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.

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Vehicle Tracking System becomes very important now days, especially in case of stolen vehicles. If you have GPS system installed in your vehicle, you can track you Vehicle Location, and its helps police to track the Stolen Vehicles. Previously we have built similar project in which Location coordinates of Vehicle are sent on Cell Phone, check here ‘Arduino based Vehicle…

Almost every electronic hobbyist must have faced a scenario where he or she must measure the frequency of a signal generated by a clock or a counter, or a timer.  We can use an oscilloscope to do the job, but not all of us can afford an oscilloscope. We can buy equipment for measuring the frequency, but all these devices are costly and are not for everyone. With that in…

Arduino is an open-source development platform for engineers and hobbyists to develop electronics projects in an easy way. It consists of both a physical programmable development board (based on AVR series of microcontrollers) and a piece of software or IDE which runs on your computer and used to write and upload the code to the…

Wireless communication between Electronic devices and modules is very important, to make them ‘Fit’ in the World of Internet of Things. HTTP protocol and HTML language have made it possible to transfer the Data anywhere in the world, over the web. We have already covered some projects which use Wi-Fi with Arduino, have a look at them to Getting started :

Sending Email…

As discussed earlier, Arduino Due is an ARM controller based board designed for electronic engineers and hobbyists. This DUE board can be used for making CNC machines, 3D printers, robotic arms etc. All these projects have a common feature that is Position Control. Any of these projects needs accuracy towards their position. Accurate positions in these machines can be…

Arduino Due is an ARM controller based board designed for electronic engineers and hobbyists. ARM architecture is very influential in modern electronics, we use them everywhere like our mobiles, iPods and computers etc.  If someone wants to design industrial systems it must on ARM controllers. ARM controllers are very important because of their agility.

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ARDUINO DUE is an ARM controller based board designed for electronic Engineers and Hobbyists. ARM architecture is very influential in modern electronics. We are using the ARM architecture based controllers everywhere. For example we are using ARM controllers in our mobiles, iPods and computers etc.  If someone wants to design industrial systems, it must be on ARM…

In last tutorial, we explained controlling a Robot using Wi-Fi and Arduino, and in this article we are with our next IOT Based Project- RGB LED Flasher using Wi-Fi. Here we have used Arduino and ESP8266 Wi-Fi Module to control the colors of RGB LED, through a Android Phone, over the Wi-Fi.

 

In this RGB…

There are many types of Robots, from the simple ones like a Toy car to the advanced ones like industrial Robots. We have already covered many types of Robots using different technologies, have a look at them:

Arduino Line Follower Robot Line Follower Robot using 8051 Microcontroller Line Follower Robot using Arduino DTMF Controlled Robot using Arduino Cell Phone…

When we come across circuit boards which are previously designed or we take out one from old TV or computer, in attempt to repair it. And sometimes we need to know the capacitance of particular capacitor in the board to eliminate the fault. Then we face a problem in getting the exact value of capacitor from the board especially if it is a Surface Mount Device. We can buy…

We are moving towards the World of Internet of Things (IoT). This technology plays a very important role in the Electronics and Embedded system. Sending an Email from any Microcontroller or Embedded system is very basic thing, which is required in IoT. So in this article, we will learn “How to send an Email using Wi-Fi and Arduino”.

For sending…

We all are familiar with the word ‘Automation’, where the human interaction is minimal and things can be controlled automatically or remotely. Home automation is very popular and demanding concept in the field of Electronics, and we are also making our best efforts to make this concept easily understandable and manageable as Electronics Projects. We have previously developed…