hi
I need some help in my school project.. i'm supposed to make a temperature controling system... where when it's hot a fan works & when it's cold a heater works... My problem is that I don't know what the realy switch is .. i never worked with it before & i dunno its connection so can anybody help me please...
I need some help in my school project.. i'm supposed to make a temperature controling system... where when it's hot a fan works & when it's cold a heater works... My problem is that I don't know what the realy switch is .. i never worked with it before & i dunno its connection so can anybody help me please...
