The BMP180 offers a pressure measuring range of 300 to 1100 hPa with an accuracy down to 0.02 hPa in advanced resolution mode. It’s based on piezo-resistive technology for high accuracy, ruggedness and long term stability. These come factory-calibrated, with the calibration coefficients already stored in ROM. What makes this sensor great is that it is nearly identical to its former rev, the BMP085!

Features

• Digital two wire (I²C, TWI, “Wire”) interface
• Wide barometric pressure range
• Flexible supply voltage range (1.8V to 3.6V)
• Ultra-low power consumption
• Low noise measurements
• Factory-calibrated
• Includes temperature sensor
• Low-profile with a small footprint

Parts list

• 1 X Crowtail- BMP180 Barometer
• 1 X Crowtail 4 Pin Cable

Links

• BMP180 Barometer Schematic
• BMP180 Barometer Program
• Wiki link