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falling-edge

Syntax​

Shorthand syntax

- falling-edge

Extended syntax

- falling-edge:
    min-dwell: value
    max-dwell: value

Description​

The falling-edge operation does not take any parameters. It watches a digital input and emits an event pulse each time the input transitions from high to low.

The optional parameters min-dwell and max-dwell can be specified to recognize edge transitions that follow a previous transition within the given window. For example, setting a max-dwell of 1 will recognize a falling-edge transition that's part of a spike in the signal of at most 1s duration.

Examples​

  var1:
    - source: AIN0
    - threshold: 2.5
    - falling-edge
info

In the above example, AIN0 is an identifier available in LabJack data sources.