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MAJESTRONICZ
1x4 Matrix Membrane Keypad 4 Key Button Switch | 4x1 Numeric Keypad for Arduino, ESP32, Raspberry Pi & DIY Electronics
1x4 Matrix Membrane Keypad 4 Key Button Switch | 4x1 Numeric Keypad for Arduino, ESP32, Raspberry Pi & DIY Electronics
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The 1x4 Matrix Keypad is a compact 4-button membrane keypad designed for user input applications in electronic projects, embedded systems, and microcontroller-based applications. It features four tactile keys arranged in a single row matrix configuration, providing a simple and reliable interface for entering commands, numbers, or control signals.
Specifications
| Parameter | Specification |
|---|---|
| Product Type | 1x4 Matrix Membrane Keypad |
| Key Configuration | 4 Keys (1 Row × 4 Columns) |
| Number of Buttons | 4 Buttons |
| Interface Type | Matrix Keypad |
| Connector Type | Flexible Tail / Pin Header (Based on Model) |
| Operating Voltage | 3.3V – 5V DC |
| Contact Resistance | Low Resistance |
| Material | Flexible Membrane |
| Mounting | Adhesive Back / Panel Mount |
| Response Life | High Durability |
| Compatible Boards | Arduino, ESP32, ESP8266, Raspberry Pi, STM32 |
| Application | User Input, Control Panels, Embedded Systems |
Key Features
- Compact 1x4 matrix keypad design
- Four independent push buttons in a single module
- Requires fewer GPIO pins using matrix scanning
- Thin and lightweight membrane construction
- Easy integration with microcontrollers
- Low power consumption
- Reliable button operation
- Suitable for embedded and automation projects
- Compatible with Arduino, ESP32, Raspberry Pi, and other controllers
- Ideal for DIY electronics and robotics applications
Applications
- Arduino keypad projects
- Password lock systems
- Security access control
- Digital door lock projects
- Robotics control panels
- Industrial control systems
- IoT projects
- Menu selection interfaces
- Embedded systems
- Educational electronics projects
- DIY automation projects
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