2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)
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2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)
The keyboard matrix allows you to quickly add controls to your electronic projects.
2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)
Artigo n.º: 137763184

2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)

Artigo n.º: 137763184

STD 429695

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The keyboard matrix allows you to quickly add controls to your electronic projects.
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O que se Destaca

Compact Design
The 3x4 matrix layout allows for efficient space usage, making it ideal for compact projects and devices without sacrificing functionality.
Easy Integration
Designed for seamless interaction with microcontrollers, this keypad simplifies the process of user input in embedded applications and DIY electronics projects.
Durable Quality
Built to withstand extensive use, this keypad module offers long-lasting performance, ensuring reliable operation in various applications from home automation to gaming consoles.

Detalhes do produto

Shop 2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key) online at a best price in São Tomé and Príncipe. B0DZ26VVR7
Item Weight0.1 lbs (50 grams)

Quem Deverá Comprar?

Suitable For
  • Hobbyist Programmers

    Ideal for DIY electronics projects, enabling hobbyists to create custom interfaces for their microcontrollers.

  • Educational Purposes

    Great for teaching electronics and programming, providing hands-on experience with input devices in projects.

  • Embedded Systems

    Perfect for embedded system developers needing compact and efficient input methods for various applications.

Not Suitable For
  • Professional Developers

    May lack advanced features and robustness expected in professional-grade input devices for serious applications.

  • High-Volume Production

    Not suited for high-volume products, as the keypad may not meet durability and quality standards for mass production.

  • Mobile Applications

    Less portable and not ideal for mobile use due to its board structure, unsuitable for pocket-sized projects.

DESCRIÇÃO DO PRODUTO

2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)

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Perguntas e Respostas dos Clientes

  • pergunta: What is a 3x4 Matrix Keypad?

    Resposta: A 3x4 Matrix Keypad is a type of input device that consists of 12 buttons arranged in a grid of three columns and four rows. Each keypress is detected using a matrix scanning technique, allowing for more compact designs. This keypad is commonly used with microcontrollers for projects where user input is required, such as home automation systems or payment terminals. Its straightforward design makes it an essential component for hobbyists and professionals alike.
  • pergunta: How do I connect the 3x4 Matrix Keypad to a microcontroller?

    Resposta: Connecting a 3x4 Matrix Keypad to a microcontroller typically involves connecting the keypad's rows and columns to specific GPIO pins on the microcontroller. You would set up your microcontroller's code to read the keypad's input by scanning the rows and columns to identify which key is pressed. This connection process is essential for integrating the keypad in projects like robotic controls or remote data input, enhancing user interaction.
  • pergunta: What type of projects can I use the 3x4 Matrix Keypad for?

    Resposta: The 3x4 Matrix Keypad is versatile and can be used in various projects such as security systems, home automation, and interactive displays. For instance, you can create a door lock system that requires a PIN input or a simple calculator project. Its adaptability makes it an ideal component for educational purposes in electronics and programming, enabling hands-on learning in robotics and automation.
  • pergunta: Is the 3x4 Matrix Keypad compatible with Arduino?

    Resposta: Yes, the 3x4 Matrix Keypad is highly compatible with Arduino boards, making it a popular choice for DIY electronics enthusiasts. There are libraries available that simplify the coding process, allowing for quick integration into Arduino projects. This compatibility opens doors to a multitude of applications, such as building a custom user interface for your Arduino-based project.
  • pergunta: What is the voltage requirement for the keypad?

    Resposta: The 3x4 Matrix Keypad typically operates at a voltage range of 3.3V to 5V, which aligns with most microcontrollers. Ensuring the voltage is within this range is crucial for optimal performance. This feature enables its use in a variety of low-power applications, such as battery-operated devices or wearables.
  • pergunta: Can I use this keypad with other microcontroller platforms?

    Resposta: Absolutely! The 3x4 Matrix Keypad can be used with various microcontroller platforms such as Raspberry Pi, PIC, and others. Adaptors or interface modules may be needed depending on the platform, but its universal design makes it a great option for multi-platform compatibility. This flexibility allows developers to work across different environments while maintaining a consistent user interface.
  • pergunta: What materials is the keypad made of?

    Resposta: The 3x4 Matrix Keypad is generally constructed from durable plastic for the keys and a flexible printed circuit for the connections. This construction ensures longevity and reliable performance under frequent use. The design also makes it lightweight, which is essential for integrating into compact electronic projects without adding unnecessary weight.
  • pergunta: How does the matrix scanning technique work?

    Resposta: The matrix scanning technique used in the 3x4 Matrix Keypad involves energizing one row or column at a time, allowing the microcontroller to detect which key is pressed by checking the corresponding row and column lines. This method reduces the number of input pins required, streamlining connections. It is particularly useful in applications where space is limited and multiple inputs are needed with minimal wiring.
  • pergunta: Is it possible to customize the key layout?

    Resposta: While the standard layout of the 3x4 Matrix Keypad features numerical keys, you can customize the physical layout by reassigning the pins in your microcontroller code. This customization allows you to create specific inputs for your projects, such as personalized function keys for advanced applications in industrial controls or unique user interfaces.
  • pergunta: Where can I buy 2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller in São Tomé and Príncipe?

    Resposta: You can purchase the 2PCS 3x4 Matrix Keypad 12 Keyboard Module from Ubuy in São Tomé and Príncipe. Ubuy provides a wide selection of electronic components, ensuring you can find the right products for your projects. Their platform offers easy navigation and reliable service, making it a go-to option for sourcing components needed for your electronics tasks.

SazkJere Access-Control Keypads Editorial Review

The 2PCS 3x4 Matrix Keypad has garnered a mixed reception from customers, reflecting a blend of practical usability and some underlying issues. While many users praised the build quality, responsiveness, and ease of integration into microcontroller projects, there were notable criticisms regarding the Consistency of their performance. Some users reported high contact resistance, which affected their ability to register key presses effectively. Despite these concerns, several customers found the keypads to be sturdy and well-Constructed, suitable for a variety of DIY projects and experimentation. They appreciated the clear labeling of buttons and the straightforward wiring process, which allowed for seamless incorporation into their designs without demanding excessive GPIO resources. Moreover, many have noted that ample resources and tutorials online can help guide users through the setup process, mitigating the need for detailed documentation with the product. The keypads have been particularly highlighted for their cost-effectiveness, providing value for users engaged in prototyping or those who want an extra keypad on hand. In summary, while the 2PCS 3x4 Matrix Keypad offers solid Construction and responsiveness for various applications, potential buyers should be aware of some variability in performance concerning the key presses and contact resistance. **

Avaliações e Classificações dos Clientes

5.0
1 classificações de clientes
  • 5 Estrela
    100%
  • 4 Estrela
    0%
  • 3 Estrela
    0%
  • 2 Estrela
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  • 1 Estrela
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Prós

  • Sturdy and well-built design
  • Responsive keypresses
  • Easy wiring with minimal GPIO usage
  • Cost-effective, especially as a two-pack
  • Adequate for a variety of DIY projects

Contras

  • High contact resistance reported by some users

Histórico de preços do produto

Informação importante

  • Limitações: para produtos expedidos internacionalmente, tenha em atenção que qualquer garantia do fabricante pode não ser válida; opções de serviço do fabricante podem não estar disponíveis; manuais de produtos, instruções e avisos de segurança podem não estar nas línguas do país de destino; os produtos (e materiais que o acompanham) pode não ter sido concebido em conformidade com as normas, especificações e requisitos de rotulagem do país de destino; e os produtos podem não estar em conformidade com a voltagem e outras normas elétricas do país de destino (requerendo assim o uso de um adaptador ou conversor caso seja apropriado). O destinatário é responsável por garantir que o produto pode ser legalmente importado para o país de destino. Quando encomenda à Ubuy ou aos seus afiliados, o destinatário é o importador de registo e deve estar em conformidade com todas as leis e regulamentos do país de destino.
  • Nem todos os produtos listados na Ubuy estão à venda, uma vez que a Ubuy é um motor de busca global. Os produtos estão sujeitos a leis de exportação/comércio.

STD 429695

Encomende já e receba por volta de Quarta-feira, Julho 01

QTY:

Transação seguraTransação segura

A Ubuy trabalha arduamente para proteger a sua segurança e privacidade. O nosso sistema avançado de segurança de pagamentos garante a confidencialidade ao encriptar as suas informações durante a transmissão, utilizando os protocolos AES (Normas de Encriptação Avançada) e SSL (Camada de Sockets Seguros). Os seus dados de pagamento estão 100% seguros, pois não partilhamos os seus dados de pagamento com vendedores terceiros.

Os nossos principais Parceiros Logísticos
  • fedex
  • dhl
Entrega internacional mais rápida

Recursos e benefícios

  • 12-button matrix keyboard module with numeric keys and function buttons.
  • Easily integrates with any microcontroller for seamless communication.
  • Compact size of 7*5*1cm, lightweight at only 19g.
  • Ideal for applications like password security systems and automatic gate keypads.
  • Includes numbers 0-9, and standard symbols (*#).
  • Package includes 2 x 12 keys keypads for added value.