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IoT · Beginner

Live sensor dashboard with Node-RED

Wire MQTT telemetry into a live Node-RED dashboard and see real sensor data move from device to useful visual feedback without a cloud account.

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Project build preview
Project blueprint

What you'll build

A dashboard becomes useful when it reflects the device reliably. This project connects the MQTT starter loop to Node-RED so readings can be monitored, transformed, and presented in real time.

It is a practical bridge between embedded telemetry and the operational interfaces used to understand a deployed system.

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Included build referenceBuild reference — ESP32, MQTT broker, and Node-RED flow
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Project overview

Understand the build here. Learn and access the assets in the LMS.

This page covers what the project does, what you need, and how the build comes together. The LMS contains the complete lessons, source code, circuit diagrams, and deployment materials.

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Before you start

Build requirements

01ESP32 sensor publisher
02A local MQTT broker
03Node-RED installed locally
04A browser for the dashboard
From setup to working system

Build sequence

Follow the steps in order, verify each checkpoint, and finish with a working project you can explain and extend.

01

Connect the MQTT flow

Subscribe to the device topic and confirm messages arrive in Node-RED.

02

Normalize incoming readings

Parse payloads and shape the data for dashboard widgets.

03

Build the dashboard

Add live charts, values, and status indicators for the sensor.

04

Test disconnect and recovery

Stop and restart the device to verify the dashboard handles real conditions.

Build the next checkpoint

Stop collecting tutorials. Ship a working build.

Use this project as a concrete piece of your embedded, IoT, or edge AI portfolio.

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