12-Button 4x3 Matrix Membrane Keypad for DIY Electronics
12-Button 4x3 Matrix Membrane Keypad for DIY Electronics
12-Button 4x3 Matrix Membrane Keypad for DIY Electronics Projects
Take control of your next electronics build with this compact 4x3 matrix membrane keypad. Featuring 12 capacitive-style buttons arranged in a grid layout, this keypad is the perfect plug-and-play input solution for microcontroller projects, access control systems, alarm devices, and custom gadget builds — no wire splicing required.
Made in Mainland China.
Key Features
- 12 Buttons, 4x3 Matrix Layout — Compact grid design makes it ideal for numeric or custom input applications
- Capacitive Operation Style — Responsive and reliable button registration with every press
- Durable ABS Construction — Crafted from sturdy plastic and metal materials for long-lasting, wear-resistant performance
- Plug-and-Play Simplicity — Direct replacement design; no wire splicing or complex installation needed
- Mini Keyboard Form Factor — Small, space-saving size suited for embedded projects and compact devices
- Wired Connection — Stable, reliable wired interface for consistent signal transmission
- English Language Layout — Standard labeling for universal use
- No Battery Required — Powered directly through your project's circuit
Specifications
| Button Count | 12 (4x3 Matrix) |
| Operation Style | Capacitive |
| Material | ABS Plastic & Metal |
| Keyboard Standard | Mini Keyboard |
| Connection Type | Wired |
| Battery | Not Required |
| Origin | Mainland China |
Package Includes
- 1 × 12-Button 4x3 Matrix Membrane Keypad
Great for Use In
- Arduino, Raspberry Pi & other microcontroller projects
- Access control & security device panels
- Alarm system interfaces
- Custom electronic device controls
- DIY robotics & automation builds
Note: Please allow ±1mm tolerance due to manual measurement. Actual color may vary slightly from product images due to monitor differences.
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Frequently Asked Questions
Q: What type of projects is this 12-button matrix keypad compatible with?
A: This 4x3 matrix membrane keypad is compatible with a wide range of DIY electronics projects including Arduino, Raspberry Pi, and other microcontroller platforms. It is also suitable for access control panels, alarm systems, and custom electronic device builds that require numeric or functional input.
Q: Does this keypad require a battery or external power source?
A: No battery is required. This keypad draws power directly from your project's circuit via its wired connection, making it easy to integrate without any additional power components.
Q: Is installation difficult? Do I need to splice any wires?
A: Not at all. This keypad is designed as a direct replacement with a simple plug-and-play interface — no wire splicing is necessary. Just connect it to your circuit and you're ready to go.
Q: What material is the keypad made from?
A: The keypad is constructed from ABS plastic and metal components, providing a durable, wear-resistant build suited for repeated use in both prototyping and finished device applications.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.