Who deals with the radio electronics at home is usually very inquisitive. Radiator schemes and homemakes will help to find a new direction in creativity. Perhaps someone will find an original solution for one or another problem. Some homemakes use ready-made devices, connecting them in a different way. For others, it is necessary to fully create a circuit itself and produce the necessary adjustments.

One of the most simple homemade. More suitable for those who are just starting to make. If there is an old one, but the working cell phone with the player's power button, you can do, for example, a doorbell into your room. The advantages of such a call:

First you need to make sure that the selected phone is able to produce a sufficiently loud melody, after which it must be fully disassembled. Basically, the details are fastened with screws or brackets that are carefully rejected. When disassembling, it will be necessary to remember what is going on, so that later it was possible to gather everything.

The player's turning button is disappeared on the board, and two short wires are soldered instead. Then these wires are glued to the board so as not to tear the soldering. The phone is going. It remains to connect the phone with a call button through a two-housing wire.

Self-timers for cars

Modern cars are equipped with everything necessary. However, there are cases when self-made devices are simply needed. For example, something broke, gave a friend and the like. But the ability to create electronics with your own hands at home will be very useful.

The first thing you can intervene, without fearing to harm cars, is a battery. If the charging for the battery did not turn out at the desired moment, it can be quickly assembled independently. This will require:

Ideal a transformer from the lamp television. Therefore, those who are fond of self-made electronics, never throw out electrical appliances, in the hope that they will ever need. Unfortunately, transformers were used two species: with one and two coils. To charge the battery, 6 volts will go any, and for 12 volts only with two.

On wrapping paper of such a transformer, winding outlets are shown, voltage for each winding and operating current. To power the filaments of electronic lamps, a voltage is 6.3 V with a large current. The transformer can be converted by removing the extra secondary windings, or leave everything as it is. In this case, the primary and secondary windings are connected sequentially. Each primary is calculated on the voltage of 127 V, therefore, combining them, it is obtained by 220 V. Secondary connected sequentially to obtain at the output of 12.6 V.

Diodes must withstand current at least 10 A. For each diode, a radiator is required with an area of \u200b\u200bat least 25 square centimeters. They are connected to the diode bridge. Any electrical insulating plate is suitable for mounting. The primary chain includes a fuse by 0.5 A, in secondary - 10 A. The device does not tolerate short circuit, so polarity cannot be confused when connecting the battery.

Simple heaters

In the cold season, it is necessary to warm the engine. If the car costs where there is an electric current, this problem can be solved using a heat gun. For its manufacture, it will be necessary:

• asbestos pipe;
• nichrome wire;
• fan;
• switch.

The diameter of the asbestos pipe is selected by the size of the fan that will be used. The performance of the heater will depend on its power. The length of the pipe is the preference of each. You can collect the heating element and the fan in it, only the heater can be used. When choosing the last option, you will have to think about how to put the air flow to the heating element. This can be done, for example, by placing all components in a sealed case.

Nichrome wire is also selected on the fan. The more powerful the last, the larger diameter you can use nichrome. Wire twisted into the spiral and placed inside the pipe. For fastening, bolts are used, which are inserted into the pre-drilled holes in the pipe. The length of the spiral and their quantity is chosen by experienced. It is desirable that the spiral does not heat up with the fan when the fan does not heat up.

From the selection of the fan will depend on how voltage should be applied to the heater. When using the electric fan 220V, it will not be necessary to use an additional power supply.

The entire heater connects to the network through a cord with a fork, but it must have a switcher. It can be both just a toggle switch and automatic. The second option is more preferable, it allows you to protect the general network. For this, the transition current of the automaton must be less than the operation current of the room. The switch is still needed to quickly disconnect the heater in case of malfunctions, for example, if the fan does not work. This heater has its own minuses:

• harmfulness for the body from asbestos pipe;
• noise from the running fan;
• the smell of dust falling on the heated spiral;
• fire hazard.

Some problems can be solved by applying another homemade. Instead of an asbestos pipe, you can use a can of coffee. So that the helix does not close to the jar, it is attached to the textolite frame, which is fixed with glue. The cooler is used as a fan. For its power you will need to collect another electronic device - a small rectifier.

Homemade brings someone who is engaged in, not only satisfaction, but also benefits. With their help, you can save electricity, for example, shutting down the electrical appliances that forgot to disable. For this purpose, you can use the time relay.

The easiest way to create a setting time element is to use the charge time or discharge of the condenser through the resistor. Such a chain is included in the transistor database. The following details will be required for the scheme:

• electrolytic capacitor of high capacity;
• transistor type P-N-P;
• electromagnetic relay;
• diode;
• variable resistor;
• permanent resistors;
• dC source.

To begin with, it is necessary to determine which current will switch through the relay. If the load is very powerful, it will take a magnetic starter to connect it. The rebel of the starter can be connected through the relay. It is important that the relay contacts can work freely without sliding. On the selected relay, the transistor is selected, it is determined with what current and voltage it can work. You can navigate on CT973a.

The transistor base is connected through a restrictive resistor with a capacitor, which, in turn, is connected via a two-bearing switch. The free contact of the switch is connected via a minus resistor. This is necessary for the discharge of the capacitor. The resistor executes the role of the current limiter.

The condenser itself connects to the positive bus source bus through a variable resistor with greater resistance. Selecting the capacitor capacitance and resistance of the resistor, you can change the delay time interval. The relay coil is shunting the diode, which turns on in the opposite direction. In this scheme, 105 B CD is used. It closes the chain when de-energizing the relay, protecting the transistor from the breakdown.

The scheme works as follows. In the initial state, the transistor base is disconnected from the condenser, and the transistor is closed. When you turn on the switch, the base is connected to the discharged capacitor, the transistor opens and supplies the relay voltage. The relay is triggered, closes its contacts and delivers the load voltage.

The condenser begins to charge through a resistor connected to a positive power supply terminal. As the capacitor charges, the voltage on the base begins to grow. With a certain voltage value, the transistor closes, de-energizing the relay. The relay disables the load. So that the scheme earned again, you need to discharge the capacitor, for this switch the switch.

Since you decided to become a self-taught electrician, then surely after a short period of time you will want to make some kind of useful electrical appliance for the house, car or giving your own hands. At the same time, the homemade can be useful not only in everyday life, but also made for sale, for example,. In fact, the process of assembling simple devices at home does not represent anything complicated. You just need to be able to read the schemes and use the tool for radio amateurs.

As for the first moment, before proceeding to the manufacture of electronic homemakes with their own hands, you need to learn to read the electrical strokes. In this case, our good helper will be.

From tools for beginner electricians, you will be useful for a soldering iron, a set of screwdrivers, pliers and a multimeter. To build some popular electrical appliances, even a welding machine may be needed, but this is a rare case. By the way, in this section of the site, we even told the same welding machine.

Separate attention should be paid to the girlfriend, from which each electrician newcomers can make elementary electronic homemakes with their own hands. Most often, old domestic parts are used in the manufacture of simple and useful electrical appliances: transformers, amplifiers, wires, etc. In most cases, novice radio amateurs and electricians are enough to search all the necessary funds in the garage or a barn at the cottage.

When everything is ready - the tools are assembled, parts are found and minimal knowledge is obtained, you can proceed to the assembly of amateur electronic homemade at home. This is where, our small reference book will help you. Each granted instruction includes not only a detailed description of each of the stages of creating electrical appliances, but also accompanied by photo examples, schemes, as well as video lessons in which the entire manufacturing process is clearly shown. If you do not understand some point, you can clarify it under the recording in the comments. Our experts will try to advise you in a timely manner!

One of the common hobbies of lovers and professionals in the field of electronics is the design and manufacture of various homemade for the house. Electronic homemakes do not require large material and financial costs and can be performed at home, since working with electronics are, for the most part, "clean". The exception is only the manufacture of various cabinet parts and other mechanical nodes.

Useful electronic homemakes can be used in all areas of life, ranging from the kitchen and ending with the garage, where many are engaged in improving and repairing electronic car electronic devices.

Homemade in the kitchen

Kitchen home models from the electronics area can be an addition to existing accessories and accessories. Most popular among residents of apartments are used industrial and homemade electrosals.

Another common example of kitchen homemade, made by your hands of a home electrician - timers and automation of lighting on working surfaces, electric gas burners.

Important! The change in the design of some household appliances, especially gas devices, may cause "misunderstanding and rejection" of controlling organizations. In addition, it requires great accuracy and care.

Electronics in car

Homemade devices for the car are most widespread among the owners of domestic transport brands, which differ in the minimum number of additional features. Such schemes are used by speech:

• Sound signaling devices and turn on hand brakes;
• Rechargeable battery and generator signaling device.

More experienced radio amateurs are engaged in equipping their car parking sensors, electronic windows drives, automatic lighting sensors for controlling the nearest headlights.

Homemade for beginners

Most beginner radio amateurs are manufactured by the manufacture of structures that do not require high qualifications. Simple workshops can serve for a long time and not only for the sake of use, but also as a reminder of technical "mature" from a novice radio amateur to a professional.

For considerable lovers, many manufacturers produce ready-made sets for the design, which contain a circuit board and a set of elements. Such kits allow you to work out such skills:

• Reading fundamental and installation schemes;
• Right soldering;
• Setting and adjustment using the finished method.

Among the sets are very common electronic hours of various versions and the degree of complexity.

As a field of knowledge and experience, radio amateurs can design electronic toys, using schemes simpler or altered industrial structures under their wishes and capabilities.

Interesting ideas for crafts can be seen on the examples of the manufacture of radio-electronic crafts from the details of the computing equipment that came into disrete.

Homemade workshop

To independently designing radio-electronic devices, some minimum of tools, fixtures and measuring instruments are needed:

• Soldering iron;
• Boxes;
• Tweezers;
• Screwdriver Set;
• Passatia;
• Multifunctional tester (autometer).

On a note. Planning electronics with your own hands, should not be taken immediately for the complex structures and acquire an expensive tool.

Most radio amateurs began their way using the simplest soldering iron 220V 25-40W, and the most massive Soviet tester C-20 was used from measuring instruments in the home laboratory. In total, enough for classes with electricity, acquiring the necessary skills and experience.

A beginner radio amateur does not make sense to buy an expensive soldering station if there is no necessary experience with a conventional soldering iron. Moreover, the possibility of applying the station will not appear soon, but only after once a long time.

There is also no need for professional measuring equipment. The only serious device that may be needed even a novice fan is an oscilloscope. For those who are already understandable in electronics, the oscilloscope is one of the most sought-after measuring instruments.

As an autometer, you can successfully use inexpensive digital instruments of Chinese production. Having rich functionality, they have high measurement accuracy, ease of use and, important, have a built-in module for measuring transistor parameters.

Speaking about the homemade workshop in Selfkin, it is impossible not to mention the materials used for soldering. It is solder and flux. The most common shift is the POS-60 alloy, which has a low melting point and provides high reliability of soldering. Most soldiers used for soldering all kinds of devices is the analogues of the Alloy mentioned and can be replaced with success.

An ordinary rosin is used as a flux for soldering, but it is better to use its solution in ethyl alcohol. Rosin-based fluxes do not require removal from installation after work, since it is chemically neutral with most operating conditions, and the thin film of rosin, formed after evaporation of the solvent (alcohol), shows quite good protective properties.

Important! When soldering electronic components, in no case cannot use active fluxes. This is especially true for soldering acid (zinc chloride solution), since even under normal conditions, such a flux affects thin copper printed conductions.

To inform highly oxidized conclusions, it is better to use an active soft-free flux of LTI-120, which does not require flushing.

It is very convenient to work using solder, which includes a flux. Solder is made in the form of a thin tube, inside which is rosin.

For mounting the elements, bilateral foil fiberstolite bilateral fees are well suited, which are produced in a wide range.

Security measures

Electricity classes are associated with risk for health and even life, especially if electronics with their own hands is constructed with network nutrition. Homemade electrical devices should not use bipstranuous meals from the AC domestic network. In extreme cases, the setting of such devices should be made by connecting them to the network through a separation transformer with a transformation coefficient equal to one. The voltage at its output will correspond to the network, but at the same time reliable electroplating junction will be provided.

Making electronic homemakes with their own hands has gained popularity in the past century, when semiconductor devices appeared. With their help from the old equipment, it was possible to simply collect the devices necessary for everyday life. Today, repair and collecting equipment for home or giving, for a car or garage can also be solved at home.

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Homemade devices for home and summer cottages

Electrics for home and summer cottages using electricity power can make every electrician. Most devices are created on the basis of the factory components and requires only school knowledge about electricity.

Electroshevychnitsy

The electroshalvant can be both horizontal and vertical. In stores usually sell vertical, and they perfectly cope with their functions after some refinement.

To create a horizontal barbecue, a heating element and a frame that resembles a brass is required. It is possible to make a heating element from a ceramic tube and a nichrome spiral wound on it. The tube is fixed through an insulating material in a metal housing. For assembling the case, drawings will be required.

Skelut mangal

An equally interesting idea is a skewed brazing brazier with electrical drive to rotate shampoo. By adding an electric motor to a regular mangal, you can get a great device that will prepare kebabs offline. To organize a shape drive, you can use a motor from janitors, from a washing machine or any other by 12 volts. With the help of a pulleys and belt or toothed transmission system, the shaft rotation is transmitted to the skewers, and the meat slowly turns over coals.

Homemade Wi-Fi antenna

Such antenna will improve the quality of reception and the speed of Wi-Fi at your home. According to the reviews, after it is connected, the signal level rises from 5 to 27 Mbps.

For manufacture, it is necessary:

• metal sieve or a small colander;
• wi-Fi adapter (USB);
• USB cable;
• drill;
• epoxy resin;
• photo truck;
• plastic clamps.

Manufacturing process:

1. In the center of the sieve we drill a small hole (14 mm) and insert a metal pin to it to secure the adapter.
2. Insert the connector from the USB cable to the prepared hole and fix it with an epoxy resin. The USB connector after gluing should be strictly perpendicular to the sieve plane, then the device works more efficiently.
3. Then, with the help of two screeds, "ears" are made through which the cable is attached.
4. The product is fixed on the photographic report. Drills in the antenna hole with a diameter of 12 mm and clamp the nut.

Necessary materials Insert the pin in the drilled hole We glue a USB cable Fix cable Tripod Install an antenna using a tripod

Electric homemade garage

Consider several utility homemade projects for the garage.

Homemade chandelier

If you have weak light in the garage, the improvised chandelier will be very useful. For the manufacture of diving cartridge, a pair of angular cartridges, which are sold in a conventional shopping store are required.

Sequencing:

1. We are removed from the cartridges of the wire and fasten with a plastic screed. We get a cartridge into two lamps. It remains to be connected to the electrical network.
2. To do this, use the base from the luminescent lamp. Gently take the lamp, then we solder the wires from our design to the contacts of the base.
3. It is well insulated with them and attach the base of the cartridges.

The use of conventional light bulbs in such a design is undesirable - cartridges can fuse from heating.

LED device

An authentic LED lighting device can be another lighting option.

For its manufacture, you will need:

• old luminescent lamp;
• lED Strip Light;
• connecting wires.

Production sequence as follows:

1. On the case of the lamp is pasted into one or more rows of the LED tape.
2. Connecting wires are connected and the lamp switch is brutened.
3. The collected device is tested.

Dot welding machine

The desired device in the garage will be the homemade apparatus for point welding, the basis of which is the transformer from the old microwave. Prerequisite - the transformer must be worked to not rewind all windings.

The process of assembling the welder is quite simple:

1. A transformer is dismantled.
2. Secretly removed the secondary winding.
3. Two shunt are removed.
4. From thick wire (with a diameter of at least 10 mm), a secondary winding of two or three turns is performed.
5. From a copper rod with a diameter of more wires, electrodes for contact welding are manufactured.

Homemade point welding tool

Useful things do it yourself for fishing

Among the homemade can be found a lot of interesting ideas for use in hiking conditions, as well as on hunting and fishing.

Electronic alarm

An example is an electronic signaling device for fishing to a regular fishing rod or another tackle. A simple bunching device can be collected in just half an hour. It will take the old key chain and a filing and a strip of plastic with a thickness of 1-2 mm.

Animalizer assembly:

1. Keychain is attached to the rod.
2. The plastic strip passes on the fishing line and is inserted between the contacts of the keychain.

Now, when biting fish, the fish is drown, plastic crashes, the contacts will be closed and the key chain will work.

Underwater Camera for Winter Fishing

With the help of a homemade underwater chamber for winter fishing, you can see if there is a fish under the hole. And this simplifies the process of catching.

For the manufacture you will need:

• small chamber;
• hermetic box for the camera;
• small tv;
• car battery to power the camera;
• extension;
• inverter;
• lead for cargo;
• ultraviolet diodes for highlighting under the underwater shooting;
• superchalters, tape, sealant.

Assembly process:

1. Two holes make two holes at the top of the box. The extension cable is introduced through one. Through the second - the wire to which the camera is connected to the TV.
2. In the box, there are still a few holes in which the light bulbs are inserted. The wires from the light bulbs are soldered into one diagram (for example, with a parallel arrangement), which is connected to a power cable.
3. The holes are sealed with glue and tape for dense sealing.
4. The lead is melting and pour out small lumps of the elongated shape. Place them at the bottom of the box.
5. Customize the camera, connect to the cable. After that, it is neatly placed in boxing so that it has a clear direction forward and horizontally and passed a high-quality image. For stability, the camera around is plated with a soft material.
6. Torso is attached to the boxing (rope, belt), which will be lowered by the camera to the depth. For convenience, it is possible to connect it, and the camcorder cable with a TV with a TV to merge into one core, while gripping the tape.
7. Connect the power cable of the camcorder to the battery and test the device.

Homemade bait

A good bait for fishing can be made independently. This will be a device collected based on a simple multivibrator.

It will take:

• emitter of sound, for example, from children's toys;
• wires;
• a small plastic jar, for example, from under medicinal pills;
• electronic board;
• regulator with plastic rod;
• a piece of foam;
• batteries;
• loads for the float;
• volume control.

The bait assembly is carried out like this:

1. You need to solder the scheme and check it.
2. Two wiring soldered to the sound emitter. Then they are conducted on the body inside and connect to the board.
3. A regulator with a plastic rod is put in the lid from the jar.
4. From above on the board, a tight circle is installed from the foam, which separates the board from the battery.
5. In the lower part of the jars, weights are fixed so that the container is kept on the water as a float.
6. The regulator is set frequency and the sound changes.

Bait scheme - 1 Bait scheme - 2

Electronic homemakes for a car

Car enthusiasts create homemade with their own hands to improve the appearance and convenience of using the car.

Electrical Self-Protection

For the car perfectly suitable simple homemade electrical probe. It can show the presence in the voltage circuit of 12 volts. With it, it is checked with the serviceability of the relay, as well as light bulbs and other equipment. You can make such a device from a syringe and LEDs.

Assembly scheme:

1. Two LEDs sold out opposite conclusions (plus one to minus the other and vice versa).
2. To one of the steps through the resistance of 300 ohms is joined by steel probe. To another spike - contact for the batteries.
3. The design is inserted into the syringe so that the dipstick comes out of the hole for the needle. Most of the probe is isolated by PVC tube.
4. 4 LR44 batteries are inserted into the syringe so that one of the poles connects with the contact of the LEDs.
5. A contact from the flexible wire with a crocodile clamp is supplied to another pole.

On the video tells how to make a syringe tester. Shot by channel Ilyanov.

Light switch

Pretty simple in the manufacture of a smooth light shutdown scheme in the car's cabin. Such electronics suitable for any car. In parallel, a small board consisting of a capacitor and diodes sold out the terminals of the cabin lantern. The drop in electricity voltage will occur gradually and create the effect of a smoothly extinguished light.

Car subwoofer

To make a car subwoofer with your own hands, you must first purchase a speaker. From its dimensions, it is necessary to repel when calculating the size of the case.

The simplest and successful for the trunk shape of the subwoofer is a truncated pyramid with a slope like the rear seats.

LED fogthorn

With your own hands you can make automotive fog on LEDs.

For creativity it will take:

• two tenrative LEDs;
• 2 lenses from the old projector;
• gaskets from plastic pipes;
• lM317T microcircuits;
• resistors.

Assembly instructions DIY:

1. LEDs are installed on pre-prepared aluminum radiators.
2. The design of headlights, lenses from projectors, gaskets and diodes on radiators is collected.
3. The fog is powered through current stabilizers on LM317T chips and resistors.

Automotive carrying

Very comfortable car carrying is obtained from a computer USB lamp. It is compact and connect the device to any place in the car wiring.

Production scheme:

1. From the USB plug, delete contacts.
2. In the plug housing we connect the wires of the lamp and car clips "Crocodile".
3. For fastening in the right place (even horizontally), a magnet is put on the plug.

So. Life has developed so that I have a house in a village with gas heating. There is no live there. The house is used as a cottage. A couple of winters stupidly left the boiler with the minimum coolant temperature.
But here two minuses.
1. Gas bills are simply astronomical.
2. If there is a need to come to the house among winter, the temperature in the house is around 12 degrees.
Therefore, I had to invent something.
Immediately clarify. Availability of Wi-Fi access point in the relay zone is required. But, I think, if you are freezing, you can put a connected mobile phone next to the sensor, and distribute the signal from the phone.

Connecting the 4 contact motion sensor with your own diagram

Diagram Connecting the motion sensor with your own hands

It happens that you need to install in the country, or in the house lighting which will work when driving Or a person or anyone else.

With this feature, the motion sensor is well cope with this function, which was ordered by me with AliExpress. The reference to which will be below. Connecting shine Through the motion sensor, when the person passes through its vision field, the light turns on, 1 minute is lit. And turns off again.

In this article I tell how to connect such a sensor if it does not have 3 contacts, and 4 like it.

Power supply from the energy-saving light bulb do it yourself

When you need to get 12 volts for LED tape, or even for some purposes, there is an option to make such a power supply with your own hands.

Fan speed regulator with his own hands

This regulator allows you to adjust smoothly variable resistor fan rotation speed.

The flow regulator circuit of the floor fan came out simplest. To get into the housing from the old Nokia phone charging. There were terminals from the usual electric socket.

Installation is quite dense, but it was due to the size of the case ..

Lighting for plants with their own hands

Lighting for plants with their own hands

There is a problem in the lack of lighting plants, colors or seedlings, and the need arises artificial light for them, and here such a light we can provide on LEDs do it yourself.

Brightness regulator do it yourself

Brightness regulator do it yourself

It all started with the fact that after I installed houses halogen lamps on lighting. When you turn on that are not rarely burned. Sometimes even 1 light bulb per day. Therefore, I decided to make a smooth inclusion of lighting based on the brightness regulator with your own hands, and I apply a diagram of the brightness controller.

Thermostat for refrigerator do it yourself

Thermostat for refrigerator do it yourself

It all started with the fact that returned from work and opening the refrigerator found warmth there. The rotation of the thermostat controller did not help - the cold did not appear. Therefore, I decided not to buy a new block, which is also rare, and make the electronic thermostat itself on attiny85. With the original thermostat, the difference is that the temperature sensor lies on the shelf, and not hidden in the wall. In addition, 2 LEDs appeared - they signal that the unit is turned on or the temperature above the upper threshold.

Soil moisture sensor with their own hands

Soil moisture sensor with their own hands

This device can be used for automatic watering in greenhouses, floral greenhouses, flowerbeds and indoor plants. Below is a diagram for which you can make the simplest sensor (detector) of humidity (or dryness) of the soil with your own hands. When soil drying, voltage is supplied, the current force is up to 90mA, which is quite enough, turn on the relay.

It is also suitable for automatic inclusion of drip irrigation, to avoid excess moisture.

Luminescent lamp power circuit

Fluorescent lamp power circuit.

Often, when eating energy-saving lamps, the power circuit burns in it, and not the lamp itself. As known, LDS. With burned downstairs, it is necessary to feed the straightened current of the network using a non-valve start-up device. In this case, the filament of the lamps are shunting the jumper and which is supplied to the high voltage to turn on the lamp. An instantaneous cold ignition of a lamp occurs, a sharp increase in the voltage on it, when starting without preheating electrodes. In this article we will look at start LDS lamps do it yourself.

USB keyboard for tablet

USB keyboard for tablet

Somehow suddenly, I took something and understood to buy a new keyboard for my PC. The desire of novelty will not overseas. Changed the color of the background with white on the black, and the color of the letters from the red - black on white. A week later, the desire of novelty was naturally gone as water in the sand (old friend is better than new two) and the new thing was sent to the wardrobe for storage - until better times. And here they came to her, did not even assume that it would happen so fast. And therefore the name would even better come true that there is, but how to connect a USB keyboard to the tablet.