DIYables Keypad 4x4 for Arduino, ESP32, ESP8266, Raspberry Pi, 2 pieces
Click to zoomQuick Overview
This 4x4 membrane matrix keypad provides 16 keys in a compact layout, perfect for user input in DIY projects. The 2-piece set includes removable adhesive backing for easy mounting on flat surfaces. Ideal for security systems, door locks, calculators, and control panels.
Key Features
- 4x4 Matrix Layout: 16 keys (0-9, A-D, *, #) in compact design
- Membrane Technology: Durable, flexible keypad construction
- Adhesive Backing: Removable adhesive paper for easy mounting
- 2-Piece Set: Includes 2 keypads for multiple projects
- Matrix Scanning: Efficient 8-pin interface (4 rows + 4 columns)
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | Membrane Matrix Keypad |
| Layout | 4x4 (16 keys) |
| Key Labels | 0-9, A-D, *, # |
| Interface | 8-pin (4 rows + 4 columns) |
| Operating Voltage | 3.3V - 5V |
| Mounting | Adhesive backing included |
| Package Quantity | 2 pieces |
Tutorials
COMPATIBLE HARDWARE
- Arduino boards (UNO, Mega, Nano, etc.)
- ESP32 development boards
- ESP8266 (NodeMCU, Wemos D1, etc.)
- Raspberry Pi (all models)
- Raspberry Pi Pico
- Any microcontroller with 8 or more digital I/O pins
