This environmental sensor senses ambient temperature, humidity, and atmospheric pressure, supports and SPI interfaces, and is compatible with both 3.3V and 5V voltage levels. Compact, low power, high accuracy, and excellent stability suitable for applications such as environmental monitoring, weather forecasting, altitude monitoring, and the Internet of Things. High Sensor: The BME280 is a versatile environmental sensor that accurately measures temperature, humidity, and barometric pressure. Ideal for weather stations, home automation, and environmental monitoring. Compatibility: Easily integrates with for , for , and other microcontrollers using or SPI communication protocols, making it perfect for DIY electronics projects. Applications: Use this sensor for HVAC systems, indoor air quality monitoring, and even advanced hobbyist projects like weather prediction models. Operating Voltage: 5V/3.3V Communication Interface: /SPI Temperature Detection: -40-85 (resolution 0.01, accuracy 1) Humidity Detection: 0-RH (resolution 0.008%RH, accuracy +3%RH, response time 1s, hysteresis less than equal 2%RH) Air Pressure Detection: 300-1100 (resolution 0.18Pa, accuracy 1hPa) Power Consumption: Less than 0.1mA@1Hz (H, P, T) Color:As Shown Material:PCB Package Contents: 1 * Developmend Board 1 * Connecting Wires Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.