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The 16 Key Membrane Switch Keypad (4×4 Matrix Keyboard) is a compact and durable input device designed for user interaction in electronic systems, embedded projects, and automation applications. It features 16 push-button keys arranged in a 4×4 matrix configuration, allowing users to enter numbers, commands, and control functions with minimal wiring.
The keypad uses a flexible membrane design with a thin profile, making it lightweight, easy to install, and resistant to dust and moisture. It connects easily with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other microcontroller platforms through simple row and column pins.
With its reliable tactile response and low power consumption, this keypad is ideal for creating password systems, access control devices, digital locks, measurement instruments, and interactive electronic projects.
Key Features:
16-button keypad arranged in a 4×4 matrix layout
Thin and flexible membrane design
Durable and easy-to-clean surface
Low power consumption
Simple row and column interface
Easy connection with microcontrollers
Compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other development boards
Lightweight and space-saving design
Applications:
Password and security systems
Digital door locks
Access control systems
User input interfaces
Industrial control panels
Robotics and automation projects
Smart home applications
Arduino and IoT projects
Educational electronics and embedded systems