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SparkFun Electronics Barometric Pressure Sensor - BMP085 Breakout


Mfr Part #:

This is a simple breakout board for the BMP085 high-precision, low-power barometric pressure sensor in retail packaging. The BMP085 offers a measuring range of 300 to 1100 hPa with an absolute accuracy of down to 0.03 hPa. It's based on piezo-resistive technology for EMC robustness, high accuracy and linearity as well as long term stability. This sensor supports a voltage supply between 1.8 and 3.6VDC. It is designed to be connected directly to a micro-controller via the I2C bus. This breadboard-friendly board breaks out all pins of the BMP085 to a 6-pin 0.1" pitch header. The analog and digital supplies (VDDD and VDDA) of the BMP085 are tied together and broken out to a single pin. We've also put two 4.7k pull-up resistors on the I2C lines.


Product Information
Mfr Part#
Board Type
Arduino Uno
Component Type
Board Color
I2C Data Transfer Rate
Up to 3.4GHz
Sensor Shields/Motors
Pressure Range
300 to 1100mbar
Altitude Range
-500m to 9000m
Conversion Time (Pressure)
Ultra Low Power Mode: 3 - 4.5ms
Standard Mode: 5 - 7.5ms
High Resolution Mode: 9 - 13.5ms
Ultra High Resolution Mode: 17 - 25.5ms
Conversion Time (Temperature)
Standard Mode: 3 - 4.5ms
DC Characteristics
Supply Voltage
3.3V Typ.
0.65" x 0.65"
Package Contents
What's in the Box
Barometric Pressure Sensor

Important Add-Ons

Protection Plans

  • No Service Plan
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