Java Runtime Environment: which java platform is used and what version
openHAB version: 3.4.0
Issue of the topic: No Issue Starting configuration
I am working on getting APRS working with OpenHAB. A project called mqtt-aprs has taken care of most of the heavy lifting of getting APRS Queries onto my MQTT server. The way this works the software connects to the APRS servers and uses some filters to weed out all but the call signs I am looking for. When a message matches the filters it is forwarded to the MQTT server under the call sign of the person who sent it.
In MQTT this looks like:
RF/
aprs/
Callsign1-SSID/
raw = Callsign1-SSID>Routing Info,message type,Callsign1::Callsign2 : This is a test
There are some more elements under the Callsign1 Topic. Callsign1 is the FROM callsign and Callsign2 is the TO callsign.
Because the from callsign can vary greatly even with the same user because of the SSID. I would like to display new messages on my system. Any suggestions on creating an MQTT thing that would be able to display the information from multiple topics whose name may not be known at the time of creation?
So are you saying that messages are published to the MQTT topic
RF/aprs/xxxxxx-yyyyyy/raw
where xxxxxx-yyyyyy contains the from-user’s callsign (xxxxxx) and that user’s WIFI (?) SSID (yyyyyy), both of which will vary infinitely as far as your setup is concerned?
RF/aprs/+/raw
or
RF/aprs/Callsign1+/raw
This will allow you to have different items trigger different things when different people connect to your system.
Like person 1 3 4232 3445 can open gate
What do you want to do with the message?
Email, Push, Telegram or have google read it out to you
Close Where XXXXXX is their callsign where YY is a 2 digit SSID or an appendix to the callsign to designate what station they are using. But yeah XXXXXX-YY will vary infinitely The only other thing I can think of is to rewrite the mqtt-aprs bridge, I don’t think it would be too difficult but would prefer to avoid it.
That’s the bit I am trying to sort out. subscribing to just one topic is not possible with the schema that I currently have. The messages will likely be displayed on the dashboard. If someone sends APRS messages to me it is never an emergency and if it Is, keeping them in a place that is visible to all is useful.
As @denominator has mentioned, MQTT itself allows the use of wildcards. See the below webpage for more info. I’ve never tried it with the MQTT Binding in openHAB though…
This is the topic I called. Within the topic the raw contains everything. Some messages are encoded into other formats so using the
RF/aprs/+/message
gets you the message. If you want the call sign, you need to create a new channel in your APRS thing, get the +/raw string, then pass it through REGEX I am figuring that portion out now.
Its a great feeling when you get "Hello World" working.
If you need help with automations us know. Like when openHAB has detected no one is home at night and the lighs are on send APRS message. This will ask if I want the lights turned off and have openHAB respond to the answer.
