These ugly looking mechanical wall clock have one significant advantage over conventional watches: they have a power reserve of up to four days when, like a conventional watch, the power reserve is 1-2 days. A large power reserve was the main task in the development of this watch, in order to solve it, it was necessary to simultaneously provide technology for mass production, minimize friction losses in the gears, and not particularly overload the weight. The result is a product that we present to your judgment. name it assembled watch model it is possible conditionally, because This is no longer a model, but a full-fledged working mechanism. current wooden clock mechanism is assembled from the already laser-cut gears included in the kit, which are planted on wooden axles and on bearings. The clock mechanism uses as many as 8 of these bearings, and the ninth one is in the weight, which ensured an easy and reliable move. In these wooden clock Graham's descent, weight drive and wheel factory were used. And although the clock uses about 150 parts (of which about a dozen and a half gears), to assemble this wooden watch you only need glue (such as PVA and cyanoacrylate), a sharp knife and a needle file. The design is interesting!
The clockwork is done open, without housing.
The watch is powered by a hanging weight, into which you will need to fill 1.5 or 3 kg of weight (we recommend using 8 or 8.5 mm lead buckshot as a filler). The design of the watch is designed for two options for using the weight: a full-fledged one, when one weight winding is enough for four days, and a light mode, when the weight of the weight can be reduced, but the watch will have to be wound every two days. As in all mechanical watch similar design, the stroke accuracy is controlled by the position of the pendulum lens. A well-tuned watch will provide you with an accuracy of 1-2 minutes per day.
To improve durability wooden clock it is desirable to cover their details with two or three layers Danish oil. In addition, the oil will give the wall clock a nice professional look.
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Greetings to all readers website!
In this article, I want to talk about such a thing as an electronic designer.
I want to say right away that those who believe that it is cheaper to buy ready-made ones may not read further! This article is for those who are at least a little interested or fond of radio electronics. And also for those who decided to join this hobby.
I became interested in radio electronics when I was a schoolboy. He assembled a detector radio receiver and other primitive circuits. And then my father and I bought the Soviet electronic designer Start 7176 "Electronic clock". 
I collected them, but they didn’t work, either I messed up something, or some part turned out to be not working, but they never went. It was embarrassing and embarrassing. But nevertheless, even this experience was very useful, and working with the designer is very informative.
And now, after many years, reviews caught my eye (,) and decided to buy it for myself, I chose green ones with a case.
Ordered on the site. The parcel went 21 days, delivery is free, but without a track. Received at my post office, everything is as usual, without incident.
This case comes in the form of a small package. 
Let's open it and see what's inside. 
Set composition
- Fee
- Seven-segment digital indicators with a dot - 4 pcs
- Microcircuits - 2 pcs
- Loose (resistors, capacitors, transistors, quartz, other elements)
- Power cable
- Hull details
- Instruction
The instruction manual is in Chinese. This is enough to assemble (the circuitry language is the same for everyone), but there were problems with the setup. 
Assembly process
We will need:
- soldering iron;
- solder;
- side cutters;
- knife.
It is customary to read the assembly from passive elements (resistors, capacitors, buttons, etc.).
The set includes two types of resistors (510 and 4.7K), color marking on them. You can also use an ohmmeter. But in fact, everything turned out to be much simpler, they were signed. 
I arranged the resistors according to the diagram so that they did not fall out, bent the contacts on the reverse side. Then he cut off the excess with side cutters and soldered everything in one fell swoop. 
This photo shows the prepared resistor contacts and one row has already been soldered. 
Soldered the buttons 
Sockets for microcircuits, do not forget to control the correct position by the key (a notch at one end of the socket). 
Then capacitors, a diode, a tweeter and a connector for microcontroller firmware. Here it requires control of the soldering of the diode, since it does not matter to him which side! 
It came to transistors, quartz, a power connector and a battery socket. We check the correct installation of transistors, this is also important! Fortunately, both on the diagram and on the board itself, this is all noted. 
Everything, all the elements on this side are in place, it remains to solder the digital segments. We put them in their places, do not forget to turn one point up! And also disappeared in one go. 
Everything, the clock is assembled, the drum roll, the moment of truth has come ...
We connect to the power source ... Hooray! Earned! 
It remains to assemble the body. There are no instructions for this case, we collect it by selection. 
The clock is assembled and set.
A couple of photos of the interior. 
Setting instructions
Purpose of buttons and indicators
- the first two indicators are hours
- two second minute indicators
- two dots between them - seconds countdown
- dot after minutes - alarm indicator (on/off)
- top button - Increment, increases the value
- bottom button - Functions, setting watch functions
Initial reset and testing
- turn on the clock
- press and hold the Increment button
- press and release the Functions button
After that, the time will be set to 7:59 on the clock and after a few seconds it will change to 8:00, the alarm will go off. To stop the alarm sound, briefly press the Increment button.
Setting
The clock is set using the Function button. Pressing it switches the watch to one of the setting modes in the following sequence:
- time setting, clock
- time setting, minutes
- alarm setting, clock
- alarm setting, minutes
- turn on turn off the alarm clock
- setting the period of clock signals, start in hours
- setting the period of clock signals, end in hours
- turn on turn off clock signals
- return to working mode
In each of the modes, using the Increment button, you can change the set value. One short press adds one to the current value. In modes where you want to enable or disable the function, respectively, turns it on or off.
designer's impressions
I really liked the set! Collecting is a pleasure. Pleased with the quality of the printed circuit board, very well made. All parts fit perfectly, no piling was required. The clock started working immediately and has been ticking for several days. They shine very brightly, put them in the corridor.
Unfortunately, I ordered it just a couple of days before the appearance. The new version added a thermometer and brightness control depending on the lighting.
In any case, as I said at the very beginning, this constructor is for those who want to make an electronic device with their own hands. As they say, anyone can buy a ready-made device in a store, but assembling a gadget with one's own hand is a completely different matter. In addition, this is a great gift for a teenager who is fond of electronics. I recommend!
PS: My wife really liked the watch. She said order another one, white with brightness control, we will put it in the room.
I plan to buy +37 Add to favourites Liked the review +26 +50This review is for beginner radio amateurs (soldering enthusiasts), for those who are interested in the process itself. Minimum details. You can evaluate your skill.
Let's go through quickly, in what form everything came. 
Standard zippered bag with a few more bags. 
Included were:
- Shaped parts for assembling the plexiglass case. 
Parts are covered with paper to protect against scratches. 
- Payment.
Made to a high standard. All holes are metalized. 
- Power USB cable. 
- Instruction. Photocopy in poor quality. 
If anyone needs it, you can take a look.
Four in one indicator. 
- The indicator was with a protective film.
The most important is the STC15W404AS microcontroller and the DS1302 real time clock chip. 
Small things in bulk:
backup power box, buzzer, resistors, capacitors, two buttons, quartz, power connector, four screws with nuts, thermal and photoresistor. 
All the details on the board are not only signed, but also (conditionally) drawn.
Started with resistors and capacitors. 
Added panels and quartz. 
More bulky details went into business. 
Soldered the box for backup power. Should have done this a little earlier. Soldering was uncomfortable. 
I put the chips in the sockets. 
Soldered the thermistor and photoresistor. 
I wiped the board, checked the soldering, bit off everything that was strongly protruding. I don’t want to bite off the most. Otherwise, there will be problems with assembly into the case. 
Soldered indicators. How to solder, everything is indicated on the signet. Difficult to confuse. 
Connected.
They work! 
I sanded the plexiglass and assembled everything in the case. 
And here are the dimensions 62 * 35mm. 
Digit size 10*20mm.
It's time to explore their possibilities.
The clock is assembled and working, but it needs to be adjusted.
Time corrected by .
The first step is to reset all settings. Otherwise, they cannot be made to work adequately. Without this operation, my watch would not be adjusted. Either the wrong temperature will be shown (it was -7˚С a couple of times), then the day of the week is not set.
Press both buttons at the same time and hold. After 5 seconds, the clock will show 11:59, then (after another 5 seconds) 12:00 and beep the alarm. Now you can customize.
The setting can be divided into two conditional groups. We start all manipulations with the time indication mode, that is, when the clock shows the time.
First group of settings:
1. The first two presses on the top button will activate the clock setting. The first press is to set the hours, the second press is to set the minutes. Use the bottom button to set the desired value. 
A small addition. When setting the time, imaginary seconds (we do not see them) are reset to zero every time new time parameters are entered.
2. The next two presses (third and fourth) on the top button will activate the alarm setting. The third press is to set the hours, the fourth press is to set the minutes. Use the bottom button to set the desired value.
3. The next press on the top button (fifth) activates the alarm itself. A luminous dot in the lower right corner indicates that the alarm clock is on (turns on / off with the bottom button). 
4. The sixth and seventh presses adjust the hourly signal. The sixth press adjusts the time (hour) from which it starts. The seventh sets the time (hours) at which it ends. Use the bottom button to set the desired value.
Those. If the value is 8:20, it means that the hourly signal will sound from 8-00 to 20-00.
5. The eighth press activates the hourly signal. A luminous dot in the lower right corner (in the settings) indicates that the hourly signal is on (turns on / off with the bottom button). 
Second group of settings:
1. Press the bottom button. The watch enters temperature display mode. Here you can calibrate (correct) the temperature using a reference thermometer. 
Use the top button to adjust to the desired value.
2. A second press on the bottom button will take you to the month and date setting. Use the top button to activate the change of the month. Use the bottom button to set the desired value.
The next press on the top button takes you to the date setting. Use the bottom button to set the desired value. 
3. The next press on the lower button switches to the setting of the day of the week. 
A bit complicated. Therefore, in order not to carry out similar manipulations every time after a power outage, it is better to buy and immediately install a backup power supply (CR1220).
A few words about the light sensor. There are only two modes: day and night. 
The controller controls the brightness mode depending on the voltage on the 9th leg. Switching occurs at a voltage of about 4.3V-4.6V with a small hysteresis. At a voltage of more than 4.6V, an economical backlight is turned on, with a decrease of 4.3V, it turns on at full brightness. Hysteresis is necessary so that the brightness does not switch randomly at the border of illumination in twilight lighting. It is formed by a divider from a resistor R1 (10 kOhm) and a photoresistor R4.
I measured the current consumption in various modes. I think this information will be of interest to many. 
In normal mode, it consumes 26-33mA. Depends on the number of indicator segments involved (roughly speaking, 2mA per segment). In night mode, the current consumption drops to 10-11mA.
Regarding the display mode.
In normal mode (factory settings), the clock shows 45 seconds time, 5 seconds temperature, 5 seconds month/day, 5 seconds day of the week.
It can be changed by connecting pins 6 and 7 of the microcontroller to ground (GND).
If you connect the 6th leg and GND, the clock will show 50 seconds of the time, 5 seconds of the month / date, 5 seconds of the day of the week. If you connect the 7th leg and GND, the clock will show 55 seconds of time and 5 seconds of temperature. If you connect both legs (and 6th and 7th leg) to GND, the clock will only show the time.
Everything is provided on the board. It is enough to hang the "snot" in the right place. 
A few words about the accuracy of the course. This instance ran away for 6 seconds in a week. I think it's not bad (sometimes better, sometimes worse). It all depends on quartz.
To increase the contrast of the numbers and not see empty segments, I inserted a piece of tinted plastic. 
Here, in general, that's all.
It's time to sum up.
A good DIY kit for beginner radio amateurs to test their skills. Moreover, this is not just a set for training, but in the end it turned out to be a good watch.
For the correct conclusion of what he wrote, it should be enough.
If something is not clear, ask questions. Hope it helped at least someone.
Good luck!
The product was provided for writing a review by the store. The review is published in accordance with clause 18 of the Site Rules.
Often reading this site, I came across quite interesting radio designers. And since I used to do a little amateur radio, I decided to remember my hobby and buy something interesting.
Of all the designers, I liked the watch, which, moreover, according to the seller, can pronounce the time.
And since there was no review on the talking watch before, I decided to talk about my purchase.
Of course, there were a lot of reviews on similar designers, but these are slightly different.
The seller sent the designer quickly enough and he came in a standard white bag: 
Inside, another package was found, in which all the components are located: 
After unpacking this package, we find 3 more packages inside: 
In the white package there is a speaker, in the next package there are loose elements, and the third one contains elements for assembling the case.
Speaker 0.5W and 8 ohm + 2 pieces of wire: 
Then I unpacked the middle package:
The first thing that caught my eye was 3 microcircuits and panels for them, stuck with legs into polyethylene foam for protection: 
4 large LED indicators and tint film for them: 
Packet with radio elements: 
In a bag: 2 sets of resistors - 10K (9pcs) and 300 Ohm (9pcs), 1 thermistor, 1 powerful LED, 1 photoresistor, 1 clock quartz, 3 buttons, 1 power connector, 5 transistors - 8550 , 6 ceramic capacitors, 1 electrolytic capacitor - 470 uF, platform for installing a rechargeable battery - CR1220. 
A bag of screws and nuts for assembling the case: 
High-quality double-sided printed circuit board: 
And the last is the instruction in English: 
The instruction is in principle understandable, if it were not for a low-quality photocopy. Somewhere there is no text at all.
Assembly takes place in several stages:
1. We solder all the resistors, and R18-R13 are 10K resistors, and R1-R7 are 300 Ohm
2. Install 2 capacitors C2 and C4 with a capacity of 22pF
3. Quartz resonator
4. 3 capacitors marked 104 in places C1, C2, C3
5. Solder the holder for the battery and LED
6. We solder 3 sockets for microcircuits according to the installation key
7. Solder 3 buttons
8. 5 transistors, you can't go wrong here, because how to install it is drawn directly on the board
9. We put the electrolytic capacitor
10. Power connector
11. Photo and thermistor. You need to put them strongly without cutting the legs, having previously estimated how they will stand in the case.
12. Be sure to solder the wires under the speaker, otherwise, after installing the indicators, you can’t crawl there
13. We solder the LED indicators. Be sure to look at the location of the points, because. The 3rd indicator is point up.
14. Insert chips
15. We solder the speaker.
All the basics are assembled, now you can turn it on and check: 
The first time he turned on the power, the clock blared something and seemed to work as it should: 
They don’t work right away, so according to the instructions, to put everything in order and reset, you need to hold down all three buttons. This will reset the time to 12:00.
Well, in order for the settings not to be reset, you need to buy a CR1220 battery, otherwise it’s a torment to set everything every time. At the same time, it’s better to buy it in China, where it costs a penny, but here I gave 200 rubles for a varta, PPC is simple. 
Next, unpack the body parts and clean them from paper: 
We get transparent parts and assemble the case, everything is intuitive here: 
When assembling, we combine the speaker with the holes in the case, and because. I didn’t think of anything better; I glued it with hot glue: 
We assemble to the end, installing a tint film in front of the indicators and twisting. 
As a result, in about 1-2 evenings, you can easily assemble a quite nice and functional watch. 
Further on the functions, what they can do:
1. It is natural to show the time :)
2. Show temperature
3. Show the year, date and day of the week for the account. At the same time, it can periodically scroll changing, depending on the clock setting, after about 5 seconds, the temperature, date and clock readings
4. Say hourly time, the time at which the clock will do this can be set
5. There is one alarm clock
6. By pressing the top button, the watch can say the current time
7. You can turn on the LED, getting, as it were, a night light mode
I will not describe in detail how everything is turned on and configured, because. buttons on functions and operation are no different from the operation of the clock already reviewed here earlier.
Differences are only in one more button - the top one, with a short press on which the time is pronounced in English, and with a long hold, the LED lights up and the clock illuminates the room like a night light. 
The upper right button cycles through the clock settings, and the lower right button sets the values.
If you immediately start pressing the lower right, then you can sequentially sort through the readings: temperature-year-day and month-day of the week according to the account and time again. In this case, by pressing the upper right button, you can correct the readings.
Well, according to the sensors, I’m not sure that the temperature is 100% accurate, it can be adjusted, the light sensor works perfectly, dimming the display brightness to a comfortable one in the dark.
So the pros:
1 Very interesting kit for assembly
2. Quality board and parts
3. Does not require special knowledge except for the ability to solder and direct hands
4. The watch is big-eyed and visible even from afar
5. Excellent display dimming function in the dark
6. Hourly voice alert in English
7. Useful night light function
8. There is an alarm clock
Minuses:
1. After a month of work, the speaker was covered, which, however, was decided by installing a new suitable
2. The design does not provide for fastening the speaker, you have to collective farm
3. You have to come up with an external power supply, because. There is no power supply in the kit, although for such a price you should not expect :)
4. A watch battery is expensive, we could use a more common option like in computers.
Well, as an addition, who is interested, and to listen to how the clock is chatting, I bring the assembly video:
Part 1 Unpacking and soldering
Part 2. Assembly in the case and overview of functions
I am not a super professional in radio design, I could make some mistakes. I'm just an amateur.
I hope you liked the reviewer, thank you for your attention :)
With the growth of progress and the improvement of technology, it became possible to create that could accurately maintain time in a wide range of conditions. Since the time base has switched from mechanical to electrical, the time display must also follow this principle. That is, move from boring arrow options to more modern ones.
Digital watches are one of the most popular things in the world today. They are literally everywhere! On your hand, on the table, in the kitchen at the stove and even in the hallway! They have become more popular than the older mechanical clocks now known as analog clocks.
The time received by the analog clock came from either a pendulum or a spring. Pendulums are unsuitable for use on moving platforms such as a ship, and the springs unwind more and more slowly as they release stored tension.
Devices called "segment displays" were designed to display the time digitally. And although now the range of digital watches is quite large, you have the opportunity to create your own, electronic watch with your own hands! And not just a watch that would serve as a chronometer, but a watch made by yourself!
This designer watch is equipped with a special sensor that will allow you to display the temperature in real time! No wonder their second name is a desktop electronic clock with a thermometer. These diy kit clocks can be assembled with your own hands literally from improvised means. All you need is a soldering iron, flux, solder and a bit of knowledge on how to use these things. Also, don't forget to follow safety precautions.
and won't take up much of your time. On average, the required time is 30-90 minutes, depending on soldering skills. Do-it-yourself watches from improvised materials, you can assemble not only yourself, but also together with your son or relatives.Or you can even gather a group of friends and make a whole entertainment out of the assembly! Yes, the process is not fast, but what emotions await you when a watch made by yourself starts working!
This set, after assembly, will replace your conventional LED table clock. They can be a great gift for a novice ham radio enthusiast, a physics lesson guide, or just a fun building kit to make with friends.
Having made a clock on a microcontroller with your own hands, you will receive a multifunctional device that, in addition to displaying the time, can also show the temperature.
By making a DIY clock for the kitchen, or replacing your regular home clock, you can pleasantly surprise your friends, wife or loved ones when they see such a powerful and cool device. If you have a question: "How to set up a led clock?". It's all very simple! After you assemble the LED clock with your own hands, following the instructions. There will be special buttons on the case with which you can, without any problems, set the required time.
You know what they say: “The best gift is a handmade gift”. The way it is! This set will help you make a watch that you can later give to anyone! After all, this is not just a trinket, it is a functional device that brings benefits! Led desktop clocks are powered by 5 volts and consume only 50 mA, which will allow them to work from a USB port, power bank, etc.
Due to the very low power consumption, they will work for an impressive amount of time! This will make them a great electronic thermometer clock for the home. And the ability to receive power from the usb port will keep them working even when your electricity is turned off.
Desktop electronic clock with thermometer
Diy clock is a desktop electronic clock with a thermometer. Which are an electronic watch designer, for DIY assembly. The kit contains all the necessary components.
They are based on a microcontroller, so assembling them will not be painful and difficult, due to the fact that most of the functions fall on the microcontroller itself.
All you have to do is connect the components in the correct order, into the correct sockets on the PCB, and solder the components. Desktop digital clock with backlight is equipped with powerful digital segments, with LEDs, which allows you to clearly see the information even in.
You can buy diy clocks in our online store at a very reasonable price. They make a great gift for a beginner radio amateur. For their cost, they can easily replace the old analog clock and bring a lot of positive emotions from interacting with them.
Peculiarities:
- Have a small size;
- Clear numbers that are visible even in bright light;
- The presence of a thermometer;
- Quickly assembled with their own hands;
- Transparent case;
Characteristics:
- Display: 4 digit LED;
- Power: 5V;
- Power consumption: 50 mA;
- Weight 82g;
Equipment:
- 1x Clock assembly kit
Attention!
To assemble this designer watch, you need minimal knowledge in electronics. And also: skills in working with a soldering iron, flux, solder. A multimeter is highly recommended. Observe the safety precautions when assembling this clock, as the soldering iron has a high temperature. We would like to draw your attention to the fact that the color of the printed circuit board may differ depending on the revision (be white or yellow). This does not affect the functionality of the device in any way.
