I’m looking for some advice. We have smart thermostats and hot water heaters that have saved us a fortune. We activate everything once our guests check in. We are looking for a smart lock that can be controlled/reprogrammed thru Wi-Fi as we have had a problem with guests just ignoring our check in times and sometimes entering several hours early. A friend uses a system where the access code becomes active 30 minutes before check in and stops working 30 minutes after checkout. We also currently use a d-link motion sensor inside our home to let us know when someone enters. The d-link system is no longer supported by the manufacturer. My question is, has anyone used a Samsung smart system or other system that would control a motion sensor as well as the door lock? We would like a system that tied into our Honeywell thermostats and wion water heater controllers but I know this is a long shot.