Free technical library. Articles from Radiomir magazine, 2003

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Alphabetical list articles with annotations, from journals published in 2003 in the journal Radiomir:

1Ц21П=УН9/27-1.3

EEPROM series AT93CX6 from ATMEL

RS-trigger - simulator

Auto indicator with one lamp

Automatic load switching

Automatic switch with time relay

Automatic mains switch

Automatic intercom

Answering machine-gatekeeper

Phone Message Auto Recording Adapter

Mobile Phone Batteries

Zener diode analogue on KP501

Universal LED analogue

Caller ID to block access to intercity

Barrier LC oscillator with OB

Running lights on 8 channels

Safety first

Non-contact loudspeaker protection

Non-contact presence sensor

Shadowless Shade

Bipolar silicon NPN transistor KT8261A

Bi-phase generator with adjustable pause

Power supply -60 V

Control box for packaging machine

BP on rolls

Fans for cooling JAMICON electronic equipment

Video power splitters for cable TV

Virtual arming

Turning on the light bulb with two switches

Turning on the fluorescent lamp in the network

Inclusion of low-voltage thyristors in the network

The revival of the thyristor regulator

Electrician's volt/ohmmeter

Eight-channel remote control

Selecting the required copper wire diameter

Discharge lighting - battery powered

Harmonic crystal oscillators

Modulated RF noise generator

Audio Range Generators

Dual tone generators and receivers

Voice relay

HFC on piezo filters

TV remote control Horizon 51ТЦ412-I

[1] [2] [3] [4] [5] [6] [7] [8]

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Latest news of science and technology, new electronics:

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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 ... >>

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Random news from the Archive

Bolt Wireless Protocol for Keyboards and Mice 02.09.2021

Logitech has announced a protocol called Bolt, designed to securely connect various devices to a computer via wireless communication.

The technology is based on the Bluetooth LE low energy standard. At the same time, data exchange can be carried out both via Bluetooth and via a small RF transceiver with a USB interface.

The Bolt protocol is focused primarily on the business sphere, and therefore provides a high level of protection for the transmitted information. When using a Bluetooth connection for compatible mice, the security level is declared Bluetooth Security Mode 1 / Security Level 2, for keyboards - Security Mode 1 / Security Level 3. If a USB receiver is used, it is said to support Bluetooth Security Mode 1 / Security Level 4.

With one Bolt transceiver, up to six peripheral devices can be connected to a personal computer. Declared compatible with operating systems Windows, macOS, iOS, iPadOS, Linux, Chrome OS and Android.

The new MX Master Series For Business keyboards and mice, which are expected to be released at the end of September, will be compatible with the Bolt protocol. In addition, a new modification of the MX Anywhere 3 compact mouse with Bolt technology will be released.

The Logitech Bolt protocol, thanks to its low power consumption, will provide long battery life for computer peripherals. For example, the keyboard will be able to function up to two years without the need to replace batteries. The cost of the Bolt transceiver is approximately $15.

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