An aerosol delivery device comprising: a housing defining a reservoir configured to retain aerosol precursor composition; and a plurality of electronic components interconnected by or connected to one or more conductors (320, 322), the plurality of electronic components including: a heating element; a control component configured to operate in an active mode in which the control component is configured to control the heating element to activate and vaporize components of the aerosol precursor composition; and a Hall effect current sensor (214; 214a) positioned proximate a conductor of the one or more conductors, and configured to measure to a current through the conductor, the control component being configured to control operation of at least one functional element of the aerosol delivery device in response to the current so measured, wherein the conductor of the one or more conductors is connected to a terminal that is connected or connectable with a power source, characterized in that the control component in the active mode is configured to direct power from the power source to the heating element to activate and vaporize components of the aerosol precursor composition, and wherein the control component being configured to control operation of the at least one functional element includes being configured to cut off the power supply in an instance in which the current through the conductor is above a threshold level indicative of an over-current or over-voltage condition. a housing defining a reservoir configured to retain aerosol precursor composition; and a plurality of electronic components interconnected by or connected to one or more conductors (320, 322), the plurality of electronic components including: a heating element; a control component configured to operate in an active mode in which the control component is configured to control the heating element to activate and vaporize components of the aerosol precursor composition; and a Hall effect current sensor (214; 214a) positioned proximate a conductor of the one or more conductors, and configured to measure to a current through the conductor, the control component being configured to control operation of at least one functional element of the aerosol delivery device in response to the current so measured, a heating element; a control component configured to operate in an active mode in which the control component is configured to control the heating element to activate and vaporize components of the aerosol precursor composition; and a Hall effect current sensor (214; 214a) positioned proximate a conductor of the one or more conductors, and configured to measure to a current through the conductor, the control component being configured to control operation of at least one functional element of the aerosol delivery device in response to the current so measured, wherein the conductor of the one or more conductors is connected to a terminal that is connected or connectable with a power source, characterized in that the control component in the active mode is configured to direct power from the power source to the heating element to activate and vaporize components of the aerosol precursor composition, and wherein the control component being configured to control operation of the at least one functional element includes being configured to cut off the power supply in an instance in which the current through the conductor is above a threshold level indicative of an over-current or over-voltage condition.