Modules and methods including magnetic sensing structures

A method of magnetic sensing, the method comprising:

• sensing, with a patterned magnetic structure of a magnetic module, a magnetic field external to the magnetic module, wherein the patterned magnetic structure is physically aligned with an aperture in the magnetic module, and wherein the aperture opens to an environment that is external to the module;
• processing, with circuitry of the magnetic module, an output of the patterned magnetic sensing structure;
• and
• outputting a signal representing the magnetic field sensed by the patterned magnetic structure and processed by the circuitry.

A magnetic module comprising:

• means for magnetic sensing;
• circuitry arranged to process signals associated with the means for magnetic sensing;
• and
• an aperture in the magnetic module, the aperture opening to an environment that is external to the magnetic module, the aperture being physically aligned with the means for magnetic sensing, and the means for magnetic sensing being arranged to sense magnetic stimuli in the environment that is external to the magnetic module.