This Code Booklet contains all the programming components of the final year project, including functions, modules, servers, databases, and user interface elements. It provides a detailed record of the project’s hardware and software setup, module explanations, and complete source code with comments. For System Development students, it also includes a user manual. The booklet serves as a comprehensive reference for understanding, replicating, and maintaining the ABC Attendance System Using Sensors project, highlighting how the system addresses staff movement and attendance tracking challenges.