Silicon Laboratories Biometric-EXP EVB User Manual page 7

Biometric-EXP EVB
3.3. SpO2 Monitor Mode
When SpO2 mode is active, the LCD will show "SpO2" followed by a message instructing the user to place his/her
finger on the optical sensor. Beyond that, SpO2 monitor mode mirrors the operation of the Heart Rate Monitor
mode as described in Section "3.2. Heart Rate Monitor Mode" . Please note that SpO2 mode is not available when
using Si1143-M01-PS or Si1147-M01-PS devices via the 6-pin ribbon cable. Even more so than HRM, proper
finger position and pressure is important to achieve a good SpO2 measurement. Refer to Figure 6 for an illustration
of proper finger position.
3.4. Ultraviolet Sensor Mode
When the UV sensor mode is active, the LCD will show "UV" followed by the measured UV index. In this mode, the
UV reading is updated every two seconds.
3.5. Temperature Sensor Mode
In the temperature sensor modes, the LCD will show the temperature in Fahrenheit or Celsius as indicated by an
"F" or a "C" following the reading. In this mode the temperature reading is updated every two seconds.
3.6. Relative Humidity Sensor Mode
In the relative humidity sensor mode, the LCD will show "RH" followed by the relative humidity reading. In this
modem, the relative humidity reading is updated every two seconds.
Rev. 0.4 7