Online Examination Attendance System Using Internet of Things is an electronic device embedded into electronic student card designed to capture attendance records for students during examinations at the Kisii National Polytechnic (KNP). It facilitates the management of attendance for each student in a particular examination room and helps in generating reports to ensure accurate attendance tracking. Instead of manually signing an attendance sheet, attendance records are captured electronically into a database, making them easier to manage. The study will conduct in the examination department at KNP and resulted in the development of an Online Examination Attendance System Using Internet of Things (OEASUIOT) that assists management in automatically handling students' attendance records during exams. The primary objective of the study will be to develop an Automated Examination Attendance Records Management System for KNP. This system enables the management to automatically capture and compute students' attendance records during examinations. The specific objectives included investigating the current manual system, gathering requirements for the new system, and designing, implementing, and testing the developed electronic system. Data was gathered using interviews, observation, and questionnaires. The collected data was sorted and analyzed, revealing that the current manual system is inefficient, time-consuming, and insecure, making it unsuitable for managing attendance records. With the newly developed system (OEASUIOT), management can electronically capture, store, compute, and generate attendance reports automatically. The system also allows for data backup on movable devices, ensuring data security and accessibility and reduce the time consumed by the traditional system of recording daily attendance in examination room. So, everything here in turn gets automated.