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Circuitrocks Project Name: "Simple Keypad Input with Arduino" Used: Simple keypad with an Arduino is a great way to learn about digital inputs and user interfaces. The 4×4 keypad has 16 buttons arranged in a grid, which you can use for entering numbers, letters, or commands. This is useful for making projects like password systems, menu navigation, or simple data entry. By connecting the keypad to an Arduino, you can easily read and process the button presses. Visit Us Tutorial: [https://learn.c