Adafruit BMP280 I2C or SPI Barometric Pressure & Altitude Sensor

by Adafruit

Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI!

This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with  ±1 meter accuracy.

The BMP280 is the next-generation of sensors from Bosch, and is the upgrade to the BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications, but can use either I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.

Nice sensor right? So Adafruit made it easy for you to get right into your next project. The surface-mount sensor is soldered onto a custom made PCB in the STEMMA QT form factor, making them easy to interface with. The STEMMA QT connectors on either side are compatible with the SparkFun Qwiic I2C connectors. This allows you to make solderless connections between your development board and the BMP280 or to chain it with a wide range of other sensors and accessories using a compatible cable. They've broken out all the pins to standard headers and added a voltage regulator and level shifting so allow you to use it with either 3.3V or 5V systems such as the Metro M4 or Arduino Uno respectively.

They even wrote up a nice tutorial with wiring diagrams, schematics, libraries and examples to get you running in 10 minutes! Make sure to check the tutorial for example code for Arduino and CircuitPython, pinouts, assembly, wiring, downloads, and more!

TECHNICAL DETAILS

Datasheets, PCB CAD files, Fritzing object and more available in the product tutorial!

Revision History:

  • As of July 2, 2020 Adafruit have updated this sensor to be STEMMA QT compatible - that means there's now an easy way to plug-and-play this sensor without any soldering! The physical shape has changed but the pinout is identical to the non-QT earlier version.

Product Dimensions: 19.2mm x 17.9mm x 2.9mm / 0.8" x 0.7" x 0.1"

Product Weight: 1.3g / 0.0oz

3 customer reviews

5 years ago
I was recommended this website by a friends and honestly after purchasing the barometer and testing it out, I was amazed at how great the quality is and how perfectly it works without any issues, the delivery came 2 days earlier than expected which was absolutely wonderful... customer service has been amazing as I was guided well and was given great advice on the BMP280.... I tested the BMP out and it works perfectly fine without any flaws or issues... it's just perfect for my intended project, couldn't get better than this! Thank You! I will be recommending this product to all my friends and families and I will always purchase the product from here whenever need be....
by Muhammad about Adafruit BMP280 I2C or SPI Barometric Pressure & Altitude Sensor via REVIEWS.io