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To use the demo app: On Windows, plug your VP3300-series device into the host using a
USB-to-micro-USB cable (not included), then double-click the UniversalSDKDemo.exe file
and allow a few seconds for the main window to appear (see illustration below).
The Demo App displays available commands in a command tree, as shown above.
Single-click on a command to populate the center panel of the window with optional
settings relevant to the command (e.g., "Amount" and "Start EMV Additional Tags" above).
In some cases, text fields will appear, allowing you to enter custom values. When you are
ready to execute the command in question, double-click it in the command tree. The
command executes in real time and a data trace appears automatically in the center and/or
right-hand panels. (Use the Clear Logs button to clear both panels.)