it is very easy to connect | Electronics › Electronics › sms to control appliances › it is very easy to connect January 25, 2017 at 6:52 pm #14368 Ashutosh BhattParticipant it is very easy to connect any bulb or light or fan to relay. use the relay contact terminal as normal switch and it is very easy to drive relay using AVR micro controller. just u need either ULN2003A chip or simple NPN transistors
