jgodfrey
commented
6 months ago I believe this topic (from your above message):
picframe/subdirectory
should instead be:
picframe/directory
how does the pi know to listen to "picframe/subdirectory"
The picture frame software itself is listening for messages published to a number of picframe/* topics...
Edit:
The topics are listed in the values section of this wiki page
I really appreciate the digitalpictureframe.com web pages. Thnaks
I am trying to get my hear around MQTT. Using the web page: I have installed MQTT
I ran the suggested tests and all is working well.
in a shell window I ssh to my pi using my mac and I issue the command: mosquitto_sub -h localhost -v -t frame_channel
It seems that this command makes the pi listen to the frame_channel
Now I go over to my pc and I enter the command: mosquitto_pub -h localhost -t frame_channel -m "Hello Digital Picture Frame"
Any yea it works perfectly!
Now I want to send some commands from SimplePi on my ipad.
I send the command: mosquitto_pub -h localhost -t picframe/subdirectory -m "Family" # I have the subdirectory set up and named wiht pics in it
But nothing seems to happen.
My question is: I the first example I told pi to listen to "frame_channel"
But in the second example (from my ipad) how does the pi know to listen to "picframe/subdirectory"
And if it is not told to listen to this specifcally is that why nothing seems to happen?
Ray