Enhanced Security Access Control System Using Raspberry Pi Pico W

This project involves developing a security access system using a Raspberry Pi Pico W, a 4x3 keypad, an LCD display, and a GSM module to provide robust access control and real-time monitoring. The system authenticates users by comparing input from the keypad to a pre-stored password in the Pico W’s memory. When the correct password is entered, the LCD displays a confirmation message, signaling successful access. Conversely, if an incorrect password is entered, the LCD shows an error message, and the GSM module sends a notification to a designated phone number, alerting the user to a potential security breach. Additionally, the system can be programmed to log access attempts for further review. This setup enhances security by offering immediate feedback to users and remote notifications for unauthorized access attempts, thereby enabling prompt responses to potential security threats. The integration of these components provides a comprehensive solution for managing and monitoring secure access points effectively.