The 4×4 Matrix Keypad Module is a compact and durable input device ideal for Arduino, Raspberry Pi, and other microcontroller applications. It features 16 tactile push buttons (arranged in 4 rows × 4 columns) that allow efficient digital input while using only 8 I/O pins.
✅ Specifications:
Type: 4×4 Matrix Keypad Module
Total Keys: 16 (0–9, A–D, *, #)
Interface: Matrix (4 Rows × 4 Columns)
Connector: 8-pin header (2.54mm pitch)
Operating Voltage: 3.3V–5V
Key Type: Tactile push buttons
Dimensions: Approx. 70mm × 75mm
Material: Hard plastic with PCB connector
⚙️ Features:
Sturdy and durable keypad for long-term use
Easy to interface with Arduino and microcontrollers
Clear, responsive tactile buttons
Suitable for direct panel or enclosure mounting
Ideal for password entry, menu navigation, or control systems
📦 Applications:
✔️ Arduino & Raspberry Pi projects
✔️ Security and access control systems
✔️ Electronic locks
✔️ Industrial or home automation panels
✔️ Custom user input interfaces



















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