An article of apparel (100, 600), comprising: a structure configured to enclose a human body part; and a pressure sensor array including multiple pressure sensors separately positioned at locations within the structure, wherein each pressure sensor is configured to output a signal indicative of an amount of pressure being exerted on the pressure sensor by an external mechanical force; characterised in comprising a controller, coupled to the pressure sensor array, configured to: receive signals from the pressure sensors; and based on a sequence and a timing of the signals as received, determine a command related to a function of a device; and an electronic display, coupled to the controller, configured to display information related to the function; wherein at least some of the pressure sensors of the pressure sensor array are components of an integrated pressure sensor assembly, wherein the integrated pressure sensor assembly comprises: an electrically conductive film having a first resistance at a location when not acted on by an external mechanical force at the location and a second resistance less than the first resistance at the location when acted on by the external mechanical force at the location; a first conductor coupled to a first major surface of the electrically conductive film and to an electrical reference; and for each pressure sensor of the integrated pressure sensor assembly, one of a plurality of second conductors separately coupled to a second major surface of the electrically conductive film and to the controller, each second conductor separately corresponding to one of the pressure sensors of the integrated pressure sensor assembly; wherein one of the pressure sensors proximate the location is configured to output the signal indicative of the change from the first resistance to the second resistance upon the location being contacted by the external mechanical force. a structure configured to enclose a human body part; and a pressure sensor array including multiple pressure sensors separately positioned at locations within the structure, wherein each pressure sensor is configured to output a signal indicative of an amount of pressure being exerted on the pressure sensor by an external mechanical force; characterised in comprising a controller, coupled to the pressure sensor array, configured to: receive signals from the pressure sensors; and based on a sequence and a timing of the signals as received, determine a command related to a function of a device; and receive signals from the pressure sensors; and based on a sequence and a timing of the signals as received, determine a command related to a function of a device; and an electronic display, coupled to the controller, configured to display information related to the function; an electrically conductive film having a first resistance at a location when not acted on by an external mechanical force at the location and a second resistance less than the first resistance at the location when acted on by the external mechanical force at the location; a first conductor coupled to a first major surface of the electrically conductive film and to an electrical reference; and for each pressure sensor of the integrated pressure sensor assembly, one of a plurality of second conductors separately coupled to a second major surface of the electrically conductive film and to the controller, each second conductor separately corresponding to one of the pressure sensors of the integrated pressure sensor assembly; wherein one of the pressure sensors proximate the location is configured to output the signal indicative of the change from the first resistance to the second resistance upon the location being contacted by the external mechanical force.