BMP280 Temperature Air Pressure Sensor

The BMP280 from Bosch measures air pressure and temperature and is the successor to the BMP180. Its precision and very low power consumption make it suitable for mobile applications. The altitude can also be determined from the air pressure, so the sensor is also of interest for model flying. Communication with the microcontroller runs over I2C.

Important: The module works with 1.8 V to 3.6 V. For operation on a 5 V board such as the Arduino UNO, a logic level converter is required.

Recommended Accessories:

• Logic Level Converter 2-Channel 5V / 3.3V
• Dupont Cable M-F 20cm 20 Pieces

Features:

• Measures air pressure and temperature
• I2C address selectable via SDO
• Altitude determination via air pressure
• Very low power consumption

Application Examples:

• Weather stations
• Altitude measurement in model flying
• Mobile, battery-powered applications
• Integration into Home Assistant with ESPHome

Documentation:

• ESPHome documentation: BMP280 Temperature+Pressure Sensor
• BMP280 with Arduino guide (SunFounder, German)
• Arduino library (GitHub)

Technical Data:

• Board marking: GY-BM E/P 280
• Operating voltage: 1.8 V to 3.6 V
• Interface: I2C
• I2C address: SDO low = 0x76, SDO high = 0x77
• Temperature measuring range: -40 to +85 °C
• Air pressure measuring range: 300 to 1100 hPa
• Temperature resolution: 0.01 °C
• Air pressure resolution: 0.18 Pa
• Temperature accuracy: ±1 °C
• Air pressure accuracy: relative ±0.12 hPa (equivalent to ±1 m), absolute ±1 hPa
• Connections: VCC, GND, SCL, SDA, CSB, SDO
• Pitch: 2.54 mm
• Dimensions: 15 × 11 × 2.5 mm
• Weight: 2 g

Scope of Delivery:

• 1× BMP280 temperature air pressure sensor
• 1× Male pin header 6-pin