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

July 23, 2019

Morse code is a system of communication to encode any character in two different durations of signals called Dots and Dashes.…

July 23, 2019

Today most of the phones come with gesture control feature to open or close any app, start music, attend calls etc. This is a…

July 16, 2019

Today any average car consists of around 60 to 100 sensor units in it for sensing and exchanging information. With car…

July 9, 2019

TOF or Time of flight is a commonly used method to measure the distance of distant objects by various distance measurement…

July 4, 2019

When debugging an electronics circuit or testing a new hardware design, often times I tend to check if the components on the…

July 3, 2019

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

July 1, 2019

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

June 28, 2019

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

June 24, 2019

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

June 20, 2019

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

June 18, 2019

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

June 17, 2019

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…