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TJ-56-513B Heart Shaped 4-Digit DIY Clock Kits with Rotating LED Lights, SMT/SMD Soldering Practice Kit, DIY Soldering Projects for College High School Education Learning Electronics

4.1 4.1 out of 5 stars 1,735 ratings

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Heart Shaped 4-digit Diy Clock Kits

Purchase options and add-ons

Brand MiOYOOW
Age Range (Description) over 13 years old
Item Dimensions LxWxH 3.9 x 3.9 x 1.1 inches
Educational Objective STEM

About this item

  • ♥【LED Heart Shaped Clock Kit】: The DIY electronic kits are used to installed to a Heart Shaped Rotating Led 4 Bit Digital Electronic Clock. Which can display current date, time, temperature in the real time, Alarm clock music. User can set alarm as your needs. This diy soldering kit is widely used in schools to help students learn basic mechanical and electronic skills. It's a great solder practice kit. Highly recommended to practice soldering skills enjoyably for you and your family.
  • ♥【Great School Science Project】: Improve your soldering skills and learn more about electronic components with MiOYOOW Electronic Soldering Kit! This kit is perfect for school science projects or family education. It's a fun and practical way to get hands-on experience in electronics while enhancing your knowledge of interesting electronic things. Start practicing today!
  • ♥【Heartwarming Handmade Gift】 Boasting 12 captivating LED animation effects, the final product doubles up as an exquisite piece of desktop art and a stylish accessory for homes, schools, or offices. The charming heart-shaped design of this clock kit makes it an excellent choice as a thoughtful gift for occasions such as Valentine's Day, Father's Day, Christmas, and New Year's Day.
  • ♥【Easy Assembly】: In addition to teaching basic mechanical and electronic principles, the led clock kit is easy to build and the principle is simple. The connection that was clearly mapped and labeled on the board. The diy soldering project is often used to teach basic soldering skills. No programming is required. But please note, this soldering kit requires certain foundation of basic electronic theoretical knowledge and soldering ability.
  • ♥【Functions & Features】: The 4-digit diy electronic clock can display Time, Date (year, month, day, week). It can also accurately measure temperature. Please note that for the first use, the temperature needs to be calibrated. The brightness can be set to automatically adjust, or you can manually adjust the brightness. With power-off memory and alarm clock function, the alarm clock can be turned on or off by yourself and contains 4 alarm clock music, the volume can be adjusted.
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Customer ratings by feature

Easy to assemble
4.2 4.2
Giftable
4.0 4.0
Value for money
3.8 3.8
For beginners
3.8 3.8
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TJ-56-513B Heart Shaped 4-Digit DIY Clock Kits with Rotating LED Lights, SMT/SMD Soldering Practice Kit, DIY Soldering Projects for College High School Education Learning Electronics

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TJ-56-513B Heart Shaped 4-Digit DIY Clock Kits with Rotating LED Lights, SMT/SMD Soldering Practice Kit, DIY Soldering Projects for College High School Education Learning Electronics
TJ-56-513B Heart Shaped 4-Digit DIY Clock Kits with Rotating LED Lights, SMT/SMD Soldering Practice Kit, DIY Soldering Projects for College High School Education Learning Electronics
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Price$17.99$12.99$12.99-8% $10.99
Typical:$11.99
$18.99$9.99
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it Apr 2 - 11
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Easy to assemble
4.2
4.2
3.9
4.0
3.4
Giftable
4.0
4.4
3.6
3.6
3.5
Value for money
3.8
4.2
4.3
4.3
4.1
For beginners
3.8
4.6
4.2
3.5
4.2
Instruction quality
3.3
3.2
2.0
Sold By
WHDTS
Learn to Solder Kits
icstation
WHDTS
WHDTS
tingbowie
material
Acrylic
Metal
Plastic
fiberglass
Silicone
age range
over 13 years old
Recommended Age 14+
Adult, Youth
over 13 years old
over 13 years old
Kid
educational objective
STEM
STEM
electronic
STEM
soldering skills
soldering skills

From the brand


Product Description

Make Your Own Electronic Clock

DIY Clock Kit

Optional 4 Alarm Clock Music, Wake You Every Morning, Never Miss Any Important Event

Alarm Clock Kit

4-Digit DIY Clock Soldering Kits

Clear Display

Adjustment Button

USB Cable Interface

Clear Display

4 digit yellow-green mixed color LCD display module which is specially for the LED clock kit.

Adjustment Button

1>.Press S1 button to display month-day, week, year.

2>.Press S2 button to display temperature, alarm time, minute-second.

3>.Short press S1 and S2 at the same time to switch the LED display mode.

USB Cable Interface

DC 5V mobile phone charger or computer power supply can be used, with a USB power cable, plug and play.

12 LED Lighting Effect

Set Method:

1> Keep press two buttons about 7 second enter into set mode.

2> Short press S1 button to switch set mode from Fu-1 to Fu-5. The parameter 1~5 will flash automatically.

2.1> Fu-1 mode: Set time in Hour: Minute.

2.2> Fu-2 mode: Set date in Month, Day and Year.

2.3> Fu-3 mode: Set alarm time in Hour: Minute.

2.4> Fu-4 mode: Set Hourly Report, Display Mode, Set Brightness.

2.5> Fu-5 mode: set Alarm Clock Music, set Volume.

3> Short press S2 button to selected mode.

4> S1 button is used to change value.Note: The value just can increase and then start to increase again.

5> S2 button is used to set parameter or confirm selected.

Enjoy the Electronic Clock Made by Yourself

Heart Shaped DIY Clock

Circuit Board

User Manual

Heart Shaped DIY Clock Kit

The finished science project is a heart shaped digital clock. Not only to improve your soldering skills, you will also will be more familiar with electronic components and learn more interesting electronics things.

Circuit Board

The package is DIY kits, not finished product. High quality PCB board, has clearly marked the electronics components, even beginners can easily solder successfully.

HOW TO GET USER MANUAL

Please download the User Manual before installing (we have uploaded the user manual on the Amazon page at Product guides and documents).

Perfect Gift

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DIY Ḅḷueṭooṭḥ Speaker Kit 76-108MHz FṂ Radio Soldering Project Digital Clock Kit DIY Ferris Wheel Kit LED Desk Lamp DIY Kit DIY Speaker Box Kit
Customer Reviews
3.8 out of 5 stars
201
3.7 out of 5 stars
189
4.1 out of 5 stars
1,735
4.1 out of 5 stars
44
4.2 out of 5 stars
168
4.1 out of 5 stars
19
Feature Ḅḷueṭooṭḥ Speaker FṂ Radio with LED Display and Headphone Jack 4digit Rechargeable Clock Rotating Ferris Wheel LED Desk Lamp 2 Channel Speaker Box
Work Voltage DC 3.7V-5V DC 3.0V~5.0V DC 5V DC 4.5V-5.5V DC 3.7V-5V DC 5V
LED Music spectrum display LED Tube No 12 LED Animation Effects 24 LEDs 2*5 LED Lights
Asembled Size 5.31" x 2.91" x 2.51" 4.64" x 3.43" x 1.06" 3.15" x 2" x 1.3" 5.9" x 5.9" x 6.69" 4.72" x 3.54" x 13.77" 2.75" x 2.75" x 2.55"
Soldering Type SMT/SMD Thru-hole SMT/SMD SMT/SMD Thru-hole Thru-hole

Product information

Technical Details

Additional Information

Warranty & Support

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Product Warranty: For warranty information about this product, please click here

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TJ-56-513B

TJ-56-513B Heart Shaped 4-Digit DIY Clock Kits with Rotating LED Lights, SMT/SMD Soldering Practice Kit, DIY Soldering Projects for College High School Education Learning Electronics


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Customer reviews

4.1 out of 5 stars
4.1 out of 5
1,735 global ratings

Customers say

Customers like the quality, fun, and visuals of the science fundamentals kit. They mention that it's a good kit with no issues, and that it makes for a cool clock. They appreciate the appearance. However, some customers have issues with the display. Opinions are mixed on ease of assembly, performance, and value.

AI-generated from the text of customer reviews

208 customers mention150 positive58 negative

Customers like the quality of the science fundamentals kit. They say it's a good kit with no issues for an intermediate or very-careful beginner. They also say it is a nice soldering project and a great kit to learn about electronics. Customers also mention the parts in the kit are of good quality and the PCB is high quality epoxy/fiberglass and not phenolic.

"...found, however, the assembly instructions were easy to follow and very helpful. Again, though, it would have been easy to miss...." Read more

"...The PCB and the parts in the kit are of good quality – all of the components went onto the PCB with no issues and the board was very easy to solder...." Read more

"...discrete parts, the circuit board is clearly marked, the solder mask is of high quality, and I found no mistakes or errors in the circuit...." Read more

"...Not the right parts list, not the right instructions! The download here, very good directions... you can't go wrong...." Read more

79 customers mention79 positive0 negative

Customers find the science fundamentals kit fun to build, a good way to practice soldering skills, and an enjoyable kit to build. They also say it's a fun project to do with teens interested in learning about basic electronics. Some mention that the instructions are not clear enough. Overall, customers say the kit is a great and enjoyable way to learn about basic electronic components.

"...The clear housing makes for a great display piece, and it’s fun to be able to say, ‘yeah, I made that!’" Read more

"...This was still a good kit to practice soldering with and I would still recommend." Read more

"...The clock itself is odd. But it is good fun. Shows time, date, temp, and one more screen that I can't decipher for the life of me...." Read more

"...That aside, i am quite happy with this product and it is a great introduction to soldering." Read more

47 customers mention47 positive0 negative

Customers find the visuals in the science fundamentals kit to be pretty cool, interesting, and nice. They also say it's a great alarm clock that can be used to demonstrate soldering. Customers also mention that the clock is simple and transparent acrylic. Overall, customers find the kit to have great visuals and is a really neat novelty item to put in your window to display at work.

"...The clock itself is odd. But it is good fun. Shows time, date, temp, and one more screen that I can't decipher for the life of me...." Read more

"...It went together in about 45 minutes and has been reliably clocking time since I powered it up...." Read more

"...to learn about electronics, a way to learn about soldering, a great alarm clock that you can be proud to have built – THIS is the kit to purchase...." Read more

"...You even end up with a pretty cool clock at the end. It even measures temperature with a thermistor...." Read more

26 customers mention22 positive4 negative

Customers like the appearance of the science fundamentals kit. They say it looks complete, has a beautiful result, and the layout is very clean. They also mention that the project is well-laid out, with well-tinned pads and clear markings. The board is single sided and is richly silk screened to show the location and shape of each component.

"...Bottom line, this is a well-designed, well-produced kit that is well suited for a beginner in assembling and soldering kits...." Read more

"...I added the walnut base from scraps. Looks nice if I do say so myself........." Read more

"...no instructions for parts and values of resistor to place other wise looks good just have to hope one can assemble correctly without instructions" Read more

"...I brought another for my home. The result was beautiful." Read more

228 customers mention153 positive75 negative

Customers are mixed about the ease of assembly. Some mention that the project was easy to execute, the instructions are sufficient, and the rest of the soldering is easy. However, others say that there are no instructions for parts, there are good directions, and that the setup is unnecessary and a pain to do.

"This was a fun DIY project. The online PDF instructions were spot on...." Read more

"...The assembly instructions were clear with good photos, and because the schematic was included, I was able to trace thru how the clock works with my..." Read more

"...This makes for an unnecessarily complicated setup, and I was unable to figure out even how to set the time in the five or so minutes that I..." Read more

"...The download here, very good directions... you can't go wrong.The clock itself is odd. But it is good fun...." Read more

99 customers mention54 positive45 negative

Customers are mixed about the performance of the science fundamentals kit. Some mention that it works great the first time, while others say that it failed to work.

"...The assembled clock powered up successfully the first time and is working great!..." Read more

"...The only issue I had was upon final testing one of the LCD digits failed to work. This was a disappointment considering the time it took to build...." Read more

"...It works very well and I am satisfied with it. May buy another just for more fun. I added the walnut base from scraps...." Read more

"...If this part is in backwards, the clock probably won’t operate. The photo on page 5 is correct...." Read more

41 customers mention28 positive13 negative

Customers are mixed about the value of the science fundamentals kit. Some mention it's easy to assemble, inexpensive fun, and well worth it for anyone learning electronics. However, others say it'd be a waste of money and the PCB was a bit on the cheap side.

"...We found it to be an excellent value. I highly recommend it." Read more

"Overall, this is a good deal for $15...." Read more

"...The product itself is not great and the price is higher than if it was already assembled... But it is fun so i won't complain too much...." Read more

"...Overall I thought this was good value for money." Read more

25 customers mention6 positive19 negative

Customers are dissatisfied with the display of the science fundamentals kit. They mention that the numbers in the display didn't light, the digits were only partially lit, and the display struggles to be bright enough. Some say that the board works fine, but the bottom row on the displays doesn't lights up. They also say that it's a bit underpowered, and that the LEDs are bright and can be a little hard to read. Some customers also mention that segments of the clock don't properly light up, resulting in wrong outputs.

"...Don't panic when you first plug it in and the displayed digits are weird. This is normal and will go away once you set it." Read more

"...When the Hours:Minutes colon separator blinks, the last digit goes a little dimmer. Tiny complaint, but that's me.-..." Read more

"...Another thing i have noticed is that the number seven displays like a reverse C instead of looking like a 7 (or like an up side down L)...." Read more

"...The LED display is clear and bright. It is well thought out...." Read more

The best electronics kit on Amazon - make this in ten minutes!  LEARN ELECTRONICS - here is how!
5 Stars
The best electronics kit on Amazon - make this in ten minutes! LEARN ELECTRONICS - here is how!
This is a great kit to learn about electronics. Of all the kits available on Amazon this one is most likely the best for learning. It also ends up with a great clock. I have built three of them so that for my day job I can track my employees who are in different time zones.If you are looking for a way to learn about electronics, a way to learn about soldering, a great alarm clock that you can be proud to have built – THIS is the kit to purchase. It is the best one on Amazon. Look no further!I am using this in my university courses to get students exposed to circuit components and construction.Here is a portion of my lab assignment for this project that might help you build it.ToolsMake sure you have a• Soldering Iron• Solder• Small wire clippers• Optional – a silicon work mat (so you wont burn the surface you are working on)Here are ways to make your project NOT work.• Inserting certain components with the wrong polarity (in the wrong direction).• Cold solder joints.• Missing a solder connection.• Solder bridges (inadvertently connecting two solder pads on the back of the PCB).• Not inserting the power barrel connector all the way in.Layout the parts in the order that they will be installed.Build• Insert the two resistors and bend the leads to hold the resistors in place. They can be placed in any direction as resistors do not have polarity.• Install the two 30 pf ceramic capacitors and bend the leads to hold the capacitors in place. Make sure you put the right capacitors in the right locations.• Install the 104 pf ceramic capacitor and bend the leads to hold the capacitor in place. Make sure you put the right capacitor in the right location.• Install the 12 MHz crystal oscillator and bend the leads to hold the oscillator in place.• Solder all the leads to the PCB board. Remember to heat the board and the wire and not the solder. The solder will flow when the PCB connection and wire are hot enough. The connection should be shiny if a good solder connection has been made.• Clip all the leads.• Install the network resistor. The network resistor must be installed with the dot aligned with the mark on the PCB board.• Solder the network resistor’s nine pins.• Insert the DIP-20 IC socket. The DIP-20 IC socket must be installed with the notch aligned with the printed notch on the PCB.• Solder the 20 pins.• Insert the transistor. The transistor must be installed with the flat side of the transistor aligned with the flat side printed on the PCB. Bend the leads to hold the transistor in place.• Solder the three leads.• Clip the three leads.• Insert the two button switches. If they aren’t going easily in they are most likely being installed incorrectly.• Solder the eight pins.• Install the 10 uF 25V electrolytic capacitor. Electrolytic capacitors have polarity. The shorter leg goes into the shaded area on the PCB. Bend the leads to hold it on place.• Solder the leads.• Clip the leads.• Install the power socket.• Solder the three pins. These pins are close. Make sure there aren’t any solder bridges.• Install the buzzer. The buzzer has polarity. Insert the longer lead into the hold marked with a + on the PCB.• Solder the leads.• Clip the leads.• Insert the 4-bit display. Make sure there isn’t any Styrofoam on the leads. The display has polarity. Make sure the decimal points are toward the other components. The pins might need slight adjustment to fit into the holes.• Solder the ten pins.• Clip the pins.• Insert the IC making sure that the notch in the chip are aligned with the notch on the socket. Check that the pins are aligned with the sockets before pressing the chip firmly in place.• Remove the white sticker from the buzzer for a louder sound – it’s really loud with it off.• Plug the power cord into USB power and then plug the barrel connector into the clock. The connection is firm and might not be fully in place. If the clock turns off when you take your hand off the power cords then it wasn’t fully inserted.Consider covering the back with tape – like blue painters’ tape – to prevent shorting out the clock. Remember too, there aren’t any memory components so when power is removed and then reapplied the clock will reset back to 12:59.All in all, this project can be completed in fifteen minutes or less!
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Top reviews from the United States

Reviewed in the United States on December 23, 2021
Color: 4 Digit Multifunctional Clock KitVerified Purchase
Customer image
5.0 out of 5 stars Perfect Beginners’ Soldering Project!
Reviewed in the United States on December 23, 2021
This soldering kit was really fun to put together! I did so with my sister, who is just starting out soldering, and it was just about right for her skill level. There is a variety of resisters and capacitors, a transistor, and a couple of other parts, including a surface mount battery holder. This was fairly large, and quite easy for beginners to work with as well.

The only issue that I had was that the assembly instructions were sent to me via amazon support message stating that an error had occurred with my order. The link to the instructions pdf was a short hyperlink trail from that. Once found, however, the assembly instructions were easy to follow and very helpful. Again, though, it would have been easy to miss. They should at least include a QR code in the packaging that takes you to the pdf online.

Now, while the assembly was fun and straightforward, the usability of the clock is not so great. The UI is composed of two buttons and a 4 digit lcd, and there are way too many features packed in. This makes for an unnecessarily complicated setup, and I was unable to figure out even how to set the time in the five or so minutes that I attempted to do so...

Granted, I was in a hurry, and when I get back to it, I don’t doubt that I will figure it out, but the confusing experience did leave me a bit annoyed.
On the plus side, there is a small battery onboard that keeps the time, so you don’t need to worry about keeping it connected to power.

Overall, as a useful clock, it does leave something to be desired, but I don’t think that that was ever the intention. As a soldering practice kit though, this is a great beginner project, and I would definitely recommend! The clear housing makes for a great display piece, and it’s fun to be able to say, ‘yeah, I made that!’
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One person found this helpful
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Reviewed in the United States on February 25, 2024
Color: 4 Digit Multifunctional Clock KitVerified Purchase
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4.0 out of 5 stars Fun project with some quality issues
Reviewed in the United States on February 25, 2024
This was a fun DIY project. The online PDF instructions were spot on. The only issue I had was upon final testing one of the LCD digits failed to work. This was a disappointment considering the time it took to build. I guess this is to be expected with mass produced components. This was still a good kit to practice soldering with and I would still recommend.
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One person found this helpful
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Reviewed in the United States on January 23, 2024
Color: 4 Digit Multifunctional Clock KitVerified Purchase
Reviewed in the United States on June 18, 2019
Color: 1 Pack-4 Digit Clock Kit(0.56 Inch)Verified Purchase
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5.0 out of 5 stars A very nice beginner kit that goes together easily and works very well!
Reviewed in the United States on June 18, 2019
I bought this kit as a father-son project. He is a typical teenager – loves technology and is very curious to know how things are built and how they work. We were both really excited to receive this kit.

The kit was shipped to us in a padded envelope and arrived on-time in perfect shape. As shown in the photo, it came packed in a small cardboard box. The box is a great place to store the components as you put the clock together.

On the day the kit arrived, I was very impressed to receive an e-mail from the seller with a link to a PDF instruction manual. The manual contains assembly instructions, a parts list, operation instructions, and a schematic. The assembly instructions were clear with good photos, and because the schematic was included, I was able to trace thru how the clock works with my son.

The clock is well designed – it’s based around an STC11F02E microcontroller that is clocked by a 12 MHz crystal. The display is a 4-digit LED display and includes a proper voltage dropping resistor array to ensure that the LED display is run within its maximum ratings. The board runs off of a +5VDC supply and includes proper filtering and bypass capacitors.

The PCB and the parts in the kit are of good quality – all of the components went onto the PCB with no issues and the board was very easy to solder. My son did most of the soldering himself and he’s rather new to soldering. This board would be a very good kit to hone your soldering skills if you are a beginner at soldering.

The assembled clock powered up successfully the first time and is working great! We were able to set the time and turn the alarms on and off without any problem. So far, it is keeping good time, neither losing nor gaining any time in the three days it has been powered on. The alarm is quite loud, so if you wanted to, you could use this as your main alarm clock.

Bottom line, this is a well-designed, well-produced kit that is well suited for a beginner in assembling and soldering kits. We found it to be an excellent value. I highly recommend it.
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34 people found this helpful
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Reviewed in the United States on February 14, 2024
Color: Colorful 4 Digit Clock KitVerified Purchase
Reviewed in the United States on March 6, 2024
Color: 4 Digit Rechargeable Clock KitVerified Purchase
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1.0 out of 5 stars Doesn’t Work At All
Reviewed in the United States on March 6, 2024
Bought one originally that was defective and now the replacement is also defective. I’ve done numerous SMD boards and had no issues. This is the first one to give me issues. I also keep getting incorrect parts that don’t match the directions. The directions say to use a 122 resistor which isn’t provided. There is a 112 resistor included which has no mention in the directions. This is a poor product to sell anyone at any level. I will be returning both for a full refund.
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Top reviews from other countries

Translate all reviews to English
JASPER
5.0 out of 5 stars Very fun and satisfying project
Reviewed in Canada on April 13, 2022
DJPapaSean
4.0 out of 5 stars This was such a fun project
Reviewed in Canada on March 4, 2021
Color: 6 Digit Clock Kit(0.56 Inch)Verified Purchase
Biju V P
1.0 out of 5 stars not good product
Reviewed in India on March 24, 2020
Color: 1 Pack-4 Digit Clock Kit(0.56 Inch)Verified Purchase
Stanica
3.0 out of 5 stars Good soldering practice, but not for a first attempt
Reviewed in Canada on July 2, 2021
Color: 6 Digit Clock Kit(0.56 Inch)Verified Purchase
Pascal
5.0 out of 5 stars bon ti projets
Reviewed in Canada on January 30, 2021
Color: 1 Pack-4 Digit Clock Kit(0.56 Inch)Verified Purchase