🔢 4x3 Matrix Keypad – 12-Button Input Module 🔢
This 4x3 keypad is a flexible and lightweight input device featuring 12 buttons arranged in a 4-row by 3-column matrix. Commonly used in access control systems, password input, counters, and Arduino-based interactive projects. It connects via a 7-pin ribbon cable and requires minimal setup.
- ✅ Specifications:
- Configuration: 4 Rows × 3 Columns
- Number of Keys: 12 (0–9, *, #)
- Connector: 7-pin flat cable
- Operating Voltage: 3.3V – 5V
- Interface Type: Matrix scanning
- Top Material: Flexible, moisture-resistant plastic
- Mounting: Self-adhesive back + ribbon cable connector
🔹 Key Features:
✔ Slim, lightweight design
✔ Compatible with all microcontrollers
✔ No external components needed
✔ Arduino-ready with available libraries
✔ Ideal for security, control panels, and DIY projects
📌 Common Applications:
- Password-protected access systems
- Digital menu navigation
- Data entry interfaces
- Counter and timer input
- Educational and embedded electronics projects
🔹 Approximate Weight: 5g
