![]() The FIFO buffer can offload the microcontroller from reading each new data sample from the sensor, thereby saving system power. The FIFO has a 16-sample memory bank, which means it can hold up to 16 SpO2 and heart rate samples. ![]() The MAX30100 embeds a FIFO buffer for storing data samples. It has a fixed I2C address: 0xAE HEX (for write operation) and 0xAF HEX (for read operation). The module uses a simple two-wire I2C interface for communication with the microcontroller. ![]() This is a reasonably precise temperature sensor that measures the ‘die temperature’ in the range of -40˚C to +85˚C with an accuracy of ☑˚C. ![]() The MAX30100 has an on-chip temperature sensor that can be used to compensate for the changes in the environment and to calibrate the measurements. This low power consumption allows implementation in battery powered devices such as handsets, wearables or smart watches. Also it is possible to put the MAX30100 in standby mode, where it consumes only 0.7μA. One of the most important features of the MAX30100 is its low power consumption: the MAX30100 consumes less than 600μA during measurement.
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