Receptacle content sensing

A system comprising:

• one or more containers each configured to store a supply of an item unit;
• one or more sensors, each configured to measure waves transmitted to an internal space of a container of the one or more containers, wherein the internal space of the container is fashioned to store one or more item units;
• one or more emitters, each configured to emit a non-radio based transmission of one or more waves to the internal space within for receipt by a respective sensor;
• and
• one or more processors configured to:
• monitor for a change event associated with a respective container, the change event comprising an indication of at least one of:
• a fill order for the respective container, a dispense of an item unit stored within the respective container, an opening or closing of the respective container, sensing a user within a predetermined proximity of the respective container, or a predetermined time;
• and
• based on an occurrence of the change event:
• cause a respective emitter to emit the non-radio based transmission of the one or more waves to an internal space within the respective container;
• receive a measurement of the wave from a sensor associated with the respective container;
• determine a supply status associated with an item unit within the respective container based on the measurement and training data pertaining to measurements associated with past supply statuses for the respective container;
• and
• generate, when the supply status satisfies a predetermined threshold, a notification pertaining to the respective container and the supply status.

A non-transitory machine-readable medium having instructions stored thereon that, when executed by a dispensing device, causes the dispensing device to:

• monitor each of a plurality of containers for a change event associated with the container, the change event comprising an indication of at least one of:
• a fill order for the container, a dispense of an item unit stored within the container, an opening or closing of the container, sensing a user within a predetermined proximity of the container, or a predetermined time;
• based on an occurrence of the change event:
• emit a non-radio based transmission of one or more waves to an internal space within the container and for receipt by a sensor associated with the container, wherein the internal space is fashioned to store one or more item units;
• receive a measurement of the one or more waves from the sensor;
• determine a status of the container based on the measurement and training data pertaining to measurements associated with past statuses for the container;
• and
• when the status satisfies a predetermined threshold, cause an adjustment to the container or the dispensing device.