Simple publisher for MQTT server

This is a simple program that shows how does the "publisher" in MQTT server model works. It publish "On" as a message on a server with IP address 192.168.1.105. Be carefull, we have already installed an instance of MQTT server on your Raspberry. And it lives on your Raspberry so the server has the same IP addres as the Raspberry. This means that you have to replace the IP addres in the program, with the addres of your Raspberry. If you forget it you can type "ifconfig" in the command promt and search for the "inet" line.

wlan0: flags=4163  mtu 1500

        inet 192.168.1.105  netmask 255.255.255.0  broadcast 192.168.1.255

The name of the client in this case is "Publisher 1" and the message is posted under the topic "Air Conditioner".

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#a37tbu
14 Dec 2018

Courses and lessons with this Program

This Program is used in the following courses and lessons

Perfect STEM course. Module 2 - 1D Games with Led strip.

Get a shiny RGB LED-strip. Connect it to a power supply and smart computer like Raspberry Pi, and you'll have your own playground. Create your own games with your unique rules in only one dimesnion. Play.

That's the second part of our perfect course. You move through the content, we check it and return feedback to you.

In the end, you should be able to program and design 1D games that make your games more interesting than ever. For everybody age 12+, 16+, 21+, 35+, etc

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Publisher and Subscriber

wlan0: flags=4163  mtu 1500

        inet 192.168.1.105  netmask 255.255.255.0  broadcast 192.168.1.255

The name of the client in this case is "Publisher 1" and the message is posted under the topic "Air Conditioner".