A switch app that allows the IoT switch implemented in the Internet environment WIFI network to be used in places without an Internet environment, regardless of location.

1. Inexpensive communication maintenance cost compared to using a wireless Internet network (LPWA communication method)
2. Smart switch that allows remote control of the driving device in an external environment without an Internet network
3. Date, time, and repetitive switch operation determined by the schedule function
4. Sensors can be added as options, so you can operate the switch while checking sensor information.