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Arduino microcontroller and guides and video tutorials

Controlling Lightbulb: A Beginner’s Guide to Using Relays

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.

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ESP32 Microcontroller Guide, Tutorials

ESP32 Microcontroller: Master the Basics

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!

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Arduino microcontroller and guides and video tutorials

DIY Arduino Night Light: Easy Step-by-Step Project

Time flows, and as it flows, I managed to force myself to make this video tutorial for Arduino. This time the theme is a circuit that turns the night light on or off based on the brightness of the room. This is a nice thing, especially when there are small children in the house, so it is necessary for the light to be turned on at all times. Of course, there is also a modification of this circuit, so that it can be used for, say, street lighting. The positive aspects of such a project can be easily seen and enumerated.

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Cyber security, attempt of online fraud

Attempted Fraud or Missed Opportunity?

A few months ago, I had an interesting correspondence with a person via Linkedin, where the person in question “processed” me in order to agree to online cooperation. The proposal was like this: Permission to use my computer remotely, with an assigned IP address, then to allow access to accounts on LinkedIn and Upwork. For my “torment”, I would have a 10% share in what my associate (hereinafter I will call him Gliša) is doing through the Internet. It was freelancing as a developer. I can’t help but wonder, as the title of the text says, is this an attempt at fraud, or a missed business opportunity?

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Hacking and cracking windows passwords

Resetting forgotten Windows password – chntpw

I come back with the story again, and this time I go to the dark side … a little. Why the dark side, you ask? Part of my job is to use Windows OS and I can’t escape that. So I consider Windows the dark side because I know there is something better and of course I use that something every day. The other side of the dark side story is about computer ethics, but I had no other way out of the situation. I had to use Linux and the chntpw tool to allow myself access to one of the user accounts on one of computers at work.

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Arch Linux installation, guides, reviews

By The Way, I Use Arch Linux With Ease!

It’s been a long time since I became a GNU / Linux user, which I’m proud of! I tried it out of curiosity , and now I can’t imagine everyday life without it. It’s one of those things that gets under your skin and there’s no going back! Profesionally or when they make me I use the other OS, but the love and affection to Linux is stronger than anything. Probably that’s why I write about it and always emphasize it. I’ve used a number of distributions so far, some just a few minutes, while others for years. The distro I use the longest and to whom I like to return after an experiment is ArchLinux, so I can afford to say that famous sentence – By the way, I use Arch Linux!

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