Waveshare® BME280 Environmental Sensor Expansion Board Module Temperature/Humidity/Air Pressure

Documents Manual Click here to openSchematic Click here to openDatasheet Click here to openCode Click here to openOverview A tiny sensor with BME280 onboard sensing environmental temperature humidity and barometric pressure It supports both I2C and SPI interfaces also is compatible with 3 3V 5V voltage levels Due to its ultra small form factor low power consumption high precision with stability the BME280 Environmental Sensor is suited for applications such as environment monitoring weather forecast altimeter and IoT projects and so on Features Supports I2C default configurable slave addressSupports SPI switch to SPI via I O settingOnboard voltage level translator compatible with 3 3V 5V operating voltageSpecifications Operating voltage 3 3V 5VCommunication interface I2C SPITemperature sensing 40 85°C resolution 0 01°C accuracy ±1°C Humidity sensing 0 100 RH resolution 0 008 RH accuracy ±3 RH response time 1s delay ≤2 RH Barometric pressure sensing 300 1100 hPa resolution 0 18Pa accuracy ±1hPa Power consumption 0 1mA 1Hz H P T Dimension 27mm x 20mmMounting hole size 2 0mmPinouts PINI2CSPIVCC3 3V 5V power supplyGNDGroundSDA MOSII2C dataSPI data master output slave inputSCL SCKI2C clockSPI clock inputADDR MISOI2C address chip selection high level default address 0x77 low level address 0x76SPI data master input slave outputCSNCSPI chip selection low active Package includes 1 x BME280 Environmental Sensor