Technology 2024, November

If your mobile balance goes into negative territory, it is highly likely that the number will be blocked. If, when you try to call, you hear "Number blocked" again, look for a way to solve this problem. Instructions Step 1 The most common reason for blocking an account is calls that were not paid on time

Due to the variety of services provided by mobile operators, you can easily monitor the phone of any subscriber. It is enough to activate the corresponding service via a mobile device or use it on the website of the service company. Instructions Step 1 The MTS operator allows you to monitor the subscriber's phone by his number within the framework of the Locator service

In this article, we will look at how to write to and read from flash memory using an Arduino using the 25L8005 microcircuit as an example. Necessary - flash memory chip with SPI support; - an adapter for memory or a panel with zero gain (ZIF-panel)

Do you want your child to start learning electronics and programming, but don't know where to start? At what age can you start learning? I hasten to reassure you: even at 5-7 years old it is not too early if he can read Russian. Fortunately, there are now such programming languages that it is not necessary to write the code, and your child will put the program like a puzzle

The article describes an electronic device such as a relay, explains how it works, and also discusses connecting a module with a two-channel DC switching relay to an Arduino using the example of controlling LEDs. Necessary - Module with relay

This article discusses how to control a digital potentiometer using an Arduino, as well as what areas of application this device can have. Let's use a ready-made module that costs less than $ 1. Necessary - Digital potentiometer X9C

A Hall effect sensor is an electrical device that detects changes in a magnetic field. Such sensors are used today in many areas of life. This article discusses connecting a module with a 49E Hall sensor to the Arduino Nano board and reading readings from the sensor

Let's connect two computers over the air with a cheap radio transmitter and receiver and transmit some meaningful data, such as files. Necessary - a computer (or two computers), - FS1000A radio transmitter and XY-MK-5V radio receiver (or similar), - two converters USB-UART (or computer COM port), - connecting wires

The DHT17 temperature and humidity sensor is a popular and cheap sensor that can be used over a fairly wide range of temperatures and relative humidity. Let's see how to connect it to the Arduino and how to read data from it. Necessary - Arduino

We bring to your attention a method of making a weather station for a house or summer cottage. We will take the Arduino board and a set of sensors as a basis: temperature, humidity, pressure and a carbon dioxide sensor. The data will be displayed on the LCD display, and power will be supplied from a power supply for a mobile phone or batteries

The oscilloscope manufacturer DSO138 does not leave its users and periodically updates the software ("firmware") for their devices. Let's see what steps you need to go through to update the firmware of the DSO138 oscilloscope. Necessary - oscilloscope DSO138

In one of the previous articles, we already briefly touched on the use of a shift register, in particular, the 74HC595. Let's take a closer look at the capabilities and procedure for working with this microcircuit. Necessary - Arduino

Let's consider the connection of the GY-273 module with the Honeywell HMC5883L three-axis digital compass. This microcircuit can be used for magnetometric measurements, in navigation, if a high measurement accuracy is not required (with an error of 1 … 2 degrees and the possibility of calibration)

As you know, there are three main types of electric motors: collector, stepper and servo drives. In this article, we will look at connecting a collector motor to an Arduino using a motor driver based on the L9110S microcircuit or similar. Necessary - Arduino

Virtual reality technology is very popular now, but so far it is quite expensive and not available to everyone. Everyone has probably heard of Oculus. In this article, you will learn how to make 3D virtual reality glasses yourself almost free of charge and very simply, literally in an hour

Sometimes it becomes necessary to disassemble the laptop yourself. To do this correctly, you need to thoroughly understand the intricacies of the process. Each laptop model will have its own characteristics. A step-by-step guide to disassembling a Samsung NP355V4C laptop

The presence of two SIM-cards opens access to two networks in one mobile phone, which allows you to use different services of each of the two networks. Without a special device, you can only use one network. At the same time, the advantages of having two SIM cards in one phone outweigh the disadvantages

Dual-SIM phones have extended functionality when working with mobile networks. This means that the purchased phone will operate under 2 SIM control, using them in accordance with the user's requirements. Such devices can be successfully used for both conversations and surfing the Internet

When buying a new phone model, each manufacturer is ready to provide most of the conveniences in one device: mp3, video, Bluetooth, Flash-card, Edge, etc. Most of all, a modern person is interested in supporting a flash-carrier in a mobile phone

There is often a situation in which you need to urgently use a smartphone. By default, the gadget is always nearby, but where exactly: on a chair, on a table, or even under a bed, it is not immediately possible to recognize. The response of gadgets to clapping hands has long and successfully been used in the "

A large number of users are convinced that the device needs to be rebooted from time to time in order for the smartphone to function properly and to extend the battery life. The rest of the phone owners believe that the reboot does not affect the overall performance of the gadget in any way, so there is no need to reboot it

Despite the fact that the smartphone market is oversaturated with new models, not every user can afford to have a flagship device. The price of the devices, named by the manufacturer as the best in their characteristics from the entire line, is not always adequate to the declared parameters and is more dependent on marketing schemes and manipulations

Modern smartphones cannot boast of durability, but in the process of use only three components suffer: the battery, the display and the case. The rest of the smartphone components are ready for stable operation, unless the phone is used for water procedures

The owners of modern smartphones have to deal with overheating of their devices on a daily basis. Resource-intensive games and applications only contribute to the heating of gadgets, and despite all modern technologies, the compact case does not allow to accommodate an active cooling system

The technology used for contactless payment has successfully supplemented the rich arsenal of capabilities of modern smartphones. More and more buyers leave their wallets at home and boldly go shopping at the nearest supermarket, choosing their phone as a means of payment

Modern smartphones that allow using several SIM cards at the same time make it possible to pass verification by phone number more than once. It is not uncommon for one person to have several accounts in each of the social networks. Apart from social services, multiple profiles and in text messengers are considered quite normal

Not knowing a foreign language ceases to be a barrier to understanding it. As always, modern technologies come to the rescue. In any travel or tourist trip, the smartphone camera will help with the translation of the inscriptions on the plates and signs

For several years now, Chinese smartphones have been actively storming the Russian electronics market. Attractive in their characteristics and tempting with an affordable price, devices from the Middle Kingdom still do not leave an unambiguous opinion among the ordinary user

Thousands of mobile applications are available for Android smartphone users. Not always the amount of built-in memory allows you to install and try to test a game weighing several gigabytes. The modest characteristics of many gadgets, as well as the early version of the operating system, are a powerful argument for installing an Android emulator on a desktop computer

Even in the recent past, owners of push-button telephones could appreciate the functionality of the T9 auto-correct text. Screenshots of funny and ridiculous correspondence are still found on social networks. Be that as it may, the technology of automatic text replacement has successfully migrated to smartphones, but the user is not always so necessary

The presence of a smartphone has long been a necessary attribute of a modern person's life. Before leaving the house, it is already customary to check the presence of this gadget in your pocket or purse, along with your keys and wallet. Autonomy The time that a smartphone is able to operate on battery power without recharging

The topic of protecting your smartphone with an antivirus is relevant to this day. Already when buying a mobile device, the seller - the consultant will consider it necessary to talk about the danger of infection of the gadget. His confident, expert view of mobile security will make him agree to install a paid antivirus application

A graphic key is a security parameter for devices running on the Android operating system, designed to ensure the safety of the user's personal data and protect files from prying eyes. There are several simple methods to remove protection in case you have forgotten the pattern of the set pattern or the digital password code

In our time, the purchase of goods on credit has become quite common. This is quite convenient, especially when buying large household appliances, because it is quite difficult for an average buyer to pay such an amount at a time. It is much easier to divide the price into parts and pay it within a year, two years

Buying a variety of equipment on credit is becoming an increasingly common procedure. After all, in this way, you can buy the right computer or phone without waiting for your salary. But is such a purchase justified? Should I borrow a phone?

The telephone is not a luxury, but a necessary means of communication. If you are limited in money, the most optimal way to buy a mobile phone would be to purchase it on credit. Necessary - access to the Internet; - the passport

A graphic key is an additional means of protecting a mobile device, which allows you to restrict access to it by unauthorized persons. However, it sometimes happens that the owner himself forgets this password. There is no need to panic in this case:

The battery of a smartphone or tablet always runs out at the wrong time, and not in all cases there is an outlet nearby to charge the gadget. For such situations, there are portable chargers with which you can charge your battery anywhere. How do they differ from each other, and how to choose a portable charger?

Microsoft has released a new operating system Windows 10. Users of previous versions - Windows 7 and Windows 8.1 - can upgrade the platform for free during the first year after the release. Necessary - a computer with Windows 7 or Windows 8

A new smartphone is almost always fast and stable. But over time, the system is loaded with service information, programs and even viruses, which is why even a powerful 4-core flagship can work slowly. There are several ways to improve the performance of the machine