MCP2221 I
2
C Demonstration Board User’s Guide
DS50002480A-page 26 2016 Microchip Technology Inc.
3.3.3.1 TAB OPERATION
The Measure Temperature tab allows users to perform temperature measurements.
The “Show in Chart” check box determines if a graph is displayed during the real-time
measurements. Users can choose the measuring unit (Fahrenheit or Celsius) inside
the “Unit” radio button group.
The functionalities of the “Show Numbers” and the “Log into .CSV File...” check boxes
are similar to the ones described in Section 3.3.2 “Measure USB Power Tab”.
However, the .csv file contains two columns and each set of readings is placed on a
row. The columns are: Data entry index and Temperature.
The functionalities of the Start Measurement, Stop Measurement and Reset
Measurement buttons are similar to the ones described in Section 3.3.2 “Measure
USB Power Tab”.
Click the Measure Temperature Once button for the application to retrieve, in real
time, just one set of numeric values (for temperature) and to write them in the
corresponding text box below it. This can be used as an alternate solution to Measure
Temperature, in order to save system resources.
For example, the application can be set so that temperatures exceeding 26°C will result
in an orange LED blinking on the board. Custom LED notifications are described in
Section 3.3.8 “RGB LED Notifications Tab”.
Figure 3-7 shows an example for measuring the temperature in °C.
FIGURE 3-7: TEMPERATURE MEASUREMENT
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