Not so long ago, about a year ago, I finally received my long-awaited package. Flipper Zero. For those who don't know, Flipper Zero is a small device that allows you to engage in all sorts of fun activities in life. The fun starts with the Sub-1 GHz antenna and continues with micro-scripts for PC. If you're interested, please read on.
Hello, Habr!
I've been putting off writing this article for a long time, but the time has come.
There are quite a few materials on the internet about how to run macOS on regular, IBM-compatible PCs. Their problem is exactly the same as with Wine, which I also wrote my own article about - they are too... vague on the details of how to create an installation media and what to do after installation.
In this article, I will be following the guide from Dortania. There is a Russian version, but it's always older than the most current one, so I will use the original. I will also be taking some screenshots and links from there.
Before we begin, I'd like to enlighten those who are not aware of what a Hackintosh is.
A Hackintosh is the process of installing macOS on regular PCs. What's the difficulty?
All MacBooks use their own hardware (at least now, in 2025). They used to use different processors - in classic Macintoshes they used processors from Motorola. Later models featured processors from IBM PowerPC (during this period they were called PowerMacs). And in the early 2000s, Apple switched to Intel processors. It was during this period that the system we are most interested in appeared - OSX, later renamed to macOS.
In this article, we will look at 3 ways to set up a VPN connection with VLESS and Reality.
VLESS is a modern, privacy-oriented data transfer protocol, often called VLESS VPN, although strictly speaking, we will be discussing the installation of a proxy with the VLESS protocol based on an XRay server with Reality.
Let's start with the simplest and most universal option, which requires no technical knowledge.
Сервис по генерации музыки Sferoom AI - эдакий прототип и двойник Suno. Испытав его, я остаюсь при своём - выбираю Suno.
Тут не выведение на чистую воду и не обличение, а исследование того, насколько удобно Suno вмонтирован в Sferoom
Почему я сравниваю именно эти две подписки? Потому что под капотом у Sferoom всё тот же знакомый нелицензионный движок Suno v4.5+, предоставляемый через посредство kie.ai - нелицензионного поставщика API Suno.
В феврале 2026 выбранный мной дистрибьютор песен и музыки Sferoom добавил на свой сайт возможность генерировать свои треки с помощью встроенного ИИ. То есть сейчас на одном русскоязычном Интернет-сайте можно и сделать песню, и подготовить публикацию на стриминги, и собрать статистику прослушиваний.
Мог ли я проигнорировать этот факт? Конечно, нет.
Должен ли я докопаться до самой сути? Конечно, да!
В статье разбираем функции ИИ-генератора песен и музыки Sferoom AI и считаем плюсы и минусы.
Hello everyone, this is Denis Weber.
One day, I was once again looking for a 3d model on stock for my project and came across a neural network that can create high-quality 3d models in just a couple of clicks. And I wondered if it would be possible to create something like a music video using only the capabilities of existing neural networks?
If you prefer the video format, I will leave a link to the video at the end of the post.
Hi Everyone.
Recently I got Asus E200H laptop, which I would like to use as a portable computer to work with a high-precision equipment.
Within the scope of the article we will perform the experiment about the upgrade of the default 32 GB eMMC capacitor to 256 GB and will test it.
Have a nice reading!
Nestled amongst the serene fjords and picturesque landscapes of Norway, Oslo stands as a testament to the harmonious blend of modernity and tradition. This vibrant capital city, with its rich history dating back over a thousand years, offers visitors an unparalleled experience that seamlessly integrates culture, innovation, and the breathtaking beauty of nature, all under the ever-changing skies of its varied weather.
Hellow my name is Dmitry. Once I bought "Orange PI i96", but unfortunately producer not update it firmvere very long. Last firmwere kernel version is 3.10.62 but kernel current at time this article writing (russian version) is 6.5.1. And so I decide build my own firmware from scratch, and do it from sourse completely.
Switzerland: the very name conjures up images of pristine alpine landscapes, picturesque villages, and a sense of tranquility that seems to permeate the very air you breathe. It's a country that's often synonymous with beauty, precision, and adventure. Whether you're a nature enthusiast, a history buff, or simply seeking to indulge in some of the finest chocolates and cheeses the world has to offer, Switzerland has something for everyone. So, if you're planning a trip to this enchanting land, here's a curated list of must-visit destinations and experiences that will make your journey truly unforgettable.
Have you ever wondered how difficult it is to turn something you have in mind into a real product? For example, would you be surprised to see someone controlling a huge iron robot spider that can turn on the spot and walk obediently to his pilot's directions?
To realize his idea, this persistent designer overcame many obstacles: he invented the mechanism himself, mastered the skills of aluminum welding, laser cutting, 3D printing, created a reduced prototype and built one. His project stands out even among the most interesting self-made devices you've read about.
Please sit back and relax while reading this rather lengthy article. During the scrolling through, you will learn about some remarkable inventor and his resourcefulness, irrepressible life energy and practical advice to help you realize your dreams, and someone, perhaps, will be pushed to tell about his own project.
Currently I am investigating firmware development for STM32 microcontrollers and I would like to share with you my experience for doing it in Qt Creator IDE.
There are a lot of IDEs, which are used for firmware development of STM32. Some of them, being quite comfortable, have restrictions for trial license. For example, the one of the most known IDE, IAR Embedded, suggests either a limited amount of product usage time (30 days) or the limited firmware size of 32 MB, which is not too much.
Within this scope of the publication, we investigate the method of setting up an environment that allows one to develop the full value of the STM32 firmware in Qt Creator.
 ChatGPT was not used in writing this article. The animated image uses the webp file format instead of gif. |
In this article, you will find a complete description of how to make a Wi-Fi internet radio receiver from a router that can play mp3 streams from internet radio stations. It is also possible to switch between two internet radio stations. We will use OpenWRT firmware installed on the router to create a Wi-Fi internet radio. It is possible to complete this project without using a soldering iron. All the components can be placed inside the router to create a finished device — a Wi-Fi internet radio. |
In this article I will talk about my attempt to create flexible, compact and beautiful modular prototyping framework
The sound of rock music, in particular of hard rock and heavy metal, is largely based on a specially distorted guitar sound, for which electronic “distortion” devices, tube amplifiers in “overloaded” mode, computers with appropriate software and digital processors are used. increasingly using neural network algorithms.
The distorted sound of electric guitars began to gain popularity around the 1960s. Since that time, the sound of overloaded tube amplifiers, connected to powerful dedicated guitar speakers with large dedicated speakers, has been considered the benchmark in rock music. But tube amplifiers were relatively expensive and inconvenient to operate. Therefore, semiconductor distortion devices were developed.
At that time, the electrical circuitry of distortion devices was relatively simple and the signal output from their output only vaguely resembled the sound of an overloaded tube amplifier. Nevertheless, it was still somewhat similar to the “sound of a lamp” and this provided a powerful incentive for designers of analog semiconductor distortion circuits to continue their research, complicate circuits and propose new circuit solutions. The heyday of analog solid-state distortion was around 1995-2010. The most popular were electrical circuit diagrams like those shown in the figure below.
LC ladder component values can have different values for the same transfer function. Published tables have only one set. Why?
There is a list of well-known electronics design tools for Android which can be found in every review for the last 10 years: “Electrodoc”, “Every Circuit”, “Droid Tesla”, “Electronics Toolbox”, “RF & Microwave Toolbox” and so on. Also, there is a lot of trash on the market that turns finding a good tool into a quest.
This short review is about an unknown but cool tool “Circuit Calculator” working on Android devices and intended for professional electronics designers.
In this video, we are making a cable for connecting a quadrature encoder to a Servosila brushless motor controller, and and then running a servo motor in Direct Drive mode. To make the cable we are using a cable assembly kit that can be purchased from the internet store. Alternatively, the components for the cable can be bought in other places. The part numbers are given in the controller's datasheet.
The cable assembly kit consists of a connector and a set of wires with pre-crimped socket blades. If you have a crimper tool, you can also attach the socket blades to wires by yourself.
Lets open a datasheet document that comes with the brushless motor controller. Note that each connector has its first pin clearly marked with a "1" sign. Conventionally, the numbering of pins is done in such a way that there are rows of odd-numbered and even-numbered pins.
The quadrature encoder's electrical interface has 5 wires in total. Positions of the pins of each of the wires are given in the table. The socket blades need to be pushed into the connector until you feel a "click". The blades lock into the connector's sockets. Optionally, primarily for cosmetic reasons, you may want to add a heat-shrink tubing to your cable.
The brushless motor controllers come in two distinct forms, a circular and a rectangular one. Both models are identical in terms of capabilities, features, firmware, and external electrical connectors.
The connector has a locking mechanism that keeps it in place. I soldered a mating connector to the other side of the cable - a connector that my brushless motor needs. Note that your motor will likely require a different connector, or no connector at all. It is always a good idea to test an end-to-end integrity of the cable and its connectors. Lets buzz the wires using a multimeter. The cable is ready.
SEPIC-Ćuk split-rail converter can be used to make positive and negative supplies from a single input voltage for relatively well-matched loads like operational amplifiers.
Transient models are time consuming. Average models reduce modeling time drastically.
The PWM switch average models for current- and voltage-mode are described in details in Christophe Basso’s book “Switch-Mode Power Supplies, Second Edition: SPICE Simulations and Practical Designs”. Using of these models for SEPIC and Ćuk converters is also shown.
This text shows how to use the PWM switch average model to design a split-rail SEPIC-Ćuk converter.
Knowing parameters of small-signal control-to-output transfer functions makes it easier for engineers to design compensation networks of DC/DC converters. The equations for SEPIC can be found in different works and Application Notes, but there are differences. A work has been done to solve this problem.
Simplified design equations for SEPIC with Current Mode control (CM) in Continuous Conduction Mode (CCM) suitable for practical design of compensation networks are shown.
In this video, we will look at how to connect brushless motor controllers to a Linux computer. Specifically, we will use a computer running Debian. The same steps would work for Ubuntu Linux and other Linux distributions derived from Debian.
I've got a small sensorless brushless motor, and a bigger brushless motor with a built-in absolute encoder. Lets look at how to control those from my Debian Linux computer. Servosila brushless motor controllers come in several form factors with either a circular or a rectangular shape. The controllers come with a set of connectors for motors and encoders as well as for USB or CANbus networks.
The controllers can be powered by a power supply unit or by a battery. To spice up my setup, I am going to use a battery to power the controllers and thus their motors. The controllers need 7 to 60 volts DC of voltage input. If I connect the battery, the controllers get powered up. The small LED lights tells us that the controllers are happy with the power supply.
We need to connect the brushless motor controllers to the Linux computer. There are two ways to do that - via CANbus or via USB. Lets look at the USB option first. A regular USB cable is used. Only one of the controllers needs to be connected to a computer or a PLC.
Next, we need to build an internal CANbus network between the controllers. We are going to use a CANbus cross-cable to interconnect the controllers. Each controller comes with two identical CANbus ports that help chain multiple controllers together in a network. If one of the interconnected brushless motor controllers is connected to a computer via USB, then that particular controller becomes a USB-to-CANbus gateway for the rest of the network. Up to 16 controllers can be connected this way via a single USB cable to the same control computer or a PLC. The limit is due to finite throughput of the USB interface.
