The call does not work when the wireless button is turned on. Correct connection of a doorbell in an apartment

In wireless calls, the bell button is connected to the signal emitter not by a traditional wire, but by a radio channel. Structurally, the call includes two separate modules, the first of which is a transmitter controlled by a button. The second module is essentially a radio receiver combined with an actuator triggered by a transmitter signal.

False positives of such calls can occur for a number of reasons. For example, in the actuator technical reasons The transistor key may not close, and being constantly open, it makes the bell work constantly, regardless of pressing the button. The button itself may also be acting up. For example, condensation could get inside it, and the moisture, closing the contacts, causes a false start of the transmitter, which provokes a false operation of the receiver and the bell as a whole.

In the above cases, the bell is triggered falsely and continues to ring without respite. If the call simply gives a false signal and then goes silent, then the reason is different.

The fact is that the call transceiver operates in a certain frequency range. This range is officially allocated for amateur and service radio communications, and not only calls work in it, but also other receiving and transmitting radio devices, such as walkie-talkies and radio-controlled toys. It is quite possible that the receiver of your call “hears” not only the signal from its standard transmitter, but also catches the “left” signal from a nearby similar device. Perhaps even from the same demon wired call working nearby. If this is so, then the owner of the “left” bell has the same problems and he runs to the door when guests come to you, and you run to it when guests come to him.

In this case, you can try to save your call from false calls two ways. The first method is to partially shield the body of your call, or rather its sound-reproducing part in which the receiver is located. Shielding can be done using ordinary food foil by wrapping the bell on all sides except one, through which the signal will pass only from the transmitter of your bell button. If the method turns out to be effective, then the bell body can be carefully opened and shielding can be done inside it in order to restore the device to its original appearance.

If shielding does not help, then you can try to slightly change the operating frequency of the device. To do this, you will have to open both housings, that is, both the button housing and the bell housing. The button body must contain a variable capacitor. The same capacitor is also in the bell. First, by rotating the capacitor rotor in the button, you need to break the connection with the bell, and then, by rotating the rotor of the bell capacitor, restore the connection with the button again. The frequency will change slightly and the call may no longer be triggered by unwanted signals.

If there are no variable capacitors in the bell design, then you can change the frequency of the radio channel by changing the winding pitch of the inductors. In any case, they are in the call. The coils are made frameless and contain only a few turns of fairly thick wire that holds its shape well. There is always a certain gap between the turns of the coils. This is what should be changed by moving or spreading the coils. This process will be more complicated than changing the capacitance of tuning capacitors, but with a certain amount of accuracy and caution it is quite feasible.

If the design of the bell contains a touch plate instead of a button, then there is a high probability of unwanted operations due to the high sensitivity of the sensor. It can even react to a passing person or interference from household electrical appliances. In this case, the sensitivity of the sensor is reduced by rotating the trimming element in the sensor body. Such elements can be a trimming resistor, a trimming capacitor or a frame inductor with a rotating core.

Good night! :) In this review I would like to tell you about my recent purchase. To everyone⇒ I live in a private house, and in order not to carry out wiring there (not to reinvent the wheel) I decided to buy door bell. At first I wanted to buy it on Bika, but they are SOLD OUT there. I bought it on FP. I ordered it together with the tablet, they arrived in record time in 17! days. Delivery set Button (well, which is located by the door) Receiver Battery 2/3 AAA (This is the first time in my life I’ve seen such a battery) There is one button with three modes: 1.OFF (off) 2.ON/Plays one melody 3.ON/Plays 36 melodies in sequence

Very easy to install.

Operating range 80 meters. I didn’t check 80 meters, I checked 20 meters through the walls. Everything is working.

The receiver needs 2 AAA batteries

The button was installed in the best village traditions. I attached the button with self-tapping screws. Top type of protection from precipitation :)

The box says that the battery will last a year with 20 presses per day. Let's see, it's been working for 2 months already. There is a downside: it doesn’t work on the block (the blue stripe should light up when pressed). I didn’t ask for a refund - I don’t need the backlight. It turns out: “The intelligent design of the flashlight brings convenience to the deaf.” I’m thinking - I don’t know what to wish:), morning is coming - I wish you a good morning and a good day:)

Do not open it under any circumstances.

Weren't you waiting? :)
My Kamaz from childhood :) The cat ran away somewhere... Wow. If you liked the review, please click +. Ready to answer your questions, dear readers.

About the holiday?

I looked at the date of the review - it turns out it’s already the first of May. So I congratulate all working people and not so hard working people on the holiday of spring and labor. I wish you proper work and a good spring(?):)

mysku.ru

How to fix a doorbell? We make a call with our own hands

Required Tools

In order to carry out work on repairing a door lock, it is worth preparing some tools that will be useful in your work:

screwdriver;
rubber gloves;
wire cutters;
indicator screwdriver;
fork;
socket;
two table lamps.

Sequence of actions when repairing a bell

So, if all the tools specified in the paragraph above are prepared, then you can get to work.

Step 1 Power outage

In order to begin repairing the door lock, you must first turn off the power to it. But it is worth considering the fact that the table lamp must also be powered by something. To do this, you just need to turn off one automatic plug. Most often, the doorbell is powered by the same circuit breaker as the chandelier, so you need to turn on the chandelier and turn off the plugs one by one until it turns off. Once the required plug is disconnected, you can begin to work. At the same time, it will be possible to connect a table lamp to the outlet.

Step 2 Check for a network break

Before you begin repairs, you need to check the network for a break. To do this, you need to first wear gloves and remove the insulation from the bell wires. Then you need to temporarily connect the socket to the wires, and connect the lamp to the socket. After this, you should turn on the corresponding machine. If the lamp turns on, there is no network break. If switching does not occur, then this is direct evidence of a break in the network. This breakdown should not be repaired on your own, and you must call an electrician.

Step 3 Checking the Equipment Using an Ohmmeter

Again you need to turn off the corresponding machine. Then you need to turn off the temporary outlet. Afterwards, you should connect the ohmmeter to the wires, holding them by the insulated parts. Your partner must press the button, and if at this moment the arrow deviates, this means that both the wire and the button are in good condition.

Step 4 If the ohmmeter needle does not deviate

If the arrow does not deflect, then you need to disassemble the button. Then check the tightness of the ohmmeter contacts and carry out the testing procedure again. If necessary, clean the button contacts. Also, in order to avoid burnout, it is necessary to check the contacts to see if they are constantly occupied.

Step 5 Call verification

After all the above measures have been carried out, it is worth checking it. To do this, you need to connect all the contacts in place, turn on the corresponding machine and perform a test run. If after this the call does not work, then it cannot be repaired. You need to buy a new device and install it as indicated in the manufacturer's instructions. If the call starts working, it means you have done a good job. It is necessary to attach all the elements in place so that the wires do not get tangled or stick out.

ogodom.ru

Wireless call - advantages, disadvantages and types

A high-quality wireless bell for the front door of an apartment or house is in no way inferior to its wired counterpart, and even surpasses it in ease of installation and dismantling. The signal transmission unit can be so miniature that outwardly wireless call models are no different from regular ones. They are equipped with a video peephole combined with a motion sensor, backlight, anti-vandal cover and other little things to increase the comfort of use.

Key Features of Wireless Calling Models

When choosing any item, first of all it is worth assessing how suitable it will be for the conditions in which it will be used. To accurately understand whether it is worth installing a wireless call at home, you need to evaluate their features in more detail:

There is no need to run wires from the button to the speaker. This is the main difference, often influencing the choice of this type of device for a private home, in which the front door is quite far from the gate and a friendly dog runs between them.

Here you can install a regular wired bell without any problems, but it is best to bury the wire underground. Otherwise, it may stand out somewhat in the yard design.

Autonomous power supply. Since wireless calls are battery-powered, when the lights go out, guests will not have to call the host from the street for a long time. This is also a determining factor for summer cottages that do not have electricity. Powered by batteries at the same time creates certain inconveniences associated with their periodic replacement, but here you have to choose what is more important.
A wireless call cannot be installed everywhere. It is necessary to look at the distance from the receiver to the transmitter and the presence of obstacles between them that impede the passage of the radio signal.
If the house has more than one door (or gate), but several, then you can purchase an electric bell with two buttons. This will significantly reduce the cost of their installation compared to wired models.

Easy installation, dismantling and transfer of the button. This feature is rarely in demand, but if you need to move the gate, change the side of its opening or install Mailbox exactly where the button is located, it will be much easier to do this. If with a standard call you inevitably have to re-wire the wiring, then the wireless one is simply re-wired.

This may also be one of the disadvantages - some manufacturers make bell buttons with Velcro, which, if done poorly, can quickly fall off. If you are buying just such a bell, then you need to evaluate whether it is worth additionally screwing it on.

Scheme and principle of operation of wireless calls

For the average user, the principle of operation of wireless calls is very simple - the transmitter button is pressed, the radio signal from it goes to the receiver, where it activates an electrical circuit that supplies voltage to the speakers and a melody plays.

Despite the fact that the device diagram is rarely attached to it by the manufacturer, numerous radio amateurs have adopted the remote method of controlling the device itself, making not only bells with their own hands, but also various control devices - a wireless light switch or a remote garage door lifter.

The circuits of these devices are easy to manufacture and unpretentious in operation. The first two are separate boards for the button and the receiver, and the third circuit does not even require any configuration - the receiver is a regular supergenerator and, according to user reviews, everything is highly stable.

Video eye for wireless calling

The general scheme of installing a bell on a door can allow you to remotely monitor an entrance or street. If a video peephole with a camera is installed on the front door or gate, then inside the house you can immediately see who is calling. Depending on the device model, the image transmitted by the video eye is displayed on a separate receiving display or transmitted to an ordinary computer monitor. The quality of the picture is determined by the camera installed in the video peephole.

When choosing such a device scheme, it must be taken into account that the video eye with the camera requires a more thorough power supply. The main solutions to this problem are as follows:

Choosing a high-quality kit with minimal power consumption (if you need to record constantly).
The scheme provides for using the camera only after pressing the call button (the video eye records only those who called).
The video peephole and camera are powered separately from the network. It would seem, why would there be a wireless call, but this scheme also occurs quite often.

The connection diagram should be equipped with a motion sensor (the video peephole and camera start working when someone passes by - useful if there are people with an inadequate sense of humor in the entrance).

Depending on why you plan to install a video peephole with a camera, the resolution of the latter is selected - what quality it will take a picture. It should also be taken into account that the higher the resolution, the large quantity The amount of data will be transmitted by the camera via a radio channel per unit of time, and the more demanding such a circuit is in terms of power supply.

Nuances when choosing a wireless call

Like conventional models, wireless doorbells for the front door must be selected based on certain rules, especially if this is the first time purchasing such an item and there is no experience in operating such devices.

Distance

The main quality for a wireless call is the range and strength of the signal that is transmitted from the button to the speaker. If there are 5-10 meters between them, then this indicator is hardly worth paying close attention to, and when you plan to use the device at a distance of 50-150 meters, then it is better to test it before purchasing and agree with the seller about an exchange or return, if not in the right place This electric bell won't work after all. This is also quite possible - after all, you cannot see with your eyes whether there are obstacles in the path of the signal or not.

Nutrition

The number of batteries required to operate the device, what types are used, and how often they will have to be changed. It’s unlikely that anyone will answer the last question truthfully, but if the seller really praises the unprecedented efficiency, then it’s worth thinking about. You should not pay special attention to the type of batteries - the main thing is that they can be freely purchased.

Equipment

Everything is simple here - you need to check your passport so that everything is in place. You need to pay special attention to a call equipped with a video eye, several buttons and other additional little things. If at home you discover that some part is missing, then at best you will have to go back, and at worst you will have to prove that this is a factory shortage and not the loss of spare parts due to the fault of the buyer.

Overpayment

Opportunity to purchase a simpler model. If you just need a call to ring, then purchasing a device that can be connected to a computer in order to record your ringtone into it and pay twice or three times for it - most likely there is no point.

Fastening

Velcro can leave traces of glue on the surface if the button is moved, and the screw has to be screwed into the wall or front door. The Velcro may fall off, but the screw can be screwed in only once. Which is better - you need to choose according to the situation.

Manufacturer's warranty

There is nothing particularly broken in simple calls, and taking it for repairs may cost more than buying a new device, but it is advisable to clarify this issue. If you purchase a model with a camera, internal screen and a motion sensor, then you need to not only pay attention to the warranty, but also urgently require that all documents be filled out.

Electronics can last 10 years, or they can fail after a couple of months, especially if they are used occasionally.

General impression

In addition to the fact that the device must be beautiful, you need to look at the quality of the materials from which it is made. If you are purchasing a street bell, it is better to choose a button with a vandal-proof housing. Next, pay attention to the melody that you will have to listen to every day, and choose a device from the manufacturer. The last point is quite important - many characteristics of the device and the quality of its warranty service depend on it.

You can see how a wireless street bell works in the following video:

Setting up a call

Based on the size of the button and the functionality of the device itself, the location for their installation is selected. There is not a lot of choice here - the button needs to be clearly visible, and if this is an entrance, then it needs to be clear which door it belongs to.

The wall near the door. This mounting location is used most often - if the button is Velcro, then its fastening depends on whether the wall is painted or whitewashed. In the first case, the surface must be thoroughly degreased, and in the second, it is better to use a screw.
Door casing or door leaf. Everything is extremely simple - the usual fastening with a self-tapping screw.
Through the gate of a private house. Here you need to think more not about where and how to screw the button, but how to protect it from direct rays of the sun, rain and other atmospheric phenomena.

Also, in a private house, it is worth considering a bell with two speakers in order to duplicate the bell signal in the workshop, garden and other places where the owners can be often and for a long time.

When installing speakers inside the house, there are two options - if it’s just a bell, then install it as inconspicuously as possible, but taking into account that you may have to turn off or change the melody, which requires relatively free access to it. If you are using a surveillance monitor and an intercom, then you need to make a separate stand for them or use a niche in the wall for this (if there is one).

golddveri.ru

How a wireless call works: types of devices, differences

In the century modern technologies More and more new gadgets are appearing to make our lives more comfortable and simplify our work. One such device is the wireless doorbell, which has replaced its outdated counterparts. This simple, compact device can have many functions, and its installation is so simple that it does not require special skills or any special tools.

Wireless doorbell

Recently, such devices have become increasingly popular. So what is the secret of such demand? The answer lies in the way the bell operates.

Operating principle

To make it easier to understand how a radio call works, let’s first consider the principle of operation of a regular wired call. It consists of two parts connected to each other by a wire. The external part is a button that is installed outside the front door. The second internal part is a signal receiving device with a speaker. It is connected to the electrical network. When you press the button on external device a signal begins to flow through the wire to the internal device, then it is converted and sent to the speaker, as a result of which a bell rings.

The principle of operation of a wireless doorbell is similar, the only difference is that the signal from the button (transmitter) is transmitted to the internal device (receiver) via radio waves rather than wires. To do this, the transmitter and receiver have mini-antennas through which the signal is transmitted. In the majority modern devices This type of antenna plays the role of a microcircuit circuit. This allows you to make them compact.

Such wireless devices are especially popular not only among apartment owners, but also among people who have private homes. This is due to the fact that there is no need to drill walls or lay wires through the air or underground from the wicket or gate to the house. In addition, the range of such calls can be up to 150 meters, which is a definite plus.

Types of wireless doorbells

Today there are many various models wireless doorbells. They vary in price, configuration, functionality and type of power supply, reliability and scope of application.

Models of such gadgets are presented in various configurations. They may have multiple buttons associated with a single receiver. This is useful if there are several entrances to a room or area.

Wireless call with two buttons

But there are options with several receivers operating from one button. Such receivers also have many advantages. For example, they are installed in places where a bell located near the door usually cannot be heard (kitchen, bathroom, garage, etc.).

Wireless call with two receivers

If the distance between the button and the speaker is greater than the operating range of the device, then it can be supplemented with a repeater, which will significantly increase the operating range. The principle of its operation is that it simultaneously performs the functions of a receiver and transmitter. The repeater, configured for both devices, receives the signal from the transmitter and transmits it to the receiver.

Based on the type of power source, the following main types of devices are distinguished:

The transmitter and receiver are powered by batteries or rechargeable batteries.
The transmitter is battery powered and the receiver is mains powered.
The transmitter operates by pressing (without batteries), and the receiver operates from the mains or batteries (battery).

The first type is the most common, as it is simple and does not require a network connection; To operate the receiver and transmitter, you only need to insert AA or AAA batteries, depending on the model. The second type is less common, but more economical, since the speaker connected to the network consumes little electricity and does not require constant changing of batteries to operate. There are two options here: the receiver is inserted into a socket or wires are connected to it. But the third type is very promising. Its essence lies in the fact that the transmitter starts working by pressing a button. That is, when pressed, enough energy is generated to send a signal to the receiver. This type is very popular among owners of private houses, since in the cold winter the batteries are quickly discharged, and the batteries lose their capacity much faster.

Wireless doorbell models also differ in functionality. The main difference is the number of melodies played. IN budget options As a rule, there are no more than ten of them. Expensive models have better-quality speakers, and a much larger set of melodies. In addition, some models provide the ability to download your own melodies or sounds via electronic media or wireless connection. More expensive configurations of such devices also provide vibration alert functions or a bell indicator light. This is very convenient if someone is relaxing in the house, but it is necessary to know that guests have arrived.

More advanced models can be equipped with a surveillance camera, video intercom and motion sensor. The sensor is triggered when movement begins at a distance of several meters from the door, it turns on the camera and records what is happening. Thus, such devices can become part of a smart home or security system if everything is configured correctly.

Wireless call with camera and motion sensor

Depending on the purpose, there are two main types of wireless calls: outdoor and indoor. The first, as a rule, is chosen by owners of private houses, and the second by apartment owners. Since outdoor means installing the transmitter outdoors, it must have qualities such as resistance to ultraviolet rays, moisture resistance and impact resistance.

For more durable operation, most models are equipped with a small visor, which is installed above the button and protects the device from precipitation or direct sunlight. In addition, the body of such a button must be sealed to protect the filling from dust or moisture. If protection from vandals is needed, then, as a rule, they install a receiver in a metal case; the button itself is also made of metal.

Metal anti-vandal wireless call button

Therefore, before deciding which call is better, you need to decide on the location of its installation and the necessary functionality.

Self-installation

So how do you install a wireless doorbell yourself? As mentioned earlier, setting up a wireless bell is quite simple. The easiest to install is the model whose receiver is powered by batteries or an accumulator. It is enough to attach it with self-tapping screws or dowels, depending on the wall material.

For faster installation, you can use double-sided tape. The button is attached in the same way. Before this, batteries must be inserted into the receiver and transmitter. If the receiver is connected to the network, then you should first de-energize the connected wires, and then connect the receiver to the power supply.

Important! When installing a button in a hallway or on the street, it is not recommended to use double-sided tape, since such fastening is not reliable and durable. A good option- dowels or screws.

Wireless call circuit: various manufacturing options

Applied science does not stand still. Thanks to this, our life becomes comfortable and safe. This is how new devices and gadgets appear in everyday life, and old ones are improved. They become compact, versatile and quickly get rid of wires. The situation is similar with doorbells. Nowadays you won’t surprise anyone with a call with a lot of melodies, with good quality sound or imitating a human voice.

But the wireless radio call is a new product on the market. However, its popularity is only growing every day. This is due, first of all, to the fact that it is easy to install and does not require laying wires or drilling into walls. This is important when it is installed on a vestibule door or on the gate of a private house.

Wireless doorbell.

So what is the secret of such a unique device. As they say, everything ingenious is simple. It is enough to look under its body to be convinced of this.

Diagrams of a wireless bell operating principle.

Radio calls differ from each other in their set of functions, range or power source. They are similar in one thing - they have a signal receiver and transmitter. The source is a button, and the receiver is a device with a music chip, antenna and speaker. Let's take a closer look at how the wireless doorbell circuit is fundamentally expressed.

An approximate view of the transmitter microcircuits.

As can be seen in the diagram, the transmitter consists of a generator high frequency, amplifier-converter, three transistors and power supply. A 12 volt battery is used as a power source. The signal transmission frequency to the receiver is 433 MHz. There is no antenna as such here. It consists of two circuits that are connected in parallel. Thus, a simple microcircuit allows you to transmit a signal over 50 meters or more.

General view of the receiver chips.

The receiver device is quite simple. It is based on one transistor. From the transmitter the signal goes to the detector. He receives it and sends it to the amplifier. The signal is then sent to the sound chip. The future signal that a person will hear is generated on this chip. Also thanks to him, they change the melodies, choose the sound volume, and so on. After the signal reaches the chip, it goes to the sound amplifier and then to the speaker.

Most Chinese-made call transmitter and receiver microcircuits are designed according to this principle.

For comparison, consider the circuits of Chinese wired doorbells. The main difference is the presence of antennas and the method of transmitting the signal from the transmitter to the receiver.

Diagram of a wired Chinese call.

Homemade wireless bell

Let's consider one of the homemade microcircuits of a wireless analogue of such a device. In the basic principle of operation they are similar, but there are some differences. The main difference is the frequency at which the signal is transmitted from the transmitter to the receiving device - 87.9 MHz. The device itself consists of the following main modules:

Control circuits,
sound chip,
transmitter,
Power source.

Let's look at each element of the circuit in more detail.

Diagram of a homemade radio doorbell.

The device is controlled using the S1 button. Essentially, it starts the music chip and timer of the transmitter. When it is pressed, voltage flows to pins 6 and 13. There is also a microcircuit with resistor R2 and two diodes VD1 and VD2. It limits the upper voltage value on pins 6 and 13. This is necessary since the USM and K561 microcircuits differ in their logical level. The control device itself is based on the D1 chip. It plays the role of a timer that turns on the transmitter for a few seconds after the S1 button is pressed.

Single positive pulses are generated through elements D1.1 and D1.2. Their duration is directly related to the time constant in the C1-R4 circuit (taking into account the values indicated in the diagram, we can say that the duration of the pulses is about twenty seconds). The pulse changes polarity, hitting the inverter D1.3, and then goes to the VT1 switch. The power source is transformerless, and the installed capacitor C5 dampens excess voltage.

Important! In this circuit, polar capacitors are used of the electrolytic type, C11 and C12 are ceramic, and the rest are of any kind. It is necessary that all capacitors have a voltage of at least 16V, and for C5 - at least 300V. Coils L1 and L2 are wrapped with thin wire: the first - 6 turns, the second - two. Both are frameless and have an internal diameter of seven millimeters.

The UMS8-08 microcircuit is used for the sound chip. It reproduces 8 different sounds embedded in it. The selection of melodies is carried out by flipping through S1. If you send the output pulses from the D2 chip through the transistor switch VT2 to the transformer T1 with capacitor C10, and then to the speaker, the sound of the signal will be soft and pleasant to the ear (high and harsh sounds will disappear).

A piece of wire is used as an antenna. A length of no more than a meter will be sufficient. With such an antenna, the device transmits a signal from the transmitter to the receiver over a distance of up to one hundred meters.

Now you need to configure the device. The first step is to check the power source. Next, check that the sound chip is working correctly. If everything works, then proceed to setting up the transmitter. For a while, the wiring closes VT1 and the emitter. The receiver itself is installed at the frequency indicated above. Using settings C11 and C12, we achieve reliable reception at maximum range. Thanks to resistor R8, we set modulation for better sounding of the receiver. Then the jumper is removed and the timer is set on D1. To do this, briefly press button S1. In this case, the transmitting device turns on and operates for several seconds. If this time period is too small or, conversely, too long, then it is changed by selecting R4 and C1.

Thus, having minimal knowledge and purchasing everything you need at the nearest radio store, you can make a reliable call yourself.

Ringing from unnecessary devices

If you have an old phone or a broken computer mouse and their repair is impractical, they will come in handy if you decide to make your own wireless doorbell. Consider the option of making a similar device from a mouse:

All internals are removed from the case except the contact buttons.
On the board, two keys are connected to the bell device, and the remaining parts are removed.
The wheel is cut in half and one part is glued back.
On the remote control board, the sound button is soldered twisted pair. It connects the button to the mouse keys.
Solder the remaining ends to the key contacts - one to the outermost one, the second to any of the remaining two.
The last contact of the three is connected by a wire to the opposite one. This way both buttons will work.

The original call is ready.

main varieties and designs, their pros and cons, as well as what you should pay attention to when choosing

Although many people now install intercoms, the doorbell has not lost its popularity. This is due to the low cost of such a device and its availability. Ordinary calls have been replaced by wireless models. Installing a modern wireless bell is so simple that anyone can do it. The device has a fairly small transmitter and is practically no different in size from a wired bell button. Installing a motion sensor, video eye, backlight and anti-vandal protection on such devices allows you to increase the comfort of their use.

Functions and operating principle of a wireless doorbell

A wireless doorbell can improve the comfort level of home residents and visitors. This device has replaced wired models and, in addition to the main task - notifying about the arrival of guests - can be equipped with other functions:

Principle of operation

Although the internal structure of a wireless call differs from a regular one, they have the same operating principle. The signal from the button is sent to the receiver, which notifies about the arrival of a guest loud sound or melody. The only difference is that for wired models the call is transmitted via cable, while for wireless models it is transmitted via a radio channel.

The wireless call device is quite simple:

This device allows you to install the bell and button in convenient places, since they are powered by a battery or battery and do not require a connection to the network. Some models of wireless devices may have a combined power supply principle. In this case, the button runs on batteries, and the main unit runs on mains power.

Remember that the range of a wireless call in reality may be less than that indicated in its passport, since the signal is partially jammed by concrete or brick walls, metal doors and other structures.

Video: what is a wireless call

Types of wireless calls and their features

The modern construction market offers a fairly large assortment of wireless calls. To choose them correctly, you need to familiarize yourself with the existing offer and features different models.

First of all, such calls differ in range. You need to consider where you will install such a device: on the doors of an apartment or on the gate of a private house. Wireless calls can be:

Wireless calling components can be powered by:

A wireless call kit may consist of:

Advantages and disadvantages

Most people prefer wireless doorbell models because of their obvious advantages:

absence of wires - they do not need to be hidden and they will not spoil the decoration of the rooms;
non-volatile - such devices operate on batteries or rechargeable batteries and do not require a connection to the network;
simple installation - even a beginner can do it;
different configurations - the ability to simultaneously operate several buttons and speakers on the same network increases the comfort of using the call;
ease of dismantling - relocating the speaker or button to a more convenient place is very simple;
Beautiful appearance - modern models They differ in both color and body shape, so you can choose a bell to suit any room design.

This is not to say that a wireless call is an ideal solution. Like any other device, it also has some disadvantages, which are most often found in cheap models:

poor quality fastening. Most often this applies to devices mounted with Velcro. After some time, such fastening may weaken, as a result of which the bell falls and is damaged;
need to replace batteries or accumulators. It is necessary to periodically monitor the charge level and change the batteries, otherwise the call will stop working;
leaky design. When exposed to moisture, the elements of an unprotected button are damaged and it fails;
possibility of lost connection. When the power of the batteries is weak or there are obstacles in the signal path, the signal may not reach the receiver.

Most of the described disadvantages are absent in high-quality wireless calling models.

What to look for when choosing

To choose the right wireless bell, you need to decide where it will be installed, and then analyze the following features:

The difference between street and apartment models

Wireless bells are usually commercially available for indoor or outdoor installation. Obviously, outdoor models can also be installed in an apartment, but they will cost more due to their greater functionality.

Installing a Wireless Doorbell

Most wireless doorbells have both the button and speaker powered by batteries. In this case, installation of the device is quick and simple. First you need to purchase the necessary tools and components:

Installation must be carried out in the following order:

If the main unit of the wireless call is powered by the network, then to connect it you must have skills in working with electricity.

Video: solving a problem when installing a button

Wireless bell repair

Although high-quality wireless calls are quite reliable devices, sometimes situations arise when they fail.

Main causes of breakdowns:

Another common cause is a frequency failure of the transmitter and receiver. In this case, it is necessary to adjust it:

Owners of cheap Chinese devices often complain about the bell ringing spontaneously. This is due to the fact that the frequency of their calls coincides with the frequency of calls of their neighbors. You can solve this problem like this:

partially shield the receiver using foil. This will help reduce its sensitivity and it will not respond to the neighbors button;
improve the waterproofing of the button so that moisture does not get into it, causing short circuit and damage to parts;
buy a new call with a different operating frequency.

Video: how to increase the range of a wireless call

Probably most of us have encountered various wireless calls, especially in the countryside. Indeed, the gate from the country house is usually located far away, and you want to close this gate more tightly from uninvited traders and dogs. On the other hand, your neighbors won’t be able to reach you - you’re drinking tea at home, and behind the gate your neighbor shouts, “Bosses!” Agree - the situation is familiar. It is clear that the ideal option is to install an intercom. But this is money and not everyone is ready to buy such a device, especially at the dacha, where in winter they can even steal food, let alone equipment. An easier option is to call. But very often you don’t want to run wires from the house to the gate, and in some cases it simply doesn’t work out. And here numerous wireless calls come to our aid, which, for quite reasonable price, can be bought in almost every store. At the same time, manufacturers claim that this is a complete alternative to a regular call, only much more convenient and without any installation problems. But having bought such a bell, a person quickly discovers a very high consumption of batteries in the bell itself (i.e. in the part that is located at home). It gets to the point that the most powerful batteries (which are far from cheap) last for about a month. As a result, a person is either constantly forced to “feed” the device with more and more batteries, or stops using it. But this problem has a very simple solution that can reduce battery costs by orders of magnitude. In today's post I will tell you how to turn a regular wireless call into a reliable and economical device.

But first, a little theory: A wireless call actually consists of a signal transmitter and receiver, i.e. we are dealing with one-way radio exchange. In such a situation, the task of the transmitter, based on a user signal, is to generate a radio pulse of maximum power at a specific moment in time. Hence, the bell button, into which the transmitter is integrated, is powered by a 12V battery. But this device generates signals very rarely, only when someone presses a button. Accordingly, energy is consumed only at the moment the signal is generated, and the rest of the time the battery does not discharge. Well, since a bell is not a piano, usually the small battery in it lasts for at least a year, or even two or three. Everything, of course, also depends on the distance to the receiver (the greater the signal transmission distance, the sooner the functionality of the call will be disrupted when the transmitter battery drains). Well, from obstacles on the way (to pass a signal through iron or stone obstacles, the charge power is required much more than when transmitting a signal through the wall of a wooden house). But in general, we can say that the battery in the transmitter “lives” for quite a long time.

Another thing is the receiver that is installed in the house. This device is forced to constantly work “on reception”, i.e. be turned on and monitor the signal of the transmitter, so that when one appears, it will notify others with a call. It does not require a lot of power, but constant operation is required, therefore, as a rule, the receiver uses three AA batteries of 1.5 V each (however, as a rule, only two batteries work for the receiver itself, but we will return to this below) .

Accordingly, constant “reception” work drains the batteries quite quickly. As a result, it is the receiver, which seems to be located in the house and is not subject to, say, frost, that “eats” batteries much faster than the transmitter outside. By personal experience I will say that the blue “energizers” become unusable in about a month, accordingly, everything else will “wear out” much faster. I’m generally silent about batteries (you’ll be tortured to charge them).
Such energy consumption is very inconvenient, and the point here is not even the cost (well, honestly, 100 rubles a month is not that much of an amount), but the fact that most often you simply forget to change the batteries on time and, as a result, a guest who you need it, it just doesn’t get into the house. It’s good if he has a phone number, but if he’s a random neighbor passing by your apiary and noticing the swarm flying away...

And so, we found out that the main problem with wireless calls is the rapid drainage of the batteries in the receiving device. But how to avoid this?

The answer, I think, on the surface is to power it from the network. Yes, indeed, power supply from a 220V network can solve the problem of battery energy consumption. But how to do that? I think those who are at least a little familiar with the electric train will say “via an adapter” and, in fact, they will be right. However, if you connect power from a 4.5V adapter to the contacts in the battery compartment of the call receiver, the device will not work in 80% of cases. So what's the deal? What to do if this is exactly your case?

But the fact is that many wireless calls use a “cunning” circuit in the receiver - the board itself is powered by 3V, and the speaker by 4.5V for higher volume. If you disassemble the receiver, you can see that the first two batteries in the circuit power only the receiver board, and together they power the speaker. Accordingly, in order to start the device from the adapter, you need to connect the power supply to the board and the speaker and apply a voltage between the values of 3V and 4.5V to the common contact. I would recommend something in the range of 3.5-4V with mandatory stabilization.

In principle, the connection of contacts is done “one-two” and even without a soldering iron (although soldering is still more reliable), another matter is the power source. It’s good if there is a suitable one, but in my case, for example, this was not the case (as I think most people won’t be, since 90% of all adapters in the average person’s home are chargers from those that have already served their purpose). cell phones and players, and their voltage is higher than required). And even if you find an adapter with a suitable voltage, don’t rush to rejoice. First, check its real voltage using a tester - very often Chinese adapters produce a voltage significantly higher than what is written on their case. Remember that power supply greater than 4V can “kill” the call receiver.

In principle, a voltage reduction circuit with stabilization can be soldered using resistors and diodes, but to do this you need to have at least some idea of what needs to be done. Here I will not go into such details and will explain “for dummies” what you need to take to get the required voltage.

To begin with, take any 5V adapter (say, iPhone charging from the outlet, but not the original one, but a primitive one made in China, since it actually produces a little more than the required voltage). Personally, I used a similar adapter from an old player.

Next, take an adapter to power the same iPhone from the car's network, disassemble it, take out the board, and in place of the power supply for car models (12V) add the charging output contacts for the iPhone from the network (just watch the polarity). Accordingly, solder the wires to power the bell at the place where the charging voltage for the phone of the car adapter comes out. That's all. Car adapter to charge the phone, it reduces the current approximately as needed for us, while at the same time it has protection against electrical fluctuations. This is exactly what we need. At the same time, everything charging device You can buy the same “Auchan” at a price of 100 rubles per piece (which will pay off after two months of using the call).

Then you can insulate the board, but not necessarily - a voltage of 5V will not harm anyone, insulation is needed rather to protect the board itself from accidental influences. Personally, for me it looks like this.

No wireless calls required additional connection to the network because they operate on a battery or batteries. If the bell stops working normally, the first step is to replace the power source and check the functioning of the bell again. However, if the problem is not solved, then a more in-depth examination will be needed: you should open the mechanism and check the integrity of the structure. Some wiring may come loose due to constant use. It also happens that the bell parts are completely worn out, and depending on the model, it will be possible to replace them or you will have to purchase a new device.

Working principle of wireless doorbell, easy to install yourself

In the age of modern technology, more and more new gadgets are appearing to make our lives more comfortable and simplify our work.

One such device is the wireless doorbell, which has replaced its outdated counterparts. This simple, compact device can have many functions, and its installation is so simple that it does not require special skills or any special tools.

Recently, such devices have become increasingly popular. So what is the secret of such demand? The answer lies in the way the bell operates.

Operating principle

The second internal part is a signal receiving device with a speaker. It is connected to the electrical network. When you press a button on an external device, a signal begins to flow through the wire to the internal device, then it is converted and sent to the speaker, resulting in a ringing sound.

In most modern devices of this type, the role of the antenna is performed by the circuit of the microcircuit. This allows you to make them compact.

Types of wireless doorbells

There are many different models of wireless doorbells available today. They vary in price, configuration, functionality and type of power supply, reliability and scope of application.

Models of such gadgets are presented in various configurations. They may have multiple buttons associated with a single receiver. This is useful if there are several entrances to a room or area.

Wireless call with two buttonsBut there are options with several receivers operating from one button. Such receivers also have many advantages. For example, they are installed in places where a bell located near the door usually cannot be heard (kitchen, bathroom, garage, etc.).

Wireless call with two receivers If the distance between the button and the speaker is greater than the operating range of the device, then it can be supplemented with a repeater, which will significantly increase the operating range.

The principle of its operation is that it simultaneously performs the functions of a receiver and transmitter. The repeater, configured for both devices, receives the signal from the transmitter and transmits it to the receiver.

Based on the type of power source, the following main types of devices are distinguished:

The transmitter and receiver are powered by batteries or rechargeable batteries.
The transmitter is battery powered and the receiver is mains powered.
The transmitter operates by pressing (without batteries), and the receiver operates from the mains or batteries (battery).

But the third type is very promising. Its essence lies in the fact that the transmitter starts working by pressing a button. That is, when pressed, enough energy is generated to send a signal to the receiver. This type is very popular among owners of private houses, since in the cold winter the batteries are quickly discharged, and the batteries lose their capacity much faster.

Wireless doorbell models also differ in functionality. The main difference is the number of melodies played. In budget options there are, as a rule, no more than ten.

Expensive models have better-quality speakers, and a much larger set of melodies. In addition, some models provide the ability to download your own melodies or sounds via electronic media or a wireless connection. More expensive configurations of such devices also provide vibration alert functions or a bell indicator light. This is very convenient if someone is relaxing in the house, but it is necessary to know that guests have arrived.

Wireless bell with camera and motion sensor Depending on the purpose, there are two main types of wireless bells: outdoor and indoor.

The first, as a rule, is chosen by owners of private houses, and the second by apartment owners. Since outdoor means installing the transmitter outdoors, it must have qualities such as resistance to ultraviolet rays, moisture resistance and impact resistance.

For more durable operation, most models are equipped with a small visor, which is installed above the button and protects the device from precipitation or direct sunlight.

In addition, the body of such a button must be sealed to protect the filling from dust or moisture. If protection from vandals is needed, then, as a rule, they install a receiver in a metal case; the button itself is also made of metal.

Therefore, before deciding which call is better, you need to decide on the location of its installation and the necessary functionality.

Self-installation

Source: http://mezhdveri.ru/17933-rabotyi-besprovodnogo-zvonka.html

Why does a wireless bell on a metal fence ring by itself?

A high-quality wireless bell for the front door of an apartment or house is in no way inferior to its wired counterpart, and even surpasses it in ease of installation and dismantling.

The signal transmission unit can be so miniature that outwardly wireless call models are no different from regular ones. They are equipped with a video peephole combined with a motion sensor, backlight, anti-vandal cover and other little things to increase the comfort of use.

Key Features of Wireless Calling Models

There is no need to run wires from the button to the speaker. This is the main difference, often influencing the choice of this type of device for a private home, in which the front door is quite far from the gate and a friendly dog runs between them.

Autonomous power supply. Since wireless calls are battery-powered, when the lights go out, guests will not have to call the host from the street for a long time. This is also a determining factor for summer cottages that do not have electricity. Powered by batteries at the same time creates certain inconveniences associated with their periodic replacement, but here you have to choose what is more important.
A wireless call cannot be installed everywhere. It is necessary to look at the distance from the receiver to the transmitter and the presence of obstacles between them that impede the passage of the radio signal.
If the house has more than one door (or gate), but several, then you can purchase an electric bell with two buttons. This will significantly reduce the cost of their installation compared to wired models.

Easy installation, dismantling and transfer of the button. This feature is rarely in demand, but if you need to move the gate, change the side it opens, or install a mailbox exactly where the button is located, then it will be much easier to do this. If with a standard call you inevitably have to re-wire the wiring, then the wireless one is simply re-wired.

Scheme and principle of operation of wireless calls

Video eye for wireless calling

Depending on the device model, the image transmitted by the video eye is displayed on a separate receiving display or transmitted to an ordinary computer monitor. The quality of the picture is determined by the camera installed in the video peephole.

When choosing such a device scheme, it must be taken into account that the video eye with the camera requires a more thorough power supply. The main solutions to this problem are as follows:

Choosing a high-quality kit with minimal power consumption (if you need to record constantly).
The scheme provides for using the camera only after pressing the call button (the video eye records only those who called).
The video peephole and camera are powered separately from the network. It would seem, why would there be a wireless call, but this scheme also occurs quite often.

The connection diagram should be equipped with a motion sensor (the video peephole and camera start working when someone passes by - useful if there are people with an inadequate sense of humor in the entrance).

Depending on why you plan to install a video peephole with a camera, the resolution of the latter is selected - what quality it will take a picture. It should also be taken into account that the higher the resolution, the more data will be transmitted by the camera via a radio channel per unit of time and the more demanding such a circuit is in terms of power supply.

Nuances when choosing a wireless call

Distance

The main quality for a wireless call is the range and strength of the signal that is transmitted from the button to the speaker.

If there are 5-10 meters between them, then this indicator is hardly worth paying close attention to, and when you plan to use the device at a distance of 50-150 meters, then it is better to test it before purchasing and agree with the seller about an exchange or return, if necessary This electric bell won't work anyway. This is also quite possible - after all, you cannot see with your eyes whether there are obstacles in the path of the signal or not.

Nutrition

Equipment

Overpayment

Fastening

Manufacturer's warranty

There is nothing particularly broken in simple calls, and taking it for repairs may cost more than buying a new device, but it is advisable to clarify this issue. If you purchase a model with a camera, an internal screen and a motion sensor, then you should not only pay attention to the warranty, but also urgently require that all documents be filled out.

General impression

Next, pay attention to the melody that you will have to listen to every day, and choose a device from the manufacturer. The last point is quite important - many characteristics of the device and the quality of its warranty service depend on it.

Setting up a call

The wall near the door. This mounting location is used most often - if the button is Velcro, then its fastening depends on whether the wall is painted or whitewashed. In the first case, the surface must be thoroughly degreased, and in the second, it is better to use a screw.
Door casing or door leaf. Everything is extremely simple - the usual fastening with a self-tapping screw.
Through the gate of a private house. Here you need to think more not about where and how to screw the button, but how to protect it from direct rays of the sun, rain and other atmospheric phenomena.

Source: https://golddveri.ru/vxodnye-dveri/besprovodnoj-zvonok.html

Choosing a bell for your apartment, figuring out why the bell sometimes doesn’t want to work

The bell is used to let hosts know when they have guests. In Soviet times, the range of calls produced by our domestic industry was very small and there was no problem of choice as such.

Now everything has changed. The number of models is off the charts and this fact makes it very difficult to choose. Just look at how wide an assortment there is of a regular electric wired doorbell! But, as if this were not enough, in addition to everything, calls that work without wires were invented.

But let's not rush, let's go in chronological order. So, welcome! - wired calls.

Wired calls

Wired ones consist of two modules - a button and the bell itself, which are connected by wires (well, it’s logical). These are the most reliable and affordable devices for the end user. They don’t care about anything, no interference in the radio channel, no dead batteries in the cold.

The principle of operation is sometimes as simple as a Soviet three kopecks: thanks to the normally open button, initially no current flows through the circuit. As soon as you press the key, the circuit closes and voltage is supplied to the bell module, which is triggered.

The most primitive models will ring as long as the circuit is closed, while slightly more advanced ones will fall silent after a given period of time. This is necessary so that if the button is blocked, for example, with a match, the bell does not ring indefinitely and does not overheat.

Wireless calls

The advantage of wireless calls is obvious: there is no need to run wires from the button to the bell module. This will be fully appreciated by the owners of large private houses or summer cottages, where the distance from the door or gate to the room where the owners relax can be very significant.

Such calls, of course, are more expensive and more complex than wireless ones. And as the theory of system reliability says, the more complex the device, the higher the likelihood of its failure. In addition, all such calls (in the radio button itself) have batteries installed, which have the unpleasant feature of running out at the most inopportune moment.

In such cases, you have to take all measures to protect the button module from the influence of the external environment (well, rain or hail the size of a chicken egg).

Stove heating: an echo of the past or a modern solution? With batteries, in fact, everything is not so bad, because the batteries are consumed only when the bell button is pressed, so they usually last for a long time. The only thing that can significantly reduce their life is severe frosts or a crooked Chinese circuit that eats up batteries even in idle mode.

Since the module with the button and batteries is quite complex (after all, there must be a radio transmitter inside for a special code sequence for activating the call), it becomes a desirable prey for all sorts of radio amateurs.

Some literally cannot walk past your button without picking it off with a screwdriver and putting it in their pocket.

By the way, technology does not stand still and now some radio bells are equipped with a video camera and a door lock control module, which turns them into a full-fledged access control system with visual identification (or even recording) of the visitor.

Sounding module

The ringing unit itself can be designed either on the principle of a primitive school bell (remember, there were such things?), or in the form of a solenoid with a movable core, which loudly strikes a freely suspended metal plate.

But such calls are becoming less and less, now more are in use electronic circuits with speakers or piezoelectric elements. One of the reasons is that such a call can sometimes work spontaneously, and this is convenient for few people.

Accordingly, this gives the widest possibilities in choosing melodies, programming to turn it off so as not to be disturbed at night, etc. A cool modern bell, as a rule, is a symbiosis of a video peephole, the bell itself and a system that unlocks the door remotely.