Field of View GeoSnap Basic Manual 15
GPIO Behavior
By selecting GPIO input in the Trigger Control field, a second drop down will appear called Behavior. This
dropdown allows you to specify which transitions (rising edge, falling edge) will trigger the GeoSnap. A
“
low
”
GPIO
signal is defined as 0-1.0V whereas a
“high” GPIO signal is defined as 2.3
-5V. Rising edge refers to the transition
from a low GPIO signal to a high GPIO signal, whereas falling edge refers to the transition from a high GPIO signal
to a low GPIO signal. The signal must remain at high or low status for at least 50 milliseconds for the GeoSnap to
properly interpret the GPIO signal.
Behavior
Description
If the GeoSnap is not triggering, then
a transition from a low GPIO signal to
a high GPIO signal will start
triggering. If the GeoSnap is already
triggering, then a transition from a
low GPIO signal to a high GPIO signal
will stop triggering.
If the GeoSnap is not triggering, then
a transition from a high GPIO signal
to a low GPIO signal will start
triggering. If the GeoSnap is already
triggering, then a transition from a
high GPIO signal to a low GPIO signal
will stop triggering.
The GeoSnap will trigger while the
GPIO signal remains high. As soon as
the GPIO signal goes low, the
GeoSnap will stop triggering.
The GeoSnap will trigger while the
GPIO signal remains low. As soon as
the GPIO signal goes high, the
GeoSnap will stop triggering.