Method and system for detecting an airborne trigger

An apparatus comprising:

• a sensor array including a plurality of sensors, the plurality of sensors including a first sensor and a second sensor, wherein the first sensor includes:
• a first cantilevered element including a first coating material having an affinity for a first compound;
• a first capacitive plate spaced from and capacitively coupled to the first cantilevered element, wherein the first capacitive plate is configured to induce a vibration in the first cantilevered element at a first frequency related to a first mass of the first cantilevered element;
• a second capacitive plate spaced from and capacitively coupled to the first cantilever;
• and
• a first frequency detector coupled to the second capacitive plate, the first frequency detector to detect a first change in vibrational frequency of the first cantilevered element as a result of first particles of the first compound coupling to the first coating material, wherein the first frequency detector is configured to generate first sensor output associated with the vibrational frequency of the first cantilevered element;
• wherein the sensor array generates sensor output including the first sensor output usable to generate an alert indicating presence of the first compound when the sensor output indicates a threshold associated with the first sensor is satisfied.

A method of communication data, the method comprising:

• sending an association request from a sensor device to a manager device;
• detecting a presence of a compound at the sensor device based on a sensor of the sensor device, wherein detecting the presence of the compound includes:
• inducing a vibration in a cantilevered element via a first capacitive plate spaced from and capacitively coupled to the cantilevered element, wherein the vibration is related to a mass of the cantilevered element, and wherein the cantilevered element includes a coating material having an affinity for the compound;
• providing an indication associated with a vibrational frequency of the cantilevered element via a second capacitive plate, wherein the second capacitive plate is spaced from and capacitively coupled to the cantilevered element;
• and
• detecting a change in the vibrational frequency of the cantilevered element at a frequency detector based on the indication, wherein the change in the vibrational frequency results from particles of the compound coupling to the coating material, and wherein the frequency detector is coupled to the second capacitive plate;
• and
• transmitting sensor data associated with the presence of the compound to the manager device in response to detecting the presence of the compound.