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

June 4, 2015

Arduino has become the most popular Microcontroller among students and hobbyists in very less span of time. So everyone try to…

June 3, 2015

DC motor is the most used motor in Robotics and electronics projects. For controlling the speed of DC motor we have various…

June 2, 2015

In this project we are going to interface RGB (Red Green Blue) LED with Arduino Uno. A typical RGB LED is shown in below figure…

June 1, 2015

The name Arduino is typically buzz word among most of the electronics students or hobbyists alike. Its ability to build things…