sfrolov.livejournal.com
RegisteredWebsite sfrolov.livejournal.com: technical experiments and hobbies of an engineer sfrolov.livejournal.com is a personal blog of engineer and electronics enthusiast Sergei...
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Website Description
Website sfrolov.livejournal.com: technical experiments and hobbies of an engineer
sfrolov.livejournal.com is a personal blog of engineer and electronics enthusiast Sergei Frolov, where detailed descriptions of his original technical developments, retro projects and interesting finds from the world of electronics are published.
What is the blog about?
The site is a diary of technical creativity, dedicated to the practical use of electronics in everyday life. Sergey Frolov shares his projects that combine functionality, aesthetics and a deep understanding of the principles of device operation. The main topic is not just the assembly of circuits, but full-fledged autonomous devices with well-thought-out logic and indication.
Key areas of the blog:
- Autonomous multifunctional watch with liquid crystal and electronic ink display. The devices display the time, date, day of the week, moon phases, sunrise and sunset times, as well as a built-in Orthodox calendar with automatic calculation of holidays and fasts.
- Homemade stands for checking the multiplication tables based on IN-14 gas-discharge indicators. The project demonstrates a simple but effective feedback system: “equal”, “greater” or “less” lamps light up depending on the correctness of the answer.
- Retro electronics: adapters for connecting modern USB keyboards to old AGAT-type computers, as well as reviews and operation of rare radios, such as the “Pokhodny RP-301” - a monophonic receiver on the KXA058 chip, powered by a Krona battery.
- Museum of Microprocessors - a collection of links to well-known sites dedicated to the history of the development of microprocessor technology in Russia and abroad.
- Aesthetics and lighting: the author shares his personal experience in choosing the color temperature of LEDs, preferring warm white light instead of blue light, especially at night.
Blog style features
The site is designed in the typical LiveJournal style: minimalistic interface, emphasis on text descriptions, comments, sections “Archive”, “Photos”, “Video”. The author does not use complex graphics or advertising, focusing solely on content. Each post contains a detailed description of the project, operating principle, internal components (including photos), as well as links to firmware and documentation.
The blog is distinguished by a high degree of detail and a professional approach. All projects are the result of independent development, using modern microcontrollers (for example, STM32F401CDU6) and retro components. Sergey Frolov actively participates in retro computer communities and discusses his developments in Telegram channels.
Who is the creator?
The author of the blog is Sergey Frolov (sfrolov), an engineer passionate about technical experiments. He does not hide his identity, shares personal observations and practical solutions. There are no signs of sale on the site, domain, hosting or temporary stub. All elements of the site function correctly and meet the expectations from a personal blog on LiveJournal.
Contact information:
- Author's name: Sergey Frolov
- Nickname on LiveJournal: sfrolov
- Community: t.me/retrocomps
Frequently asked questions
What kind of website is sfrolov.livejournal.com?
This is a personal blog of engineer Sergei Frolov, dedicated to his technical projects: watches, test benches, retro electronics and microprocessor museums.
What devices is the author developing?
The author creates multifunctional stand-alone clocks with the Orthodox calendar, homemade stands for checking the multiplication tables, adapters for old AGAT computers, and also studies rare radios such as RP-301.
Where can I find firmware and documentation?
The site contains links to firmware for STM32F401CDU6 and documentation for the MC7004A keyboard. Access to materials is provided directly through text descriptions in posts.
Why is warm white light used instead of blue?
The author finds blue backlight unpleasant, especially at night, so he replaces it with warm white light to improve comfort when using devices.
What topics are discussed in the blog?
The main topics are electronics, retro computers, engineering solutions, digital display, microprocessor history and the practical implementation of technical ideas.
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Domain Name: LIVEJOURNAL.COM
Registrar: Regional Network Information Center, JSC dba RU-CENTER
Domain Status: client transfer prohibited
Creation Date: 1999-04-15T04:00:00Z
Registry Expiry Date: 2027-04-15T04:00:00Z
Updated Date: 2026-03-15T21:13:42Z
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REGISTRAR Contact: Regional Network Information Center, JSC dba RU-CENTER
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