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Control an Arduino LED with a MERN Web App – A Beginner’s IoT Project
Introduction As a tech enthusiast, I’ve always been fascinated by the power of the Internet of Things (IoT)—the way physical devices can seamlessly interact with the digital world. Recently, while learning the MERN stack, I was eager to explore how IoT can integrate with web technologies. In this beginner-friendly project, I’ll walk through connecting an Arduino UNO board to a web app to control an LED remotely. This project demonstrates a two-way communication system: ✅ The user interacts with a web app to turn an LED on/off.✅ The real-time status of the LED is displayed in the web app for instant feedback. Note: At this stage, I’m not using MongoDB (keeping it simple), focusing instead on establishing a basic connection between an IoT device and a web application.
Introduction
As a tech enthusiast, I’ve always been fascinated by the power of the Internet of Things (IoT)—the way physical devices can seamlessly interact with the digital world. Recently, while learning the MERN stack, I was eager to explore how IoT can integrate with web technologies.
In this beginner-friendly project, I’ll walk through connecting an Arduino UNO board to a web app to control an LED remotely. This project demonstrates a two-way communication system:
✅ The user interacts with a web app to turn an LED on/off.✅ The real-time status of the LED is displayed in the web app for instant feedback.
Note: At this stage, I’m not using MongoDB (keeping it simple), focusing instead on establishing a basic connection between an IoT device and a web application.
