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What Is the BMP280? Pressure and Temperature Sensor and Uses

October 21, 2026 4 min read
Quick answer

The BMP280 is a Bosch sensor that measures pressure and temperature. It is similar to the BME280 but does not measure humidity and is cheaper; it communicates over I2C (0x76/0x77) or SPI. It is used for barometric pressure and altitude measurement and drone/altimeter projects. Where humidity is not needed, it is a cheap alternative to the BME280.

The BMP280 is a Bosch sensor that measures pressure and temperature. It is very similar to the BME280 but does not measure humidity and is cheaper. It communicates over I2C/SPI. For the concept, see what is a temperature sensor.

What is the BMP280 used for?

Barometric pressure and altitude measurement, weather forecasting, drone/altimeter projects. Where humidity is not needed, it is a cheap alternative to the BME280.

Specifications

ParameterValue
MeasuresPressure + temperature (NO humidity)
InterfaceI2C (0x76/0x77) or SPI
Pressure range~300–1100 hPa
SupplyChip 3.3 V (module 3.3–5 V)

Equivalents

  • BME280: also measures humidity.
  • BMP180: an older pressure sensor.
  • MS5611: a high-precision altimeter.

Find it in our catalog

Use the BMP280 search.

Frequently Asked Questions

What is the BMP280?+
The BMP280 is a Bosch sensor that measures pressure and temperature. It is similar to the BME280 but does not measure humidity and is cheaper; it communicates over I2C (0x76/0x77) or SPI.
What is the difference between the BMP280 and the BME280?+
The BMP280 does not measure humidity (only pressure + temperature); the BME280 also measures humidity. If you don't need humidity, the BMP280 is the cheaper choice.
Does the BMP280 measure altitude?+
Altitude can be computed from barometric pressure (with a sea-level reference); it is used this way in drone/altimeter projects.
What is a BMP280 equivalent?+
The BME280 if you also want humidity; the older BMP180; the MS5611 for high precision.