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 3, 2021

In this project, we will build a remote-controlled Arduino Air-Boat that can be controlled wirelessly using the 433 MHz RF…

July 3, 2021

We are living in the era of 5G and 5G-enabled devices; however, old technologies like the walkie-talkie system and RF…

July 2, 2021

Robotic Arms are one of the fascinating engineering creations and it is always fascinating to watch these things tilt and pan…

June 26, 2021

There are many pulse-oximeter sensors available in the market for medical purposes, and in one of our previous projects, we…

June 25, 2021

In this tutorial, we are going to build a handheld game console using Arduino Pro Micro, Arduboy package, and a handful of…

June 24, 2021

Are you fed up with manually logging in to your windows or social media accounts? Wouldn’t it be nice to have a pocket-sized…

June 23, 2021

Digital load scales are another miracle of modern-day engineering and design. Yes, we are talking about the weighing scale we…

June 7, 2021

Ultrasonic sensor, also known as a SONAR sensor is an electronic device that is used to measure the distance of a target object…

June 6, 2021

In 2019, Arduino Platform introduced Arduino Cloud IoT which is an end-to-end solution to help IoT enthusiasts and…

June 4, 2021

The need for home security alarm systems nowadays is a serious demand. As the number of crimes is increasing every day, there…

June 1, 2021

In this project, we will be exploring AD8232 ECG sensor working and will connect it with Arduino to run some analysis on the…

May 28, 2021

Most connected IoT devices today are connected to the internet using a Wi-Fi connection. Although a Wi-Fi connection enables…