Difference between revisions of "Automation - MQTT"
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(Created page with "*Proven on Mint 19.3 *Proven on SparkyLinux 5.11 *Proven on raw Debian (With a caveat) [https://mosquitto.org/ Mosquitto MQTT Broker] == Installing Mosquitto == *<code>sudo apt-get install mosquitto</code> Pretty simple, eh? === Ensure that Mosquitto broker is running === *<code>sudo service mosquitto status</code> expected result is <u><code>Active: active (running)</code></u> == Install client tools for testing etc == (Do this on any machine expected to manually...") |
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| Line 1: | Line 1: | ||
*Proven on Mint 19.3 | *Proven on Mint 19.3 | ||
*Proven on SparkyLinux 5.11 | *Proven on SparkyLinux 5.11 | ||
*Proven on raw Debian (With a caveat) | *Proven on raw Debian (With a [[#Debian Caveat{{!}}caveat]]) | ||
[https://mosquitto.org/ Mosquitto MQTT Broker] | [https://mosquitto.org/ Mosquitto MQTT Broker] | ||
= Installing Mosquitto = | |||
*<code>sudo apt-get install mosquitto</code> | *<code>sudo apt-get install mosquitto</code> | ||
Pretty simple, eh? | Pretty simple, eh? | ||
== Ensure that Mosquitto broker is running == | |||
*<code>sudo service mosquitto status</code> | *<code>sudo service mosquitto status</code> | ||
expected result is <u><code>Active: active (running)</code></u> | expected result is <u><code>Active: active (running)</code></u> | ||
== Install client tools for testing etc | == Debian Caveat == | ||
= Install client tools for testing etc = | |||
(Do this on any machine expected to manually use MQTT) | (Do this on any machine expected to manually use MQTT) | ||
| Line 20: | Line 22: | ||
*<code>sudo apt install mosquitto-clients</code> | *<code>sudo apt install mosquitto-clients</code> | ||
== Testing == | |||
=== In a terminal: === | |||
*<code>mosquitto_sub -h localhost -t "mqtt" -v</code> | *<code>mosquitto_sub -h localhost -t "mqtt" -v</code> | ||
=== In another terminal: === | |||
*<code>mosquitto_pub -h localhost -t "mqtt" -m "Hello MQTT"</code> | *<code>mosquitto_pub -h localhost -t "mqtt" -m "Hello MQTT"</code> | ||
Revision as of 18:13, 11 January 2022
- Proven on Mint 19.3
- Proven on SparkyLinux 5.11
- Proven on raw Debian (With a caveat)
Installing Mosquitto
sudo apt-get install mosquitto
Pretty simple, eh?
Ensure that Mosquitto broker is running
sudo service mosquitto status
expected result is Active: active (running)
Debian Caveat
Install client tools for testing etc
(Do this on any machine expected to manually use MQTT)
sudo apt install mosquitto-clients
Testing
In a terminal:
mosquitto_sub -h localhost -t "mqtt" -v
In another terminal:
mosquitto_pub -h localhost -t "mqtt" -m "Hello MQTT"
Now the message “mqtt Hello MQTT” will be displayed in the first terminal where the topic “mqtt” is subscribed.
Subscribing to # gives you a subscription to everything except for topics that start with a $ (these are normally control topics anyway).