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

In this tutorial, we will show you how to control DC motor using MATLB and Arduino. If you are new with MATLAB then it is…

I recently purchased the Neo Pixel LED strip and was quite impressed by the way it works. The tiny LED’s have an inbuilt driver…

While Internet of things (IoT), Industry 4.0, Machine to Machine communication etc are getting increasingly popular the need…

Health monitoring is the major problem in today’s world. Due to lack of proper health monitoring, patient suffer from serious…

Hi guys, during the last few weeks, I’ve been working on reconnecting with my love for the guitar. Playing the box guitar was…

Measuring the speed/rpm of a Vehicle or a motor has always been a fascinating project to try. In this project, we are going to…

All embedded lovers are familiar with multimeter which a great tool to measure voltage, current, resistance etc. A multimeter…

As electronics engineers, we always depend upon meters/instruments to measure and analyse the working of a circuit. Starting…

After being inspired by RYNO motors and other self balancing scooters from Segway, I always wanted to build something my own…

Although Raspberry Pi and Arduino are two different hardware in terms of their applications and structure, but they…

The Oscilloscope is one of the most important tools you will find on the workbench of any electronics engineer or maker. It is…

About 71% of earth is covered with water, but sadly only 2.5% of it is drinking water. With rise in population, pollution and…