Is there a way to display a different icon for the status of devices monitored through the Network Health binding?

Add-ons Bindings
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I found the following solution for this problem: instead of a Switch, use a Contact item like this:

Contact Presence_MyDevice "My Device" <network> (gNetwork) ["Status"] {channel="network:pingdevice:<id>:online"}

Contact items don’t have the states on / off but open / closed. So I put the following icons in my /etc/openhab/icons/classic directory:

  • network.svg: a copy of the original network.svg from openHAB
  • network-open.svg: a copy of network-on.svg from openHAB
  • network-closed.svg: a copy of network-off.svg from openHAB

Unfortunately I found out that the item states do not refresh properly when using Contact items. This is probably because the states ON / OFF are incompatible with OPEN / CLOSED.

I ended up using Number items. These are set to 0 if a devices is offline and 1 (or 1.0 to be specific) if the device is online. So I added the following icons:

  • network.svg: a copy of the original network.svg from openHAB
  • network-on.svg and network-off.svg: copies of the original icons from openHAB (to ensure compatibility with items with “proper” ON / OFF states)
  • network-0.svg for the offline state
  • network-1.svg and network-1.0 for the online state (not sure if one of those is not needed)
  • *.png versions of all icons above

Refer to this topic for instructions on where to locate the original openHAB icons.

To display the state properly as online and offline instead of 0 / 1, I installed the Map Transformation plugin and added the following map file to /etc/openhab/transform/NumberToOnlineOffline.map:

0=offline
1=online
1.0=online
=offline

Items look like this:

Number Presence_Mobile_Dave "Dave's Mobile [MAP(NumberToOnlineOffline.map):%s]" <network> (gNetwork) ["Status"] {channel="network:pingdevice:6d5264bb21:online"}

On some UIs, the icons wouldn’t change dynamically. I found out that this has to be activated explicitly that it works on all UIs as described in this post.

Finally, on the user interface it looks like this:

grafik
grafik1320×88 6.16 KB

As a result, there are no more confusing switches, the status is shown as online or offline and the icons adapt according to the ping state.