4 x 3 Telephone Keypad Black

Elevate your project’s user interface with this classic 4×3 Matrix Keypad. Modeled after a standard telephone layout, this keypad features 12 tactile buttons (0–9, *, and #) in a high-contrast black and white design. It is the industry-standard choice for developers needing a reliable, familiar input method for security systems, menu navigation, and data entry.

Specifications:

• Standard Telephone Layout: Familiar 12-button grid for intuitive user interaction.

• Matrix Circuitry: Uses a 7-pin output (3 columns, 4 rows) to minimize the number of I/O pins required on your microcontroller.

• Tactile Response: High-quality membrane or dome switches provide clear physical feedback with every press.

• Durable Build: Impact-resistant plastic keys with wear-resistant printed characters for long-term use.

Technical Applications:

• Access Control: Perfect for digital PIN entry and electronic door locks.

• Control Panels: Navigate LCD menus or adjust settings on industrial equipment.

• Prototyping: Seamlessly integrates with Arduino, Raspberry Pi, and ESP32 using standard keypad libraries.