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

Creating a Local Network to share personnel and confidential data's has become almost impossible for a common man in our modern…

There are many types of security systems used all over the world and Digital Code Lock is one of them. We have already covered…

I started this project in order to get rid of various remotes at my home and build something single which could incorporate…

In this project I am going to share a LED Scroll Bar as shown in the above picture. Ten LED strips can flash in…

This Arduino based Real time clock is a digital clock to display real time using a RTC IC DS1307 which works on I2C…

Humidity and Temperature are very common parameters for measuring at many places like farm, green house, medical, industries…

Vehicle Tracking System becomes very important now days, especially in case of stolen vehicles. If you have GPS system…

Almost every electronic hobbyist must have faced a scenario where he or she must measure the frequency of signal generated by a…

Raspberry Pi and Arduino are the two most popular open source boards in Electronics Community. They are not only popular…

Arduino is an open-source development platform for engineers and hobbyists to develop electronics projects in an easy…

Today, we are going to Interface 2.4 inch TFT LCD Shield with Arduino. By using this color TFT LCD shield we can show…

Wireless communication between Electronic devices and modules is very important, to make them ‘Fit’ in the World of Internet of…