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5. GSM function
By sending and receiving SMSs with the appropriate encryption, the thermostat can be switched on, off and
queried for viewing data on the room and it can perform various other functions; interaction with the device for
remote control is via the By-clima smartphone app that automatically creates the encrypted SMSs.
Using these features you can then:
• Set the operating parameters of the thermostat.
• Send commands.
• Query the thermostat to know the current operating status.
• Receive previously configured and enabled alarm notifications.
• Receive from the thermostat any SMSs that have not been recognized as command SMSs. Command
and monitoring SMSs are generated by the By-clima App while voice calls, reading and therefore interpreting
incoming SMSs must be managed manually by the user with the standard smartphone functions.
More in detail, the functions associated with GSM mode via SMS or via voice calls are:
• Thermostat management = setting the operating mode (Off, Antifreeze, Away, Manual, Nighttime reduction).
• Thermostat configuration = programming all the temperature control parameters that can also be set
locally by the thermostat and configuration of all the functions of the GSM module that instead cannot be
programmed locally.
• Requesting the current operating status of the thermostat (for all the various types).
• Notification of alarms for power supply voltage failure/restoration (only if configured and paired with users
saved in the contacts list).
• Notification of technical alarms for exceeding the temperature thresholds (only if configured, enabled and
paired with users saved in the contacts list).
• Receiving SMSs sent by the thermostat as they are not recognized as being in compliance with the commu-
nication protocol (only if configured and paired with users saved in the contacts list).
Generally, the configuration commands do not require confirmation SMSs as instead is the case for the mon-
itoring commands; so, in order to have confirmation on successfully setting a parameter, you need to query
the thermostat about its status.
Otherwise, all the command operations that, for example, change the active temperature control mode, will
generate an SMS for notification and confirmation of the operation.
Using the "phone call" function, which generates a voice call from a recorded user, you can obtain information
on the general status of the device. Associated to the voice call, you can also switch the operating state, in
the following way:
• In heating mode:
- from Manual to Antifreeze
- from any other mode to Manual
• In air-conditioning mode:
- from Manual to OFF
- from any other mode to Manual
Also in this case a report of the general status of the GSM device is sent to the caller number.
