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

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…

January 29, 2021

If you are a maker like me and looking for some interesting projects online, a milliohm meter is one easy and useful thing you…

January 6, 2021

If you are an electronic enthusiast like me who wants to tweak around with different electronic circuits, having a decent…

January 4, 2021

“Good morning. It’s 7 A.M. The weather in Malibu is 72 degrees…” these were the first words of JARVIS when being introduced in…

December 30, 2020

In this tutorial, we are going to talk about fuses. Back when I was in college and learning about all the cool things in…

December 17, 2020

ATtiny85 Microcontroller Chip is an affordable and powerful alternative to other Arduino microcontrollers, especially when you…

November 30, 2020

In this tutorial, we are going to build an easy and cheap Pedometer using ATtiny85 IC, MPU6050 Accelerometer & Gyroscope,…