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

July 4, 2017

Arduino is an excellent way to simplify and speed up your microcontroller projects, thanks to its community of developers who…

June 28, 2017

Today we are here with an interesting project in which we will Send Data to the SparkFun server using Arduino and GPRS. This is…

June 13, 2017

Ever wanted to build a Face Tracking Robotic Arm or Robot by simply using Arduino and not any other programming like OpenCV,…

June 9, 2017

An earthquake is an unpredictable natural disaster that causes damage to lives and property. It happens suddenly and we cannot…

June 7, 2017

The Arduino Development Platform was originally developed in 2005 as an easy-to-use programmable device for art design projects…

June 2, 2017

Welcome to another project in which we will build a small Robot which can walk and dance. The project aims in teaching you how…

May 16, 2017

This is a very interesting project in which we are going to learn how to implement virtual reality using Arduino and Processing…

May 1, 2017

In our previous tutorials, we have learned about How to interface GPS module with Computer, how to build a Arduino GPS Clock…

April 20, 2017

In this project we make a Cool Speedometer for bikes or any automotives by using Arduino which broadcast the speed using…

April 11, 2017

This is an interesting project in which we explore the power of an Arduino and Android to create a Surveillance device which…

March 2, 2017

Today we are going to build an Arduino wight machine,  by interfacing Load Cell and HX711 Weight Sensor with Arduino. We have…

January 12, 2017

In this article, we are going to make a Sun Tracking Solar Panel using Arduino, in which we will use two LDRs (Light-dependent…