Membrane Keypad, Shape : All Shapes (Customised) for Industrial Use

4x4 Matrix Membrane Keypad High Performance, Ultra thin Interface Solutions

Our 16-button 4x4 matrix membrane keypad is a versatile and durable human interface component designed for seamless integration into microcontroller-based projects. Featuring an ultra-thin design (0.5 MM to 1.5 MM) and 3M adhesive backing (IPC62 standard), it offers a reliable, cost-effective, and space-saving solution for various industrial and commercial applications.

Advantages

• Flat & Flexible - Ideal for compact designs requiring a sleek, low-profile interface.
• Sealed & Durable - Resistant to dust, moisture, and contaminants, perfect for harsh environments.
• Cost-Effective - A high-quality yet affordable alternative to traditional keypads.
• Customizable - Options for graphic overlays, key sizes, and shapes to match unique requirements.

• Consumer Electronics – Remote controls, calculators, and home appliances.
• Medical Devices - Blood pressure monitors, infusion pumps, and diagnostic equipment.
• Industrial Control Panels - Machinery, automation systems, and equipment interfaces.
• Point-of Sale (POS) System - Secure keypads for payment terminals and self-service kiosks.

Matrix Keypad - Functionality & Connection Overview

A 4x4 matrix keypad operates using a structured combination of four rows and four columns, providing efficient button state detection for microcontrollers and host devices. Each key contains an embedded push-button switch, where one terminal is connected to a row and the other to a column.

How It Works ?

• The microcontroller scans the keypad by sequentially pulling each of the four column pins (1-4) HIGH or LOW while monitoring the state of the four row pins (5-8).
• When a key is pressed, it completes a circuit between a specific row and column, enabling the microcontroller to identify the exact key pressed. This method ensures an efficient, low-power, and interference-free way to register key inputs.