4×4 Matrix Membrane Type Keypad 16 Keys

4×4 Matrix Membrane Type Keypad 16 Keys

This membrane-type keypad uses a flexible polyester film with printed conductive traces. It operates on a matrix scanning principle, which allows 16 keys to be read using only 8 microcontroller pins.
Each key press connects a unique row and column circuit, easily interpreted by platforms like Arduino, Raspberry Pi, PIC, AVR, and STM32.
The keypad has a self-adhesive backing for simple surface mounting and features tactile response buttons for comfortable operation.

The keys are labeled with digits (0–9), letters (A–D), and symbols (*, #), making it ideal for numeric, alphanumeric, and function entry systems.

Click here to view the related products

Features 

• Ultra-thin design & adhesive backing provides easy integration to any project
• Excellent price-performance ratio
• Easy communication with any microcontroller
• 5 pins 2.54mm pitch connector
• 4x 4type 16 keys.
• Sticker can peel off for adhesive mounting.
• Operating Voltage (V): 12 DC

Applications

• Password and security entry systems
• Home automation and access control units
• Calculators and menu navigation systems
• Arduino and Raspberry Pi projects
• Data entry interfaces for embedded systems
• Robotics control panels

Advantages

• Matrix design minimizes pin usage.
• Simple interfacing with popular development boards.
• Long-lasting, sealed construction for protection against dust and wear.
• Clear labeling with numbers and function keys.
• Affordable and reliable input solution for prototyping or production.