BMP085 Barometric Pressure Sensor Breakout Board
This is a simple breakout board from SparkFun for the BMP085 high-precision, low-power barometric pressure sensor. The BMP085 offers a measuring range of 30 to 110 kPa with an absolute accuracy of down to 0.1 kPa. It uses piezo-resistive technology for robustness, 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 microcontroller via an I²C bus.
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BMP085 product flier (567k pdf)
BMP085 datasheet (654k pdf)
Example ATmega328 code for the BMP085 (23k zip)