Patent
A simple patent (paten sederhana) granted by the Directorate General of Intellectual Property of the Republic of Indonesia for the home security device developed during my thesis at Universitas Lampung.
Small Wi-Fi nodes built on the ESP8266 ESP-12E are installed as clients in each room. They detect LPG gas, motion, the state of lights and doors, and control an electronic door lock and the lights in each room. Nodes talk to a server node over the local network using UDP, which keeps the traffic fast and light; the server talks to the cloud (Firebase) over TCP for reliable delivery, so an Android app can monitor and control the house over the internet or, offline, over the local network.
Filed by LPPM Universitas Lampung on 5 December 2018 as application SID201810086, published as ID2019/S/00345 on 15 March 2019, and granted as simple patent IDS000002928 on 28 February 2020.