4×4 Matrix Keypad Module for Pro

4×4 Matrix Keypad Module for Pro – a compact, 16‑button input board that plugs directly into any Arduino, Raspberry Pi, or compatible microcontroller. Each key is a reliable, low‑profile tactile switch arranged in a 4 × 4 matrix, providing 16 distinct inputs with only 8 I/O pins. The module includes built‑in pull‑up resistors, a sturdy PCB, and a clear silk‑screen layout, making wiring and programming a breeze for classroom projects and rapid prototyping.

Students who work with this keypad will master the fundamentals of digital input, debounce handling, and matrix scanning algorithms while exploring real‑world applications such as password pads, musical instruments, game controllers, and interactive kiosks. Key features include: 16 gold‑plated buttons (3 mm travel), 5 V‑tolerant I/O, 2.54 mm pitch header for easy breadboard use, and an on‑board LED indicator for visual feedback. By integrating hardware design, coding (C/C++, Python, Block‑based), and problem‑solving, the module is a perfect STEAM tool that bridges engineering concepts with creative projects, empowering learners to turn ideas into functional, interactive prototypes.