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Over many modules present in market, BMP measures barometric pressure more accurately. So this module can be used on systems which work on battery like smart watches and mobile phones. Case3: Where high speed communication is of need.
With altitude measure, high speed sense and temperature sensor on board the use of BMP module is promoted even further than other modules. There are only two pins present to communicate with the module. And this communication is I2C interface. The data is sent to the module or received from the module though I2C interface. So we have to get the information of barometric pressure and temperature through this interface. The I2C interface is established as shown in figure.
Although connecting to BMP sensor module is easy communicating with it is not easy. Usually to send information to module or receive the information from it we have to follow the protocol.
This protocol is sequence of steps to be followed without an error. These steps are complex to follow for starters. So using libraries which are pre written for the module is ideal. Using libraries makes the communication easy. All you need to do is download these libraries and call them in programs. Once this data is available we can perform functions of desire.
Hence by using libraries we can use BMP module easily.
Pressure sensor BMP280
Sensor De Pressão e Temperatura Bmp280
BMP180 - Capteur de pression barometrique - Temperature - Altitude