RANCANG BANGUN DOORLOCK MENGGUNAKAN NODEMCU ESP8266 APLIKASI BLYNK BERBASIS INTERNET OF THINGS (IOT)

Internet of Things (IoT) is the application of modern technology in the field of electronics. Internet of Things (IoT) is a technology that allows control, communication, and collaboration with various hardware devices via the internet (Wifi).This Internet of Things-Based Blynk application uses the NodeMCU ESP8266 module as a microcontroller. This research can be used as a basis for the development of the next project, for example Smart home. In addition, in the design of this system, a relay is also used as a liaison between the Doorlock and the system.From the results of testing and analysis, the control of electronic equipment on this Doorlock operates according to the instructions given. As long as the system is connected to the internet network (Wifi) stably and continuously, there will be no problems with this IoT (Internet of Things) based Doorlock system.