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

April 2, 2016

When we come across circuit boards which are previously designed or we take out one from old TV or computer, in attempt to…

March 30, 2016

We are moving towards the World of Internet of Things (IoT). This technology plays a very important role in the Electronics and…

March 9, 2016

We all are familiar with the word ‘Automation’, where the human interaction is minimal and things can be controlled…

March 7, 2016

There are many GPS satellites around the Earth which are used to provide the exact location of any place. Along with the…

March 5, 2016

GPS is a very useful device which is used in many electronics projects and applications like vehicle tracking system, GPS Clock…

March 3, 2016

Vehicle Tracking systems are very commonly used in fleet management and asset tracking applications. Today these systems can…

February 22, 2016

Snake Game has been very popular since the beginning of the Mobile phones. Initially it was come in Black and white cell phones…

February 10, 2016

Mobile phone is a revolutionary invention of the century. It was primarily designed for making and receiving calls & text…

February 6, 2016

Prepaid Electricity Energy Meter is a good concept in which you can recharge its balance, like we do in our mobile phones. In…

February 4, 2016

In this project we are going to make Clapper circuit using the concept of ADC (Analog to Digital Conversion) in ARDUINO UNO. We…

January 23, 2016

Wireless notice board is very selective term for this project, as it has a very wide scope rather than just being a simple…

January 19, 2016

In this project we are going to design a 3x3x3 LED CUBE and connect it to Arduino UNO to get different patterns. For a beginner…