1. **Barometric Pressure Measurement**:

- The BMP180 is a digital barometric pressure sensor that measures atmospheric pressure with high accuracy. It provides pressure data that can be used to determine altitude, weather forecasting, and other pressure-related applications.

2. **Temperature Measurement**:

- Besides pressure, the BMP180 also measures temperature, allowing for compensation and more accurate pressure readings. It outputs temperature in degrees Celsius, which can be used for environmental monitoring.

3. **I2C Interface**:

- The sensor communicates with microcontrollers via the I2C protocol, making it easy to integrate with various platforms such as Arduino and Raspberry Pi. It provides pressure and temperature data in a digital format for easy use in projects.

### Applications:

- **Altitude Measurement**: Used in applications like drones, weather balloons, and GPS devices to determine altitude based on atmospheric pressure.

- **Weather Stations**: Measures barometric pressure and temperature for weather forecasting.

- **Environmental Monitoring**: Monitors atmospheric conditions in various scientific and industrial applications.