preface

I have used the "smart switch" of LinkedIn Technology before, and I deeply appreciate its "self generation" technology. Therefore, when I saw that Ganji provided another self generating product of his family for trial use—— When "linbell G4 self generated wireless doorbell", I can't help but feel excited. Fortunately, I managed to get the chance to try it out. Thank you Love to play computer games Let me take a big step forward on the way to improve the home environment and build a smart home.

"Linbell G4 self generating wireless doorbell" is the fourth generation doorbell product developed by LinkedIn Technology. Compared with the previous three generations of products, it has not only become rectangular in appearance, but also smaller in size; The function is also optimized, with smaller pressure, stronger self generating capacity and longer transmission distance. Compared with ordinary doorbell, G4 does not need batteries, has ultra-low power consumption, does not need wiring and wireless control, and is not afraid of wind and rain, and can be used outdoors. In addition to being used as a doorbell, it can also be used as a pager for the elderly. Linbell G4 has brought me infinite surprises. It has become the most frequently used smart home appliance in my daily life.

Unpacking

The outer packaging of "linbell G4 self generating wireless doorbell" continues the consistent design style of LinkedIn Technology. It is rectangular, kraft paper, black ink printing, and environmental protection.

In the middle of the packing box is the front outline of the transmitter and receiver of the linbell G4 self generating wireless doorbell. The signal icon on the upper right corner of the transmitter indicates that the wireless control mode is used; Above the box are the Chinese and English trademarks and logos of LinkedIn Technology. The blue and white trial stickers on the upper right margin indicate the origin of the product.

At the bottom of the back of the packaging box, the seven functions of linbell G4 are listed: no battery, wireless remote control, free code matching, power-off memory, front and rear door discrimination, adjustable volume and ultra-low power consumption. In other places, an additional white sticker was pasted with the product name, model, color, barcode of linbell G4, as well as the manufacturer's website, telephone and QR code information.

The product name and the manufacturer's slogan are printed on the top of the box.

LinkedIn Science and Technology is committed to environmental protection in the end. It is carefully printed in small letters at the bottom of the packaging box: "Protect the environment, reuse, be smart, and be sure to find use for it.".

The outer package described above is actually a paper cover. After taking it out, you can see the packing box inside. The inner package is simple, elegant and clean, without any handwriting printed, so as to minimize environmental pollution; At the same time, it also reduces the production cost and spends more money on improving product functions rather than over packaging and beautification.

The inner box is a lift up design. When you open the lid, you can see the transmitter and receiver standing on the left and right ends of the box. In addition, there are some small accessories.

First, let's take out the larger receiver and enjoy it.

The front of the receiver is rectangular, with a white surface, a bell shape on the top, and a blue bar button below. The four corners have been rounded, without hurting hands.

This bell is actually a combination of the English letters "L" and "B". It is vivid and has a clear meaning, indicating the use and function of the equipment.

The long strip high permeability plastic button can realize two functions. Press the left to control the volume; Press the right to switch the ringing music. It also has a built-in blue LED indicator light, which is clear and eye-catching in the daytime and soft and unobtrusive at night.

Turn the receiver over and its back is mainly divided into upper and lower parts. The upper half is a two pin power plug, which can be plugged into any wall socket and patch panel conforming to national standards for power supply; The lower part is the sound outlet of the horn.

The sound outlet of the loudspeaker is a large and small diamond pattern, which is connected by two circles of small round holes with different specifications, and has a beautiful shape. The surface is smooth without burrs, and the holes are evenly spaced and arranged, showing a precise manufacturing process.

The surface of the electroplated plug is bright and shiny, the edges and corners are passivated, and the top of the plug is also folded inward. The plug has strong metal texture and is safe and reliable to use. In particular, the base has also been reinforced, which is significantly higher than one piece.

The side of the receiver is designed to be concave, converging from the outside to the inside, with rounded corners and full of arc beauty.

Next, take out the smaller transmitter and enjoy it.

The front of the transmitter is rectangular, and the surface is made of white frosted material. The pattern on it is consistent with that of the receiver, which is a supporting product; At the bottom is a pressing dot, which controls the doorbell. The four corners have been rounded, without hurting hands.

On the back of the transmitter is a mounting backplane, on which two screw mounting holes are reserved, and the orientation is marked with arrows and text. The whole doorbell does not use one screw, and is all snap structure. Four buckles are designed on the upper and lower ends of the backplane to connect with the back of the transmitter.

From the side, the emitter is a double-layer inclined nested structure. When the doorbell is pressed, a certain inclination will be formed, so the lower part will tilt upward slightly. In addition, it is obvious from this direction that the transmitter housing is divided into upper, middle and lower parts: panel, backplane and mounting plate.

In addition to the receiver and transmitter, there is also a manual in the packaging box. It is foldout type, front and back printing, which briefly introduces the door bell installation and code matching

method. It is easy to learn with vivid pictures and texts.

The packing box also provides two screws and plastic expansion bolts for installing the doorbell, which are packed in a transparent plastic bag.

The doorbell can be installed in two ways: one is fixed with screws, and the other is glued. A 3M double-sided adhesive tape is provided in the packaging box, and a blue sticker is also pasted on it. It is a warm reminder not to stick it on the metal door, or it will affect the signal. The use method of 3M glue is not detailed, and everyone can use it.

So far, all the things in the box have appeared one by one. After unpacking, everyone lined up for a group photo.

Disassembly

The body of linbell G4 self generating wireless doorbell is made of engineering plastic, in order to show the ancient craftsman Salute, no screw is used, all are connected by bayonet, so it is my It is possible to disassemble. At the same time, I am very curious about the principle of self generation, and I have long thought about exploring it. This time, the linbell G4 doorbell is a perfect opportunity. After unpacking and inspection, the disassembly work started immediately.

First, disassemble the transmitter of linbell G4. See the video below for the specific process.

1. There is an opening hole on the mounting shell on the back of the transmitter, which can be opened by inserting a slotted screwdriver.

2. The transmitter backplane and the panel are also connected with clips, and can be separated by pulling them apart.

3. After removing the panel, the internal circuit board and the surrounding red antenna are exposed.

4. The transmitter switch is an integrated structure, which is fixed on the back shell with two clips and can be removed as a whole.

5. Open the three clips on the small module to remove the push switch, circuit board and coil. The circuit board and the back coil are welded together and cannot be disassembled. So far, complete the disassembly.

Next, disassemble the receiver of linbell G4. See the following video for the specific process.

1. There is no gap on the back of the receiver, so it is impossible to start; Disassembly can only be carried out from the slit around the panel. Use a crowbar and other tools to open the buckle and remove it.

2. There is only one blue transparent plastic plate on the upper cover of the receiver, which is the front control button.

3. The receiver is divided into upper and lower parts. The upper half is a large circuit board; The lower part is a horn, surrounded by an antenna wrapped in red skin.

4. The receiver circuit board is fixed with a snap and a groove structure, and can be separated with a crowbar. Two red wires are led out from the circuit board to connect the power plug on the back. The circuit board and the back shell cannot be completely disconnected. The horn is also connected to the circuit board in the same way, but with green wires.

5. The circuit board can only be turned over. Please enjoy the electrical components and the overall structure.

details

Through disassembly, I can see the internal structure of linbell G4 doorbell, and understand its self generating principle. Feel its exquisite craftsmanship and rigorous attitude from the details.

The transmitter has many parts and complex structure. There are no screws on it or it is fixed by adhesive. It is a buckle structure. From the perspective of workmanship, it is very complicated, but it brings unexpected technological beauty, and there are no metal parts inside, which will not interfere with self generation.

Although the receiver has a simple structure, it has many internal components and is connected to an external power supply, which requires high safety requirements for the use of the product. The receiver also has sound and flash effects, so these two functions will also affect the user's experience. Equipped with high transparent blue buttons and large speakers, it shows that the manufacturer has also realized this and made great efforts.

The components on the circuit board of the transmitter are arranged neatly, and the solder joints are full, reflecting the superb board making process.

The circuit board of the receiver has obviously been optimized. Compared with previous generations of products, the layout is more compact. There is a small vertical circuit board on it. It is obvious that the three-dimensional design scheme is adopted to save plane space.

Although there are only three chips on the independent small circuit board, it plays an important role and is the heart of the whole product.

C113LC is a high-performance wireless chip and a highly integrated UHF wireless receiver, which is dedicated to low-power wireless applications.

STM8S003F3P6 is a single-chip microcomputer, 8-bit control chip, low power consumption.

install

It has been introduced during disassembly that the installation of linbell G4 self generating wireless doorbell is very simple. There are two installation methods: one is screw fixation; An adhesive. Since it is stated in the manual that it is not recommended to install it on the metal door, I chose to drill holes in the wall, use expansion bolts and screws to fix it on the wall beside the door.

The white appearance adds color to the gray wall. Since it is a direct drilling, the position can be selected optionally. I choose to install it in the place where my baby can reach by lifting his hand.

The receiver can be plugged in anywhere in the house. I inserted them in the bedroom, study, kitchen and other locations for testing, and the connection with the transmitter is barrier free, which can achieve a perfect fit. The configuration of one for one is enough for me.

function

1. Press the transmitter, the receiver will sound music and the indicator will flash at the same time.

2. Press the receiver volume key to switch the volume until it is muted, with memory function.

3. Press the receiver music keyboard to switch ringing music. However, it does not have the memory function and needs to enter the learning mode setting.

4. Learning mode. First, press the music key to select your favorite music; Then long press for more than 3 seconds, the indicator light starts to flash, and then release the button; Finally, press the transmitter to select music.

5. Living in different houses on the same floor and the same floor with the elderly at home, send the transmitter to the elderly at home as a pager. At night, in case of emergency, we can call quickly, respond in time, and pay attention to the health and safety of the elderly living alone.

summary

Linbell G4 self generating wireless doorbell realizes all the functions of ordinary doorbell, solves the drawbacks of ordinary doorbell, and realizes intelligent upgrade. In the process of building intelligent home, another daily application device has realized intelligent reproduction. However, through this trial, some shortcomings of G4 have also been found, hoping to attract the attention of manufacturers.

advantage:

1. Small appearance, harmonious integration into the overall home environment.

2. Wireless connection. Easy to install and plug in.

3. Self generation technology, never need to change the battery, to solve the worries after use.

4. Use as needed. Use the doorbell and pager as you like.

Disadvantages:

1. The receiver can be easily lost by quick disassembly. The doorbell transmitter can be removed by using a screwdriver. Once it is lost, it cannot be retrieved, which is too risky. Suggestion: strengthen security measures and guard against theft.

2. A protruding design is formed at the power plug on the transmitter, which is slightly abrupt and increases the height invisibly. Suggestion: reduce the volume and maintain the consistency of the backplane plane.

3. Intelligent equipment should have the ability to integrate into smart home. Suggestion: add wireless access function to realize remote control ringing of mobile phones; Ringing music switching and volume control can be realized through mobile phones. The current operation mode is a bit cumbersome. The transmitter is fixed outside the door. Every time I change the music, I have to run around. It's very tiring!

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