Electronic device diagram repeller for rats. How to make a mouse repeller at home. Complete electrical circuit of crust and mice

Mals are one of the main threats among underground pest rodents for horticultural activities. Rodents are mainly struggling with mechanical and chemical methods. But recently, electronic devices have appeared, allowing you to fight with rodents with more humane methods, running by the radiated disturbing sounds of moles and other rodents from garden sites.

There are many types of electronic devices on sale, but they are expensive and not always justify expectations. Make sure the efficiency of the purchased electronic device for scaring the mole can only after its experienced operation.

The proposed version of the electronic device for scaring the mole is assembled along the original electrical circuit, tested in operation for two years and showed high performance efficiency. In the scheme, in contrast to industrial samples, the ability to change the frequency of the emitted signal is easily implemented, which eliminates the addictive mole to the radiated sound.

Appearance

A device for scaring moles made of primary materials, consumes little electricity and does not require instruments to configure. The hull for the placement of the electronic filling of the repeller served as a metal bank from cat feed.

In the photo of the bank, in which the scheme of the mole scaretcher has worked for two summer season, half swapped into the ground.

Electrical circuit and principle of operation

The rodent scaper (moles) is assembled, the following electrical concept and consists of only two simple logical chips, a transistor and several passive elements posted on the printed circuit board. A distinctive feature of the proposed scheme is the small consumption of electricity (a set of three-finger elements AA with a capacity of 1 a * h enough for the whole season), due to the radiation of the audio signal with a frequency of about 480 Hz for two seconds with a frequency of times in 32 seconds. This mode of operation of the repeller in addition to more effectively affects the moles and increases the time of addictive rodents to the sound.

Structurally, the scheme consists of a clock generator collected on the elements of the DD1.1 and DD1.2 of the generating frequency of about 480 Hz, the frequency divider on the DD2 chip, the logical auditor of the signals to DD1.3, the key transistor VT1 and the beam emitter BA1.

The frequency of the clock generator of rodent repeller is determined by the rates of resistance R1 and C1 condenser. Reducing or increasing the value of R1 or C1 can accordingly increase or decrease the frequency of the radiated sound signal.

With the generator, the sound signal of the rectangular shape without changing the frequency through the logical element DD1.3 and the current-limiting resistor R4 is fed to the VT1 transistor included in the key mode. In the silence mode, the voltage is supplied close to zero and the transistor is closed. In this mode, the current consumption of rodent repel is 0.1 mA. In the radiation mode of the audio signal, the current increases to 22 mA. A simple calculation shows that when using batteries with a capacity of 1 A * H, the mobbo repeller will work 9000 hours or 375 days.

From the clock generator, the signal also enters the counting input (10 output) of the DD2 frequency divider. According to a positive signal drop at the output 9 of the counter, the logical zero is replaced by a logical unit. In order to ensure the radiation of the audio signal with a period of 32 seconds, the logical unit is fed from the conclusions 15, 1, 2 and 3 through diodes to 12 output of the logical element DD1.3, locking it. As soon as simultaneously on withdraws 15, 1, 2 and 3 DD2, a logical zero will appear, DD1.3 will skip the signal from the clock generator to the VT1 and VA1 transistor database starts to emit sound.

The chain C2 and R2 serves to set the output voltages of the DD2 chip in the zero state. When the supply voltage is applied to the circuit, the C2 capacitor begins to charge and the supply voltage appears on its lower output, which is fed to the R chip. When the charging process is over, the voltage in the lower output drops to zero and will no longer affect the operation of the DD2 chip. The R3 resistor is loaded for VD1-VD4 diodes to be where the current and to eliminate the filing in the absence of voltage to output 12 chip DD1.3. C3 serves to suppress noise arising from transition in chips.

Design and device

I came up with the design, made and checked in practice the efficiency of the four devices for scaring the mole, my buddy, a greater amateur to grow vegetables on its own site Ivanov Gennady Vasilyevich. The design is very simple in manufacturing and practically does not require financial costs. One of the devices, to scare up Krotov Gennady Vasilyevich, kindly provided me to prepare this article.

The case for the device of the mole scaretcher served as a metal bank from dry food for cats, in which all the details are placed. The bank is hermetically closed with a plastic lid and excludes water from rain into it and when watering the garden. For the manufacture of the mole scarer, any metal tightly closing the bank of the appropriate size is suitable, for example, coffee.

A telephone capquil TC-67-NT is used as the emitter of sound waves in the repeal, which is widely used in stationary telephone tubes. This is a simple and reliable emitter and can be taken from any old phone. Capxyl radiates the sound in the frequency range from 300 to 3400 Hz, which is just necessary, has a module of complete electrical resistance at a frequency of 1000 Hz, 260 ± 52 ohms. And most importantly, the capsulus allowed it to easily solve the problem of the sealing of the case and at the same time repeatedly increase the efficiency of the mole scary due to its original installation in the case.

The cap is unscrewed with the cap, the metal membrane is removed (in the photo on the left), and it is simply attached to the bottom of the banks (in the photo on the right). In order for the capsule to move along the bottom of the banks, at one point its body was recorded silicone. You can come up with another method of fastening. The fact is that a permanent magnet is built in Kapsul, and the caps attached to the metal is primarily confined and keeps well. You only need to limit its horizontal movement. With this fastening of the sound emitter is no longer a membrane, but the bank itself. Due to the loose pricing to the bottom of the Capsul's banks during operation, vibrates, and the published sound is obtained very unpleasant, hoarse with large nonlinear distortions. For the mole scary, such a sound turned out to be very suitable.

In the bank from the inside around the perimeter, at an altitude, which ensures the placement of three batteries and the printed circuit board of the moles, solder three corners, and the round plate (second bottom) is installed on any material with a hole in the center for wires.

Metal stationery clips are taken as a material for corners, but you can make corners from any material that rolls tin-lead soldier, for example, copper wire, steel stripes, etc. The length of the corners is selected based on the size of the flat septum - the second bottom, and its size is due to the neck diameter of the jar.

In the second day, the switcher of the mole of moles is placed, to disable batteries when transporting the device or in case of non-use. But the switch can not be installed, but connect the batteries using the connector.

Since the conditions for operating the mole of moles are hard, the temperature can range from zero to 50 ° C, and to simplify the design, the batteries are connected to the device wires and are connected by the soldering method. To exclude from the closure of the metal walls of the case, the batteries are wrapped with an insulating tape.

To exclude the closure of tracks and the elements of the printed circuit board, it is placed in a plastic bag, which is tied with a thread at the vehicle outlet.

The batteries and the printed fee are laid on the second bottom of the housing, it remains to close the lid and the mobrot repeller is ready for use for its intended purpose. It is enough to burn it into the ground to the depth, eliminating the flow of water streams along the ground during the rain and watering the side of the lid, as it is still not quite sealed. It is enough to bury up to the level of half the banks. The indicator of the displayed state of the repeller in the scheme is not provided for the exclusion of unreasonable energy spending, as when the repeller makes a sound, then it is heard even at a significant distance from it.

Printed circuit board

Due to the lack of the possibility of manufacturing the printed circuit board of moles using chemical technology, a mechanical method for removing sections of copper foil from a foil fibercker was used.

The location of radio components on the closer circuit board is shown in the photo below.

The appearance of the printed circuit board for the manufacture of photochemical method and the location of the radio elements is presented in the photo below.

The board can be made of a fiberglass of 1.5 mm thick on one side.

Site visitor who has introduced himself to San Sanych, kindly provided his version of the printing board of rodents, divorced in a graphic editor to wiring the Sprint-Layout 3.0R printed circuit boards, for which he thanks a lot.

Details

Instead of telephone caps, BA1 type TK-67-NT, you can apply similar capsules of the type TA-56M, TA-56, tone-2 or TG-7 with a winding resistance of about 60 ohms. Diodes, capacitors and resistors are suitable for any type.

Diodes, capacitors and resistors are suitable for any type. The transistor will suit any N-P-N, but better with a minimum voltage drop between the collector and the emitter. In this case, the radiated power of the audio signal will be greater without increasing the current consumption current of moles.

The K561L5 type D1 chip can be replaced by a foreign analogue of CD4001A, and the type K561Is16 of the CD4020B microcircuit.

Setting the thrombus of rodents

With the health of all radio components and the unmistakable installation, the mobro repeller will earn immediately. If you wish, you can change the temporal parameters of the audio signal. Frequency will increase with a decrease in the resistor R1 or C1 condenser. If there is a desire to change the frequency in the process of operation of the mole scan, then the resistor R1 can be replaced by two consecutive connected, constant and trimming resistors with a nominal value of 75 com. When changing the frequency of the clock generator, it is necessary that it remains in the range from 300 to 900 Hz, since it is precisely such sound frequencies that rodents are most effectively distilled.

When changing the generator frequency, it is necessary to take into account that the time of the sound signals should be changed proportionally. For example, if the frequency is installed twice below - 250 Hz, the time between the sound signals and the duration of the signal will also become twice as many, 64 seconds and 4 seconds, respectively. So there is an opportunity to experiment. If you wish, you can restore the former temporary parameters, throwing the diode anode with 3 output DD2 by 14.

The duration of the sound signal and the period of its following can be easily changed. If you remove a diode with 15 output DD2, then the duration of the beep will be equal to 4 seconds without changing the repetition period 32 seconds, and if you add an additional diode with 14 output DD2 to output 12 DD1.3, then the beep will become a duration of 1 second.

The presence of mice in private homes and apartments can be a big problem for tenants, to cope with which an hour is not possible with the help of traditional methods. Especially annoying rodents their invasion in the autumn-winter period. Rats are much more dangerous - just as often guests in the private sector.

An alternative to the usual methods of combating rodents can be an ultrasonic rebel of rats and mice. This electronic device emits high-frequency sound waves. The human ear does not perceive them, but they have a great effect on rodents. And it is not at all necessary to buy this useful device. Ultrasonic rodent repeller with your own hands can also be made it possible.

1 What is the basis of work?

In the task of the device - the creation of high sound oscillations (frequencies from 30 to 70 kHz), which are sensitive to rodents. However, if the frequency is constant, then pests can adapt. Therefore, the frequency of ultrasound should periodically change in the entire range.

During the operation of the device, individuals there is an increase in the sense of danger and anxiety, which makes them leave a dwelling dwelling.

Features of the ultrasound repeller:

When using a repeatant, other methods of struggle are prohibited, for example, poisons based on the bait of animals and different traps. Because with this device that creates discomfort for rodents, they have the opposite effect.
Ultrasonic waves are repelled from solid objects and are absorbed soft. Consequently, in a more free and spacious room, the device is most effective. Through the walls ultrasound does not pass, so a separate repeller will be required to each room.
The device on batteries in unheated premises in winter should not be applied. Batteries are frozen at a minus temperature.
To achieve maximum effect, the device must work continuously within a month.
The discreteners in all rooms must work at the same time so that rodents do not leave the room into the room, and forever left the house.
For prophylaxis, this device is not used, so it is turned off after eliminating all pests.

These tips will help scare rats and housing mice most effectively.

1.1 Advantages of the apparatus

The pros will be attributed to:

Ultrasound scares pests, but does not destroy.
Chemicals and poison do not apply.
Consumes little energy and serves a long time.
Convenient economical way in combating rodents.
For people is safe.

1.2 How to make a device with your own hands?

For those who are familiar with electronics, make an ultrasonic repeller of mice and rats with their own hands will not be much difficulty. On the Internet you can find many detailed schemes and video on the assembly of this device. Often The device consists of:

resistors variable and ordinary - lower voltage in the network, regulate the level of ultrasound exit;
transistors - Create a frequency contour;
condenser - smoothes the pulsation of the current in the schema network;
switch (toggle switch) - turns on and off the device;
piezoofer - produces ultrasound signals - the main element of the device;
diodes - protect the repeller from incorrect meals to power;
power element - Crown or power supply.

All parts and components can be purchased at the radio amateur store. In addition, they will need devices for spike radioshem. The dimensions of the scaretcher are compact. Special configuration of the device will not need. Perhaps you only need to adjust frequencies.

1.3 Stages of work

There are several options for assembling the ultrasonic rodent scaretcher with their own hands. You need to choose a specific scheme based on the power of the future device, existing parts, skills in soldering and much more.

Most often, the basis of the scaretcher is a board with attacked tracks that connect the elements of the chip. However, in the simplest models, parts are connected using wires.

However, regardless of the assembly method you choose, the total action algorithm will be as follows:

Choose a drawing of the repeller based on your personal needs.
Buy the necessary radio components. Some details you can find at home. For example, speaker can be dropped from an old receiver or tape recorder.
Prepare a soldering iron and auxiliary substances (tin, rosin, flux, acid, etc.).
Safety the basis of the ultrasonic repeller is a symmetric multivibrator according to the selected scheme.
Connect the speaker and power item. In the dynamics there should be a slightly catchy squeak.
If there is no scot in the dynamics, or it is too strong, you need to increase or lower the frequency of the device accordingly. This is done by increasing or lowering the capacitance of capacitors by 0.1 μF.

The simplest ultrasonic device for scaring rodents is ready. To make a more complex repeller, which will automatically change the frequency of oscillations, it will take serious equipment and considerable skills in the calculations and soldering chip.

1.4 How to make an ultrasonic gun with your own hands? (video)

1.5 What else do you need to know?

In storerooms and kitchens, where they can find yourself impregnate pests, you need to put the device more powerful than in other rooms. It will take a longer period to get rid of such premises from rodents.

Homemade pets sometimes feel some frequencies of the device. At the same time, they will be concerned, anxiety. To protect pets from unwanted exposure, you should change the frequency of the emitter.

2 Other types of dischargers

Ultrasonic rodent repeller does not affect the same force on insects. Some insects are susceptible to high-frequency waves, but there is no guarantee.

2.1 Mosquito repeller

2.2 Cleaver repelters

Another kind of rodent pests, which annudits many land owners and brings a lot of trouble, is Mole. Currents are often fighting chemical and mechanical ways. However, today the ultrasonic mobbo repelter is a more efficient and humane method of removing pests from the garden.

In addition, the crown repeller can make it easier to make it even easier. To do this, you will need a plastic bottle and a little time. From plastic bottles, craftsmen come up with various comfortable devices, so this item is multifunctional. To scare the moles in the bottle, carved and flexing pocket blades. Then make a hole at the bottom of the bottle and put it on the tube or wire.

In the wind, this adaptation is well spinning thanks to the blades, creating a noise that goes into the ground through the tube. It is necessary to insert it into underground emptiness. It will be more efficient to pre-insert a metal pin with a bottle into a metal pipe. Her score is also deeper into the ground. Moles are afraid of noise, so the household plot will quickly leave.

2.3 Bird repeller

In addition to the benefit of birds, there are a lot of harm, destroying the harvest. Therefore, in some places the presence of feathered undesirable. To scare away birds with their own hands you can also build several devices. A simple bird repeller is similar to the device from moles.

It will take the same plastic bottle from which the windmill should be made. The blades are cut and the brilliant foil is attached to them. Such an turntable is installed on the ground or hang on a tree to protect fruits and berries. Rounding in the wind she will scare birds.

2.4 Snake repeller

Snakes meet not as often, but the neighborhood with them will not be pleasant anyone. Get rid of such uninterested guests will also help the ultrasonic snake repeller. It radiates sound vibrations that cause the cold-blooded feeling of danger and makes the territory. Install the repeller is recommended above the ground surface.

This article is intended for creative people who love to do everything with their own hands, as well as a study material about the princesses of the work of modern ultrasound dischargers.

Ultrasonic rodent repeller is an electronic device that radiates high-frequency sound waves that are not perceived by human ear as well as pets.

But, they are very well heard rodents (rats and mice).
The main task of electronic dischargers is to provide on ultrasound frequencies that are well heard rodents (frequencies from 30 to 70 kHz), sufficient power of sound oscillations.

Modern dischargers provide power up to 100 dB (for comparison, such a sound is published by a taking up jet plane at a distance of several meters).

Scheme of rodent repel

This is perhaps the simplest electronic circuit. This repeller can collect even a novice radio amateur. There is nothing difficult here.
In the presented design, the main device is a symmetrical multivibrator, which is assembled on elements R7, R5, C6, C5, DD1.3 and DD1.4.

The generator frequency can be changed from 25 to 50 kHz. From the generator output, the signal comes to the power amplifier, and then on the SP1 sound radiator.

To calculate the frequency of ultrasound, you can apply the following formula:
F \u003d 1 / (R5XC6 + R7XC5), where the capacitances of the capacitors are calculated in the pharands, and resistance of resistors in Omah.

Complete electrical circuit of crust and mice

This design is more complicated, but this is much more efficient than the previous one.

A distinctive feature of this scheme is the constantly changing frequency of ultrasound waves, which does not give rats and mice to get used to the sound radiation of the device.

The sound frequency changes automatically throughout the wave range from 20 to 50 kHz and is additionally modulated by a frequency of 10-30 Hz.

Frequency modulation here is repeated every 18 minutes.

The adjustment of this device must begin with the generator frequency setting.
The rating of the resistor R6 is specified, which in turn determines the depth of the modulation of the ultrasonic generator.
The selection of the resistor R1, you need to set the frequency of the specifying generator equal to 30 Hz.
Next, connecting the conclusions of the Emitter and the VT1 transistor base, select the resistor R5 so that the ultrasonic generator worked at about 50 kHz.
And in conclusion, connecting the conclusions of the collector and the emitter of the same transistor, select the R6 resistor rating in such a way that the generation frequency is 100 kHz.
On this process, the debugging process can be completed.

If you are the owner of the dacha, vineyard or a house in the village, then you know what tremendous damage can be created mice, rats and other rodents, and what costly ineffective, and sometimes dangerous is the fight against rodents with standard ways. It is almost impossible to quickly get rid of all kinds of rodents using various poisons. Mechanical traps are also not able to seriously reduce the population of these pests and then the ultrasonic rodent repeller will come to the rescue.

The role of the main element of the system of ultrasonic repeatter for rodents is executed by the signal generator, which is based on a symmetric multivibrator. Its frequency can be varied in the range from 25 to 50 kHz. From the output of the ultrasonic generator, the signal runs to the power amplifier, the emitting head SP1 is connected to the output.

Ultrasound Rodent Jigger Proizure

To calculate the frequency of the multivibrator, you can use the following formula:

F \u003d 1 / (R5XC6 + R7XC5), where resistances resistors in Omah, and the capacitance of capacitors in the Farades.

But it should be remembered that the frequency of the multivibrator operation depends not only on the passive components R5, R7, C5, C6, but also on the operation of the active transistor VT1. That is, the frequency will be the smallest when the transistor is locked and the greatest if it is open.

The mode of operation of the first transistor directly affects the elements of DD1.1 and DD1.2. Microcircuits K176L33 and constant R3C2 changing the voltage meander at the output signal to the signal trapezoid form.

The frequency of the generator is set by the RC chain consisting of components R2 and C1. Thus, the industrial high-frequency ultrasonic signal from the generator will change its frequency from 25 to 50 kHz approximately every 0.5 seconds.

Sound emitter can be collected from standard dynamics and a piece of plywood, and put the finished assembly in polyethylene and buried to the ground

The device works perfectly within a radius to 10 m. If it is necessary to increase the influence zone, it is required to connect a piezoelectric caps through a powerful amplifier, which can be collected by your own hands according to the standard transistor circuit.

On elements and not DD1.1 and DD1.2, the oscillation generator of the frequency infusion connected to the transistor VT1 is constructed. This transistor enhances them over the current and simultaneously performs the function of the electronic key controlling the optocoupler. The role of optocus is used by a thyristor optoc. The shape of the pulses at the outlet of the generator is rectangular, so the first transistor, depending on the front of the pulse, periodically slowly unlocks and locks. Optron, in the collector chain of the bipolar transistor, smoothly adjusts the time constant of the second generator on the elements of DD2.1 and DD2.2. Therefore, its frequency range varies widely from 20 to 80 kHz.

Ultrasonic rodent repeller Scheme option for several emitters

Elements DD2.3 and DD2.4 K561L7 chips are included in the role of inverters for the "swing" of the amplifier assembled on the transistors VT2 - VT5. At its exit, the same type of piezoelectric capsules are connected. Their total quantity in this scheme can reach 8. But remember that when the circuit is connected to the output of more than four piezoelectric elements, the transistors must be installed on different radiators.

Ultrasound emitters use piezoelements with a resonant frequency of 20 to 80 kHz. With resonance, it consumes the current of about 30 - 50 mA, so for this scheme there must be an appropriate power, stabilized, with a voltage at the outlet of 12 V.

The variable resistance R3 select the range, within which the device will change the frequency of oscillations. Since the human ear records the lower limit of the generator frequency in the range from 16 to 20 kHz, the correctly configured scheme will be briefly "audible" by the human ear. It will be a quiet and low sound like whistle.

Among the elastic fluctuations in air, the ultrasound is not perceived by a person who is not perceived by man, the lower frequency range is 20 kHz. Insects, bats apply this natural gift, as for communication, so for the hunting or location of the area and bypass obstacles in the absence of visibility. By borrowing an idea, a person takes an idea of \u200b\u200bhis arms.

The principle of action of the mobbo scary is that the electronic device produces vibratory pulses, a frequency of about 480 Hz.
These oscillations cause seismic waves in the ground, which are well distributed in it.

Since moles are able to feel even weak soil fluctuations at a high distance, such powerful impulses cause them a sense of fear and the animals leave their habitats.

1 - plastic case; 2 - sleeves; 3 - plug; 4 - e-board; 5 - contacts for batteries; 6 - spring; 7 - sealed lid.

Tornado Repeller Tornado L_2 is the most powerful and efficient device.
These findings are made by us in the observation of the results of the work of many repellers for several years.

The device operates from four finger batteries and is safe for pets, disturbances and humans.

Guaranteed kobots, gophers, earthy mice, bear and earthquakes.

You are represented by several chains of mobbo repelters to build these devices with their own hands.

The pulse generator collected on the IC1 microcircuit produces fluctuations in the 480 Hz frequency, which come to the output key collected on the T1 transistor.
Next turns on the vibromotor M, which creates the vibration you need.

The selection of resistances R1 and R2, you can set the time and time of the pause of the vibromotor M.
The vibromotor is fixed to the disfiguration body, the scheme is placed in the waterproof case and the device is ready for action.

Of course, all the schemes presented are easily repeated and really work, but do not forget that the mobbo disclavers presented on this site are manufactured in factory conditions by specialists, will be much more efficient and more reliable.

The circuit of the mobbo repelter with the radiator in the form of a relay.

Usually, the EMX-309L1 device is used as emitters in mob repeators, but if it is not possible to get it out, then the output can be found by applying the usual electronic relay.
This scheme is presented in the figure.

The scheme consists of two generators on IS1 and IS2 chips. Electrical pulses are fed to the contacts of the relay, which closes and open according to the generator frequency.
This creates vibration. The scheme is simple, deficient parts are not required to repetition.