Adafruit BME688 - Temperature, humidity, pressure and gas sensor

Name: Adafruit BME688 - Temperature, humidity, pressure and gas sensor
Brand: Adafruit
SKU: ADA5046
Price: 24.9 EUR
Availability: LimitedAvailability
Rating: 5.0 (1 reviews)

Product number: ADA5046

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Adafruit BME688 - Temperature, humidity, pressure and gas sensor

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Product information "Adafruit BME688 - Temperature, humidity, pressure and gas sensor"

Adafruit BME688 - Temperature, humidity, pressure and gas sensor
The long-awaited BME688 from Bosch offers all the environmental sensor functions you could want in a small package. This sensor measures temperature, humidity, barometric pressure and VOC gas. All via SPI or I2C at a great price! The BME688 is a direct replacement for the BME680 - it adds a method of programming the gas sensor heater for controlled odour analysis, but is otherwise the same hardware. Learn more about the machine learning system for odour detection in this EYE ON NPI. Like the BME280 & BMP280, this precise sensor from Bosch can measure humidity with ±3% accuracy, barometric pressure with ±1 hPa accuracy and temperature with ±1.0°C accuracy.

Because the pressure changes with altitude and the pressure measurements are so good, it can also be used as an altimeter with an accuracy of ±1 metre or better! The BME688 goes one step further as it contains a small MOX sensor. The heated metal oxide sensor changes its resistance based on the volatile organic compounds (VOC) in the air and can be used to detect gases and alcohols such as ethanol, alcohol and carbon monoxide as well as measure air quality. Note that it provides a resistance value with the total VOC content, but cannot distinguish gases or alcohols.

Please note that this sensor, like all VOC/gas sensors, is subject to fluctuations. For precise measurements, you should calibrate it against known sources! However, for general environmental sensors it gives a good idea of trends and comparisons. We recommend running the sensor in the desired mode for 48 hours on receipt to "burn it in" and then running it in the desired mode for 30 minutes each time the sensor is used. This is because the sensitivity levels of the sensor will change during initial use and the resistance will slowly increase over time as the MOX warms up to its output measurement.

For your convenience, we have placed the sensor on a PCB with a 3.3V regulator and some level conversion so that it can be easily used with your favourite 3.3V or 5V microcontroller. All pins of the BME688 are available on standard 0.100" / 2.54mm pitch headers for use with a breadboard. If you want to avoid soldering, we have now also added our Stemma QT connectors(compatible with SparkFun Qwiic). With these handy connectors you can simply plug in the sensor, no soldering required! QT cable is not included.

Features at a glance

Measures temperature, humidity, barometric pressure and VOC gas
±3% accuracy for humidity, ±1 hPa for pressure, ±1.0°C for temperature
Can be used as an altimeter with ±1 metre accuracy
Includes a small MOX sensor for detecting gases and alcohols

Technical specifications

Product dimensions: 25.5mm x 17.6mm x 4.6mm
Product weight: 1.7g

Other data

QT cable not included

Scope of delivery

1x fully assembled and tested BME688 sensor on a printed circuit board

Link to

Zolltarifnummer:	90258040
Brand:	Adafruit
Country of Origin:	USA
EAN:	4060137070211
Gross Weight (kg):	0.003
Manufacturer ID:	5046
Product ID:	ADA5046

Adafruit

Adafruit: The expert for open source hardware

For more than ten years, programmers and tinkerers have benefited from the expertise of the Adafruit brand. Whether for beginners or proven experts, Adafruit has the right hardware components ready for your next IoT project.

Light comes into the dark with Adafruit NeoPixel

One extremely popular product line from the company's broad portfolio is Adafruit NeoPixel. These nifty LED components come in a wide variety of designs and color temperatures. NeoPixel modules are available, for example, in the form of a practical stick with five intelligent LEDs in red, green and blue (RGB) or in white (W), as a shield with 40 eye-saving RGBW LEDs in which all pixels are individually addressable, and as a jewel with seven RGBW LEDs that can be controlled with 8-bit PWM per channel.

Especially popular is the Adafruit NeoPixel Ring with 16 ultra-bright, intelligent RGB LEDs including integrated drivers, which you only need a single microcontroller to control. The trick is that the Adafruit NeoPixel rings form a chain, so to speak: You couple the output pin of one with the input pin of the other.

With the Adafruit NeoPixel products you can realize a wide variety of projects - there are virtually no limits to your creativity. With the help of an Arduino, a jumper cable and the appropriate software, you can control a NeoPixel ring individually and light up the small LEDs as you wish - either individually or in a specific combination. This way, you can also create your own Vu meter with the versatile LED components. Practical: To make programming Adafruit NeoPixel easier, Adafruit provides an Arduino library as well as a Python library.

Adafruit Feather Boards: Powerful hardware in a compact format

With Adafruit Feather, the hardware specialist from the States also has various powerful development boards in its range, which are essentially equivalent to an Arduino in terms of function. All of these boards are equipped with similar features; among other things, the pin assignment is the same and there are also many parallels when it comes to the microcontrollers and the battery charging properties. In addition, you can also find Feather boards with special devices like Bluetooth, Wi-Fi and cellular network connectivity as well as boards with microSD slot in Adafruit's product range. The name "Feather" is no coincidence: The boards are also characterized by being particularly compact and, above all, lightweight.

The range of top-class product highlights is wide: The STM32F405 Feather, for example, is the fastest CircuitPython board from Adafruit with an outstanding 168 MHz and meets the highest demands. It is equipped with a STEMMA QT / Qwiic port at the end, which makes it easy to connect to I2C sensors. The Adafruit Feather nRF52840 Express, on the other hand, shines with Bluetooth Low Energy and can also be used with CircuitPython thanks to native USB support.

Another important part of Adafruit's portfolio are the FeatherWings. With these expansion modules, you can also include components such as a display or a motor driver in your IoT project. The FeatherWing Proto is a proven classic in Adafruit's portfolio. This is ideally suited as a prototyping add-on for all Feather boards. The Adafruit FeatherWing Wing Tripler Mini Kit, on the other hand, is ideal if you want to connect a Feather to two other FeatherWings at the same time.

With the Adafruit MIDI FeatherWing Kit you get a music capable FeatherWing, thanks to which you can equip your Feather with MIDI input and output jacks. And with the Adafruit FeatherWing OLED you can easily add a small OLED display to your Feather board - no soldering required.

Adafruit: What's behind the brand

As an expert in open-source hardware, Adafruit has long since established itself in the electronics industry. The company was founded in 2005 by Limor Fried. At the time, the talented and innovative electrical engineer was still a student at the renowned Massachusetts Institute of Technology (MIT). To this day, Fried is CEO of the electronics giant, which is now headquartered in New York. The company's name also goes back to its founder: Fried was once known on the World Wide Web by the nickname "Ladyada" - a tribute to the famous IT pioneer Ada Lovelace.

Adafruit says it is committed to getting more people excited about technology and science - and thanks to its first-class products, the hardware expert from the USA is sure to succeed!

Manufacturer information
Adafruit Industries, LLC
168 39th Street 1905CC
US 11232 Brooklyn, New York
https://www.adafruit.com
[email protected]

WEEE number: 20453810

Person responsible for the EU
Sertronics GmbH
Am Studio 20d
DE 12489 Berlin
https://www.berrybase.de
[email protected]

Safety instructions

Use product only in well ventilated areas.
Avoid direct contact with water or humid environments.
Read and follow the operating instructions carefully before use.
Use the sensor away from flammable or explosive materials.
Ensure connection to a suitable power source in accordance with the specifications.
In the event of damage or malfunctions, disconnect from the power supply immediately.
Protect from heat sources and direct sunlight.
Dispose of in accordance with local regulations for electronic devices and hazardous substances.
Never touch gas or dust sensors directly with bare hands.
Do not use for applications in safety-critical systems without additional protective mechanisms.