Giới thiệu GY-68 BMP180 I2C Digital Barometric Pressure Sensor Module
Feature
a Low cost pressure/temperature sensor that work with I2C protocol and very accurate and sensitive toward surrounding. 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.