4PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (12Key)
genuine image
4PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (12Key)
The keyboard matrix allows you to quickly add controls to your electronic projects.
4PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (12Key)
Vare #: 227431720

4PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (12Key)

Vare #: 227431720

DKK 175

Prisdetaljer

Eksklusive forsendelses- og toldgebyrer ( Forsendelses- og toldgebyrer beregnes ved checkout )

*Alle varer importeres fra US

På lager
US Importeret fra USA butik
Bestil nu og få den omkring Onsdag, September 09
Sikker transaktionSikker transaktion

Ubuy arbejder hårdt for at beskytte din sikkerhed og dit privatliv. Vores avancerede betalingssikkerhedssystem sikrer fortrolighed ved at kryptere dine oplysninger under transmission ved hjælp af AES (Advanced Encryption Standards) og SSL (Secure Socket Layer) protokoller. Dine betalingsoplysninger er 100% sikre, da vi ikke deler dine betalingsoplysninger med tredjepartssælgere.

Vores bedste logistikpartnere
  • fedex
  • dhl
The keyboard matrix allows you to quickly add controls to your electronic projects.
U-Pleje garanti:
Ingen
Vælg en plan
fast shipping

Hurtig
levering

free return

Gratis
returnering*

Sikker emballering

Sikker emballering

100 % originale produkter'

100 % originale produkter'

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Køb nu.

Hvad der skiller sig ud

Compact Design
This 4PCS keypad module offers a compact design, ideal for space-constrained applications, making it perfect for DIY electronics projects or embedded systems.
Easy Integration
Designed for seamless integration with microcontrollers, the 3x4 matrix layout simplifies connection and programming, saving time for developers and hobbyists.
Durability
Built with quality components, this keypad ensures durability and reliability, providing long-lasting performance for various applications, from robotics to home automation.

Produktdetaljer

Shop 4PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (12Key) online at a best price in Faroe Islands. B0DFGM8ZPB
Compatible DevicesMicrocontroller-compatible devices
Connectivity TechnologyPS/2
Additional FeaturesMatrix Design
Switch TypeMechanical
Keyboard LayoutQWERTY
Hand OrientationAmbidextrous
Button Quantity12
Water Resistance LevelNot Water Resistant
Number of Keys12
Number of Sections1
ColorBlack
Style Name12Key
ThemeNumber
Enclosure MaterialPlastic
BrandSazkJere
Keyboard DescriptionNumeric
Antenna LocationOffice
Built-In Media4PCS External Keypad Board
Model NumberSJ64X4
Model NameSJ64X4
Unit Count4 Count
ManufacturerSazkJere
Number of Packs4
Number of Items4
Mfr Part NumberSJ64X4
Recommended Uses For ProductOffice
Special FeatureMatrix Design
Style12Key
MaterialPlastic
Included Components4PCS External Keypad Board
Item Weight0.2 lbs (90 grams)

Hvem bør købe?

Suitable For
  • Electronics Hobbyists

    Ideal for DIY projects where users need an external keypad for various electronic applications and microcontroller interfaces.

  • Educational Purposes

    A great tool for students learning about microcontrollers, keypads, and circuit design in electronics courses.

  • Robotics Projects

    Useful in robotics applications for user inputs, allowing control of various functions through keyboard commands.

Not Suitable For
  • Professional Applications

    Not suitable for high-end professional systems requiring robust, reliable input methods with extensive functionality.

Produktbeskrivelse

4PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (12Key)

Har du spørgsmål? Chat med os

Kundespørgsmål og svar

  • spørgsmål: What is a 3x4 Matrix Keypad and how does it work?

    svar: A 3x4 Matrix Keypad is an electronic component consisting of a grid of keys arranged in three rows and four columns, totaling 12 keys. Each key press is detected via a combination of row and column contacts that are connected to a microcontroller, facilitating user input for various applications. This setup allows for efficient scanning and minimizes the number of input pins needed for operation. Typical use cases include numeric inputs for devices like alarm systems, access control, or DIY electronics projects where a compact keypad interface is required.
  • spørgsmål: Can I use the 3x4 Matrix Keypad with different microcontrollers?

    svar: Yes, the 3x4 Matrix Keypad is compatible with a variety of microcontrollers, including popular ones like Arduino, Raspberry Pi, and PIC. The wiring typically involves connecting row and column pins of the keypad to the GPIO pins of the microcontroller. Given its adaptability, this keypad can be utilized in projects ranging from home automation systems to robotics, allowing users to create custom interfaces for various applications.
  • spørgsmål: What types of projects can the 3x4 Matrix Keypad be used for?

    svar: The 3x4 Matrix Keypad is versatile and can be employed in numerous electronics projects, such as alarm systems, code entry systems, remote controls, or as a user interface for embedded devices. By providing a straightforward way to input numbers or commands, hobbyists often incorporate it into Arduino-based projects or as a control panel for custom electronic designs, enhancing user interaction.
  • spørgsmål: How do I wire the 3x4 Matrix Keypad to my microcontroller?

    svar: Wiring the 3x4 Matrix Keypad involves connecting its 7 pins to the GPIO pins of your microcontroller. Typically, the keypad has 3 pins for rows and 4 pins for columns. You can designate any 7 digital pins on your microcontroller for this purpose. After connecting, programming libraries such as Keypad for Arduino can simplify the process of detecting key presses. This method ensures that your electronic project remains efficient while involving minimal wiring complexity.
  • spørgsmål: What features should I look for in a keypad module?

    svar: When selecting a keypad module, consider factors like key responsiveness, durability, size, and ease of integration with your existing components. A quality 3x4 Matrix Keypad will typically offer tactile feedback for each key press, ensuring a satisfying user experience. Moreover, compatibility with various microcontrollers and the availability of accompanying libraries can ease the development process for any electronic project you undertake.
  • spørgsmål: Is the 3x4 Matrix Keypad suitable for commercial applications?

    svar: Yes, the 3x4 Matrix Keypad can be suitable for commercial applications, particularly in products requiring numeric input, like point-of-sale terminals, appliance controls, or industrial equipment interfaces. Its compact size and simplicity make it a cost-effective solution for integrating user inputs into various electronic systems, thus enhancing product functionality in commercial settings.
  • spørgsmål: How durable is the 3x4 Matrix Keypad?

    svar: The durability of a 3x4 Matrix Keypad largely depends on its design and construction materials. Good quality keypads typically feature robust key switches and a well-designed substrate, allowing them to withstand frequent use. When used in applications that demand high reliability, such as security systems or user interfaces, selecting a keypad with proven durability is essential for maintaining operational integrity over time.
  • spørgsmål: Can I customize the key layout on my keypad?

    svar: Yes, you can customize the key layout on a 3x4 Matrix Keypad during programming. By modifying the code used to read inputs, you can assign different functions or outputs to each key according to the requirements of your project. For instance, you might want to create a custom command sequence for a home automation system, allowing users to control lights or appliances easily. This flexibility makes it an ideal choice for tailored electronic projects.
  • spørgsmål: Is it beginner-friendly to work with the 3x4 Matrix Keypad?

    svar: Absolutely! The 3x4 Matrix Keypad is designed for ease of use, making it suitable for beginners and seasoned developers alike. With tutorials readily available and libraries like the Keypad library for Arduino simplifying the coding process, newcomers can quickly learn to integrate this keypad into their projects. Whether you're creating your first electronic device or experimenting with more complex systems, it serves as a great introduction to keypad functionalities.
  • spørgsmål: Where can I buy the 4PCS 3x4 Matrix Keypad 12 Keyboard Module for Microcontroller in Faroe Islands?

    svar: You can purchase the 4PCS 3x4 Matrix Keypad 12 Keyboard Module for Microcontroller on Ubuy, a reliable online platform that offers a wide selection of electronic components and modules. Ubuy provides access to international shipping options, ensuring that you receive your keypads efficiently. Their user-friendly interface allows you to easily locate and order your required components for your projects.

SazkJere Access-Control Keypads SJ64X4 Editorial Review

**Editorial Review** The 4PCS 3x4 Matrix Keypad has garnered a significant amount of criticism from users primarily focused on its Construction and functionality. While some users acknowledge the adequate quality of the keypad in terms of mechanics and electrical design, a recurring theme in the feedback is the incorrect pinout provided with the product. This discrepancy has led to frustrations, particularly for those integrating the keypad into existing Arduino designs, necessitating rewiring efforts that complicate the setup process. A central issue that many customers encountered pertains to the button functionality. Multiple users reported that the keys failed to provide continuity, attributing this issue to a film covering the contact pads that prevented proper connection. Although a few users managed to salvage their experience by cleaning the pads, they noted that this resulted in unreliable performance rather than a Consistent response. Worse still, the printed circuit board's Construction was heavily criticized. Users highlighted that the copper traces were prone to breaking during soldering, indicating poor quality control during manufacturing. This defect made it exceedingly challenging for users to create reliable connections without damaging the board itself. Overall, the feedback paints a picture of a product that suffers from mechanical and functional inadequacies, making it difficult for users to recommend it for reliable applications in their projects. **

Kundeanmeldelser & vurderinger

1 kundebedømmelser
  • 5 stjerne
    100%
  • 4 stjerne
    0%
  • 3 stjerne
    0%
  • 2 stjerne
    0%
  • 1 stjerne
    0%

Anmeld dette produkt

Del dine tanker med andre kunder

Fordele

  • Adequate mechanical and electrical quality perceived by some users.

Ulemper

  • Incorrect pinout provided with the product.

Platformstillid & Køberens Tillid

trustpilot logo
4.2/5 9250 + anmeldelser
Læs anmeldelser
MA
Mohammad
Verificeret køber

“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
CK
Chitra
Verificeret køber

“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
K
kund
Verificeret køber

“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
OO
Onesi
Verificeret køber

“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verificeret køber

“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
Sikker betaling Global levering Nem returnering Originale produkter

Produktets prishistorik

Vigtig information

  • Begrænsninger: For produkter, der forsendes internationalt, bemærk venligst, at eventuel producentgaranti muligvis ikke er gyldig; producentens serviceordninger er muligvis ikke tilgængelige; produktmanualer, instruktioner og sikkerhedsadvarsler er muligvis ikke på destinationslandets sprog; produkterne (og det medfølgende materiale) er muligvis ikke designet i overensstemmelse med destinationslandets standarder, specifikationer og mærkningskrav; og produkterne opfylder muligvis ikke destinationslandets krav til spænding og andre elektriske standarder (hvilket kan kræve brug af en adapter eller transformer, hvis relevant). Modtageren er ansvarlig for at sikre, at produktet lovligt kan importeres til destinationslandet. Ved bestilling hos Ubuy eller dets datterselskaber er modtageren importøren og skal overholde alle love og regler i destinationslandet.
  • Det er ikke alle de produkter som vises på Ubuy som er til salg, idet Ubuy er en global søgemaskine. Produkterne er underlagt eksport-/handelsregler.

DKK 175

Bestil nu og få den omkring Onsdag, September 09

QTY:

Sikker transaktionSikker transaktion

PCI DSS-kompatibel og ISO 27001:2022-certificeret, med krypteret betaling og fuld køberbeskyttelse på hver ordre

Vores bedste logistikpartnere
  • fedex
  • dhl
Hurtigste grænseoverskridende levering

Egenskaber og fordele

  • 12-button keypad with numbers 0-9, *, and #.
  • Compact size of 7*5*1 cm and lightweight at 19g.
  • Easy integration with any microcontroller for seamless connectivity.
  • Ideal for applications like password security systems and gate lock keypads.
  • 3x4 matrix design for efficient input management.
  • Includes 4 keypads for multiple project uses.

Ubuy-garanti

Oplev bekymringsfri shopping med 100 % originale produkter, PCI DSS-kompatibel betalingssikkerhed, ISO 27001-certificeret databeskyttelse, den hurtigste grænseoverskridende levering, gratis returnering* og sikker emballage på hver ordre.