Staging Climate Control System Controller Functions Based on Available Power

A controller of a climate control system, the controller comprising:

• power stealing circuitry;
• one or more charge storage device for storing charge provided by the power stealing circuitry and for providing power for performance of functions of the controller;
• and
• a processor configured to:
• for each of the controller functions, predefine a maximum wait time corresponding to the controller function;
• before performance of a given one of the controller functions, compare at least once the current level of charge on the one or more charge storage device to a predefined first voltage level, and
• based on the comparing, delay performance by the controller of the given one of the controller functions until the corresponding predefined maximum wait time has passed and/or the current level of charge on the one or more charge storage device has reached the predefined first voltage level.

A thermostat comprising:

• a wireless module for providing wireless communication by the thermostat;
• power stealing circuitry;
• one or more charge storage device for storing charge to provide power from the power stealing circuitry for performance of a plurality of thermostat functions;
• and
• a processor configured to:
• for each of at least a plurality of functions of the wireless module, predefine a maximum wait time corresponding to the wireless module function;
• before performance of one of the wireless functions, compare at least once the current level of charge on the one or more charge storage device with a predefined voltage level;
• and
• based on the current level of charge, delay performance of the one of the wireless functions until one or more of the following occurs:
• the predefined maximum wait time corresponding to the one of the wireless functions has expired, and the current level of charge has reached the predefined voltage level.