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openHAB, Telegram Bot and quoting URLs

A while ago I integrated DWD warnings (Deutscher Wetterdienst) into our home automation system, and receive severe weather notifications ever since then. That works quite good, but it was missing a weblink with more details - or if you want to forward the warning to someone it would be useful to have a link to the warning as well. The DWD binding does not provide that piece of information, but it is easy enough to add - or so I thought.


Deutscher Wetterdienst notifications in openHAB and Telegram

The “Deutscher WetterdienstDWD (German Weather Service) provices a service which sends out alarms for upcoming events, like heavy rain, storm, blizzard, strong winds ect. This service is only available for Germany. And it has a binding for openHAB. Time to integrate this, activate a number of regions I’m interested in, and send notifications to our mobile phones.


New OpenWeatherMap channels missing after openHAB upgrade from 2.4 to 2.5

A while ago I upgraded openHAB from version 2.4 to 2.5. That comes with the usual share of problems, but eventually I got it working.


openhab2: check if alive

As mentioned in my previous openHAB blog post: it seems to be too much to ask to have a reliable and working display in the kitchen.

Another problem I found is that the weather data occasionally does not update. Everything seems to work, no errors in the log, just no updated data. Of course this results in outdated weather info in the kitchen, and the threat that “someone” will buy a regular weather station and render my 7" Raspberry display useless.


Apache Karaf client in openHAB, and the "Session has been closed" error

Don’t you love it when things suddenly stop working?

In my openHAB installation I have a check which verifies that the weather data is up to date. Otherwise it restarts the openhab2 service. And this check stopped working … Leaving the kitchen display not updated for a longer time. The same display where I expect the entire installation to “just work”, and don’t create so many different problems. Seems to be a hard problem to have an openHAB installation without any trouble …


Show raw openHAB Image Type in HABpanel

In our Home Automation system, I read weather data from OpenWeatherMap. I blogged about the implementation before. The weather data provides an icon which can be used to show the current weather:


Weather Forecast in openHAB based on OpenWeatherMap, using Ansible

After setting up OpenWeatherMap in openHAB, I had another project on my list: send a forecast for the next day.

That is rather easy to do with a Cron rule.


Install OpenWeatherMap in openHAB, using Ansible

Next item on my home automation todo list: weather, and forecast. No good system without that data!

After exploring the options which openHAB supports, I settled for OpenWeatherMap. Note: you need an account with OWM, the basic functionality is free, the paid options give you more and better forecast.