DATAPixx Trigger Output

Configure the characteristics of a digital trigger signal to be generated from a VPixx video I/O hub.

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The digital trigger command is sent via USB to the video I/O hub and executed by the device once the instructions are received. Intended use: send a message to a third-party device. Useful to send ‘messages’ to facilitate post-processing or operate a juice pump.

Mode: Selects which types of trigger to send:

• “PositivePulse”: for a single square wave pulse voltage change from 0V to 5V, returning to 0V.

• “NegativePulse”: single square wave pulse voltage change from 5V to 0V, returning to 5V.

Digital Output: The digital output value you want to trigger. Please note that this is not the pin number, the mapping of a pin to the digital output can be found in the respective user manual.

Duration: Defines the duration of each pulse, in milliseconds. In other words, how long will it stay at 0V or 5V before returning to its initial state.

Duty Cycle: Ratio of which the signal stays in the positive or negative state.

Repetitions: Specifies how many times the trigger pulse should be repeated, typically a single repetition.

In the above screenshot, on Digital Out 0 (Pin 1), there will be a 0.5 sec (half the duration) positive trigger, bringing the value from 0 to 1 and then back to 0.