Arduino Pressure Sensor Module BMP280
High Precision Atmospheric Sensor
BMP280 sensor is an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI! This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy.
Enhancement of GPS navigatione.g.time-to-first-fix improvement，dead-reckoning，slope detection Indoor navigation（floor detection，elevator detection）Outdoor navigation，leisure and sports applications, weather forecast, health care application（e.g. sirometry); Vertical velocity indication（e.g. risk/sink speed); Target devices, handsets such as mobile phones,table PCs, GPS devices, navigation systems, portable health caredevices, home weather stations, flying toys, watches
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