DSPC01 is a type of digital sensor module which consists of a high resolution piezo-resistive pressure sensor a compass sensor and a MCU. By one module DSPC01 can measure pressure temperature and compass parameters. The output data are digitally calibrated and users can easily access related data through I2C interface which shortens the development time and simplifies the work of designers greatly. For pressure measurement DSPC01 module provides three modes: Altitude mode Pressure mode and Pattern mode. The pattern mode is used for forecasting the variation of weather and users can know the weather conditions through the weather patterns (sunny cloudy and rainy) displayed on the screen. This function is similar to what weather station offers but more convenient and concise.