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

With the advent of technology, our electronic gadgets and appliances are becoming smaller and smaller with more functional and…

Time is vital in today's society, and when it comes to certain electronics, timing is crucial; just like us, they…

When we are talking about air pollution, dust and smoke are one of the many reasons for air pollution. Not only that,…

Have you ever wondered how the antitheft system in a supermarket works? Or how do automatic…

DHT11 Module features a temperature & humidity sensor complex with a calibrated digital signal…

The MPU6050 is a very popular accelerometer gyroscope chip that has six axes sense with a 16…

The damages that can be done by fire are devastating. To prevent causalities or damages, it…

Nowadays, natural gasses are everywhere. They are easy to transport and provide energy for various tasks in both…

In today's world, time is everything, and when it comes to specific electronics, timing is…

A color sensor is a simple, and easy-to-use device that can be used to identify the color of an object and after…

In one of our basic projects, we have shown you how you can interface a MAX30102 Pulse Oximeter and Heart Rates Sensor…

Sensors now play an essential role in the safety and security of a wide range of flats, houses, and businesses by…