📝 Overview
The 4×3 Matrix Keypad is a compact input module featuring 12 buttons arranged in 4 rows and 3 columns. It provides a simple way to enter numbers and commands in electronic projects, making it suitable for access control systems, security locks, and embedded applications.
⚙️ Key Features
12 buttons arranged in a 4×3 matrix.
Includes numeric keys from 0 to 9, plus * and #.
Thin, lightweight membrane design.
Requires only 7 connection pins.
Simple interface for microcontroller projects.
Easy to install and integrate into electronic systems.
📦 Technical Specifications
Parameter | Value |
|---|
Product Type | Matrix Membrane Keypad |
Layout | 4 Rows × 3 Columns |
Number of Keys | 12 |
Keys | 0–9, *, # |
Interface | 7 Pins |
Operating Voltage | Typically 3.3V–5V logic compatible |
Connection Type | Flexible ribbon cable |
📦 Package Includes
- 1 × Keypad 4×3 – 12 Key Membrane
