GY-68 BMP180 Digital Barometric Pressure Sensor is a compact breakout board that uses the Bosch
BMP180 sensor to measure:
Barometric pressure
Temperature
Altitude (calculated)
Pressure:300 to 1100 hPa (hectopascals)
Temperature:-40 °C to +85 °C
Altitude (calc.):~0–9,000 meters (based on pressure)
Voltage Input:3.3V only (no onboard regulator)
Communication:I²C (2-wire)
Form Factor:Small and easy to integrate
Typical Use:Weather stations, altimeters