SI7013EVB-UDP-M3L1 Datasheet, PDF (21/26 Pages) Silicon Laboratories – Si7013EVB-UDP-M3L1 Users Guide

Si7013EVB-UDP-M3L1
To wake up the Data Logger firmware, press down on the center of the joystick button (U9). The buttons, S1-S3, do
not work unless the firmware is awake. If no button is pressed within 15 seconds, the firmware goes back to sleep.
S1 changes the information that is displayed on the LCD. The LCD rotates through the following displays:
Temperature and Humidity
Date
Time
Sample Count
If there is an alarm, the Data Logger firmware displays a flashing alarm message on the LCD. The alarm message
can be dismissed by pressing S1. This allows the normal displays to be seen (until the next alarm occurs).
S2 toggles the displayed temperature between Celsius and Fahrenheit.
S3 starts and stops logging. If logging is disabled, pressing S3 enables logging. If logging is enabled, pressing S3
disables logging. If logging is enabled, samples are stored in the log.
The Data Logger firmware blinks DS8 when a sample is taken. This allows you to verify that samples are being
taken at the expected rate.
If the Data Logger application is not connected to the MCU card, then DS8 is off (except for occasional blinks). If
the Data Logger application is connected to the MCU card, then DS8 is on (except for occasional blinks). This
allows you to verify that the Data Logger application is successfully communicating with the Data Logger firmware.
4.7.2.2.2. LCD Displays
There are five LCD displays for temperature and humidity, date, time, sample count, and alarm. The LCD is blank
while the Data Logger is sleeping. To see information on the LCD, press down on the center of the joystick button.
4.7.2.2.2.1. Temperature and Humidity Display
This display shows the temperature and humidity from the most recent sample.
Figure 22. Temperature and Humidity Display
You can press the S2 button to switch the temperature between Celsius and Fahrenheit.
4.7.2.2.2.2. Date Display
This display show the current date.
Figure 23. Date Display
The date is formatted as month/day-of-month/year.
Rev. 0.2
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