Implementation of QR Code and Imei on Android and Web-Based Student Presence Systems

Presence system is one of the important components in the lecture process and student attendance recap is one of the elements in various aspects of lecture assessment. Presence has been carried out by signing students. The use of telecommunications technology which is now growing rapidly is the smart phone where one of the operating systems used in smart phones is the Android operating system, Android provides an open platform for users to create their own applications that have been used if various mobile devices. In addition to the development of communication technology, there is also a Quick Response Code or QR Code that has the meaning of a code that can convey information quickly with a quick response. QR Code can not only store horizontal information such as barcodes but can also store information vertically. This study aims to build a presence system using an Android operating system. Presence system with QR code. The QR code used is the Generate QR Code to display the QR code and read by students with the QR Code Reader. The use of International Mobile Equipment Identity (IMEI) is also used to validate mobile phone owners so that mobile phones cannot be used by other students. The presence process can be done by reading the QR Code from the lecturer's cellphone, reading the QR Code can also be via the web which will be displayed by the lecturer through the Projector, students can only read from their seats. The presence system will provide student attendance recapitulation at every meeting and all meetings so that it can facilitate the attendance recapitulation process by the lecturer.