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

An AC (Air Conditioner) which was once considered to be a luxury item and was only to be found in big hotels, movie halls,…

We all know of the wired doorbell systems which require wires and suitable outlets for it to work satisfactorily. As the wired…

Are you fed up with manually logging in to your windows or social media accounts? Wouldn’t it be nice to have a pocket-sized…

Arduino has been a boon for people who are not from the electronics background to build stuff easily. It has been a great…

As the winter season approaches, comes the festival of lights in INDIA. Yes, we are talking about Diwali, known for…

According to National Crime Records Bureau (NCRB), it is estimated that more than 1.2 lakh deaths have been caused because of…

 Today, we are going to explore the TMC2208, a popular driver module used for controlling 2-phase bipolar…

 Today, we are goin to learn how we can program our Arduino boards using Python. Long back, we wrote a…

 Face recognition is becoming increasingly popular these days. There are numerous project ideas available…

Today we are going to learn about one of the affordable DC Motor Driver modules that is used to drive small…

Today, we are going to explore the TMC2208, a popular driver module used for controlling 2-phase bipolar stepper motors…

As you may know many of our everyday appliances or devices such as smartphones, home automation systems, smart speakers…