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

August 31, 2018

As electronics engineers, we always depend upon meters/instruments to measure and analyse the working of a circuit. Starting…

August 27, 2018

After being inspired by RYNO motors and other self balancing scooters from Segway, I always wanted to build something my own…

August 23, 2018

Although Raspberry Pi and Arduino are two different hardware in terms of their applications and structure, but they both are…

August 22, 2018

The Oscilloscope is one of the most important tools you will find on the workbench of any electronics engineer or maker. It is…

August 14, 2018

About 71% of earth is covered with water, but sadly only 2.5% of it is drinking water. With rise in population, pollution and…

August 10, 2018

Robotic Arms have proved themselves useful and more productive in many applications where speed, accuracy and safety is…

August 10, 2018

In previous article of Getting Started with LabVIEW, we have seen about LabVIEW and how it can be graphically programmed and executed in computer…

August 3, 2018

In this DIY session, we make an Arduino Motor Driver Shield to drive DC motors, stepper motor and Servo Motor. Compatible with…

August 2, 2018

Fire Alarm Systems are very common in commercial building and factories, these devices usual contain a cluster of sensors that…

July 27, 2018

Reed switch is used in many of the real-life applications such as magnetic door switch, laptops, smartphones etc. In this article, we learn about…

July 24, 2018

A Rotary encoder is an input device which helps the user to interact with a system. It looks more like a Radio potentiometer…

July 17, 2018

Building stuff and getting them work, the way we want, has always been sheer fun. While that being agreed, building stuff that…