EM7029，心率血氧传感器

艾普柯微：
心率传感器：EM7028 EM7029
长距离传感器：EM30918 EM30916 EM30917
三合一光感：EM30718 EM30719
  EM7029 series is a low-power I2C interface module includes Heart Rate Sensor(HRS) and internal LEDCurrent Drivers with 2 Green LED. It can work in both continuous mode and pulse mode. It is designedfor applications of Heart Beat Rate detection esp. such as smart watch etc.

Heart Rate Sensor in continuous mode is designed to monitor heart rate by optical detection.A 16-bitADC detects the result constantly with adjustable gain and resolution.

Heart Rate Sensor in pulse mode is designed to monitor heart rate by optical detection in low-power.It also  acts as a proximity sensor with rejection of ambient light noise. In order to removing 
component variations and eliminate offset caused by IR reflection,2 registers were specially definedfor compensation and high dynamic range of detection.

 HRS in continuous mode stores ADC output result into HRS1 registers, while HRS in pulse mode store ADC output result into HRS2 registers. All pixels are controlled by analog-MUX in different modes.
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