BASIC CONFIGURATION GUIDE
PAGE 13
3.4 Control LED and buzzer feedback
The VTAP100 has two diagnostic LEDs, red and green, which provide a heartbeat on the
board, for factory use only. There are also status LEDs, on the reverse side of the board,
which can provide feedback to end users, through a window in the case. These can show any
hex RGB colour. And there is also a buzzer. You control how these LEDs and buzzer react to
mobile passes by setting parameters including
LED
in the
config.txt
file.
Example: Control of LED and buzzer in default
config.txt
!VTAPconfig
LEDMode=0
LEDSelect=1
LEDDefaultRGB=1EEBCF
PassLED=00FF00,200,200,3
PassBeep=100,100,2
TagLED=00FF00,200
TagBeep=100
This example includes
LEDMode=0
to turn off the diagnostic LEDs except during NFC activity.
Use
LEDMode=3
to disable them completely.
LEDSelect=1
is to make use of the pair of LEDs that are visible through a compact case (CC)
for user feedback, but you could use
LEDSelect=2
to use the LED that is visible through a
square case (SQ) instead.
LEDDefaultRGB=1EEBCF
sets the colour that the feedback LED(s)
show constantly, but can be set
=0
if you would rather LEDs were off when a pass is not
being read.
PassLED
chooses the hex colour for the LEDs to flash when there is a mobile pass read, along
with the flash on time, interval and number of repeats, the example chooses three 200ms
flashes with 200ms intervals in between.
TagLED
sets the LED response to a card/tag read in
the same way. In the example the response to a card/tag is set to be the same colour, but a
single 200ms flash (interval and number of repeats can be omitted if not needed).
PassBeep
sets an on time, interval, and a number of repeats for the buzzer when there is a
mobile pass read. In this example there will be a double beep for a pass read.
TagBeep
sets
the buzzer response to a card/tag read in the same way. The example sets a single beep
response to a card/tag read. (Again you can omit the interval and number of repeats for a
single beep of the specified duration).
