This project is a prototype of an IoT access control system using a mobile application. For this, an ESP32 microcontroller will be used, which will be responsible for releasing access, a WEB server that will perform the authentication and authorization process, and a mobile application, which will be used to detect the access devices, using BLE Low Energy (BLE) to discover these devices, and which will request authorization for the server.
Link to the paper in Portuguese: Sistema IoT para controle de acesso utilizando aplicativo mobile (IoT system for access control using mobile app)