As it is known, a horizontal infrared counter essentially counts not people but interruptions of the horizontal infrared beam caused by their passage. The height of the…
The writing of this article was prompted by two reasons. Firstly, due to initially established reasons, a trivial task turned into an interesting and exciting adventure.…
About 10 years ago, I had the idea to write a game in Java, since I use this language at work. It was a kind of challenge. I wanted to try myself, see if it was possible.…
Surely everyone played with remote-controlled cars in childhood. In 2024, I had the idea to assemble my own car. As they say, "The first 40 years of a boy's life are…
Imagine that inside your devices there are monsters with tentacles that like to short-circuit circuits and burn components. Can you imagine? This is not fiction, they…
I have two beloved sisters who would very much like to have a temperature, humidity, and carbon dioxide sensor at home. The ready-made solutions available on the market…
With the advent of handheld consoles on Android, Windows, and SteamOS, and a controller for the phone, there is a desire to play PC games on these devices. The simplest…
In the morning, looking at the can of freshener in the toilet, I thought, why not make another smart thing? Of course, it became an air freshener, but not just automatic,…
Once, while traveling through remote Vietnamese villages, I asked a girl to squeeze me a glass of sugarcane juice. To explain, I used Google Translate. From her eyes,…
Hello, tekkix! My name is Askhat, I work at Yandex Infrastructure — an engineering team that creates fundamental technologies for Yandex. Sometimes an engineer's trained…
This project — A simple way to use cryptocurrencies to control devices.
What if a dictaphone is made into an acoustic locator?
Hello, tekkix!
Let's try to explain the features of the appearance of variable EMF and electric current. The article is written with an emphasis on simplicity and clarity, without unnecessary…
Summer 2024, not much time has passed since my WSPR beacon project reached the release version. But tests, where are the tests? After all, the device, no matter how useful…
In this article, we will talk about a Class D amplifier based on the TPA3255 chip from Texas Instruments. The amplifier is made according to the parallel-bridge connection…
Nothing lifts the mood like a prolonged anaerobic workout. But it is important not to overdo it. At our age, a workout can both improve and worsen well-being. Therefore,…
United Kingdom, 1907. Returning from the front of the Anglo-Boer War, Sir Robert Stephenson Smyth Baden-Powell founded the Scout movement. The goal was simple and ambitious:…
