Security System Using Raspberry Pi is a modular home monitoring setup that combines sensors, camera input, and alerts into a reliable pipeline. Motion detection and door sensors trigger recording, while notifications are delivered through configurable channels. The system prioritizes privacy by storing footage locally and allows flexible schedules for arming and disarming. A lightweight dashboard provides status, history, and quick controls. The build emphasizes stability, clear logs, and recovery on reboot so it behaves like a real product. It is designed to be extendable for additional sensors and integrations. It favors reliability, quiet operation, and clear status at all times.