NVITE | installation guide
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4.4.3 QR-code
The barcode scanner can be used to read QR-codes or barcodes from a smartphone display or printed paper.
Default settings are good when the QR-codes contain text with a hexadecimal number. See advanced settings below for
details about using custom text barcodes.
Enable
Enable or disable the barcode scanner.
Aiming beam / illuminator
Enable the aiming beam. This may be useful when reading paper barcodes.
Enable the illuminator. Useful when reading paper barcodes during darkness.
Check prefix / suffix
The prefix and/or suffix may be used to only read tag that contain specific leading or trailing text characters or to find
the id-number within a longer text string. The prefix/suffix characters will be removed from the output. Also the
prefix/suffix do not have to be at the start or end of the barcode.
Example barcode "<name=Hans><id=00123><country=NL>".
Set the prefix to "<id=" and the suffix to ">".
This will result in the barcode ID-number 00123.
Fixed offset / data length
The offset and data length settings are useful to read only a substring of a longer barcode text.
Offset value 1 means to skip the first character of the barcode string.
Example barcode "123456789".
When fixed offset = 0 and fixed data length = 5 then the output would be 12345.
When fixed offset = 2 and fixed data length = 5 then the output would be 34567.
You can use the Check prefix or the fixed offset, but not both options simultaneously.
You can use the Check suffix or the fixed data length, but not both options simultaneously.
String format
Default string format is "hex-string".
Select "decimal string" when using barcodes that contain decimal numbers only. This will convert the number from
decimal to hex. This might be especially useful when sending this number on the Wiegand output.
Select "Text string" when the barcode contains a text string with alphanumeric characters.
Text strings can only be sent on the serial output (not on Wiegand or Magstripe as these support only numeric values).
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