4×4 Matrix Keypad Membrane Switch for Arduino, ARM and other MCU

This DC 12V 4×4 Matrix Keypad Membrane Switch is a high-quality soft touch feeling button keypad with 100 million life-stroke lifespans and good resistance to environmental conditions. This DC 12V 4×4 Key Matrix Membrane Switch Keypad is a high-quality product at a very low cost for your application needs.

This 16-button keypad provides a useful human interface component for microcontroller projects. Convenient adhesive backing provides a simple way to mount the keypad in a variety of applications. The Keypad 4×4 features a total of 16 buttons in Matrix form. This is a membrane keypad with no moving parts. A female 8-pin berg connector is required for interfacing it with your microcontroller circuits.

The 4×4 Matrix Keypad Membrane Switch is a versatile input device designed for use with microcontroller units (MCUs) such as Arduino, ARM, and others. This keypad offers a convenient and efficient way to input data or commands into electronic projects, making it popular among hobbyists, tinkerers, and professionals alike.

At first glance, the 4×4 Matrix Keypad appears as a compact and unassuming rectangular pad, typically measuring around 77mm x 69mm. Its minimalist design belies its functionality, as beneath its surface lies a matrix of sixteen individual buttons arranged in a 4×4 grid formation. Each button represents a unique input, allowing users to interface with their MCU-based projects through simple key presses.

One of the key advantages of the 4×4 Matrix Keypad is its ease of integration with various MCU platforms. The keypad typically utilizes a standard interface protocol such as digital I/O pins or serial communication, enabling seamless compatibility with popular development boards like the Arduino Uno, Raspberry Pi, and STM32. This plug-and-play functionality simplifies the process of incorporating the keypad into projects, reducing development time and effort.

The membrane switch construction of the keypad ensures reliable performance and durability. Each key is comprised of a flexible membrane layer, typically made of materials such as polyester or polycarbonate, which actuates upon contact with a conductive pad beneath it. This design not only provides tactile feedback to the user but also helps to protect the underlying circuitry from dust, debris, and moisture, enhancing the longevity of the keypad.

Moreover, the 4×4 Matrix Keypad offers versatility in terms of application. Its compact size and lightweight design make it suitable for integration into a wide range of electronic devices, including security systems, access control panels, digital lock interfaces, and interactive displays. Additionally, its affordability makes it an attractive option for projects with budget constraints, without sacrificing performance or functionality.

From a user interface perspective, the keypad’s 4×4 grid layout allows for the input of alphanumeric characters, numeric values, symbols, and various command functions. This versatility makes it adaptable to different project requirements, whether for data entry, menu navigation, or user authentication purposes.

In conclusion, the 4×4 Matrix Keypad Membrane Switch is a versatile and reliable input device that facilitates user interaction with MCU-based projects. Its ease of integration, durability, affordability, and versatility make it a popular choice among electronics enthusiasts and professionals seeking a convenient and efficient input solution for their projects.

Note: The product image may vary in terms of color

Features :

1. Ultra-thin design & adhesive backing provides easy integration to any project
2. Excellent price-performance ratio
3. Easy communication with any microcontroller
4. 5 pins 2.54mm pitch connector, 4x 4type 16 keys.
5. The sticker can peel off for adhesive mounting.
6. Used widely in industrial and home electronic equipment, instruments, etc.
7. This allows a microcontroller to ‘scan’ the 8 output pins to see which of the 16 buttons is being pressed.

Package Includes :

1 x DC 12V 4×4 16 Key Matrix Membrane Switch Keypad