Patent ID: 8538589

Claim:
An apparatus for use in a building automation system, the apparatus comprising: a plurality of microelectromechanical sensors disposed on a single substrate, the plurality of microelectromechanical sensors being configured to perform a plurality of different sensor functionalities; a non-volatile memory associated with the apparatus and operable to store configuration information, the configuration information identifying a first sensor functionality of the plurality of different sensor functionalities to be enabled in the apparatus; a communication device operable to communicate sensor values to an external device; a processing device operably coupled to each of the plurality of microelectromechanical sensors to receive measurement information therefrom, the processing device operable to provide the sensor values to the communication circuit; a signal processing device configured to receive sensor signals from the microelectromechanical sensors and to provide sensor values to the processing device corresponding to the measurement information indicated by the sensor signals, wherein the processing device is configured to cause the signal processing device to process sensor signals only from the subset of microelectromechanical sensors configured to perform the first sensor functionality; and wherein said processing device is configured to provide sensor values to the communication circuit from only a subset of less than all of the plurality of microelectromechanical sensors, the subset being selected based on the configuration information stored in the non-volatile memory and including only the micromechanical sensors configured to perform the first sensor functionality such that the sensor functionalities in the plurality other than the first are not enabled in the apparatus.