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Measure Temperature with a Sensor Made for Embedded Builds
The Adafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT is an environmental sensor with i2c designed for air-quality projects, leak alerts, and ventilation monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Interface: I2C or SPI; Humidity accuracy: ±3%.
Important: Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.
Why you’ll love it
- Great: Great for altitude estimates (pressure-based)
- Key feature: Weather station (temperature/humidity/pressure logging)
- Useful spec: Bosch BME680
- Easy wiring: I2C or SPI
- Expected accuracy: ±3%
- Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
Compare with similar products
| Product | Sensor style | Standout |
|---|---|---|
| Adafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT | environmental sensor with I2C | Current item |
| Adafruit ENS160 MOX Gas Sensor - Sciosense CCS811 Upgrade - STEMMA QT / Qwiic | gas sensor with I2C | STEMMA QT connector, Qwiic connector |
| Adafruit SGP40 Air Quality Sensor Breakout - VOC Index - STEMMA QT / Qwiic | gas sensor with I2C | STEMMA QT connector, Qwiic connector |
| Adafruit MiCS5524 CO, Alcohol and VOC Gas Sensor Breakout | gas sensor | gas detection, breakout-board format |
What you can build
This sensor is a good fit for gas leak alarms, indoor air monitors, safety demos, ventilation control, and science projects.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus an I2C cable or jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include fresh-air test setup, an enclosure with vents, and a display for local readout, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | Adafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT |
|---|---|
| Sensor | Bosch BME680 |
| Best practice | allow warm-up time for stable VOC trend readings |
| Interface | I2C or SPI |
| Humidity accuracy | ±3% |
| Pressure accuracy | ±1 hPa absolute |
| Temperature accuracy | ±1.0°C |
| I2C | use SDA/SCL + power and ground (fastest setup with STEMMA QT) |
| SPI | use SCK/MOSI/MISO/CS when you prefer SPI wiring |
Wiring & usage notes
Connect VCC, GND, SDA, and SCL to your controller. Use the correct board voltage and I2C address in your code. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.
What’s in the box
1 × Adafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT
Frequently Asked Questions
What does the Adafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT measure?
It is designed to measure temperature and humidity.
Can I use it with Arduino, ESP32, or Raspberry Pi?
Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this I2C sensor?
This version uses I2C, so you usually connect VCC, GND, SDA, and SCL.
Does it need calibration?
Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.
Is it good for prototyping?
Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
Compatibility & downloads
// downloads
- Bme680 pdf
- GitHub PCB repo git
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