BME280 Temperature, Humidity & Pressure Sensor: I2C & SPI

Measure barometric pressure, humidity & temperature using this digital sensor breakout board. By converting the barometric pressure reading into altitude, you have a reliable way of determining your robot or aircraft's height! With an accuracy of 1m and noise maximum of 17cm in ultra-high resolution, you'll be sure to have an accurate reading. Comes fully calibrated and ready to use. Uses the I2C communication protocol to provide 16 bit termperature and pressure values! Easy to use and accurate.

Specifications:

• Operating Voltage: 1.7V - 3.6V
• Power consumption: 
  • 1.8 uA @ 1 Hz humidity and temperature
  • 2.8 uA @ 1 Hz pressure and temperature
  • 3.6 uA @ 1 Hz humidity, pressure and temperature
  • 0.1 uA in sleep mode
• Communication Protocol: I2C and SPI
• Communication Speed: up to 3.4 MHz via I2C / up to 10 MHz via SPI 3 or 4 wire
• Full calibrated
• Pressure Range: 300hPa to 1100hPa (+9000m to -500m)'
• Humidity Range: 0 to 100% RH
• Temperature Range: -40C to 85C
• With SPI you can connect multiple sensors together without worrying about I2C address collisions
• Pinout:
  • Vin: 1.7 - 3.6V
  • GND: 0V
  • SCL: Clock Line (to microcontroller such as Arduino or Raspberry Pi)
  • SDA: Data Line (to microcontroller such as Arduino or Raspberry Pi)
  • CSB: Chip Select
  • SDO: Serial Data Out
  • In SPI Mode: CSB -> A2 SCL -> A3 SDO -> A4 SDA -> A5

  • In I2C mode: CSB is left not connected (it's internally pulled up with 10K Ohms)

•  Accuracy:
  • Barometer: ±1 hPa
  • Temperature: ±1.0°C
  • Altitude: ±1 meter  
• Selectable I2C address jumper (solder link GS2)
• I2C pull-up resistors
• Mounting Hole Diameter: 3.5mm