Project 10 Arduino

Password Entry System

This Arduino script implements a password entry system using a keypad and an LCD display. It prompts the user to enter a password, compares it with the preset master password, and activates a signal pin if the passwords match.

Instructions

Libraries Required

• Keypad.zip: This library provides functions for interacting with the keypad.
• liquidcrystal_i2c.zip: This library enables communication with the LCD display via I2C.

Ensure that these libraries are installed in the Documents\Arduino\libraries\ directory.

Keypad Configuration

Depending on your keypad type, use either the keypad_3x4.ino or keypad_4x4.ino project files.

Installation

1. Download the necessary libraries and unzip them.
2. Move the extracted library folders (Keypad and LiquidCrystal_I2C) to your Arduino libraries folder (typically located at Documents\Arduino\libraries\).
3. Connect your Arduino board and upload the appropriate script (keypad_3x4.ino or keypad_4x4.ino) to the board using the Arduino IDE.
4. Test the system by entering the preset master password. If entered correctly, the signal pin will activate.

License

This project is licensed under the MIT License. See the LICENSE file for details.