Waveshare BME280 - Temperature, Humidity & Barometric Pressure Sensor

Overview A tiny sensor breakout 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 address Supports SPI, switch to SPI via I/O setting Onboard voltage level translator, compatible with 3.3V/5V operating voltage Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32) Specifications Operating voltage: 3.3V/5V Communication interface: I2C/SPI Temperature 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 20mm Mounting hole size: 2.0mm Pinouts PIN I2C SPI VCC 3.3V/5V power supply GND Ground SDA/MOSI I2C data SPI data master output/slave input SCL/SCK I2C clock SPI clock input ADDR/MISO I2C address chip selection, high level (default) address: 0x77; low level address: 0x76 SPI data master input/slave output CS NC SPI chip selection, low active Dimensions Development Resources Documentation: www.waveshare.com/wiki/BME280_Environmental_Sensor