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DIY Calculator Counter Kit with Acrylic Case LCD Display Multi-purpose Electronic Calculator Counter Electronics Computing

DIY Calculator Counter Kit with Acrylic Case LCD Display Multi-purpose Electronic Calculator Counter Electronics Computing

4.4
(29 Customer Reviews) |Ask A Question

|Item#: E2784

| (0)

Price:

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18.59

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With this DIY calculator counter kit, you can make a colorful LCD calculator counter by yourself. This electronic calculator is displayed with LCD1602, which is very nice and cool, also with practical function. It's especially suitable for electronics DIY enthusiasts. This calculator plays a big role for common arithmetic operation and electronic computing, such as calculation of color ring resistance, calculation of LED current-limiting resistance and the conversion of hexadecimal number.

Features:
Great DIY calculator counter kit for electronic enthusiasts, easy to install.
A great DIY toy for electronics enthusiast and DIY enthusiast.
Blue LCD display with auto power off function in 30 seconds.  
Specially designed to calculate all kinds of math calculation and use for electronics researcher.
2 CR2030 button batteries for power supply, convenient and quick for use.
With acrylic housing, components can be well protected and the LCD calculator counter looks stylish.

Function:
1: Decimal arithmetic operation with decimal point and negative numbers calculations. 
2: Calculation of 4 ring resistance or 5 ring resistance. 
3: The calculation of LED diode current-limiting resistance.
4: Decimal number - hexadecimal number conversion and hexadecimal number - decimal number conversion.
5: Square root calculation.

Specifications:
Material: Acrylic Board + PCB Board + Electronic Components
Power Supply: 2 * 3V CR2030 Button Battery (NOT Included)
Auto Power off: In 30s without Operation
PCB Board Size: 120 * 68mm / 4.72 * 2.68in
Finished Product Size: 131 * 91 * 37mm / 5.16 * 3.58 * 1.46in
Product Weight: 187g / 6.60oz
Package Size: Approx. 15 * 12 * 4cm / 5.91 * 4.72 * 1.57in
Package Weight: 197g / 6.95oz

Installation Method: You will get a bulk DIY kit, all components need to be soldered by yourself. The shell is acrylic material, fixed with screws. Provide with installation instructions.

Package List:
1 * DIY Calculator Counter Kit (Battery Not Included)
1 * User Manual (English)

Questions & Answers

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Customer Questions & Answers

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0 votes
Q

Are 'Batteries required', because technical information says "NO"?

A

  • Yes, it requires 2 CR2032 button cell batteries. The instructions have an incorrect listing for the battery.

    By mitchell kramer on April 19, 2018

See more answers (1)
votes
Q

What size phillips screwdriver does it require for assembly?

A

  • I used a size 1 phillips screwdriver without a problem.

    By jh on July 13, 2018

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    Customer Reviews

    Average Rating:

    4.4

    based on 29 Customer Reviews

    • 5 stars
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    • By Travis

      March 25, 2020

      It will only show about 5-6 digits. If you multiply 12345 x 12345, you will get an error. Otherwise it is good for soldering kits.

      Is this helpful? (0) (0)

    • By Bridgett

      March 24, 2020

      I bought this calculator and haven't changed it till now. I need it very much and it helps me a lot.

      Is this helpful? (0) (0)

    • By Thomas

      March 24, 2020

      It's fun to put all these switches together. It has an 8051 microprocessor, so if I want to take the time to learn how to program them, I could make it a better calculator. It's okay

      Is this helpful? (0) (0)

    • By Robert

      March 21, 2020

      Missing parts ... Spare parts I got from myself, but the kit still malfunctions. When power is applied, the screen lights up, but no numbers appear. Goes to sleep after 30 seconds without entry. This part of the operation is correct, but there is no digital display. I could spit another $ 12 to see if I'm unlucky ... As a kit, this one is fine. The instructions through QR are really very good in this tool. New enthusiasts will appreciate it.

      Is this helpful? (0) (0)

    • By Griselda

      March 20, 2020

      To save battery power, this calculator automatically turns off the power. This feature is friendly, environmentally friendly and energy efficient.

      Is this helpful? (0) (0)

    • By Adrian

      March 17, 2020

      Very easy to assemble. I'll show the header connector slanted on the board and soldered at that angle. This way, I don't have to bend the pins. However, if you forget, just bend the plug pins one by one. Entertainment kit Fun to use. Power saving shutdown time is good for me.

      Is this helpful? (0) (0)

    • By Douglas P.

      March 16, 2020

      This is definitely a great gadget. I'm not sure how much use I would get from it, but it looks great, I like to build it, and I show everyone who proves it that I'm some kind of genius lmao.

      Is this helpful? (0) (0)

    • By Randall P.

      March 16, 2020

      I like the appearance of this calculator and the fact that it can calculate resistance values ​​based on color codes. This feature will save me a lot of web searches. I also like converting from decimal to hexadecimal. It won't bring much change in actual usage, but I hope it can handle values ​​of more than 7 digits. There should be space on the screen for two lines. I modified my phone with a micro USB connector so I could run it with a phone charger instead of running out of battery when I placed it next to a dozen sockets on the table. This is easy because there is a two-pin power connector on the PCB that is not populated by default. Just add a plug header and plug it in, and no batteries needed! The hardest part was modifying the acrylic box to make room for the socket because it was so fragile, but I managed to do it without much damage. Interesting little project in general. I recommend.

      Is this helpful? (0) (0)

    • By Megan

      March 13, 2020

      My 12-year-old really enjoys using this calculator, and it's really practical, I like it so much that I don't want to change another one.

      Is this helpful? (0) (0)

    • By Bryan

      March 11, 2020

      A great toolkit and great value. Build fun. Acrylic boxes are very attractive.

      Is this helpful? (0) (0)

    • By ***

      February 15, 2019

      Was a bit surprised it only supports seven digit entries. Otherwise the kit went together quickly and easily. It was a no-brainer. The resistor color band “decoding” is a neat feature. This thing really appeals to my inner nerd.

      Is this helpful? (0) (0)

    • By m***y

      June 8, 2018

      after replacing bad regulator, works as advertised.

      Is this helpful? (0) (0)

    • By r***b

      May 31, 2018

      Arrived faster than expected, well packaged, all good, thank-you

      Is this helpful? (0) (0)

    • By k***c

      May 31, 2018

      Arrived as described. Excellent packaging. No missing pieces.

      Is this helpful? (0) (0)

    • By e***6

      May 25, 2018

      Item well packed and as described. Many thanks!

      Is this helpful? (0) (0)

    • By l***o

      April 26, 2018

      Fast and nice secure packing. I will bye one more fore sure :-)

      Is this helpful? (0) (0)

    • By a***r

      April 23, 2018

      after soldering worked, but assembling enclosure is little bit tricky, thank you

      Is this helpful? (0) (0)

    • By g***s

      April 19, 2018

      Happy with product and service.

      Is this helpful? (0) (0)

    • By g***e

      April 6, 2018

      Fast shipping, Smooth transaction, Thanks.

      Is this helpful? (0) (0)

    • By m***c

      February 21, 2018

      Fast shipping, perfect seller, thank you very much !

      Is this helpful? (0) (0)

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