how-to

Controlling Lightbulb: A Beginner’s Guide to Using Relays

Nenadsky
2024-12-122024-12-11
Arduino

Arduino microcontroller and guides and video tutorials

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.

Nenadsky
2024-11-102024-11-10
Linux

Introduction to Fedora 41

Fedora 41 represents the last version of one of the most popular Linux distributions, earning praise from experts and users around the world. This version brings significant improvements over previous versions, making it an excellent choice for users who want to take full advantage of a modern environment. Performance and stability are key priorities, and the new version reveals many improvements in system settings and hardware support.

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.

Nenadsky
2024-08-182024-08-18
Development

Development, coding, hacking background image, Easy Email Verification

WordPress Multisite – the ability of WordPress to have multiple sites for the same installation immediately attracted me. I ran a blog in two languages using a WordPress plugin. The plugin offered basic translation of blog content, while advanced options were available in the paid version. By advanced options I mean URLs, tags and meta tags that mean a lot to SEO. Using the multisite feature eliminates the use of plugins and allows a greater degree of freedom in optimizing your WordPress site. A little more about migration to WordPress multisite follows in the rest of the text.

Nenadsky
2024-02-082024-07-04
ESP32

Alright, let’s cut to the chase. You’ve heard the buzz about the ESP32 microcontroller, and you’re itching to get your hands dirty with it, right? Well, you’re in luck! We’re about to embark on a geeky adventure through the circuit basics, breaking down the nitty-gritty of this tiny yet mighty powerhouse. We’ll take a gander at what makes the ESP32 tick, its pinout that’s as vast as the ocean, and why it’s the go-to chip for hobbyists and pros alike. So buckle up, ’cause this ride’s going to be electrifying!

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.

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.

Nenadsky
2023-06-092024-07-04
Thoughts

DIY Dual Laptop Monitor From Old Laptop Display

In today’s tech-driven world, laptops have become indispensable. They offer numerous benefits like portability and compactness. However, they also come with certain drawbacks. One major disadvantage is the limited battery life, and another significant issue is the small screen size. When you’re accustomed to working on a 27-inch desktop monitor, a laptop screen can feel quite cramped.

Nenadsky
2023-02-082024-07-01
Linux

I have been using Fedora Linux for some time now. I switched from Arch Linux in search of some more “peaceful” distribution. However, I’ve been using Arch for too long to accept the KDE spin of Fedora that comes with a bunch of bloatware by default. I searched and of course found a tutorial for a minimal installation of the KDE Plasma environment on Fedora. I wrote about it almost a year ago, and now a new version is coming!

Nenadsky
2023-01-252024-07-01
Linux

Arch Linux installation, guides, reviews

Instructions for installing ArchLinux using the installation script ArchFi (and then ArchDi) is the first in a series of texts dedicated to the comparison of different ways of installing the ArchLinux distribution. This text is also an installation guide, but using the officially supported script – Archinstall. I will refrain from giving too many impressions, that remains for the third and last text in this area. I’ll just say that it’s a much simpler way to install ArchLinux and a minimal desktop environment offered from the list.

how-to

Controlling Lightbulb: A Beginner’s Guide to Using Relays

Introduction to Relays and Arduino

Fedora 41 and Minimal KDE Plasma guide

Introduction to Fedora 41

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

WordPress Multisite experience and blog setup

ESP32 Microcontroller: Master the Basics

Learn Arduino with RGB Traffic Lights

Arduino Project: Access Granted Indicator

DIY Laptop Upgrade: Dual Screen Setup

KDE Plasma on Fedora: Minimal Setup

Arch Install Made Easy: Archinstall Guide