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The explosion of Internet of Things (IoT) has put in place the creation of smart and connected systems to the new way of life. The paper introduces design and performance of a low-cost, scalable Smart Home Automation System (SHAS) with the help of the IoT framework. The offered system will offer users a single and remote control of house appliances, enhance the energy efficiency, ensure the security and availability. The main element of the system was an ESP8266 Wi-Fi module due to its value to money, small size, and in-built wireless communication possibilities. Installing ESP8266 is a microcontroller and a communication gateway that allows the microcontroller to interface with physical appliances via relay modules and connect them to a cloud-based platform. An effective wireless network was installed whereby the ESP8266 constantly monitored the real-time device status and processed the user control instructions in a mobile-based user interface. The hardware layer to cloud server communication was done via the MQTT (Message Queuing Telemetry Transport) protocol which is a lightweight, secure and time shifted data transmission protocol, which is appropriate within the IoT places. The system allows remote control, time mapping and real time monitoring of devices (lights, fans and security parts) with the help of a smartphone application. The outcomes of the experimental result is the high availability of the system, the efficient system remote control, and feedback providing in time. The solution proposed decreases the sleep mode, enhances the lifespan of appliances, and provides a flexible platform that can be easily extended with more sensors, as well as temperature and moisture sensors, to provide more advanced environmental monitoring. The research demonstrates the ESP8266-based system as a viable and a deployed approach to the development of the IoT-enabled smart home automation systems.