4x4 Matrix Keypad Module
Rs. 75.00
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4x4 Matrix Keypad Module
Rs. 75.00
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Description
4x4 Matrix Keypad Module
The 4×4 Matrix Keypad Module is an input device used in electronic and embedded systems to enter numbers, letters, or commands. It consists of 16 push buttons arranged in a 4-row × 4-column matrix, which reduces the number of microcontroller pins required for operation.
Instead of using 16 separate input pins, the keypad uses only 8 pins (4 rows + 4 columns), and the microcontroller detects key presses by scanning rows and columns.
- Keypad Type: 4×4 matrix push button keypad
- Total Keys: 16 keys
- Layout: 4 rows × 4 columns
- Operating Voltage: 3.3 V to 5 V DC
- Interface Pins: 8 pins (R1, R2, R3, R4, C1, C2, C3, C4)
- Switch Type: Membrane or tactile switch