XinaBox SW03

The SW03 xChip is equipped with a weather sensor that is capable of measuring the temperature, atmospheric pressure and altitude. It is based on the MPL3115A2 manufactured by NXP Semiconductors.

The MPL3115A2 is a compact, piezoresistive, absolute pressure sensor with an I2C digital interface. MPL3115A2 has a wide operating range of 20 kPa to 110 kPa, a range that covers all surface elevations on earth. The MEMS is temperature compensated utilizing an on-chip temperature sensor. The pressure and temperature data is fed into a high resolution ADC to provide fully compensated and digitized outputs for pressure in Pascals and temperature in °C. The compensated pressure output can then be converted to altitude.

Please note, SW03 and all other xChips is currently only supported in Zerynth Studio with XinaBox CW02. Review the Quick Start guide for interfacing xChips.

Technical Details


  • I2C interface
  • Fully Compensated Internal
  • Temperature Operating Range: -40°C to 85°C
  • Absolute Pressure Operating Range: 20 kPa to 110 kPa
  • Precision ADC resulting in 0.1 meter of effective resolution
  • Direct reading