500+ Arduino Projects with Code - Circuit Diagrams & Tutorials

Browse CircuitDigest’s curated collection of Arduino projects for beginners and advanced makers. Discover practical Arduino project ideas with source code, circuit diagrams, and clear step-by-step explanations. This library of 500+ projects helps you quickly find the right Arduino application for electronics, automation, IoT, robotics, and embedded systems.

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The main idea of this project is to develop a test bed for Industrial Internet of Things to monitor parameters like…

This project is a compact and interactive reaction-time training device, which has been developed with two versions to…

Impact Statement 

This project implements AI based cardiovascular disease prediction from the ECG waveform along…

This is a very interesting project in which we are going to learn how to implement virtual reality using Arduino and Processing…

Snake Game has been very popular since the beginning of the Mobile phones. Initially it was come in Black and white cell phones…

Arduino has always helped to build projects easily and make them look more attractive.  Programming an LCD screen with…

Planning to buy a small voice recorder to record voices or sounds in an environment and store them in its memory?…

An AC (Air Conditioner) which was once considered to be a luxury item and was only to be found in big hotels, movie halls,…

We all know of the wired doorbell systems which require wires and suitable outlets for it to work satisfactorily. As the wired…

Are you fed up with manually logging in to your windows or social media accounts? Wouldn’t it be nice to have a pocket-sized…

Arduino has been a boon for people who are not from the electronics background to build stuff easily. It has been a great…

As the winter season approaches, comes the festival of lights in INDIA. Yes, we are talking about Diwali, known for…