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 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 at Arduino IoT Projects | Arduino Robotics Projects | Arduino AI Projects | Arduino Home Automation Projects | Raspberry Pi Projects | ESP32 Projects

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…

January 23, 2023

A multimeter is a must-have tool in your arsenal when it comes to creating or developing electrical circuits. Without…

January 18, 2023

We at Circuitdigest have worked on a lot of PCB projects, but have consistently faced a…

January 4, 2023

Winter is coming and that simply means cold weather with early nights.…

December 26, 2022

If you are planning on building a robot with DC motors then you will eventually learn that you need to control both the…

December 6, 2022

When it comes to giving your project wireless capabilities, the 433MHz ASK transmitter and receiver is a common choice…

December 2, 2022

Are you tired of having shaky footage ruin your video? Or do you want to make some cinematic…