I am looking for a simple, low cost solution to control on/off of mains supply to certain equipment. The control will be done using one of the output pin of Arduino Uno.
The input trigger and how to control it is application dependent. e.g. controlling an equipment or controlling supply to section of home but in principle mains control module implementation remains same. So looking for solution which is safe while doing connections as well as while in use in indoor conditions for years.