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Home » Eclipse Projects » Eclipse SmartHome » How to use Trigger-Channels?
How to use Trigger-Channels? [message #1758762] Sun, 02 April 2017 11:53 Go to next message
Zocker 1996 is currently offline Zocker 1996Friend
Messages: 2
Registered: April 2017
Junior Member
Hi!

tl;dr:
I need to model buttons for a thing and according to the documentation the best way to do this is trigger channels.
I cant find any good examples for triggers, so could someone provide some code and xml as sample? I already added some xml
and in the Thing description the channel is shown but I cant link anything to it nor is it rendered in the control section in paper ui.

Background:
I'm developing a binding for my personal use: I recently build myselfe a home entertainment system with many devices.
I use lirc and a raspi to control them via ir commands. I could use the lirc server and connect it to openhab via a http binding,
but that doesnt fit all my needs, same goes for the exec binding: I want to model each of this devices as things. The usual items like SwitchItems and StringItems fit for most porpuses, but I also need to be able to use something just like buttons, which I can directly map to the ir remote command. Therefor I want to use trigger channels. Bonus question: Can I create my own Items by extending GenericItem and using a own ItemFactory? Would these items be rendered correctly in paper ui out of the box?

Re: How to use Trigger-Channels? [message #1759254 is a reply to message #1758762] Sat, 08 April 2017 20:17 Go to previous message
Kai Kreuzer is currently offline Kai KreuzerFriend
Messages: 657
Registered: December 2011
Senior Member
Did you check whether https://github.com/eclipse/smarthome/pull/2537 could be of any help for you?
If not, then the Amazon Dash button binding is probably the best example of how to create a trigger channel: https://github.com/openhab/openhab2-addons/tree/master/addons/binding/org.openhab.binding.amazondashbutton

Wrt the bonus question: No, you cannot create your own item types - the problem is indeed that no UI would be able to deal with it, so only the existing types should be used.
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