The SparkFun BME280 Atmospheric Sensor Breakout is an easy way to measure barometric pressure, humidity, and temperature readings, all without taking up too much space. Basically, you can find out anything you need to know about atmospheric conditions from this tiny breakout. The BME280 Breakout has been designed to be used in indoor/outdoor navigation, weather forecasting, home automation, and even personal health and wellness monitoring. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.
The on-board BME280 sensor measures atmospheric pressure from 30kPa to 110kPa as well as relative humidity and temperature. The breakout provides a 3.3V SPI interface, a 5V tolerant I2C interface (with pull-up resistors to 3.3V), can be configured to take measurements with less than 1mA of current draw.
The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.
The BME280 Atmospheric Sensor Breakout can also be automatically detected, scanned, configured, and logged using the OpenLog Artemis datalogger system. No programming, soldering, or setup required!
If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.
Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
See all skill levels
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
See all skill levels
Based on 2 ratings:
Love the Qwiic connection. Works great!
The Sparkfun BME 280 module is excellent to work with and the Qwiic connection and interface cable makes it easy for the user. I use the module with the Parallax P1 controller and assembly driver I wrote for the sensor.
Looking for answers to technical questions?
We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.
Log in or register to post comments.
The Python code has a bug. All signed calibration values are treated as unsigned. I fixed mine with this function:
A similar function (int12) is needed for the 12-bit values H4 and H5 (but my values were all too low to be affected). I note that the Arduino package has the same problem with H4/H5.
Do these sensors need their own Sparkfun library to work properly? I am tying to use 2 of theses sensors with Mycodo to control VPD in a hydroponics greenhouse, but the air pressure and VPD readings from the sensors are extremely high. Mycodo only has the Adafruit and RPi.bme280--0.2.3 libraries available for the BME280 sensor. Air pressure is reading around 92130724.87 kPa when it should read about 100 kPa for my location and altitude. VPD is reading 1223193.407 kPa when it should be around 1.50 kPa for the temp and humidity I maintain in the greenhouse. Are these sensors not compatible with the Adafruit and RPi libraries?
Under Features it says "Temperature Range: 0°C-65°C (32°F-149°F)" but the BME280 Bosch datasheet says the temperature range is -45C to +85C. Is this an error? I noticed the non-Qwiic BME280 page says the temperature range is indeed the larger one. Later in the datasheet it says "full accuracy" in the narrower temperature range, but that doesn't bother me. But showing the narrower range in the features list made me worry it wouldn't work at all below zero. I think this is confusing.
I think I modified it to the full accuracy range because of feedback from another customer. However, you are correct, there is a wider operational range. I'll update the list with both ranges.