Hi, i use a lot of weather sensor with RFXCOM binding. Sometimes reception is bad / battery gone. I like to show the last update date/timestamp. What would be the best way to do so?

I wouldn’t add it to the GenericItem, see here a previous discussion. But we can think of other ways to make it more easily available to UIs through REST (although we have to be careful not to send too many events as some bindings might create several state updates per second).

[image] waitz_sebastian: Hey, I’m using a DateTime item. OH can do maths on dates. Very nice feature. I think I got this from the sample rules, but not too sure. Heres my full config stack: .item: DateTime Fibaro_Motion_1_LastUpdate “Last seen [%1$ta %1$tR]” <clock> .rule: rule “Records…

I think same problem described here: https://community.openhab.org/t/valuecolor-problems-after-update-to-oh2-2/37636

I have the same problem, just waiting for a new stable version which will (hopefully) fix this. I use this lambda for timestamps: val Functions$Function2<GenericItem, String, String> getTimestamp = [ //function (lambda) to get a timestamp. Returns formatted string and optionally updates an item …

I have implemented this LastUpdate method but it stopped changing the colors after updating Openhab to 2.2.0-1. The timer is still working. It seems valuecolor can not get the time in seconds from a DateTime item anymore. Any ideas?

I´m just trying your examples. I have these PIR´s all around, and I want to know when they last fired. I thought I could just rule: rule "Spisestue PIR Last Updated" when Item spise_pir changed then getTimestamp.apply(spise_pirUpdated, "%1$ta %1$tR") end Sitemap Text item=spise_pirUp…

You are missing the code under “I use this lambda for timestamps:”

I have no idea where to place that part, to be honest.

At the top of your .rules file.

openHAB Community

Show date/time of last sensor update

Setup, Configuration and Use Beginners

jwiseman (Mr. Wiseman (OH 5.1.4 Stable on Pi5)) July 1, 2018, 12:49am 19

Thank you for this!

I was looking for a way to date/time stamp the zWave nodes and this will do it . . .

Best, Jay

zWave Monitor lastSent & lastReceive Date/Time on Nodes