HiLetgo 0.56 Inch 4 Bit Red Digital Tube Electronic Clock DIY Kit Clock Electronic Production Suite Time Chip AT89C2051 FR-4

3.6 3.6 out of 5 stars | 32 ratings

Price: 9.49

Last update: 12-19-2024


About this item

A good exercise for students in electronic production
With second correction for precision calibration
Minute and second can be displayed independently
Two-Way alarm clock setting (can turn it off )
Time accuracy: error range ±1 second per 24 hours

Product information


Top reviews from the United States

Deoji
5.0 out of 5 stars Fun little build
Reviewed in the United States on April 2, 2024
These are fun to build for educational purposes or whatever. I used them to teach my kids how to solder. They had a blast. Only downside is they packed a ton of features into the clock so programming them is complicated enough that you better keep the instructions that came with them in a safe place if you wanna actually use the clocks. My kids don't really use them for that reason, but it was still fun to build and that was the reason I purchased them.
Craig Donor II
3.0 out of 5 stars No instructions in English, No instructions on how to use... here are your instructions!
Reviewed in the United States on January 6, 2017
Instructions were VERY poorly translated and hard to read. NOT a kit to give to a beginner or to someone that is just starting to learn. Once it was soldered together it did work flawlessly, but NO instructions were given on how to program the time and alarms. Here is the instructions for anyone else that may purchase this.....
As your looking at the LCD there are two buttons under the screen. The left button is S1, the right button is S2. S1 advances the sub menus, S2 changes the value.

Hold S1 to enter clock setting mode
"A" Set hour
"B" (looks like the number 8 on the screen) Set minutes
"C" Set Chime On/Off
"D" Set Alarm 1 On/Off
"E" Set Alarm 1 Hour
"F" Set Alarm 1 Minute
"G" Set Alarm 2 ON/OFF
"H" Set Alarm 2 Hour
"I" Set Alarm 2 Minute
Me
4.0 out of 5 stars Nice kit
Reviewed in the United States on August 17, 2015
Bought this kit to teach my 7 year old a little bit of circuitry and soldering. Kit had no instructions manual, thankfully component layout was easy to figure out. My little guy was able to complete this project and the clock fired right up. It was a bit hard to understand the function of the buttons but luckily someone else posted some info. A small battery pack would have been nice but the kit only cost $5. Will buy a battery pack and let my son upgrade the project. The lack of manual Delivery took a long time. Remove 1 star for Delivery and lack of manual.

FYI: The clock is military time which i thought was terrible at first but now i changed my mind because my son now understands what military time is and how to convert.

A - Hours (Military Time)
B - Minutes
C - Hourly Chime
D - Alarm 1 On/Off
E - Alarm 1 Hours
F - Alarm 1 Minutes (Military Time)
G - Alarm 2 On/Off
H - Alarm 2 Hours (Military Time)
I - Alarm 2 Minutes'
Najwah
1.0 out of 5 stars Valuable Lessons Learned
Reviewed in the United States on March 7, 2017
My son was disappointed because directions weren't included with the item. We resorted to YouTube to aid us in putting the clock together. After no directions, no step-by-step tutorial on You Tube; we satered and the project was an epic fail. I didn't bother contacting Amazon nor the company because my son learned a few valuable lessons. One, always purchase more materials than needed and two, in life and in science things don't always work out the way you've predicted. He still received a good grade because he was able to articulate that the project wasn't about the results, it was about the process. Thanks for contacting me, I hope my feedback was helpful.
engineerkaz
5.0 out of 5 stars Nice little inexpensive kit to reenter maker world
Reviewed in the United States on April 25, 2017
Nice little kit. Assembled in about 90 minutes, including a few breaks. Another 20 minutes troubleshooting (incomplete solder joints-not all segments illuminated. Unlike the first kit I purchased, this provides for soldering all on one side - facilitates checking and correcting. Emailed to request instructions, but did not wait to receive, just ran with it. If you are familiar with electronics and have basic soldering skills, this is a great kit. Can always search parts on line if you are not sure. Probably 4.5 stars, but Amazon does not provide for 1/2 stars. Lack of battery backup is a bit of a pain.
Charles P. Lotz
5.0 out of 5 stars the instructions were poor. If you are familiar with electronics assembly
Reviewed in the United States on January 15, 2017
Purchased as a gift for a colleague. Note that no instructions are included, although the vendor sent them by email very quickly when asked. Even then, the instructions were poor. If you are familiar with electronics assembly, it will be no problem, but this is not a good beginner kit.

The finished product is quite pleasing, with more features than expected (although again, the instructions are poor). The included power supply was faulty, but the clock can be powered from any USB or other 5v source.
benjamin eby
5.0 out of 5 stars but easy to build and works
Reviewed in the United States on May 31, 2016
built this little kit for a bright clock to see at night - very bright and a little difficult to set, but easy to build and works great
J. S. Spence
2.0 out of 5 stars Read before you buy.
Reviewed in the United States on February 2, 2016
I really like the kit. Well made, fun to put together but without any instructions, how do you set the darn thing? Beats me! I thought I could figure it out but actually, "no. I couldn't".

Best Sellers in

 
 

Claydol 094/195 and Baltoy 093/195, Evolution 2 Card lot - Silver Tempest - NM/M

0 0 out of 5 stars 0
1.45
 
 

10pcs/lot E13007F2 MJE13007F2 TO-220F

0 0 out of 5 stars 0
8.93
 
 

不锈钢圆勺搅拌勺咖啡勺可印LOGO

0 0 out of 5 stars 0
1
 
 

Airdrop System for DJI Mavic 3 Pro/Classic Drone Fishing Bait Delivery Device Thrower Parabolic Prop Accessories

0 0 out of 5 stars 0
50.37
 
 

(5 Pack) 3HAC044075-001/01 7.2V 3600mAh Battery for ABB Robot CPU ABBTA521 ABB3HAC16831-1

0 0 out of 5 stars 0
159.69
 
 

Sylvania Bulb LED 3WAY SWHT 50/100/150W 42052

0 0 out of 5 stars 0
7.69
 
 

Seamless Straight Tubing, 2 Pcs 6063 Aluminum Alloy Tube Round Straight Tools for Robots Bearing Seats OD 32mm

0 0 out of 5 stars 0
 
 

5pcs/lot SN74LS154N HD74LS154P 74LS154 DIP-24 Narrow-Body Non-Wide Body Package

0 0 out of 5 stars 0
10.51