@thesis{thesis, author={Ardiansyah Nopen}, title ={Rancang Bangun Sistem Kontrol Pembuka Dan Penutup Pintu Berbasis Android}, year={2022}, url={http://eprints.polbeng.ac.id/6298/}, abstract={Along with the rapid development of the times, the need for effectiveness and efficiency is very important in various fields, these things encourage people to be creative and apply in the field of technology. The purpose of this study is to design an Android-based door opening and closing system, where the control system used helps in making a prototype or for making projects. The method used is Android Smartphone based on NodeMcu. The results of this study are that the tool can be operated using NodeMcu as a control center and programmed using Arduino IDE software, then using the Blynk application as a controller to open and close the door by connecting the wifi network first to the NodeMcu. The conclusion is that the system of opening and closing the door of the house using Android can be operated by connecting the NodeMcu with the Blynk application.} }