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

The MPU6050 is an IC 3-axis accelerometer and a 3-axis gyroscope combined into one unit. It also houses a…

Knowing the whereabouts of a particular object/person has always been comforting. Today, GPS is being extensively used in asset…

Text-to-speech or TTS system converts normal text into Speech. This tech enables the system to speak out the text in a human…

Ever wondered how our world is moving towards the immersive reality. We are continuously finding new ways and methods to…

While using the BLE HM-10 module, you must encounter some really frustrating problems like you cannot send or receive AT…

Graphical representation is always helpful to visualize the data and it becomes very easy to find trends and patterns by…

As a kid I was fascinated by a toy music car which gets triggered when you clap your hands, and then as I grew up I wondered if…

When you take your phone in sunshine or in high lighting, then it automatically adjusts the brightness according to the…

In the previous tutorial we learned about Modbus RS-485 Serial Communication with Arduino as Slave. In continuation with that…

Bluetooth is one of the most popular and easy to use wireless technology. Over the few years there have been many upgrades of…

We previously interfaced Joystick with Arduino UNO to understand how it works and controlled four LEDs on its left, right, up…

As the name suggests, color sorting is simply to sort the things according to their color. It can be easily done by seeing it…