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

December 26, 2019

Fitness bands are getting very popular nowadays, which not only counts the footsteps but also tracks your calories burned,…

December 23, 2019

The "Quick Response" code or abbreviated as QR code has become an essential part of our digital lives, chances are that you're…

December 13, 2019

If you want to build your own temperature monitoring system or to measure the altitude of your drone or simply want to measure…

December 10, 2019

We all know of the wired doorbell systems which require wires and suitable outlets for it to work satisfactorily. As the wired…

December 6, 2019

When it comes to giving your projects wireless capabilities, the 433Mhz ASK Hybrid Transmitter and receiver is a common choice…

December 3, 2019

Display advertising plays a very importing role in marketing and there are several advertisement methods like newspapers,…

November 25, 2019

In this project we are going to work on an innovative arduino project idea, where we can count the paper currency notes and…

November 14, 2019

Recently I got intrigued with all the new Home Automation products in the market and hence I purchased a Google Home Mini and…

November 8, 2019

Arduino has been the go-to development platform for fast prototyping and idea validation. Many of us would have started with…

November 6, 2019

As many of us know computers were invented around 1871, but it was not until 1961 we had them password protected. Early in the…

November 5, 2019

Smart speakers like Amazon Echo or Google home are getting popular now days and both have capability to integrate custom skill…

October 25, 2019

In our household, most of the appliances are powered from the AC supply such as Lights, TVs, and Fans, etc. We can turn ON/OFF…