08 - VB3iS VBOX Setup Digital I/O

Brake trigger

Enabling this mode allows the Digital Input to be used with a brake trigger. Activation of the trigger will start the brake stop distance measurement, where VB3iS will calculate a Time and Distance for a Brake Trigger to 0 km/h test. 

Track marker

Enabling this mode allows the Digital Input to be used as a lap pulse. The input switch can be used to set a start/ finish line, set a separate finish line, set a split line, clear all virtual lines and perform a coldstart.

• Set a start/finish line - Press and release of the input switch. GNSS speed must be greater than 5 km/h and the virtual line will be perpendicular to the direction of travel.
• Set a separate finish line - Press and hold of the input switch for more than 5 seconds. GNSS speed must be greater than 5 km/h and the virtual line will be perpendicular to the direction of travel.
• Set a split line - Double press of the input switch. GNSS speed must be greater than 5 km/h and the virtual line will be perpendicular to the direction of travel.
• Clear all virtual lines - Short press followed by a longer press over 1.5 seconds.
• Perform a coldstart - Grounding the Digital input whilst connecting to power.

2. Digital output

Speed

The speed output is configured by changing the number of pulses per metre (90 pulses/m = 25 Hz per km/h as default).

Lap pulse

When this option is enabled, VB3iS will output a 5 V pulse for 1 second (by default) when a Start/Finish line is crossed. The duration of the pulse in seconds can be adjusted by entering a different value.

The polarity of the pulse can be changed to either a rising or falling pulse by selecting the marker next to the desired image.