4x4 Membrane Keypad
10 in stock16-key matrix membrane keypad with adhesive backing, perfect for Arduino projects, control panels, and custom input devices. Easy to connect and integrate.
Product Description
The 4x4 Membrane Keypad is a compact, flexible input device that provides 16 keys arranged in a 4x4 matrix configuration. Made of thin, flexible membrane material with an adhesive backing, this keypad is perfect for embedded systems, Arduino projects, control panels, and custom input devices. Tec...
Product Specifications
| - Key Configuration | 4x4 matrix (16 keys total) |
| - Material | Thin, flexible membrane |
| - Backing | Adhesive backing (peel-off paper) |
| - Interface | Matrix scanning (8 pins: 4 rows + 4 columns) |
| - Operating Voltage | 3.3V - 5V (compatible with most microcontrollers) |
| - Key Layout | Standard 4x4 grid |
| - Dimensions | Compact size |
| - Mounting | Adhesive backing for easy installation |
| - Durability | Resistant to repeated presses |
| - Environmental | Resists environmental damage |
| - Row 1 | 1, 2, 3, A |
| - Row 2 | 4, 5, 6, B |
| - Row 3 | 7, 8, 9, C |
| - Row 4 | *, 0, #, D |
| - Row Pins | R1, R2, R3, R4 (4 pins) |
| - Column Pins | C1, C2, C3, C4 (4 pins) |
| - Total | 8 pins (4 rows + 4 columns) |
| - Arduino | Keypad library (widely available) |
| - ESP32 | Keypad library compatible |
| - Raspberry Pi | Python libraries available |
| Note | Uses matrix scanning technique. Requires Keypad library for Arduino. Connect 8 pins (4 rows + 4 columns) to digital pins. Adhesive backing allows easy mounting on any surface. |
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