500+ DIY Arduino Projects with Code & Circuit Diagram

Arduino is a popular open-source development board used by engineers, hobbyists, and makers to develop electronic projects and prototypes easily. 

The below list consists of a large collection of free Arduino Projects that was built by us here in Circuit Digest. All the projects that we have provided here consist of neatly illustrated Arduino circuit diagrams and detailed explanations, the relevant Arduino code is also provided for a complete do-it-yourself tutorial. If you want more projects you can also check out our collection at Arduino IoT Projects | Arduino Robotics Projects | Arduino AI Projects | Arduino Home Automation Projects | Raspberry Pi Projects | ESP32 Projects

Breathing clean, healthy air is vital for our well-being, yet air quality remains a concern in many environments. In this article, we delve into…

In the world of electronics and robotics, servo motors play a crucial role in controlling…

In today's fast-paced world, convenience is key. Dealing with the temperature fluctuations in your living space can be…

Avoiding obstacles is a key job in robotics, where autonomous robots aim to reach their destination without bumping…

Waste management has become a pressing global issue as urbanization continues to grow. One…

Welcome to our latest project, an exciting journey where we delve into the world of…

In this blog, we will learn about how to interface a Passive Infrared sensor (PIR Sensor) or…

In this tutorial, we will learn to Guide you about how you can interface a heartbeat sensor…

In the domain of robotics and automation, precision-controlled mechanical movements have…

Welcome to our blog post on interfacing the WS2811 (5V) RGB LED strip with Arduino! In this guide, we will…

Tired of your old Arcade games which all looks and works in the same way? Want to create a…

There are many ways to communicate between a product and a user, but the most common and…