Description
The 4×4 16-Key Matrix Membrane Switch Keypad is a compact and flexible input keypad designed for use with Arduino boards, microcontrollers, and other electronic control systems. It features 16 buttons arranged in a 4×4 matrix, providing four rows and four columns for easy key scanning.
The keypad has a thin and bendable membrane design with an adhesive backing, making it easy to attach to a flat surface, enclosure, or control panel. Its low-profile construction is especially useful for projects where space is limited.
Each key is connected through a 4×4 matrix, allowing a microcontroller to scan the rows and columns to determine which button is pressed. The keypad comes with an 8-pin connector featuring a standard 2.54mm (0.1-inch) pitch, making it convenient for connection to electronic projects and development boards.
This membrane keypad is suitable for Arduino projects, password and PIN entry systems, access control, home automation, industrial equipment, instrument panels, robotics, and other DIY electronics applications.
Specifications
| Specification | Details |
|---|---|
| Product Name | Membrane Switch |
| Matrix Configuration | 4 × 4 |
| Number of Keys | 16 |
| Output Type | Matrix |
| Operating Voltage | DC 12V |
| Current | 30mA |
| Contact Resistance | ≥100 Ohm |
| Operating Force | 250–350g |
| Contact Bounce | >1s |
| Keypad Dimensions | 77 × 77 × 1mm / 3 × 3 × 0.035in |
| Pad Size | 76 × 69 × 0.8mm / 3 × 2.7 × 0.03in (L × W × T) |
| Cable Length | 72mm / 2.8in |
| Cable + Connector Length | 85mm |
| Connector | 8-Pin |
| Connector Pitch | 2.54mm / 0.1in |
| Material | Plastic |
| Weight | 9g |
| Mounting Type | Panel Mount, Front |
| Design | Ultra-thin, Flexible |
| Backing | Adhesive |
| Package Content | 1 × 4×4 Matrix Membrane Keypad |
Features
- 16 keys arranged in a 4×4 matrix
- Flexible and bendable membrane construction
- Ultra-thin 1mm keypad design
- Adhesive backing for easy mounting
- 8-pin connector with 2.54mm pitch
- Simple matrix interface for microcontrollers
- Suitable for Arduino and DIY electronics projects
- Lightweight and compact design
Applications
- Arduino and microcontroller projects
- PIN and password entry systems
- Access control systems
- Home automation
- Electronic control panels
- Industrial equipment and instruments
- Robotics and embedded systems
- DIY keyboards and user interfaces
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