The Baehwa Women's University attendance certification app handles attendance through three methods.
The first is the professor calling method, the second is the authentication number input method, and the third is
This is a Bluetooth transmission/reception method.

The authentication number input method is that the student enters the authentication number specified by the professor through the app.
In the student app, the authentication number sent by the professor app is processed for attendance and Bluetooth transmission/reception.
Receive and process attendance.

In addition, you can check lecture information, etc. in the student app.