Microcontrollers. Schemes, articles of the Free Technical Library

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Microcontrollers. Schemes, articles, descriptions

Free library / Schemes of radio-electronic and electrical devices

Microcontrollers

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VHF antenna

VHF Antenna Section. Many VHF stations in Poland use an antenna designed by DL7KM. The antenna shown in Fig. 1, I observed in the field. With its relative compactness, it showed results no worse than the nine-element SP6LB. It is powered by a 50 ... 60 ohm cable. The vibrator can be made from a tube, angle or tape. It is fixed on insulating racks. In fact, it is recommended to make it from copper and solder all the joints, although this is not a prerequisite ... >>

Anti-theft device

Section Security and car alarm. Unlike well-known industrial and amateur anti-theft devices, this design does not have a single mechanical contact and a hidden toggle switch, it is simple, reliable and durable. It is an electronic mass switch. As practice suggests, for the purpose of fire safety, even with short-term parking of the car, it is advisable to disconnect the on-board network from the battery ... >>

P3U in sports equipment

Section Nodes of amateur radio equipment. Read-only memory devices in integrated design (IC ROM), which are just getting a residence permit in amateur radio practice, can significantly simplify the designed equipment, and often expand its capabilities. On the basis of ROM, various software control and monitoring devices, separate functional units of digital devices, etc. can be created. ... >>

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Articles on microcontrollers

Articles on microcontrollers; circuits on microcontrollers; descriptions of microcontrollers: 133 articles

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

ARCHOS launches ultra-compact audio player with 3 GB hard drive 13.06.2005

Archos, a consumer electronics manufacturer and leader in portable digital entertainment solutions, has unveiled the Gmini XS 100, an ultra-portable audio player.

The Archos Gmini XS 100 is a compact 3 GB hard drive-based audio player that can hold up to 1500 songs and supports the Microsoft PlaysForSure platform. The dimensions of the device are 91 x 43 x 14 mm, and the weight is 80 grams. Also Gmini XS 100 has a 1,5-inch screen with a bluish backlight.

Other features include playback of MP3, WAV and WMA (including protected) music files, a fully Russified menu with support for Cyrillic in file names and MP9 tags, support for the PlaysForSure platform, file synchronization with Windows Media Player 10 or XNUMX.

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