Reference
Last revision 2025/12/16
The content provides a detailed overview of the BMP280 sensor, explaining its library installation, communication protocol, and its principle of using air pressure for altitude measurement and navigation applications.
Library
Communication Protocol Description
The sensor uses Gravity-I2C 4pin communication interface.
Principle
The BMP280 is based on Bosch’s proven Piezo-resistive pressure sensor technology featuring high EMC robustness, high accuracy and linearity and long term stability. Because of the relation between the air pressure and the altitude, we can use the air pressure sensor to measure the altitude and the building height. BMP280 is also suitable for navigation, by the use of Inertia Measurement Unit (IMU), BMP280 can be used in GPS refinement, 3D in-door navigation and floor detection.
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