Keypad 4×4 16 key
🔢 Keypad 4×4 Self-Adhesive – 16 Key
The 4×4 Matrix Keypad is a compact and easy-to-use input device with 16 keys arranged in a 4-row × 4-column grid. The self-adhesive back makes it simple to attach to enclosures or panels for DIY electronics, Arduino, and embedded projects.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Number of Keys | 16 (4 rows × 4 columns) |
| Operating Voltage | 3.3V – 5V |
| Interface | Matrix (8-pin connector) |
| Key Type | Soft membrane switches |
| Cable Length | ~7 cm |
| Dimensions | ~70 × 77 × 1 mm |
| Adhesive Back | Yes |
✅ Features
🔹 16 keys for more input options
🔹 Flexible membrane keypad design
🔹 Self-adhesive backing for easy mounting
🔹 Works with Arduino, ESP32, Raspberry Pi
🔹 Durable and lightweight
🧠 Applications
🔢 Password entry systems
🎮 Menu navigation in electronics projects
🤖 Robotics control panels
📟 DIY calculators and security systems