Internet-of-things methods and systems

A system to adapt an electronic appliance for design or manufacturing variation, said electronic appliance having at least one appliance component, said at least one appliance component having an expected-varying performance profile, wherein a control or stimulus signal is sent to said at least one appliance component, the system comprising a processor which is programmed to perform a method comprising varying said signal sent to said at least one appliance component over a range, said range being a range of unmeasured manufacturing variation of said performance profile of said at least one appliance component, said signal being varied to span said range of unmeasured manufacturing variation of said performance profile of said at least one appliance component to create a uniform experience across a plurality of appliance product instances of said electronic appliance.