Go to File > Examples >SparkfunBMP180 > SFE_BMP180_example. Move the BMP180_Breakout_Arduino_Library folder to your Arduino IDE installation libraries folder.Rename your folder from BMP180_Breakout_Arduino_Library-master to BMP180_Breakout_Arduino_Library.zip folder and you should get BMP180_Breakout_Arduino_Library-master folder Click here to download the SFE_BMP180 library.To control the BMP180 barometric sensor, you need to install the SFE_BMP180 Library. Wire your sensor to the Arduino as shown in the schematics below. Wiring the sensor to the Arduino is pretty straightforward: Pin You can use the preceding links or go directly to /tools to find all the parts for your projects at the best price! This means that it communicates with the Arduino using just 2 pins. The BMP180 barometric sensor communicates via I2C interface. It can also measure altitude and temperature. It has a measuring range from 300 to 1100hPa with an accuracy down to 0.02 hPa. It measures the absolute pressure of the air around it. It is a very small module with 1mm x 1.1mm (0.039in x 0.043in). The BMP180 barometric sensor (model GY-68) is the one in the following figure (front and back view). It is also applicable for other similar barometric sensors. This post is about how to use the BMP180 barometric sensor with the Arduino.
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