A pressure sensor integrated onto an electronic circuit substrate. The pressure sensor measures the effect of the ambient air pressure on a characteristic of the pressure sensor that can be translated into a variable pressure measurement. Another embodiment of the pressure sensor is a pressure switch having a set point that can be configured at, or after, the time of installation of the associated circuit substrate.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of U.S. application Ser. No. 10/459,669, filed Jun. 11, 2003, now U.S. Pat. No. 6,919,521, which is a continuation-in-part of U.S. application Ser. No. 10/096,566, filed Mar. 13, 2002, now U.S. Pat. No. 6,580,042.
