The BMP280 barometric pressure sensor is designed for mobile applications. The sensor module is available in a very compact package. Its small size and low power consumption allow implementation in battery-powered devices such as mobile phones, GPS modules, and watches. The BMP280's proven piezoresistive pressure sensor technology offers high accuracy, linearity, long-term stability, and high robustness. It provides flexibility to optimize power consumption, resolution, and filter performance. A test example uses default settings to keep the design simple. BMP280 module, atmospheric pressure sensor module Module model: BMP280-3.3 Chip used: BMP280 Power supply: 3.3V Communication: Standard I2C/SPI communication protocol Air pressure range: 3001100 hPa Uses immersion gold PCB with machine welding process for quality Pin spacing: 2.54 mm Module size: 11.5 mm x 15 mm Typical applications: - GPS precise navigation (dead reckoning, bridge detection) - Indoor and outdoor navigation - Weather monitoring - Sports and health monitoring - Vertical speed indication (rise/sink speed) - Fan power control Color: Purple Material: PCB Size: 11.5 mm x 15 mm Package Contents: - 10 x Barometric Pressure Sensor Module - 10 x Pin header Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement error is +/- 13 cm.