Hotel wireless connectivity and smart device control

A smart device control system, comprising:

• a plurality of smart devices distributed in a plurality of hotel rooms of a hotel, wherein the plurality of smart devices;
• and
• a hotel connectivity system, comprising one or more processors, wherein the hotel connectivity system is configured to:
• generate a first machine-readable code indicative of a link through which control of a set of smart devices is performed, wherein the set of smart devices is located in a hotel room of the plurality of hotel rooms;
• output, via a display located in the hotel room, the first machine-readable code and a second machine-readable code, wherein the second machine-readable code provides wireless network credentials to access a wireless network;
• receive a request to change a state of a smart device of the set of smart devices from a user mobile device;
• in response to the request, transmit a command to the smart device of the set of smart devices;
• after transmitting the command, determine that a reservation linked to the hotel room has expired;
• and
• in response to determining that the reservation linked to the hotel room has expired, revoke access to control the plurality of smart devices by the user mobile device.