Ts.NOOR AQMA BINTI HJ. MOHD YAZID TVETMARA LEDANG
Electricity wastage often occurs in enclosed indoor spaces when electrical appliances are left switched on without occupancy. This issue is further supported by monthly electricity bill records from TVETMARA Ledang, which show an increasing trend in electricity consumption, particularly in enclosed areas. In addition, reports from the Department of Statistics Malaysia (DOSM) and the Malaysia Energy Statistics Handbook also highlight the growing demand and usage of electrical energy. This situation leads to inefficient energy usage and increased electricity costs. Therefore, this project aims to develop an automatic electrical control system based on sensor inputs to improve energy efficiency. The proposed system integrates several sensors including infrared (IR), ultrasonic, and light dependent resistor (LDR) sensors to detect human occupancy and environmental conditions.
An ESP32 microcontroller is used to process the sensor data and automatically control electrical appliances. The system operates by switching electrical appliances on or off based on real-time sensor readings through the use of a relay module. In addition, users are able to receive notifications indicating that electrical appliances in the room are currently in operation. The developed prototype successfully demonstrates the automatic control of electrical appliances based on sensor inputs. The system is able to detect occupancy and environmental conditions, ensuring that electrical appliances operate only when necessary.