SMS- Controlled Home Automation Using Arduino

In recent times, the controlling and monitoring of electrical appliances has been an essential component of technologically advanced smart homes.This paper details the particulars of designing and implementing an inexpensive home automation system based on SMS capable of controlling any appliance using an Arduino microcontroller and a GSM unit.The system allows users to control the appliances around the house through SMS command which is advantageous in places where there is intermittent internet.The system is based on the Arduino UNO which is connected to a SIM800L GSM unit and an on-off relay unit which allows switching of appliances based on SMS command.The system was tested with a variety of appliances including fans, electric pumps, and lights and the system operated satisfactorily within timescales that were anticipated.The results suggest that the system is functional, easy to implement, and flexible in reach for residences both in areas with pronounced urban development and those with noted rural characters.This work contributes to the growing body of work towards smart systems for everyone by proposing a solution that is uncomplicated for the user and to implement.