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5.) If you press and hold the Blue "User" button on the STM32F411 discovery board, you'll notice
the blue circle under the "Buttons" heading will shrink slightly. When you let go, it will grow to
its original size. Pressing the white pushbutton labeled "S1" on the Sterling-LWB expansion
board will do the same for the white circle under the "Buttons" heading. This demonstrates
monitoring a simple on/off condition from a GPIO on the STM32F411 from the web application.
6.) To view the JSON data being reported from the Sterling-LWB, click the tab labeled "JSON" in the
upper right portion of the web application. To go back to the default view, click back to the tab
labeled "DEMO".
The information in this document is subject to change without notice.
330-0234-R1.2
Copyright ©2016-2017 LSR
Sterling-LWB STM Expansion Board
USER GUIDE
Page 22 of 25
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