Adafruit BMP280 Driver (Barometric Pressure Sensor) [](https://github.com/adafruit/AdafruitBMP280Library/actions)[](http://adafruit.github.io/AdafruitBMP280Library/html/index.html)
December 10, 2025 ยท View on GitHub
This driver is for the Adafruit BMP280 Breakout
About the BMP280
This precision sensor from Bosch is the best low-cost sensing solution for measuring barometric pressure and temperature. Because pressure changes with altitude you can also use it as an altimeter!
About this Driver
Adafruit invests time and resources providing this open source code. Please support Adafruit and open-source hardware by purchasing products from Adafruit!
Written by Kevin (KTOWN) Townsend for Adafruit Industries.
Compatibility
| MCU | Tested Works | Doesn't Work | Not Tested | Notes |
|---|---|---|---|---|
| Atmega328 @ 16MHz | X | |||
| Atmega328 @ 12MHz | X | |||
| Atmega32u4 @ 16MHz | X | Use SDA/SCL on pins D2 & D3 | ||
| Atmega32u4 @ 8MHz | X | Use SDA/SCL on pins D2 & D3 | ||
| ESP8266 | X | SDA/SCL default to pins 4 & 5 but any two pins can be assigned as SDA/SCL using Wire.begin(SDA,SCL) | ||
| Atmega2560 @ 16MHz | X | Use SDA/SCL on pins 20 & 21 | ||
| ATSAM3X8E | X | Use SDA/SCL on pins 20 & 21 | ||
| ATSAM21D | X | |||
| ATtiny85 @ 16MHz | X | |||
| ATtiny85 @ 8MHz | X | |||
| Intel Curie @ 32MHz | X | |||
| STM32F2 | X |
- ATmega328 @ 16MHz : Arduino UNO, Adafruit Pro Trinket 5V, Adafruit Metro 328, Adafruit Metro Mini
- ATmega328 @ 12MHz : Adafruit Pro Trinket 3V
- ATmega32u4 @ 16MHz : Arduino Leonardo, Arduino Micro, Arduino Yun, Teensy 2.0
- ATmega32u4 @ 8MHz : Adafruit Flora, Bluefruit Micro
- ESP8266 : Adafruit Huzzah
- ATmega2560 @ 16MHz : Arduino Mega
- ATSAM3X8E : Arduino Due
- ATSAM21D : Arduino Zero, M0 Pro
- ATtiny85 @ 16MHz : Adafruit Trinket 5V
- ATtiny85 @ 8MHz : Adafruit Gemma, Arduino Gemma, Adafruit Trinket 3V