Caution

This is the documentation for the current development branch of the CometVisu. It is possible that some of the described features are not yet available in the current release.

Also there might be lots of errors in this documentation as some parts of the content have been translated by an online translation service.

The dimmer widget

Author: Tobias Bräutigam
Available since: 2022

Description

The dimmer widget combines a switch with the ability to set a brightness value. A Button is used for the switch and a vertical Slider for the brightness value.

<cv-dimmer>
    <cv-address slot="switchAddress" transform="DPT:1.001">1/4/0</cv-address>
    <cv-address slot="brightnessAddress" transform="DPT:5.001">1/4/1</cv-address>
    <span slot="primaryLabel">Dimmer</span>
    <span slot="secondaryLabel">Living room</span>
</cv-dimmer>

Allowed attributes in the dimmer element

Element	Attribute
	Name	Content	Description
cv-dimmer	mapping	string	Map the bus value to a different value, text or symbol for displaying. See also mapping
	styling	string	Change the color of the displayed value depending on its value. See also styling
	size	button, 0.5x0.5, 1x0.5, 1x1, 2x1, 2x1.5, 1x2, 2x2, 2x4 or 4x2	Size of the tile in {columns}x{rows}, 1x1 is the default size.
	throttle-interval	decimal	Defines the interval (in milliseconds) used for sending changes to the backend.
	visible-on	mobile or desktop	Controls this element’s visibility by screen size.
	class	string	Add this value to the CSS class so that it can be formatted by a user provided style sheet.
	style	string	Custom CSS style rules for this widget.

Allowed child elements and their attributes

Element	Attribute
Structure	Name	Content	Description
cv-dimmer cv-address	slot	switchAddress, brightnessAddress or tileAddress
	transform	string	Defines the datatype in the backend, e.g. DPT:1.001 for KNX datapoint type 1.001.
	mode	disable, read, write or readwrite	Defines if this address is only used to `read`, `write`, both `readwrite` or none of them ``disable`.
	value	string	Fixed value sent to this address.
	on	click, down or up	Event on which a `value` should be sent to this address (only useful in mode=``write or readwrite`), also needs ``value.
	target	string	Target in the parent widget the value if this address should be use for. The possible values depend on the parent widget.
	format-pos	decimal	Position for format string when multiple addresses are used.
	qos	decimal	Only MQTT: QoS
	retain	true or false	Only MQTT: retain flag
	selector	string	Only MQTT: JSON selector
	backend	string	Optional name of the backend this address belongs to.
	mapping	string	Map the bus value to a different value, text or symbol for displaying. See also mapping
	format	string	Formatting of the value (printf syntax).
	delay	positiveInteger	Optional delay in milliseconds that a write-request to this address is delayed.
	send-mode	on-change or always	Usually the elements that are using this address receive an update-event only when that value hast changed (`on-change`). This check can be disabled `always` to send the update-event every time when a new value has been received from the backend.

Element	Attribute
Structure	Name	Content	Description
cv-dimmer span	slot	primaryLabel or secondaryLabel
cv-dimmer span	tr	true or false	Defines that the text content of this element should be translated.