<![CDATA[- This research aims to: (1) Designing a home fire detection and extinguishing device using an arduino uno-based water pump. (2) Knowing how sensors and microcontrollers work in the prototype of detecting and extinguishing house fires using an arduino uno-based water pump. The method used in this research is prototyping. The stages in the prototype method are collecting requirements, building prototypes, evaluating prototypes, coding systems, testing systems, evaluating systems, using systems. The results of the research show that: (1) The prototype of a home fire detection and extinguishing system using an arduino uno based water pump is designed using a system block diagram consisting of inputs, processes, output where inputs are flame sensors and MQ-2 sensors, processes, are arduino, relay and sim 800l gsm modules and outputs are buzzers, water pumps and call to cellphones. (2) This prototype was made using two sensors, namely the flame sensor and the MQ-2 sensor as inputs that can work properly where the flame sensor functions as a fire detector and the MQ-2 sensor as a smoke detector in every room. Each sensor produces an output in the form of a digital value or number, namely 1 and 0. This value is used as a condition on the Arduino Uno to produce output in the form of a buzzer, water pump and call.]]>
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