SparkFun
SparkFun Atmospheric Sensor Breakout - BME280
The SparkFun BME280 Atmospheric Sensor Breakout measures barometric pressure, humidity, and temperature in a compact package. Whether you're building a weath...
The SparkFun BME280 Atmospheric Sensor Breakout measures barometric pressure, humidity, and temperature in a compact package. Whether you're building a weather station, home automation system, or indoor air quality monitor, this sensor covers all the key atmospheric conditions.
The breakout provides both a 3.3 V SPI interface and a 5 V tolerant I²C interface (with pull-up resistors to 3.3 V). It draws less than 1 mA during measurements and idles at less than 5 µA, making it well suited for battery-powered projects.
Key Features
- Three-in-One Sensor – Pressure, humidity, and temperature from a single IC
- Pressure Range – 30 kPa to 110 kPa (relative accuracy ±12 Pa, absolute ±100 Pa)
- Humidity Range – 0–100% RH (±3% accuracy between 20–80% RH)
- Temperature Range – −40 °C to +85 °C
- Altitude Accuracy – ±1 m relative at sea level
- Dual Interface – I²C (5 V tolerant) and SPI (3.3 V)
- Ultra-Low Power – Less than 1 mA active, less than 5 µA idle
Ideal For
- Weather stations and environmental monitoring
- Indoor/outdoor navigation and altitude sensing
- Home automation and HVAC systems
- Personal health and wellness tracking
Package Contents
- 1× SparkFun BME280 Atmospheric Sensor Breakout
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- Headers
- Rows of metal pins used to plug a module into a breadboard or connect it with jumper wires. Pre-soldered headers make the module easier to use straight away without needing to solder the pins yourself.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
Find this product in
SparkFun BME280 Breakout Schematic
Schematic · 59.4 KB · Click any page to view full size
BME280 Sensor Datasheet
Datasheet · 1.8 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 767.9 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
