Extract only part of the pass data

By default the whole pass data payload will be sent, using KBPassMode=0, but you can choose to send only part of the pass data, by setting values in config.txt.

Note: The examples in this section use the KBPass prefix on all of the parameters, to control the behaviour of mobile pass NFC data being sent as a keyboard emulation. The same parameters work in the same way with prefixes such as ComPortPass or WiegandPass to control the mobile pass data sent over those other interfaces.

To extract only a part of the data use KBPassMode=1. The following examples extract data in different ways:

Example: Changes to config.txt to extract a fixed length of data from a particular start point

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!VTAPconfig

KBPassMode=1
KBPassSeparator=|
KBPassSection=2
KBPassStart=5
KBPassLength=10

Here you specify which section separators to find, and count sections and characters from 0, to extract the right data. In this case:

Extracting data to send based on separators, sections and character counting

Example: Changes to config.txt using ContentMode 1 and two levels of data separators to extract data

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!VTAPconfig
            
KBPassMode=1
KBPassSeparator=|
KBPassSection=2
KBPassContentMode=1
KBPassContentSeparator=%
KBPassContentSection=1

In this case there are separators to identify sections and content separators within the target section:

Extracting data to send based on separators, sections, content separators and content sections

Example: Changes to config.txt to extract part of the full pass payload for Wiegand interface [VTAP100-PAC-W only]

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!VTAPconfig

WiegandMode=1           ; Enable Wiegand interface
WiegandPassMode=1       ; Choose to extract only
                        ;  a part of the pass payload
WiegandPassSeparator=|  ; Set the separator character the VTAP should
                        ;  use to separate the payload into sections
WiegandPassSection=2    ; Section number to read based on that 
                        ;  WiegandPassSeparator
PassWiegandBits=32

Extracting data to send based on a separator defining sections

Full pass payload:
3|653POAwglifBwdJq|B2000080|Andrew

Pass payload sent over the Wiegand interface:
B2000080