When an action is triggered (e.g button clicked) or the MCU sends a reading command (e.g. “@GUIR\r”), the clarkwise ATFC touch screen module will send a message back to the MCU through the serial port. This is called the data returned.
Similar like the commands, the returned data has a certain format:
Most controls return with only one parameter, but there are two exceptions. They are Date and Time controls. When the MCU sends the date/time reading commands, the controls return like this:
|@TIMERR\r||@98 16/32/22\r (Current time is 16:32:22)|
|@DATER\r||@99 2021/4/1\r (Current date is Apr 1, 2020)|