shop/ communications/ bmp280 barometric pressure/altitude sensor i2c/spi

Measure Pressure with a Compact Sensor Module

The Barometric Pressure & Altitude Sensor BMP280 I2C or SPI is an environmental sensor with i2c designed for barometric logging, tank checks, and fluid system monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Interface: I2C.

Why you’ll love it

  • Easy wiring: I2C
  • Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
  • Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards
  • Project-ready sensing: barometric logging, tank monitoring, altitude projects, and fluid systems

Compare with similar products

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Barometric Pressure / Temperature MPL115A2 I2C Sensor environmental sensor with I2C I2C interface, pressure sensing

What you can build

This sensor is a good fit for altitude loggers, barometers, pump systems, tank pressure checks, and weather stations.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus an I2C cable or jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include tubing, adapters, and a display or logger, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product Barometric Pressure & Altitude Sensor BMP280 I2C or SPI
Product Dimensions 19.2mm x 17.9mm x 2.9mm / 0.8" x 0.7" x 0.1"
Product Weight 1.3g / 0.0oz
Interface I2C
Category pressure sensors

Wiring & usage notes

Connect VCC, GND, SDA, and SCL to your controller. Use the correct board voltage and I2C address in your code.

What’s in the box

1 × Barometric Pressure & Altitude Sensor BMP280 I2C or SPI

Frequently Asked Questions

What does the Barometric Pressure & Altitude Sensor BMP280 I2C or SPI measure? It is designed to measure pressure.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this I2C sensor? This version uses I2C, so you usually connect VCC, GND, SDA, and SCL.
What affects accuracy? Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

Compatibility & downloads

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Build with this board

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Notes from the bench

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Ask the community

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