450+ 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 from Circuit Digest. All projects 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 of IoT Projects, ESP32 Projects, Robotics Projects, and Raspberry Pi Projects

July 27, 2023

Hey there, music lovers! We've got something exciting to share with you! We've already…

July 21, 2023

MicroPython is a subset of Python 3 optimized to run on microcontrollers. It provides an…

July 19, 2023

The planet Mars has captivated our imagination for centuries, and the idea of sending…

June 21, 2023

An Arduino hourglass project is a fun and educational project that involves creating a digital hourglass…

May 26, 2023

Shark Tank India - the show which has inspired many Indians to start their own enteprenual…

May 8, 2023

If you're up for a challenge, you could create your own Tetris game using an Arduino and an…

March 8, 2023

A stepper motor is a type of brushless DC motor that divides a full rotation into a number of steps, thus allowing for…

March 6, 2023

The DHT22 temperature and humidity sensor is a versatile and cost-effective sensor used to measure ambient temperature…

March 2, 2023

A 4x4 membrane keypad is a compact and a cost-effective input device that is commonly used…

February 24, 2023

A single-channel relay is an electronic switch that can be controlled by a low-power…

February 8, 2023

In this project, we are going to build an audio bug using Arduino and NRF24L01. This audio…

February 2, 2023

If you are interested in building robots then it is certain that you need to learn how to control the speed and…