Electronics. Page 36

Hi all. I want to tell you about my recent “craft,” namely a clock with gas-discharge indicators (GDI). Gas discharge indicators have long since sunk into oblivion; personally, even the “newest” ones are older than me. GRI was used mainly in watches and

In this master class I will be converting a floodlight with a motion sensor into a spotlight with a remote control. The motion sensor is certainly good, but in some places it is not as useful as remote activation. I am making this lantern

SIM800L V2.0 GSM/GPRS is a quad-band GSM/GPRS module compatible with Arduino. The module is used to implement GSM (calls and SMS) and GPRS functions. The advantage of this module is the TTL interface, which has a voltage of 5V, which allows

I made this solar oven for a school project and here are my results and information on how to build it step by step.A solar oven, unlike a conventional oven, is heated using solar thermal energy. Solar ovens can be used for

Hello! This is my first instruction! We are all surrounded by electrical appliances with different specifications. Most of them operate directly from a 220 V AC network. But what if you come up with some non-standard device, or

This is an instruction (guide) on how to make a cheap, convenient and portable machine for spot welding metal from a damaged microwave oven. Please note that this is dangerous, as indicated by the sign on the

Each of us has long been accustomed to using all kinds of gadgets that make life easier: mobile phones, all kinds of smart phones and tablets, etc... In this article we will replace your usual watering can with a technological device for watering flowers, which will

I would like to share with you the performance of a clock using IV-9 lamps in a block from a TU-154 aircraft. On the body there is the inscription ITV-4, apparently this unit is called that! In its native place, this was a watch made using strict logic. The person who ordered from me

The 555 series microcircuit (NE555, SE555, NA555, SA555 and their analogues) is an affordable and cheap timer - a device for generating pulses with certain time characteristics.Based on these microcircuits, many

Digital multimeters are very popular among radio amateurs and professionals due to their versatility. To power them, as a rule, a nine-volt Krona battery is used, which has noticeable self-discharge, low capacity and

Greetings, dear friends. Finally, I got around to recording a lesson on working with the voice module. I see you liked my homemade product with voice control and many have already begun to wonder when a practical lesson on working with

Greetings, dear friends! Today I will tell you about my next homemade product. This is a hood with automatic control. No, of course, I didn’t make the hood itself - I bought a ready-made one, but I organized the automatic switching on the basis of ready-made ones

Hello dear friends. Today the subject of my review will be these inexpensive and high-quality headphones. Let's start with the fact that I needed high-quality headphones for my computer. By quality of headphones I mean first of all quality

Hi all! Today we will get acquainted with such a simple device called a wattmeter. The device has a built-in design and can be built into the device or operated directly without installation. The wattmeter is designed to measure

Good day everyone, dear friends! In this video we will look at a radio controlled socket or remote controlled socket. This device is designed for remote switching of power supply to almost any household appliance.

Hello friends. Today I want to tell you and show you my homemade product that uses voice control. It's actually a voice controlled on/off switch. The peculiarity of this homemade product is that this device may not

Hi all. Today I will tell you about a regulator (thermostat) for domestic use. This is a complete device, not some kind of board that still needs to be powered with something and know how to connect. Therefore, any person can cope with it, without knowledge

Hello friends. The other day I received this thing called a Wi-Fi USB antenna. Here in a box like this. In a nutshell, this is the same USB Wi-Fi adapter for a computer, only with a directional antenna and a wire. But compared to

Hi all! Today I received another parcel from China, which contained this universal temperature controller that I had previously ordered. I especially liked this model, as it has clear advantages over other Chinese models,

Many people have heard about the plasma ball, but not everyone wants to spend money on buying it. Radio amateurs know that you can make it yourself.Alas, for beginner radio amateurs, the diagrams on the Internet are quite complex and incomprehensible. This article will help

Hello dear visitors to the Do It Yourself site! Our editors are constantly looking for new crafts and new authors of articles. At the moment there is a large shortage in the category of electronics, exciting chemistry, computer homemade products and

Brovin's kacher is a demonstration invention, very similar to a Tesla coil, but made according to a completely different design. Kacher generates a voltage of about 1000 thousand volts, can light fluorescent lamps and gases in flasks, and also produces sparks

Once in childhood, for my father, I assembled a primitive pulse charger with capacitor decoupling in the primary circuit of the transformer (4 µF x 400 V). It was called pulsed because the charge was carried out by a modified semi-sine wave,

Often, when walking through consumer electronics stores, I noticed such a device as a humidifier and never saw a dehumidifier. Someone will now say that almost any air conditioner has such a function as an air dehumidifier.