BMP180 Digital Barometric Pressure Sensor Board Module Arduino swap BMP085
Using a sensor as capable as the BMP180 you can achieve accurary of 1m, with noise of only 17cm in ultra high resolution noise. The device will operate at only 0.3uA, meaning low current draw for battery powered applications.
This is improved 5 pin version of GY-68 has a on board 3.3v regulator
Apply 3.3v directly into 3.3v pin or power with 3.6v – 6v on VCC pin, then 3.3v gives a low power 3.3v output
Using I2C, the device provides pressure and temperature as 16bit values, which are used along with calibration data within the device are used to provide a temperature compensated altitude calculation.
Operating Voltage : 1.8-3.6V
I2C interface – 3.5Mhz
Size : 21mm x 18mm
Pressure Range: 300hPa to 1100hPa (+9000m to -500m)
Low power consumption – 0.5uA at 1Hz
Works with BMP180/BMP085 Arduino Library
Use for weather forecasting, or calculate altitude from pressure reading.
With built in temperature sensor.
1x BMP180 Digital Barometric Pressure Sensor Board