Warning
All the actuators are not listed in this page. This page purpose is to give some examples.
A command is an action that can be done on a device, like switching it on or off, setting the dimmer value, ... The opposit of a command is a Sensor. Note that some devices can be both. Typically this is the case of a thermostat which can be controled and can send back a value (the temperature).
A command is defined in the the plugin json file, on device creation the commands devined in the plugin json file and linked to the to create device type will be inserted in the DB. A command can be executed by calling a rest url /cmd.
A command can have parameters that are required to successfully execute the command, typically the result of a widget.
In the 0.4 release a command has a one on one relationship with an xplcommand, an xplcommand is the part thats sent in the background to make a plugin do an action/command.
A command has a list of required parameters that are needed to handle it, for example to set the level on a dimmer the command needs a level to set the dimmer, this, this level parameter is a required parameter to be able to complete the command.