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

October 4, 2016

Batteries are generally used to power up the Electronic Circuit and Projects, as they are easily available and can be connected…

September 23, 2016

Security has always been a major concern for all of us and there are many Hi tech and IoT based security and surveillance…

September 13, 2016

Hi guys, are you a newbie to the world of Robotics or Electronic? OR Are you looking for a simple yet powerful project to make…

September 6, 2016

In this project we will use an existing FM radio which went repair a long time ago, to convert it into a Smart Wireless FM…

August 30, 2016

Any color is made up of three colors: Red, Green and Blue, using a simple RGB LED you can generate any color. But the…

August 23, 2016

Augmented Reality and Virtual Gaming has become a recent trend in the gaming industry. The times of using a keyboard/Joystick…

August 17, 2016

Sometimes people find it difficult to use the GSM Module for its basic functions like calling, texting etc., specifically with…

August 15, 2016

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

August 10, 2016

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

August 9, 2016

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

July 9, 2016

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

July 8, 2016

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