4×4 Matrix Keyboard Keypad Module With Plastic Keys.

The 4×4 Matrix Keyboard Keypad Module is a durable 16-button input module designed for Arduino, PIC, AVR, STM32, Raspberry Pi, and other microcontroller-based projects. Unlike thin membrane keypads, this version features solid plastic push buttons mounted on a PCB, giving a more tactile and reliable feel for repeated use. The keypad contains 16 keys arranged in a 4-row by 4-column matrix. The standard layout includes: 1, 2, 3, A 4, 5, 6, B 7, 8, 9, C *, 0, #, D