Description:
BME280 is a Temperature, Humidity & Pressure Sensor breakout board.
The board has selectable I2C address jumper (solder link GS2), I2C pull-up resistors, 7 pin header 2.54mm, and two mounting holes 3.5mm.
Default setting of the board; single power rail Vdd=Vdd_IO (solder link GS1), pull-ups resistors (R2, R3) 10k, protocol selector resistor 0ohm (R1), decoupling capacitors 0.1uF on both power supply pins Vdd & Vdd_IO.
If you connect board to both power rails VDD_IO 1.8V and VDD 3.3V be sure to remove the power rail jumper GS1!
Even better, this product is ready to be plugged in since it already has soldered pins. Saving time and avoiding danger.

Specifications:
Interface: I2C and SPI
Supply Voltage: 3.3V
Measurements: Temperature, Pressure, Humidity. Pressure can be converted to altitude.
Compatibility: All Raspberry Pi and any microcontroller with I2C or SPI capabilities.
Soldering: Comes Pre-Soldered.
Temperature Range: -40 - 85 °C
Pressure Range: 300 - 1100 hPa
Humidity Range: 0 - 100 %
Humidity Response Time: 1 s
Current Consumption:~3.6 μA

Pins:
VCC: This pin is used for Supply Voltage.
GND: This pin is used for ground.
SCL: This pin is used for the clock pulse for I2C communication.
SDA: This pin is used for transferring data through I2C communication.
CSB: This pin can be used to allow multiple devices to share the same I2C bus.
SDO: This pin can be used to select the device's I2C address when multiple BME280 sensors are connected to the same I2C bus.

Package Included: 2pcs BME280 3.3V Atmospheric Pressure Sensor Module