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4x4 Matrix Membrane Keypad 16 Key Module Array Switch | DIYmalls 4x4 Matrix Membrane Keypad 16 Key Keyboard Module Array Switch for Arduino ESP32 Development Board
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4x4 Matrix Membrane Keypad 16 Key Module Array Switch | DIYmalls 4x4 Matrix Membrane Keypad 16 Key Keyboard Module Array Switch for Arduino ESP32 Development Board
DIYmalls 4x4 Matrix Membrane Keypad is widely used in various projects
4x4 Matrix Membrane Keypad 16 Key Module Array Switch | DIYmalls 4x4 Matrix Membrane Keypad 16 Key Keyboard Module Array Switch for Arduino ESP32 Development Board
Item #: 38874555

4x4 Matrix Membrane Keypad 16 Key Module Array Switch | DIYmalls 4x4 Matrix Membrane Keypad 16 Key Keyboard Module Array Switch for Arduino ESP32

78% of respondents would recommend this to a friend

Item #: 38874555

XAF 9198

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DIYmalls 4x4 Matrix Membrane Keypad is widely used in various projects
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What Stands Out

Versatile Compatibility
Designed for seamless integration with Arduino and ESP32, this keypad ensures flexibility in your projects, catering to both hobbyists and professionals looking for reliable input solutions.
Compact Design
The 4x4 matrix layout offers a space-saving solution for user interfaces, allowing for efficient use of space in devices while delivering 16 programmable keys for enhanced functionality.
User-Friendly Interface
Featuring an easy-to-use interface, this module simplifies the process of adding interactive capabilities to your projects, making it ideal for beginners and experienced developers alike.

Product Details

Shop 4x4 Matrix Membrane Keypad 16 Key Module Array Switch | DIYmalls 4x4 Matrix Membrane Keypad 16 Key Keyboard Module Array Switch for Arduino ESP32 Development Board online at a best price in Equatorial Guinea. B086ZGKDK9
  • 4x4 keypad is commonly used in security systems, robots, electronic voting machines, interrupt systems, and musical keypads.
  • It can be soldered with a regular 2.54mm jumper wire male to create a matrix keypad with 16 keys.
  • Outer two pins on the left and right are not needed for wiring; it's the inner 8 pins that matter.
  • For soldering on a header, it is recommended to use flux, insert the header pins, and then solder.
  • The keypad is a combination of row and column circuits, with a total of 8 pins for a 4x4 keypad.
  • It can be used for applications such as automatic gate keypad lock, access systems, and keypad-controlled servo projects.
Compatible Deviceskeyboard
Connectivity Technologywired
Additional FeaturesCustomizable Matrix Keypad
Power SourceWired
Switch TypeMembrane
Keyboard LayoutQWERTY
Hand OrientationAmbidextrous
Button Quantity16
Number of Keys16
Number of Sections1
ColorBlack
Style NameClassic
Enclosure MaterialPlastic
BrandDIYmalls
Keyboard DescriptionMulti Functional
Antenna LocationOffice
Built-In Media1 x 16 Keys 4x4 Membrane Matrix Keypad
Unit Count1 Count
ManufacturerDIYmalls
Number of Packs1
UPC747356634311
Number of Items1
Item Weight22.95 g
Recommended Uses For ProductOffice
Special FeatureCustomizable Matrix Keypad
StyleClassic
MaterialPlastic
Included Components1 x 16 Keys 4x4 Membrane Matrix Keypad

Who Should Buy?

Suitable For
  • Arduino Enthusiasts

    Perfect for hobbyists developing Arduino projects that require user input through a compact keypad interface.

  • DIY Electronics Projects

    Ideal for DIYers creating custom electronics or home automation systems needing a simple input method.

  • Embedded Systems Developers

    Useful for developers working on embedded systems requiring an efficient and space-saving input solution.

Not Suitable For
  • Professional Applications

    Not suitable for high-traffic professional environments where durability and reliability are critical components.

Product Description

4x4 Matrix Membrane Keypad 16 Key Module Array Switch | DIYmalls 4x4 Matrix Membrane Keypad 16 Key Keyboard Module Array Switch for Arduino ESP32 Development Board

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a 4x4 Matrix Membrane Keypad?

    Answer: A 4x4 Matrix Membrane Keypad is a type of input device that utilizes a matrix of switches, arranged in rows and columns, allowing users to input data via the 16 keys. It is commonly used in various electronic projects, particularly with microcontrollers like Arduino and ESP32. This keypad offers a compact solution for user input, allowing for easy integration into electronic devices. For example, you might use it to create a custom control panel for a robot or as a numeric input device in a DIY home automation system.
  • Question: How do I connect the 4x4 Matrix Keypad to an Arduino?

    Answer: To connect the 4x4 Matrix Keypad to an Arduino, you typically need to connect the keypad pins to specific digital input pins on the Arduino. This involves wiring the row pins to one set of digital pins and the column pins to another. After wiring, you can use libraries like 'Keypad.h' to program the Arduino to read inputs from the keypad. This makes it easy to implement functionality like password entry or menu navigation in your projects, enhancing the interactivity of your DIY electronics.
  • Question: Can I use the 4x4 Matrix Keypad with ESP32?

    Answer: Yes, the 4x4 Matrix Keypad is compatible with ESP32 and can be used in various projects. To use it, you also connect it similarly to how you would with Arduino, using digital pins for rows and columns. The ESP32 offers more processing power and features like WiFi capabilities, so you can create advanced applications, such as a web-controlled device with user input through the keypad. This versatility makes it a great choice for IoT projects.
  • Question: What libraries do I need for programming the keypad with Arduino or ESP32?

    Answer: For programming the 4x4 Matrix Keypad with Arduino or ESP32, the most commonly used library is 'Keypad.h'. This library simplifies detecting key presses and helps manage the keypad setup effectively. By including this library in your code, you can easily create functions to read inputs and respond accordingly. This opens up opportunities to design intuitive user interfaces for various applications, such as security systems or interactive displays.
  • Question: What types of projects can I create with a 4x4 Matrix Keypad?

    Answer: The 4x4 Matrix Keypad can be used in a wide range of projects, including simple password entry systems, user input interfaces for games, and control panels for robotic applications. It is ideal for projects where user interaction is needed, such as entering codes to unlock systems, navigating through menus on an LCD screen, or controlling lights and motors. This versatility allows hobbyists and developers to unleash their creativity across numerous electronics applications.
  • Question: Is the 4x4 Matrix Keypad easy to use for beginners?

    Answer: Yes, the 4x4 Matrix Keypad is considered beginner-friendly due to its simple wiring and ease of programming. With just a few connections and basic knowledge of programming, beginners can start building interactive projects. There are numerous tutorials and resources available online that guide users from setup to advanced functionality. This makes it a perfect starting point for anyone looking to get into electronics or programming through hands-on experience.
  • Question: What are the advantages of using a membrane keypad over mechanical switches?

    Answer: Membrane keypads, like the 4x4 Matrix Keypad, are typically more compact and lightweight than mechanical switches, providing a sleek look for projects. They also offer a quieter operation and can be sealed against dust and liquids, making them suitable for durable applications. Additionally, the uniform surface of a membrane keypad allows for easier cleaning and integration into custom enclosures. These factors often lead to a more streamlined product design in projects requiring user input.
  • Question: Can this keypad work in conjunction with a display?

    Answer: Absolutely! The 4x4 Matrix Keypad works great in conjunction with LCDs or OLED displays. You can use the keypad for user input while displaying information or menus on the screen, creating a more interactive experience. For example, in a home automation system, users can enter commands using the keypad while the display shows the current status or options. This combination enhances user interaction and functionality in various electronic projects.
  • Question: Do I need special skills to program the 4x4 Matrix Keypad?

    Answer: While having some basic programming knowledge will be helpful, you don't need advanced skills to program the 4x4 Matrix Keypad. Many resources, including example codes and tutorials, are readily available that will guide you step-by-step. If you can follow instructions and understand basic programming concepts, you'll be able to implement this keypad in your projects. This accessibility makes it an ideal choice for beginners looking to learn and experiment with electronics.
  • Question: Where can I buy the 4x4 Matrix Membrane Keypad 16 Key Keyboard Module Array Switch for Arduino ESP32?

    Answer: You can purchase the 4x4 Matrix Membrane Keypad 16 Key Keyboard Module Array Switch for Arduino ESP32 through Ubuy, a reliable online shopping platform. Ubuy offers a wide range of electronic components, including this keypad. By shopping with Ubuy, you can enjoy smooth navigation and various options for delivery within Equatorial Guinea, making it a convenient choice for your electronics needs.

DIYmalls Keypads & Remotes Editorial Review

The DIYmalls 4x4 Matrix Membrane Keypad is a budget-friendly option for Arduino UNO R3 users; however, the product doesn't seem to be reliable. Some users received defective keypads with broken PCB traces and missing solder pads, rendering them unusable. Others reported that the contacts didn't close after key presses. Furthermore, some users found it difficult to figure out the pinout of the keypad, wasting an hour of their time.

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Pros

  • Cheap option
  • Easy to hook up
  • Arrived in good condition (according to one user)

Cons

  • Fragile and unreliable

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XAF 9198

Order now and get it around Monday, September 21

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Features & Benefits

  • 16 key keyboard module array switch for Arduino UNO R34x4 keypad
  • Regular 2.54mm jumper wire male can be used to solder it
  • You don't need the outer two pins for wiring
  • Tips to solder header
  • Suitable for Password security system, Wired remote controlled robot, Electronic voting machine, Generating external interrupt, Musical keypad

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