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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In this tutorial we are going to interface a 4x4 (16 key) keypad with ARDUINO UNO. We all know keypad is one of the most…

In this tutorial you will learn to make direct connection between your Arduino and Matlab, so that you can program your Arduino…

In this project we are using the concept of ADC (Analog to Digital Conversion) in ARDUINO UNO. We are going to use a Hall…

In this tutorial we are going to design a system to read the ID of RFID cards. RFID stands for Radio Frequency Identification.…

In this tutorial we are going to control a servo motor by ARDUINO UNO. Servo Motors are used where there is a need for accurate…

In present time almost all the people are familiar with robots. Robots play a very important role in human life. Robots…

This LED DIMMER is an Arduino Uno based PWM (Pulse Width Modulation) circuit developed to get variable…

In ARDUINO we have 20 I/O pins, so we can program 20 pins of UNO to be used as either input or output. Although there are more…

In this arduino based project, we are going to build a temperature-controlled fan using Arduino. With this circuit,…

Robots are playing an important role in automation across all the sectors like construction, military, medical, manufacturing,…

Humidity and temperature are common parameters to measure environmental conditions. In this Arduino based project we are going…

ARDUINO UNO is an ATMEGA controller based board designed for electronic engineers and hobbyists. Arduino based program…