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

A lot of intrusion activities/security threats in the army area are seen nowadays. This gave me an idea to…

I have built a model of a Modern Smart Home. These features demonstrate what a Smart Home would be like! A…

As we have heard many fire accidents take place around us. The Surat fire accident in which many students…

It is important to first understand what the project is intended to do. Way before starting my IoT &…

What I have made here is an attendance register that records the temperature of a registered user and…

Today we can say the Mobile phone is our friend. Smartphones can do almost everything. So, is it possible to…

The Internet of Things (IoT) allows objects to be identified and controlled from a distance using…

In this project, we have the above mentioned components and the working is quite east to understand .The…

Being in the field of electronic engineering, we wanted to explore and experiment with the different…

This project is based on a water tank management system. The project name is a Manual And Automatic Water Level Controller…

Students who receive STEM education become critical thinkers, have a higher level of science literacy, and…

Do you feel disturbed when you need to adjust the temperature? The wait is over, the solution is here!…