how-to

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.

Development, coding, hacking background image, Easy Email Verification

WordPress Multisite experience and blog setup

Nenadsky
2024-08-182024-08-18
Development

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.

ESP32 Microcontroller: Master the Basics

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!

Arduino microcontroller and guides and video tutorials

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.

DIY Dual Laptop Monitor From Old Laptop Display

DIY Laptop Upgrade: Dual Screen Setup

Nenadsky
2023-06-092024-07-04
Thoughts

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.

KDE Plasma on Fedora: Minimal Setup

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!

Arch Linux installation, guides, reviews

Arch Install Made Easy: Archinstall Guide

Nenadsky
2023-01-252024-07-01
Linux

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.

Arch Linux Install: ArchFi Makes it Easy

Nenadsky
2022-10-172024-07-01
Linux

It’s been a while since my last guide for installing ArchLinux article that covered the classic installation method (reading the documentation and typing command by command until you get to a working system). The following is a new one that will describe how to install this popular Linux distribution, using the Archfi installation script, I mentioned earlier. This text will be part of a trilogy that will consist of: Archfi script, Archinstal script and finally their comparison. Somehow, it just happened that a few days ago, a new version of the Archfi script was released after less than a year and a half, so let’s see how it all works (and it works 🙂 ).

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.