
The 4x4 Membrane Keypad is a compact and lightweight input device commonly used in embedded systems, Arduino projects, security systems, and industrial control applications. It features 16 keys arranged in a 4-row by 4-column matrix layout, making it suitable for numeric input, password entry, menu navigation, and user interaction systems.
Designed with flexible membrane technology, the keypad provides reliable key operation while maintaining a slim and durable structure. Its matrix configuration reduces the number of microcontroller pins required, making it an efficient input solution for electronics and DIY projects.