4×4 Matrix Keypad
4,800 Rwf
4×4 Matrix Keypad is an input device used for user interaction in embedded systems, allowing numerical and character input through a grid of 16 buttons. It is commonly used in security systems, calculators, and menu navigation for microcontroller-based projects.
Specifications
Operating Voltage: 3.3V to 5V
Number of Keys: 16 (4 rows × 4 columns)
Interface: Digital (Row-Column Matrix)
Communication: Requires GPIO pins for row and column scanning
Key Type: Tactile switch membrane
Dimensions: Varies based on manufacturer
Durability: Typically rated for over 1 million key presses
Compatibility: Works with microcontrollers like Arduino, Raspberry Pi, and ESP32
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