Programmable Strobe Output - FLIR GRASSHOPPER 3 Series Technical Reference

6.4

Programmable Strobe Output

The camera is capable of outputting a strobe pulse off select GPIO pins that are configured as outputs. The start of
the strobe can be offset from either the start of exposure (free-running mode) or time of incoming trigger (external
trigger mode). By default, a pin that is configured as a strobe output will output a pulse each time the camera
begins integration of an image.
The duration of the strobe can also be controlled. Setting a strobe duration value of zero produces a strobe pulse
with duration equal to the exposure (shutter) time.
Multiple GPIO pins, configured as outputs, can strobe simultaneously.
Connecting two strobe pins directly together is not supported. Instead, place a diode on each strobe pin.
The camera can also be configured to output a variable strobe pulse pattern. The strobe pattern functionality allows
users to define the frames for which the camera will output a strobe. For example, this is useful in situations
where a strobe should only fire:
Every Nth frame (e.g. odd frames from one camera and even frames from another); or
n
N frames in a row out of T (e.g. the last 3 frames in a set of 6); or
n
Specific frames within a defined period (e.g. frames 1, 5 and 7 in a set of 8)
n
Related Knowledge Base Articles
Buffering a GPIO pin strobe output signal using an optocoupler to drive external
devices
GPIO strobe signal continues after isochronous image transfer stops
2/10/2017
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FLIR Integrated Imaging
Solutions Inc. All rights reserved.
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Grasshopper 3 PGE Technical Reference
6 Input/Output Control
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Knowledge Base Article 10585
Knowledge Base Article 10078
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