Page
12
of
22
Trigger Input & Outputs
Simplified Input Diagram (P2 pins 1 & 2)
Outputs – Frame Start/Stop (P2 pins 3 & 4)
Frame-start
(Pin 3) is an output trigger signal that occurs at the beginning of each
channel pulse. This signal can be used to trigger an external device, or camera.
For example: by using the
frame-start
signal, it is possible to synchronize a camera
exposure to capture each channel as they flash in a sequence. This is useful in
photometric stereo applications where the camera needs to be carefully synchronized
to capture multiple flashes
Frame Stop
(pin 4) -- Similar to
frame-start
except the stop signal begins at the end of
each light pulse. This signal can be used to determine when the last channel pulse has
ended and is useful for controlling system timing more accurately.
Internal to
controller
Internal to
controller
