🔢 4x4 Matrix Keypad – 16-Button Input Module 🔢
This 4x4 matrix keypad module offers 16 buttons (0-9, A-D, *, #) for user input in interactive electronic projects. It connects via 8-pin header and is ideal for use with microcontrollers like Arduino, ESP, and Raspberry Pi. Perfect for password entry systems, menu navigation, and general keypad interfacing.
- ✅ Specifications:
- Configuration: 4 Rows × 4 Columns
- Number of Keys: 16 (0-9, A-D, *, #)
- Connector: 8-pin ribbon cable
- Operating Voltage: 3.3V – 5V
- Interface Type: Matrix scanning
- Top Material: Flexible plastic with waterproof coating
- Dimensions: ~7 × 7 cm
- Mounting: Self-adhesive back with flat cable
🔹 Key Features:
✔ Lightweight and slim design
✔ Interactive user input support
✔ Compatible with Arduino and microcontrollers
✔ Easy to interface with standard libraries
✔ Waterproof and adhesive-backed surface
📌 Common Applications:
- Password entry systems
- Menu navigation in embedded projects
- Electronic lock control
- Counter or timer input
- DIY electronics and prototyping
🔹 Approximate Weight: 7g
