The 4×4 Matrix Membrane Keypad gives your project 16 keys (0–9, A–D, * and #) using only 8 pins. It’s the standard input for password locks, calculators and menu-driven projects.
Key Features
- 16 keys in a 4×4 matrix
- Thin, self-adhesive membrane
- Only 8 pins via matrix scanning
- Works with the Keypad library
- Easy to mount anywhere
Specifications
| Keys | 16 (4×4) |
| Pins | 8 |
| Type | membrane |
| Library | Keypad.h |
Popular Project Ideas
- Password / PIN door lock
- DIY calculator
- Menu & number input
- Security / access projects
Order online anywhere in Pakistan or visit Arduino Corner at Shaheen Market, DAV College Road, Rawalpindi. We ship to Islamabad, Lahore, Karachi, Peshawar and every city with cash on delivery and fast dispatch — the trusted choice for students, hobbyists and FYP builders.
