Abstract
Smart City is a concept where a city or regional region adopts Internet of Things (IoT) and Internet communication technologies (ICTs) to help manage infrastructure. A home security system to the public security is essential in Smart City to help provide a warning in case of unfortunate disaster in the home. so security officers can quickly take action. This paper aims to create a design one form of Smart City for the security system is IoT home Panic Button which gives warning to the security in case of emergency that requires help. Panic Button is made using a NodeMCU ESP8266 microcontroller that connects to a home Wi-Fi network. Message Queue Telemetry Transport (MQTT) is a communication system used, with the condition if the panic button is being pressed it will send a message to the MQTT broker and continue the message to subscriber. The subscriber is a web that notifies warning alarm and a map of the area covered that will be placed on the public security. In this way, a secure, flexible and reliable system is developed to the solve above mentioned.
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