SparkFun

SparkFun Environmental Sensor - BME688 (Qwiic)

Name: SparkFun Environmental Sensor - BME688 (Qwiic)
Brand: SparkFun
SKU: SF-SEN-19096
Price: 82.5 AUD
Availability: InStock

All Products Breakouts Gas & Air Quality Sensors Humidity Sensors New Arrivals Pressure & Altitude Sensors Sensors SparkFun Temperature Sensors Environmental (temperature, humidity, air quality) Sensors & Modules Sensors & Input Prototyping & Wiring SparkFun Qwiic Ecosystem

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The SparkFun BME688 Environmental Sensor is a breakout that combines a gas scanning sensor with temperature, humidity, and barometric pressure sensing for...

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The SparkFun BME688 Environmental Sensor is a breakout that combines a gas scanning sensor with temperature, humidity, and barometric pressure sensing for a complete environmental sensor in a single package. The gas sensor on the BME688 can detect a wide variety of volatile organic compounds (VOCs), volatile sulfur compounds (VSCs), and other gases such as carbon monoxide and hydrogen in the part per billion (ppb) range. Combine that with precise temperature, humidity, and barometric pressure and the BME688 can work as a completely standalone environmental sensor all in a 1in. x 1in. breakout!

The sensor communicates via either I2C or SPI. We've broken out the I2C pins to our Qwiic system so no soldering is required to connect it to the rest of your system but if you would prefer, both the I2C and SPI pins are also broken out to standard 0.1in.-spaced pins.

Note: While this sensor can be used with the BME AI-Studio and BSEC2 Arduino library; it is recommended for the AI functionality, users purchase the BME688 Evaluation Board (Coming Soon) for ease of use.

Important: In order to avoid contamination of its gas scanning capabilities, DO NOT touch the metallic casing of the BME688 sensor. Please, handle with care.

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.

Get Started With the SparkFun BME68x Environmental Sensor Guide

Features:

Uses I2C interface (Qwiic-enabled)
- I2C Addresses: 0x76 (Default) or 0x77
- 2x Qwiic Connectors
Operating voltage range
- 1.71V - 3.6V
- Typically 3.3V if using the Qwiic cable
Relative humidity
- Operating range: 0% to 100%
- Absolute Accuracy: ±3%RH
- Resolution: ±0.008%RH
Temperature
- Operating range: -40°C to +85 °C
- Absolute Accuracy: ±1.0°C
- Resolution: 0.01°C
Pressure
- Operating range: 300hPa - 1100hPa
- Absolute accuracy: ±60Pa (0°C to 65°C)
- Resolution: 0.18PA, highest oversampling
Gas
- F1 score for H₂S scanning: 0.92
- Standard scan speed: 10.8 sec/scan
- Sensor-to-sensor deviation: ± 15% ± 15
Typical current consumption (varies based on mode and active sensor)
- 2.1 µA to 18mA
- 0.15 µA (sleep mode)
- 3.9 mA in standard gas scan mode

Documents:

Schematic
Eagle Files
Hookup Guide
Datasheet (BME688)
BME AI-Studio Manual
BME680 Arduino Library
Bosch Software Page:
- BME AI-Studio (Mac/Windows) (Download from software page)
- BME68x Arduino Library
- BME68x API
- BSEC2 Arduino Library
- BSEC2 API (Download from software page)
  - BSEC2 Integration Guide
Qwiic Connect System
GitHub Hardware Repo
Board Dimensions

Videos

Jargon buster

Plain-language definitions for the technical terms used above.

API: An API (application programming interface) is a defined set of commands or functions that lets one piece of software interact with another, such as a library, operating system, hardware driver or online service. When something offers API support, it means you can control or query it from your own code rather than only through its built-in menus or buttons.
breakout: A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
I2C: I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
oversampling: Taking many measurements and combining them to reduce noise and improve the stability of a reading. It matters when you want smoother current or power measurements, though it can make updates slower.
PCB: A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
Qwiic: Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
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.