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State module type

The State module can handles a sensor (Button board for example), or an actuator (Power Switch board for example). Generally, this type of modules allows to manage bi-state elements such as on/off, pushed/release, 0/1, ...

Its type has access to all common capabilities.


Function name and parametersActionComment
control(self)Displays module type graphical interfaceOnly available using Jupyter notebook


Variable nameActionType
stateSets or reads the module stateread / write: Boolean (True or False)


Event nameTrigger
changedAny state modification falling or raising
fallingState modification from True to False
risingState modification from False to True

ROS topics

Topic nameMessage type

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