Troubleshooting MQTT!!!

This video is a tutorial on ways to troubleshoot MQTT issues.

Most of the time, issues with mqtt have to do with mistyped mqtt topics. Topics are case sensitive so you have to be very careful that you type them correctly.

I use the mosquitto-client to troubleshoot any mqtt issues that I have. They have a command to subscribe to mqtt topics and another command to publish to mqtt topics.

If you don't already have the mosquitto-client installed, you can do that by.....

sudo apt-get install mosquitto-client

Once you have that installed you are able to subscribe to topics just like this....

mosquitto_sub -u hass -P mqttpassword -t "#" -v (THE # means you will subscribe to all topics and the -v means verbose)

Now if you want to publish a command to a topic you do....

mosquitto_pub -u hass -P mqttpassword -t "/mqtt/topic/example" -m "ON" (the -m is the command you want to send)

I hope this video helps you guys that are having mqtt issues.

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