i am making a project on GSM based automation system. I am confused over the realay working as i have never worked on it before. Can anyone suggest which relay can be the best for operation of my project and also how i can interpret it physically.
well the project goes like there a gsm module connected to the microcontoller. when a specified text is received over the number in the GSm module, the microcontroller activates and based on the text it has received it actuates a specific home appliance as in a fan or a tube light. i am clear of the portion till actuation but i am unable to get the woking of the relay. the relay in the circuit is 12V 1C/O but i dont understand the mening nor how it shall help me work out.