With the continuous progress of science and technology, challenges often emerge, posing threats to the security of various premises. The issue begins with a security level that falls short of the established safety standards for homes. Numerous challenges jeopardize the security conditions of rooms, including the risk of fires resulting from unknown room temperatures and unregulated electronic devices, as well as potential dangers easily gaining access to the room. The prototype configuration of this room security system is programmed and managed by NodeMCU ESP-8266 to transmit comprehensive sensor data to the dashboard. In case the sensor detects any movement, NodeMCU ESP-8266 promptly responds and forwards the information to the Firebase database. The primary goal of this research is to develop an Android application for the purpose of controlling and monitoring room security. This system aims to create applications capable of detecting temperature, motion, and facilitating user-friendly monitoring. The implementation of this system has yielded outcomes wherein temperature, humidity, and movement are systematically monitored and regulated through the ESP-8266 microcontroller, with the results visible on the created dashboard..

Internet of things Node MCU Android Monitoring DHT-11