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

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…

May 28, 2021

Automatic Bottle Filling Machines are most commonly used in beverages and soft drink industries. These machines use a conveyor…

May 26, 2021

Obstacle detection is one of the major concerns for a blind person. Presented here is a smart blind stick using Arduino Uno and…

May 8, 2021

An infrared sensor is an electronic module that is used to detect the certain physical appearance of its surroundings by either…

May 7, 2021

Wireless communication is the future of technology! Communication established between two modules opens a large scope of…

April 15, 2021

Who does not love photography! There are lots of subjects in this creative field and each one is unique, let's choose one. How…

April 4, 2021

India being a sports-loving country loves to watch sports in a group where the whole neighborhood comes and enjoys the sports…

April 1, 2021

In the era of Internet of Things (IoT), wireless communication is getting increasingly popular in everyday life. Nowadays,…

March 23, 2021

RFID (short for Radio Frequency Identification) tagging is an ID system that uses electromagnetic waves in radio frequency to…

March 1, 2021

Motion detection is a common application for intruder alarms, light switches, and other home and industrial automation…

February 3, 2021

In industrial automation and control, PID controller has become one of the most reliable control algorithms that can be…