A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. At least one shopping list is received, a shopping list trend is established, and a smart list is generated with the control logic, in accordance with the shopping list trend, such that the smart list predictive of a next shopping list. Coexistence interference is also avoided by providing a hybrid automatic repeat request mechanism which accounts for coexistence interference by providing a fixed or variable on-interval parameter and an activity parameter indicating whether non-LTE activity is present to maximize a time interval for non-LTE devices without interference from LTE activity on the same device. The voltage at a reference point in a portion of the sensing circuit including the first thermistor device is additionally monitored and compared with the voltage at the reference point in the sensing circuit including the second thermistor device.