Description: BME280, the precision sensor from Bosch, is soldered onto PCB. Not only the pressure and the temperature, this sensor can measure humidity. It uses both I2C and SPI (supports 3-, 4-wire SPI) interface Make sure to put SDO to high to get address 0x77. This will work with Adafruit BME280 library perfectly. Specifications: Supply Voltage: 1.8 - 5V DC Interface: I2C (up to 3.4MHz), SPI (up to 10 MHz) Temperature: -40 to +85°C Humidity: 0-100% Pressure: 300-1100 hPa Temperature: 0.01°C Humidity: 0.008% Pressure: 0.18Pa Temperature: +-1 Humidity: +-3% Pressure: +-1Pa I2C address SDO LOW 0x76 SDO HIGH£ 0x77 Package included: 1* BME280 Atmospheric Pressure Sensor Temperature Humidity Sensor Breakout