The Waveshare BME280 sensor measures temperature, humidity, and barometric pressure. It supports I2C or SPI communication, with I2C as the default interface and the option to switch to SPI via an I/O setting. The built-in voltage level converter allows operation at 3.3 V or 5 V.

The sensor can be used for environmental monitoring, weather forecasting, altitude measurement, and IoT projects. The package includes a 20 cm, 6-pin PH2.0 cable, as well as educational resources and a manual with examples for Raspberry Pi, Arduino, and STM32.

• Sensor type: Temperature, humidity, and barometric pressure
• Communication interfaces: I2C and SPI
• Operating voltage: 3.3 V / 5 V
• Temperature measurement range: -40 to 85 °C
• Temperature resolution: 0.01 °C
• Temperature accuracy: ±1 °C
• Humidity measurement range: 0 to 100 %RH
• Humidity resolution: 0.008 %RH
• Humidity accuracy: ±3 %RH
• Humidity response time: 1 s
• Humidity hysteresis: 2 %RH
• Barometric pressure measurement range: 300 to 1100 hPa
• Barometric pressure resolution: 0.18 Pa
• Barometric pressure accuracy: ±1 hPa
• Power consumption: <0.1 mA at 1 Hz (H, P, T)
• Dimensions: 27 × 20 mm
• Mounting hole diameter: 2.0 mm
• Package contents: BME280 sensor, 20 cm, 6-pin PH2.0 cable