http://www.ezpic.org/ 2026-04-14T03:23:00+0200 http://www.ezpic.org/ http://www.ezpic.org/lib/tpl/codowik/images/favicon.ico text/html 2018-07-16T12:20:31+0200 Anonymous (anonymous@undisclosed.example.com) http://www.ezpic.org/doku.php?id=tut:index&rev=1531736431&do=diff Tutorials tut:setup text/html 2018-07-20T18:31:08+0200 Anonymous (anonymous@undisclosed.example.com) http://www.ezpic.org/doku.php?id=tut:mqtt&rev=1532104268&do=diff What is MQTT ... see Wikipedia ... see <https://www.hivemq.com/blog/mqtt-essentials-part-1-introducing-mqtt> ... see <https://blog.doubleslash.de/mqtt-fuer-dummies/> MQTT Data Flow by Examples Based on this image the following examples can show typical data flows Example: 1 Publisher, no Subscriber * Client X connected If Client X publishes any data with Topic 1 and nobody is listening (nobody has subscriped Topic 1) the data is lost. text/html 2018-07-16T12:20:43+0200 Anonymous (anonymous@undisclosed.example.com) http://www.ezpic.org/doku.php?id=tut:setup&rev=1531736443&do=diff # First Steps ## Install on RaspberryPi ### Start a terminal ### Get the source code from GitHub repositors ``` " git clone <https://github.com/falab-wue/ezPiC>" ``` A directory `ezPiC` is created ### Set actual user privileges for socket access ``` " sudo touch /etc/authbind/byport/80