Key features

• 3-in-1 sensor: measures temperature, humidity, and barometric pressure
• High precision and low power consumption
• Supports both I2C and SPI communication interfaces
• Capable of calculating altitude based on atmospheric pressure
• Compact footprint perfect for space-constrained projects
• Wide operating range for versatile environmental monitoring
• Easy to interface with Arduino, ESP8266, ESP32, and Raspberry Pi

Good to know

• The BME280 is natively a 3.3V device. If using a 5V microcontroller (like a standard Arduino Uno), use a logic level converter for the I2C/SPI lines or ensure your breakout board has an onboard regulator and level shifting.
• Ensure you are using the correct I2C address (0x76 or 0x77) in your code, as it depends on the configuration of the SDO pin on the module.
• Avoid exposing the sensor to direct sunlight, water, or extreme condensation, as this can permanently affect the humidity readings.
• Keep the sensor away from heat-generating components (like voltage regulators) on your PCB to ensure accurate temperature readings.
• For altitude calculations, you must provide the current sea-level pressure for your location in your code.