High Resolution Pressure Sensor - MS5803-14BA I2C & SPI

This MEMS pressure sensor measures the absolute pressure of the fluid around it which includes air, water, and anything else that acts like a viscous fluid. Determine altitude and water depth using high resolution accurate pressure readings.

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Availability: SHIPS TODAY

Last Updated: 02/04/2023





  • MS5803-14BA Pressure Sensor Breakout
  • High resolution pressure sensor
  • Both I2C and SPI interfaces
  • MEMS pressure sensor
  • Measures the absolute pressure of the fluid around it
  • Works for measuring the pressure in air, water, and any other viscous fluids
  • Useful for determining altitude, water depth, or any other tasks that require an accurate pressure reading.
  • What makes the MS5803-14BA unique is the the gel membrane and antimagnetic stainless steel cap that protects against 30 bar water pressure.
  • Resolution range of 1 / 0.6 / 0.4 / 0.3 / 0.2 mbar
  • Solder across the two solder points to jump and switch between I2C and SPI interfaces
  • Address 0x76 or 0x77 selectable by solder jump for addressing multiple boards at the same time


  • Operating Voltage: 1.8V - 3.6V
  • Power consumption: 1.4mA
  • Communication Protocol: I2C and SPI
  • Communication Speed: up to 3.4 MHz via I2C / up to 10 MHz via SPI 3 or 4 wire
  • Full calibrated
  • Pressure Range: 0hPa to 14000hPa (0 to 14 bar)
  • Resolution: 1 / 0.6 / 0.4 / 0.3 / 0.2 mbar
  • Gel protected
  • With SPI you can connect multiple sensors together without worrying about I2C address collisions
  • Pinout:
    • GND: 0V
    • 3.3V: 3.3V
    • SDA/SDI: Data Line (to microcontroller such as Arduino or Raspberry Pi)
    • SCL/SCLK: Clock Line (to microcontroller such as Arduino or Raspberry Pi)
    • SDO: Serial Data Out
    • AD/CS: Chip Select
    • PS: SPI PS
  • Use GND and 3.3V for power, SDA/SDI and SCL/SCLK for an I2C interface and SD0, AD/CS, and PS for a SPI interface.
  • Dimensions: 18.3mm x 20.5mm
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