MAX30102/MAX30100 Heart rate Sensor Module

MAX30102/MAX30100 Heart rate Sensor Module For Puls detection And Blood oxygen concentration test 

♦MAX30100 Black

Description

The device has two LEDs,one emitting red light,The other emits infrared light. Both red and infrared light are used to measure the oxygen content in the blood.When the heart pumps blood, oxygenated blood increases as the heart relaxes due to more blood,The volume of oxygenated blood also decreases. By knowing the time between the increase and decrease of oxygenated blood.

Determine the pulse rate. It turns out that oxygenated blood absorbs more infrared light and transmits more red light.Deoxygenated blood absorbs red light and transmits more infraredlight.This is the main functional principle of the MAX30100: it reads the absorption levels of the two light sources and stores them in a buffer that can be read by I2C. However, it is not as simple as it sounds, and it involves a lot of data filtering and processing.

Absolute Maximum Ratings

• VDD to GND:-0.3V to +2.2V
• GND to PGND:-0.3V to +0.3V
• x_DRV, x_LED+ to PGND:-0.3V to +6.0V
• All Other Pins to GND:-0.3V to +6.0V
• Output Short-Circuit Current Duration:Continuous
• Continuous Input Current into Any Terminal:±20mA

The VDD operating voltage specified by the chip must be within 2.2V. At the same time,in order to balance low-power design, this module circuit design uses a 1.8V regulator to limit the VDD pin voltage to 1.8V. The SCL/SDA/INT pin is clamped at a 1.8V VDD high level via a pull-up resistor for IIC transmission between the master operating at 1.8V. Therefore, if you want to communicate with arduino UNO and other motherboards with operating voltage higher than 1.8V, you need to pull the resistors on the SCL/SDA/INT pin and the motherboard VDD indirectly to ensure the communication quality.

♦MAX30100 Green

Introduction

MAX30100 is a module integrated with pulse oximeter and heart rate monitoring sensor. The device integrates two LEDs, a photodetector, optimized optics and a low noise analog signal processor, which can detect pulse oxygen and heart rate signals. Max30100 uses 1.8V and 3.3V power supply voltage. The power can be turned off by software, and the current consumption in standby mode can be ignored.Therefore, the typical applications that can always keep the power connection are fitness auxiliary equipment, medical monitoring equipment and wearable equipment.

PIN Definition

♦Black Version MAX30102

Description

The MAX30102 is an integrated pulse oximeter and heart rate monitor biotransmission the module of the sensor. It integrates a red LED and an infrared LED, photoelectricDetectors, optical devices, and low-noise electronic circuits with ambient light suppression.The MAX30102 features a 1.8V supply and a separate 5.0V for internal LED power supply for wearable devices for heart rate and blood oxygen collection detection Wear on your fingers, earlobe, and wrist. Standard I2C compatible communication interface can Transfer the collected values to the Arduino,
KL25Z and other microcontrollers for heart rate and Blood oxygen calculation.

In addition, the chip can also shut down the module through software, standby current Nearly zero, the power supply is always maintained. Because of its excellent performance,The chip is used in a large number of Samsung Galaxy S series phones.

And previous generation productsCompared with the MAX30100, the chip integrates a glass cover to effectively eliminate the outside world.Internal light interference for optimum reliable performance.

Parameters

• LED peak wavelength: 660nm/880nm
• LED power supply voltage: 3..3~5v
• Detection signal type: light reflection signal (PPG)
• Output signal interface: I2C interface
• Communication interface voltage; 1.8V~3.3V~5V (optional)
• Board reserved assembly hole size: 0.5 x 8. 5mm

Pin Description

• VIN: main power supply input, 1.8V-5V;
• 3-bit pad:selectsthepull-up levelof the bus, dependingonthe pin master voltage, optional 1.8v or 3.3v end (this end contains 3.3V and above);
• SCL: the clock connected tothe I2C bus;
• SDA: data connected to the I2C bus;
• INT: Interrupt pin of the MAX30102 chip;
• RD: RED LED ground terminal of MAX30102 chip, generally not connected;
• IRD: The IR LED ground of the MAX30102 chip is generally not connected;
• GND: Ground wire.

♦MAX30100/30102 Heart Rate Module(Purple Double Hole)

Introduction

Pulse oximetry measures oxygen saturation in the blood stream. Because oxygen saturation can reflect early medical problems such as heart and lung problems, this reading is useful as a general health monitoring indicator.

It works based on the absorption of light by hemoglobin in the blood. Oxygenated hemoglobin absorbs more infrared light than red, while deoxygenated hemoglobin absorbs more red light than infrared. Therefore, red and infrared leds in the oximeter emit light alternately, and photodiodes receive light signals that arenot absorbed.The ratio of red to infrared light received by the photodiode is used to calculate the percentage of oxygen in the blood.Pulse rate and intensity are also determined and displayed during measurement, based on the pulsating nature of arterial blood flow.

♦Pulse HeartRate Sensor

Introduction

Pulse sensor Arduino is used to test the heart rate sensor, students, artists, athletes, creator,game developer, or mobile terminal can develop interactive work related to heart rate. Sensors can be put on the finger or earlobe, through jinterconnected line can be connected to the Arduino.It also has an open source app, can real time your heart rate graph display. Essence is a integrated optical ampilifying circuit and noise eliminating circuit heart rate sensor.

Specification

• Power supply: 3-5 v
• Magnification: 330
• LED wavelength: 609 nm