An MQTT-powered display using an Arduino Ethernet and LCD


This project shows Arduino-based display connected to our network that can subscribe to MQTT topics and display the content of messages.

The original link is

The authors is introducing his project as below.

A simple example using the MQTT Arduino library and a 16×2 LCD.

mqtt example
mqtt example

In this post we will use an Arduino Ethernet with an LCD screen to expand on this system, subscribing to an MQTT topic and displaying the messages as they are published to it from Node-RED. This allows monitoring of the messages on our topics without using a desktop computer.

We will assume that you already have an MQTT broker running with a device publishing messages on a topic.

This project uses 3rd party mqtt library.

To use the Arduino as an MQTT client we will need to make use of a third party library which can be downloaded from here.

You can get all source code and all detail about the project from the original link.

TAG : 201505, W5100, Arduino, IoT, MQTT, LCD



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