SparkFun Pressure Sensor Breakout - MS5803-14BA

Description

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. Depending on how you interpret the data, you can determine altitude, water depth, or any other tasks that require an accurate pressure reading. What makes the MS5803-14BA unique is the gel membrane and antimagnetic stainless steel cap that protects against 30 bar water pressure.

We have broken out all the pins you need including GND and 3.3V for power, SDA/SDI and SCL/SCLK for an I2C interface and SD0, AD/CS, and PS for an SPI interface. The MS5803-14BA Breakout offers a resolution range of 1 / 0.6 / 0.4 / 0.3 / 0.2 mbar. Be aware that to switch between I2C and SPI interfaces a little bit of soldering between solder pads will be required.

Heads up! While the IC is capable of outputting data via I2C and SPI, the Arduino Library and example was only written to output via I2C! You'll need to modify the jumpers on the board for SPI mode by removing solder from the pull-up resistors jumper pads and close the other two jumpers. Additionally, you will need to write a library to communicate with the MS5803 in SPI mode if you plan on using this with Arduino.

Features

• Operating Voltage - 1.8 to 3.6 V
• Peak Supply Current - 1.4 mA
• Operating Range - 0 to 14 bar
• Resolution - 1 / 0.6 / 0.4 / 0.3 / 0.2 mbar
• I²C and SPI Interface
• Gel Protected

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