Contents
How does MAX30100 work?
It turns out, oxygenated blood absorbs more infrared light and passes more red light while deoxygenated blood absorbs red light and passes more infrared light. This is the main function of the MAX30100: it reads the absorption levels for both light sources and stored them in a buffer that can be read via I2C.
How does the MAX30102 work?
MAX30102– how does it work? The MAX30102 uses a method called photoplethysmography to measure the heart rate of someone. This method shines light on the skin and the perfusion of the blood is measured.
What is MAX30102 sensor?
The MAX30102 is an integrated pulse oximetry and heart-rate monitor biosensor module. It includes internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient light rejection. The MAX30102 provides a complete system solution to ease the design-in process for mobile and wearable devices.
Which sensor is used in pulse oximeter?
All pulse oximeters use red and infrared light to measure SpO2 levels. Nonin PureLight sensor technology uses high-quality LEDs and a calibrated receptor to eliminate interference from secondary frequencies.
What is output of MAX30100?
The MAX30100 is an integrated pulse oximetry and heart-rate monitor sensor solution. It combines two LEDs, a photodetector, optimized optics, and low-noise analog signal processing to detect pulse oximetry and heart-rate signals.
What is MAX30205?
MAX30205 is an accurate temperature sensor with alarm/shutdown/interrupt output.It has a high-resolution sigma-delta ADC (Analog-to-Digital Converter) that converts the temperature data to digital form. It has an operating temperature range of 0-50°C.
What is a pulse oximeter sensor?
Pulse oximetry is a ubiquitous non-invasive medical sensing method for measuring pulse rate and arterial blood oxygenation. The organic sensor accurately measures pulse rate and oxygenation with errors of 1% and 2%, respectively.
What does the max30102 heart rate sensor do?
The MAX30102 is a complete pulse oximetry and heart-rate sensor system solution module designed for the demanding requirements of wearable devices. The device maintains a very small solution size without sacrificing optical or electrical performance.
How are pulse oximeter max30100 and max30102 connected?
Schematic diagram of MAX30100 / MAX30102 Now take a closer look at the pull-up resistors 4.7k for SCL, SDA and INT signal lines (a thick red line). They are connected to the supply + 1.8V!!! If such a module is connected to a 5V logic of Arduino board – it will not be visible on the I2C bus because the logic levels are too low.
What kind of power supply does the max30102 have?
It includes internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient light rejection. The MAX30102 provides a complete system solution to ease the design-in process for mobile and wearable devices. The MAX30102 operates on a single 1.8V power supply and a separate 3.3V power supply for the internal LEDs.
Which is part of the max30102 evaluation kit?
The MAX30102 evaluation kit (EV kit) provides a proven design to evaluate the MAX30102 integrated pulse-oximetry and heart-rate monitor integrated circuit (IC). The EV kit consist of two boards. USBOSMB is the mother board and MAX30102DBEVKIT is the daughter board that includes the MAX30102 and an accelerometer.