Arduino

Discover Arduino microcontrollers with in-depth explanations and video tutorials. Explore basic and advanced projects to step into the world of IoT.

From Old Computer to CNC Machine: My DIY Story with Arduino

Nenadsky
2025-04-242025-04-24
Arduino

The Initial Spark: Why I Decided to Build My Own CNC Machine

A love of technology and a desire to create something practical and functional from what others consider waste — that was my motivation to start my first DIY CNC project. With a modest budget, but with a lot of enthusiasm, I decided to build a miniature CNC machine using an Arduino controller and recycled parts from an old computer.

Arduino microcontroller and guides and video tutorials

Controlling Lightbulb: A Beginner’s Guide to Using Relays

Nenadsky
2024-12-122024-12-11
Arduino

Introduction to Relays and Arduino

Relays are electrically operated switches that allow low-voltage circuits to control higher-voltage devices. In the context of using Arduino, a popular microcontroller, relays serve as a crucial interface between the low voltage output of the Arduino and the high voltage required by lightbulbs. This capability is essential for projects that involve home automation or any applications requiring control over high-power devices while ensuring user safety and device integrity.

DIY Arduino Project: Room Occupancy Counter with 7-Segment Display

Nenadsky
2024-08-312024-08-31
Arduino

In this post, you’ll learn how to use a shift register (IC 74HC595) and a 7-segment display (model 5161AS) to track people entering and leaving a room. With these components and a few buttons, you’ll build a system that displays the current number of people in the room. Previously, I covered using the 7-segment display and shift register separately; now, I’ll show you how to combine them and add some cool effects to the display.

Learn Arduino with RGB Traffic Lights

Nenadsky
2024-01-022024-07-04
Arduino

This project, although simple, contains several elements essential for working with Arduino and in general with microcontrollers. In addition to working with the RGB diode, the project involves using the analogWrite function to work with (certain) digital pins. Using this function implies the use of PWM signals, and also includes usage of user functions.

Arduino Project: Access Granted Indicator

Nenadsky
2023-10-192024-07-04
Arduino

In the age of classic cameras and darkrooms, photography involved developing images in light-proof rooms using chemical mixtures. To ensure successful image development, preventing light from entering the darkroom was crucial. This project involves developing an electronic circuit to control the operation of two LEDs, indicating the darkroom’s availability.

Build an Arduino Ultrasonic Ranging Device

Nenadsky
2022-09-302024-06-30
Arduino

Measuring the distance between two objects is important when talking about the organization and planning of space. This project makes it possible to do it in a simple, easy and relatively inexpensive way using an Arduino and an ultrasonic sensor HC-SR04. The only limitation imposed by the application of this sensor is the maximum range of 4m. For the needs of a hobby project in the household, it can get the job done, and quite well.

Arduino Dice Roller: Random Number Display on LCD 1602

Nenadsky
2022-08-052024-06-30
Arduino

Although this assigment raises some ethical issues that I disagree with, I will deal with solving and explaining this problem. The assigment is to design a game of chance for elementary school students (assigment says so), where a randomly chosen number from 1 to 6 will be printed on the LCD display – in simpler terms, it is a simulation of throwing a dice.

Simple Arduino Advertisement Display Project

Nenadsky
2022-07-192024-06-30
Arduino

Summer has started and hiding from the heat, a new video tutorial arrives. The project of creating a simple advertisement using the MAX7219 integrated circuit – LED matrix driver, LED matrix module and Arduino. This task can be solved in a simple way by using external libraries for working with the MAX7219 and the LED matrix in a few lines of code. As a result, an attractive text animation is obtained. It is possible to connect several LED matrix modules, the complete impression would be better.