eSAT Publishing House
Now-a-days, every system is automated to face new challenges in present day situations. The automatic systems erase the need for manual operations and thus are reliable, flexible and more accurate. Hence they are used in every field, especially in electronics automated systems. Probably the most useful things to know are about GSM (Global System for Mobile Communication). It is the only type of cellular service available throughout the world. The authors make use of this GSM capability to develop a system that control and access various units of home appliances, which executes with respect to the signals sent by mobile.