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

Hello! everyone, this tutorial will be extremely exciting for electronics makers because we will be designing our own touch-…

Forest fires are common hazards in forests that cause a lot of harm to Wildlife as well as the Environment. It could be avoided…

Line Follower Robot (LFR) is a simple autonomously guided robot that follows a line drawn on the ground to either detect a…

If you are the one interested in working on some kind of smart home project but don’t know where to start and which …

Distance measurement of an object in the path of the person, equipment, or a vehicle or moving object is used in a large number…

In a present-day scenario, we all are so busy with our work that we don't have the time for cleaning our house properly. The…

Nowadays most of the car comes with keyless entry and push-button ignition system, in which you only need to carry the key in…

We are living in the era of 5G and 5G-enabled devices; however, old technologies like the walkie-talkie system and RF…

Robotic Arms are one of the fascinating engineering creations and it is always fascinating to watch these things tilt and…

There are many pulse-oximeter sensors available in the market for medical purposes, and in one of our previous projects,…

In this tutorial, we are going to build a handheld game console using Arduino Pro Micro, Arduboy package, and a handful of…

Digital load scales are another miracle of modern-day engineering and design. Yes, we are talking about the weighing scale we…