Electronics for home, gardening, hobby. Schemes, articles of the Free Technical Library

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Electronics for home, gardening, hobby. Schemes, articles, descriptions

Free library / Schemes of radio-electronic and electrical devices

Electronics for home, gardening, hobby

We recommend reading in our Free Technical Library:

Car battery current indicator

Section Car. Batteries, chargers. Proper operation of a car battery is the key to a long service life and normal operation of the entire power supply system. Monitoring the battery charge-discharge mode allows you to take the necessary preventive measures in time, as well as monitor the health of the generator, starter, and electrical wiring. The indicator measures the voltage drop on the conductor connecting the negative terminal of the battery to the car body. This conductor is included in the resistive measuring bridge R1-R5, which allows you to remove bipolar signals from the bridge and amplify their op-amp with a unipolar supply. Logarithmic diodes VD1-VD1 are included in the negative feedback circuit of the op amp DA4, which expand the limits of the measured current, allowing you to measure even the current consumed by the starter when starting the engine ... >>

USB thermometer on microcontroller

Section Microcontrollers. The ATmega8 was chosen as the microcontroller. Digital temperature sensor: DS18B20, which has temperature measurement limits from -55 to +125 degrees Celsius ... >>

Installation of microcircuits of the K155 series by winding the wire

Section Ham Radio Technologies. The prototyping of amateur radio devices is usually associated with repeated soldering of parts. This negatively affects the state of the microcircuit pins, and the process of dismantling the microcircuits is very laborious. To facilitate the prototyping process and ensure the safety of microcircuits and other details, you can use the installation of a wire winding method. ... >>

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Articles on electronics for the home, household plots, hobbies

Articles on devices for the home, household plots, hobbies; schemes of devices for the home, household plots, hobbies; descriptions of devices for home, household plots, hobbies: 161 articles

All articles on consumer electronics

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

Cold hands, hot head 23.02.2000

The National Institute of Applied Sciences (France) has developed an ultra-precise thermometer, the sensor of which is glued to the temple and measures the temperature of the brain. An interesting result has already been obtained with the help of this unique device.

It turns out that when doing mental calculations, the temperature of the brain rises by a few hundredths of a degree, and the temperature of the skin drops by 0,3 degrees Celsius. This is due to the fact that with increased mental activity, the vessels of the skin narrow.

As a result, blood flow through the skin is reduced, it cools less and arrives at the brain a little warmer.

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