Description

16-Key Membrane Keypad (4×4 Matrix Keyboard Module for Arduino, DIY Security & Control Panels): Sleek Input for Smart Interfaces! ⌨️🧠
This 16-key membrane keypad offers a slim, responsive, and easy-to-integrate input interface for your electronics projects. Designed in a space-saving 4×4 matrix, it delivers tactile button feedback with minimal wiring. Perfect for password-protected systems, custom menus, and interactive devices, this keypad combines durability with clean design.

🔑 Key Features:

✅ 4×4 Matrix Layout: Scan 16 keys using just 8 microcontroller pins.
✅ Tactile Feedback: Soft-touch buttons offer quiet, responsive interaction.
✅ Spill-Resistant Membrane: Sealed surface for long-lasting performance.
✅ Easy Mounting: Comes with strong adhesive backing—just peel and stick!
✅ Versatile Use: Ideal for Arduino, Raspberry Pi, and embedded projects.

📐 Technical Specifications:

• Layout: 4 Rows × 4 Columns (16 Keys)

• Operating Voltage: 1–15V DC

• Current Consumption: <10mA

• Key Lifecycle: >1 million presses

• Interface: 8-pin header (row/column format)

• Dimensions: 80mm (L) × 80mm (W) × 2mm (H)

• Active Key Area: 70mm × 70mm

• Cable Length: ~85mm flexible ribbon with female header

💡 Applications:

🔒 Security Keypads: Input PINs for locks, safes, or alarm systems
🧮 DIY Calculators: Great for numerical and operator input
🎛️ Menu Navigation: Control custom UIs on LCD or OLED displays
📟 Embedded Control Panels: Input commands for machines or automation setups

🛠️ How to Use:

• Connect via 8-pin Header:

  • Use microcontroller GPIO pins or interface with a keypad library

  • Scan rows/columns to detect button presses

• Mount in Seconds:

  • Peel off adhesive backing and place onto any flat surface

• Pair with Displays:

  • Combine with an LCD or OLED to create a full-featured user interface

🎯 Why Choose This Keypad?

🧩 Simple Yet Smart: Matrix design reduces pin usage and wiring complexity
🔒 Reliable Input: Sealed construction for durability and long-term use
💻 Ready for Microcontrollers: Works out-of-the-box with common keypad libraries
💰 Budget-Friendly Control: Affordable, robust input solution for makers

📦 Package Includes:

• 1x 16-Key Membrane Keypad (4×4 Matrix)

Add seamless input to your projects today! 🚀
Whether you’re building a smart lock, a digital menu, or a custom controller, this keypad delivers comfort, clarity, and clean integration.