain connected at all times.
Learn how to use MAX30100 with Arduino - Click Here
Download the datasheet of this sensor
MAX30100 Sensor Module Pinout
| Pin Name | Function |
|---|---|
| VIN | Power supply pin (3.3V or 5V from Arduino) |
| SCL | I2C Clock Line – Connect to Arduino's SCL pin |
| SDA | I2C Data Line – Connect to Arduino's SDA pin |
| INT | Interrupt pin – Goes low when data is ready or on pulse detection |
| IRD | Activates IR LED for heart rate and SpO2 monitoring |
| RD | Activates Red LED – Used for SpO2 measurement |
| GND | Ground – Connect to Arduino's ground |
Features
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High signal-to-noise ratio (SNR) for improved measurement accuracy
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Measures the absorbance of pulsing blood to determine heart rate and SpO2
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Compact and fully integrated pulse oximetry and heart rate monitoring module
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Robust against motion artefacts and ambient light interference
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Operates at 3.3V – a complete pulse oximeter and heart rate sensor solution
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Integrated design with built-in LEDs, photodetector, and high-performance analogue front-end
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Optical sensor with IR and Red LEDs combined with a photodetector
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Ultra-low power consumption – ideal for wearable and battery-powered devices
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Supports high sample rate and fast data output for real-time monitoring
- I2C interface with an additional INT (interrupt) pin for efficient communication
Shipping & Returns
Shipping & Returns
- All orders confirmed before 3 pm IST are shipped on the
same day, barring rare pickup delays on holidays or disturbances - Delivery time in Metro cities is 1-3 days, Others it is
3-7 days. It varies based on location, reliant on courier services - Return window: 7 days from receipt unless stated
otherwise. No refunds/replacements after - Returns only for non-working/damaged products are accepted
- Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
- Refunds are processed within 3-4 working days post inspection and approval.
For more details, please check our Shipping and Return Policy
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Package Includes:
- 1 x MAX30100 Pulse Oximeter Heart Rate Sensor Module
Specifications:
| Working voltage |
1.8 ~ 5.5V |
| Shutdown Current |
0.7µA |
| Color |
Green |
| Dimensions(mm) |
19 x 14.5 x 3 |
| Weight (gm) |
2 |
Specifications:
1.8 ~ 5.5V
Specifications:
0.7µA
Specifications:
Green
Specifications:
19 x 14.5 x 3
Specifications:
2
1.What is a MAX30100 Pulse Oximeter Heart Rate Sensor Module?
- A MAX30100 Pulse Oximeter Heart Rate Sensor Module is a sensor that may be used to detect a person's heart rate and blood oxygen saturation (SpO2). It detects the quantity of oxygen in the blood using infrared and red light sensors and then determines the heart rate. It is small and simple to use, and it can be connected to a microcontroller such an Arduino to read and analyse data.
2.How does the MAX30100 Pulse Oximeter Heart Rate Sensor Module work?
- The sensor operates by directing infrared and red light into the blood vessels of the finger and detecting how much light is absorbed. The absorbed ratio of infrared and red light is used to compute the quantity of oxygen in the blood, known as the SpO2 level. The sensor also calculates the heart rate by analysing changes in light absorption over time.
3.What are some common applications of the MAX30100 Pulse Oximeter Heart Rate Sensor Module?
- The MAX30100 Pulse Oximeter Heart Rate Sensor Module is widely utilised in applications such as monitoring patients' heart rates and oxygen levels in hospitals and clinics, fitness and sports training, sleep monitoring, and even toys. It has a wide range of applications, including research, education, and personal use.
