Question 10. (15 points) Now, based on project's description, use software engineering methods to give the design points of this system.

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. The MAX30102 IC lies at the center of the module. The module consists of two different type LEDs (Red and IR) and a photodetector. Blood oxygen saturation and heart rate are found using these two key features. For communicating with microcontrollers, the sensor uses the I2C pins SCL and SDA. Another feature of this sensor is that it uses a 32 sample FIFO buffer to store data as compared to MAX30100 which has only 16 sample FIFO buffer. In other words, it further reduces power consumption as it already holds a maximum of thirty-two heart rate and SPO2 values. The MAX30102 can also be used with interrupts which can be enabled for several sources such as power ready, new data ready, ambient light cancellation, temperature ready and FIFO almost full. With the generation of interrupts, the microcontroller can perform other events which do not happen during the sequential execution of a program while the sensor keeps obtaining new data samples.

MAX30102 Photodetector