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

Digital wall Clocks are getting more popular now days and they are better than analog clock as it provides accurate time in…

In some applications, user input is required to control the functions of a device. There are different kinds of user input…

Cameras have always dominated the electronics industry as it has lots of applications such as visitor monitoring system,…

Obstacle Avoiding Robot is an intelligent device that can automatically sense the obstacle in front of it and avoid them by…

Humans and machines interact and communicate with one other in many possible ways, computers have monitor, keyboard and mouse,…

The advancement in Electric Vehicles, Drone and other mobile electronics like IoT Devices seems to be promising for the future…

It is expected that by 2020 we will have 25 Billion devices connected to the internet. To give you an idea that is more than…

Choosing a communication protocol for communication between microcontrollers and peripheral devices is an important part of…

In previous tutorials we have learned about ZigBee protocol and its architecture, and also learned about…

Consider a fast-moving car, if it suddenly gets hit by another car in opposite direction, the first thing that happens is that…

We all know that the Microcontrollers work only with digital values but in real world we have to deal with analog signals. That…

Today digital meters are replacing analog meters in every sector whether its electricity meter or taxi fare meter. The main…