3*4 membrane matrix keypad

The 3×4 Membrane Matrix Keypad is a compact, lightweight input device consisting of 12 keys arranged in a 3-row by 4-column grid. It is commonly used in embedded systems, microcontroller projects, and other electronics applications where user input is required. The keypad is designed for easy integration with microcontrollers like Arduino and Raspberry Pi, making it suitable for prototyping and DIY projects.

Key Features:

• Layout: 3 rows and 4 columns, providing 12 keys.
• Construction: Membrane-type keys for slim design and durability.
• Interface: Simple matrix wiring for easy connection to microcontrollers.
• Adhesive Backing: Often includes adhesive backing for easy mounting on surfaces.
• Easy Integration: Compatible with a variety of microcontrollers and development boards.

Technical Specifications:

• Number of Keys: 12 (3×4 matrix)
• Keypad Dimensions: Approximately 70mm x 77mm
• Cable Length: Typically around 85mm
• Connector: 7-pin or 8-pin header (depending on model)
• Keypad Material: Flexible membrane with tactile feedback
• Operating Voltage: Typically 3.3V to 5V

Applications:

• Microcontroller Projects: Ideal for adding user input to Arduino, Raspberry Pi, and other microcontroller projects.
• DIY Electronics: Suitable for custom keypads in DIY projects and prototypes.
• Security Systems: Used in keypad-based security systems for code entry.
• User Interfaces: Creates simple interfaces for various electronic devices and applications.
• Educational Projects: Useful in teaching about matrix keypads and interfacing techniques.

Datasheet: For detailed technical information, refer to the 3×4 Membrane Matrix Keypad datasheet.