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BME280 I2C - Presure, Temperature and Humidity Sensor
BME280 is a new generation sensor from BMP085/BMP180/BMP183, with a low altitude noise of 0.25m and the same fast conversion time, and an upgrade from BMP085/BMP180/BMP183. It has the same features but can use either I2C or SPI. For easy and convenient wiring, continue with I2C. If you want to connect multiple sensors without worrying about I2C address collisions, SPI also allows it. BME280 is a specifically developed integrated environmental sensor for mobile applications where size and low power consumption are significant design constraints. The unit combines high accuracy individual pressure, humidity and temperature sensors with low current consumption (1.8μA @ 1Hz), long-term stability and high accuracy (8-pin metal lid 2.5 x 2.5 x 0.93 mm³ LGA package) designed for EMC robustness. The humidity sensor has a highly fast response time to support performance requirements for new applications, such as context awareness and high accuracy across a wide temperature range. The pressure sensor is an absolute barometric pressure sensor with exceptional high accuracy and resolution in very low noise. The integrated temperature sensor is optimized for low noise and high resolution. BME280 provides the flexibility to optimize the device for power consumption, resolution and filter performance.