Keypad 4×4 Self-Adhesive 16 key

30.00 EGP

This 4×4 Self-Adhesive Keypad features 16 tactile membrane buttons arranged in a compact grid, perfect for user input in DIY electronics, access control systems, and interactive projects. The built-in adhesive backing allows for easy mounting, while the flexible, durable design ensures long-lasting performance.

SKU: MP-22457 Category: Tags: , ,

Description

Key Features:

✔ 16-Button Matrix (4×4 Layout) – Ideal for numeric entry, menu navigation, or custom command input.
✔ Self-Adhesive Backing – Peel-and-stick installation on enclosures, control panels, or prototypes.
✔ Membrane Switch Technology – Quiet, dust-resistant, and spill-proof operation.
✔ 5V Logic Compatible – Works with Arduino, Raspberry Pi, ESP8266, and other microcontrollers.
✔ 8-Pin Connection (Row-Column Scanning) – Simple interfacing with minimal GPIO pins.
✔ 0.3mm Thick, Flexible Design – Fits tight spaces and curved surfaces.
✔ Long Lifespan – Rated for 1+ million presses per button.


Applications:

  • Access Control – PIN pads for door locks or security systems.

  • DIY Calculators & Menus – Input for Arduino/RPi projects.

  • Industrial Control Panels – Low-cost HMI for machinery.

  • Retro Gaming – Custom controller for arcade builds.

  • Smart Home Interfaces – Control lights, alarms, or appliances.


Package Includes:

  • 1 × 4×4 Self-Adhesive Membrane Keypad (16 keys, 8-pin connector)


How It Works:

  1. Connect to Microcontroller – Wire rows/columns to digital pins (e.g., Arduino pins 2–9).

  2. Upload Code – Use a keypad library (e.g., Keypad.h for Arduino) to detect button presses.

  3. Mount with Adhesive – Attach to any clean, flat surface.


Why Choose This Keypad?

✅ No Soldering Needed – Ready-to-use with breadboard-friendly pins.
✅ Low Power Consumption – Works with 3.3V or 5V systems.
✅ Customizable Labels – Write on the surface with a marker or add overlay stickers.

Note: Does not include pull-up resistors (may be required for some MCUs).

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