I want to be able to turn on and off a device automatically from an iCal linked to airbnb/[login to view URL] etc.
This is to control the heating prior to guests arrival into a hotel room.
The device is to turn on 4 hours before guest arrival (12noon) and off after the 4 hours is finished (4pm). This I would like to be able to edit as required.
Power through relay: 240v ac max
I am happy using any sort of smart relay/thermostat (currently using nest). If you think you can do this please let me know.