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BME280 Temperature, Humidity and Pressure Sensor

Sensor

Bosch sensor that measures temperature, humidity and air pressure on one chip; talks over I2C. Far more stable and precise than the DHT series, and pressure also gives you altitude. Used in weather station projects. Not to be confused with the look-alike BMP280, which does not measure humidity.

Specifications

Measures

Temperature, humidity, pressure

Temperature range

-40 - +85 °C (±1 °C)

Humidity range

0% - 100% (±3%)

Pressure range

300 - 1100 hPa (±1 hPa)

Supply voltage

3.3V (modules with a regulator also take 5V)

Interface

I2C (address 0x76 / 0x77) or SPI

Current

~3.6 µA (one reading per second)

Pins

VIN, GND, SCL, SDA

Shop prices

• RobotistanIn stock364.70 ₺
• MotorobitIn stock404.00 ₺
• RobocomboIn stock538.00 ₺
• KomponentciIn stock569.28 ₺
• RobotsepetiIn stock609.55 ₺
• F1 DepoOut of stock231.00 ₺
• Robo90Out of stock238.08 ₺
• RobotzadeOut of stock300.00 ₺
• Robolink MarketOut of stock309.00 ₺
• Direnc.netOut of stock557.93 ₺

Prices read from the shops' pages on 22 October 2026. Prices and stock may have changed since; check at the shop before you buy.

Projects with this part

• Weather StationIntermediate40 minA small weather station for a room or a balcony: the BME280 sensor measures temperature, humidity and air pressure, and the Arduino works out the approximate altitude from the pressure. The readings show page by page on a 16x2 LCD; each press of the button turns to the next page, and the values refresh every two seconds. It teaches building an I2C line where two modules share the same two wires (SDA and SCL), working out altitude from pressure, and updating an LCD without flicker. Install "Adafruit BME280 Library" (with the extra libraries it asks for) and "LiquidCrystal I2C" from the Library Manager.Open project