500+ Arduino Projects with Code - Circuit Diagrams & Tutorials

Browse CircuitDigest’s curated collection of Arduino projects for beginners and advanced makers. Discover practical Arduino project ideas with source code, circuit diagrams, and clear step-by-step explanations. This library of 500+ Arduino-based projects helps you quickly find the right Arduino application for electronics, automation, IoT, robotics, and embedded systems.

Explore Arduino Project Categories

There are many types of security systems used all over the world and Digital Code Lock is one of them. We have already covered…

I started this project in order to get rid of various remotes at my home and build something single which could incorporate…

In this project I am going to share a LED Scroll Bar as shown in the above picture. Ten LED strips can flash in…

This Arduino based Real time clock is a digital clock to display real time using a RTC IC DS1307 which works on I2C…

Humidity and Temperature are very common parameters for measuring at many places like farm, green house, medical, industries…

Vehicle Tracking System becomes very important now days, especially in case of stolen vehicles. If you have GPS system…

Almost every electronic hobbyist must have faced a scenario where he or she must measure the frequency of a signal generated by…

Arduino is an open-source development platform for engineers and hobbyists to develop electronics projects in an easy…

Wireless communication between Electronic devices and modules is very important, to make them ‘Fit’ in the World of Internet of…

As discussed earlier, Arduino Due is an ARM controller based board designed for electronic engineers and hobbyists. This DUE…

Arduino Due is an ARM controller based board designed for electronic engineers and hobbyists. ARM architecture is very…

ARDUINO DUE is an ARM controller based board designed for electronic Engineers and Hobbyists. ARM architecture is very…