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

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

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

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

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

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

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

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

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

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

Previously we have covered many types of Home automations using different technologies like DTMF Based Home Automation, PC…

After developing few popular robotic projects like line follower robot, edge avoiding robot, DTMF robot, gesture controlled…

In this tutorial we will develop a circuit using Force sensor, Arduino Uno and a servo motor. It will be a servo control system where the servo…