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SKU: R3-D-14

4X4 Membrame Keypad

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₹50.00 (Excluded Tax)
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Overview

The 4×4 Membrane Keypad is a compact, flexible, and user-friendly input device that allows students and hobbyists to interact with Arduino, Raspberry Pi, ESP32, or STM32 projects. With 16 keys arranged in a 4×4 matrix, it’s ideal for password input, numeric entry, menu navigation, and custom control interfaces in hands-on STEM labs.

 

Key Features

  • Layout: 4×4 matrix (16 keys)

  • Flexible membrane design: Thin, lightweight, and durable

  • Easy to interface: Connects directly to microcontrollers via 8 digital pins

  • Voltage Compatibility: 3.3–5 V logic (safe for Arduino/ESP32/STM32)

  • Applications: Robotics, keypads for security projects, educational electronics kits, STEM experiments

 

Technical Specifications

Feature Specification
Rows 4
Columns 4
Number of Keys 16
Operating Voltage 3.3–5 V DC
Logic Level TTL compatible
Pin Interface 8 pins (4 rows + 4 columns)
Dimensions ~80 × 80 mm (typical)
Material Flexible membrane with printed conductive traces
Life Cycle >100,000 key presses

 

Applications

  • Numeric input and password entry for Arduino projects

  • User interface for robotics, IoT, and home automation projects

  • Hands-on STEM lab exercises for digital input and matrix scanning

  • DIY calculators, menu navigation, and control panels

  • Educational kits for microcontroller input learning

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