4.4-Serial Input

The Serial Input event specifies the action that occurs when the BrightSign player receives input from a device connected to a serial port.

• Specify port: Enter the port number of the input device. Most standard RS-232 serial devices enumerate on port 0. If you are connecting a USB-serial device, it will enumerate on port 2. To configure the serial port, navigate to File > Presentation Properties > Interactive.
• Specify serial input: Enter the serial input string that will trigger the event. You can also use the <*> wildcard to match some or all of the serial input (i.e. entering "<*>" in this field will match any input, while entering "mycommand_<*>" will match any input message that begins with "mycommand_").

Modifying User Variables

You can use the Serial Input event to modify the values of User Variables. To enable these options, click the Advanced tab:

• Assign input to variable?: Check this box to assign the content of the serial input to a User Variable.
  • Input specifies variable: The serial input string will dynamically specify which User Variable to modify. The serial input string must be sent in the form of <variable name> : <variable value>.
  • Specify fixed variable: The serial input string will modify a fixed User Variable. Use the dropdown list to choose which User Variable the serial input will modify. The serial input string must be sent in the form of <variable value>.

• Assign wildcard to variable?: Check this box to specify the value of a User Variable using the <*> wildcard. Select the User Variable to modify using the dropdown menu to the right. The Specify serial input field must contain the <any> wildcard, either by itself or with additional text (e.g. "message_<any>").