4×3 Keypad Module

A 4×3 Keypad Module is a 12-button matrix keypad used in embedded systems, microcontroller projects, and access control systems. It is widely used in Arduino, Raspberry Pi, and other microcontroller-based applications.

Specifications:

• Number of Keys: 12
• Matrix Type: 4×3 (4 Rows, 3 Columns)
• Operating Voltage: 3.3V – 5V (compatible with Arduino, Raspberry Pi, ESP32, etc.)
• Interface: Digital I/O (requires software scanning)
• Contact Resistance: ≤ 200Ω
• Button Lifespan: ~1 million presses
• Compact Size: Fits most microcontroller projects
• Connector Type: Pin header (straight or right-angle)