IOT Based Smart Single Wall Outlet

Saw, Jian Jing (2020) IOT Based Smart Single Wall Outlet. Final Year Project, UTAR.

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Abstract

Wall outlets are standard household devices in our homes to power up electrical appliances. Occasionally, energy is wasted if the outlets are left switched on unintentionally. It is difficult to be detected without the aid of a measuring or monitoring device. These issues arise due to the absence of convenient wall outlets controlling and monitoring. Although there were smart wall outlets available in the market, most of them are an external plug and play device that can be controlled and monitored remotely within the same connection only. On top of that, inappropriate usage of these outlets could also lead to major catastrophic events such as electrocution or fire, particularly among toddlers and children. This project presents an Internet of Things (IoT) based smart wall outlet system with a locking mechanism that remotely monitors the usage of electrical appliances that plug into the socket. The socket uses the Radio Frequency Identification (RFID) reader as the input signal to gain access. The proposed system allows users to control and monitor energy consumption in realtime through a custom mobile application. The electricity tariff will be calculated and shown to the user. The system consists of a home control unit and two smart wall outlets. The home control unit will be set up using a Raspberry Pi loaded with Hass OS that integrates with Home Assistant. On the other hand, the smart wall outlets will be controlled by the MHET ESP32 Mini Kit with custom firmware loaded from ESPHome. The physical structure of the conventional wall outlet is redesigned by including the locking cover with a solenoid magnet. A few experiments were conducted on the proposed wall outlet system, and encouraging results were achieved.

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