Mikroe Heart Rate 10 Click features the Maxim Integrated MAX86916 integrated optical sensor with applications in bio-sensing, proximity, and color. The module includes internal LEDs, photodetectors, and low-noise electronics with ambient-light-rejection circuitry. It establishes communication to and from the module entirely through a standard I2C compatible interface. The click operates on a 1.8V supply voltage with a possibility to be shut down through software with a near-zero standby current, allowing the power rails to remain powered at all times.