Gravity I2C BME280 Weather Station Sensor Humidity/Pressure/Temperature

This Gravity environmental sensor from DFRobot measures temperature, humidity and air pressure with the BME280 from Bosch. It is connected via the Gravity I2C connector; for SPI there are additional connections in XH2.54 pitch. The air pressure is particularly stable: the offset temperature coefficient is ±1.5 Pa/K, which corresponds to about ±12.6 cm of altitude per 1 °C temperature change. The sensor is therefore also suitable for altitude measurement and floor detection.

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces

Features:

• Temperature, humidity and air pressure in one sensor
• Gravity I2C, additionally SPI via XH2.54 pin header
• For 3.3 V and 5 V microcontrollers
• Arduino library DFRobot_BME280
• Compact at 22 × 25 mm

Application Examples:

• Weather stations and weather forecasting
• Controlling heating, ventilation and air conditioning
• Altitude measurement, climb and sink rate
• Floor detection in buildings

Documentation:

• Wiki DFRobot SEN0236
• Arduino library DFRobot_BME280 (GitHub)
• Schematic (PDF)
• Datasheet BME280 (PDF)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: SEN0236
• Sensor: Bosch BME280
• Operating voltage: 3.3 V to 5.0 V
• Operating current: 2 mA
• Operating temperature: -40 °C to +85 °C
• Temperature: -40 °C to +85 °C, resolution 0.1 °C, deviation ±0.5 °C
• Humidity: 0 to 100 % RH, resolution 0.1 % RH, deviation ±2 % RH
• Humidity sampling time: 1 s
• Air pressure: 300 hPa to 1100 hPa
• Offset temperature coefficient air pressure: ±1.5 Pa/K
• Gravity I2C: + (3.3 V to 5 V), - (GND), C (SCL), D (SDA)
• Dimensions: 22 × 25 mm
• Weight: 12 g

Scope of Delivery:

• 1× Gravity BME280 environmental sensor
• 1× pin header XH2.54 6-pin
• 1× Gravity I2C/UART sensor cable 4-pin