External LED dynamic commands
You can send dynamic commands to change the LED response of the VTAP reader, without having to save the setting in the config.txt file. Dynamic commands are sent over any Command Interface, either a virtual COM port or serial port, using a program such as TeraTerm or PuTTY or your own custom software or script.
Dynamic commands can be used for applications where you have multiple LED sequences or patterns required, in response to different types of passes or cards, or any other pass payload criteria defined in your custom software.
Dynamic commands for LED control all take the form ?<setting>.
Example: Dynamic command to make LED settings follow the LED sequence seq.abc defined in a text file called leds.ini
?LED FFFFFF:seq.abc@leds.ini
Note: A value set using a dynamic command will be used by the VTAP reader only until it reboots or refreshes. After any reboot, which could follow a power cycle, using a command.txt file or sending ?x through a serial interface, the VTAP reader will return to the settings defined in the config.txt file.