Electronic Components

BME688 Environmental Sensor

Name: BME688 Environmental Sensor
SKU: ZB329523750
Availability: InStock

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SKU:

ZB329523750

Category: Electronic Components

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Description

TheBME688is the first gas sensor with Artificial Intelligence (AI) and integrated high-linearity and high-accuracy pressure, humidity and temperature sensors.

The gas sensor can detect volatile organic compounds (VOCs), volatile sulfur compounds (VSCs) and other gases such as carbon monoxide and hydrogen in the part per billion (ppb) range.

Some possible uses for this include:

Personal air quality tracker
Air quality mapping
Air quality inside cars & public transport
Enhanced context awareness
Accurate step & calorie tracker
Quick GPS fix & improved navigation
Indicator of too high/low humidity
Air quality & well-being indicator

The BME688 also has a gas scanner function. In standard configuration, the presence of VSCs is being detected as an indicator for e.g. bacteria growth. And the gas scanner can be customized with respect to sensitivity, selectivity, data rate and power consumption as well.

With its I2C support and SPI communication, that enables you to use a multitude of controller boards, including Raspberry Pi/Raspberry Pi Pico/ESP32 and Arduino, this sensor is a no-brainer for your next project!

Features

Onboard BME68X sensor to measure temperature, humidity, barometric pressure, and gas
I2C communication, I2C address configurable, with I2C bus cascading support
SPI communication, enabled via CS pin (I2C bus by default)
Onboard voltage translator, compatible with 3.3V/5V level
Comes with online development resources and manual (examples for Raspberry Pi / Raspberry Pi Pico / Arduino / ESP32)

Specifications

Functions	Suitable for detecting various additional gases (such as VSC, carbon monoxide, hydrogen, etc.) Multiple gas discrimination Artificial intelligence (requires secondary development by the user)
Communication Interface	I2C and SPI
Temperature Measuring Range	-40~85C
Temperature Measuring Accuracy	0.5 (0~65)
Humidity Measuring Range	0~100% r.H.
Humidity Measuring Accuracy	3% r.H.
Barometric Pressure Measurement Range	300~1100 hPa
Barometric Pressure Measurement Accuracy	0.6hPa (0~65)
IAQ Measuring Range	0~500 IAQ
(The sensor outputs changes in resistance due to VOC gas, and the Bosch BSEC library is required to output IAQ.)
Dimensions	27mm 20mm

Resources

Product Wiki
BME688 Datasheet

Pinout

PIN	I2C	SPI
CS	NC	SPI chip selection, low active
ADDR/MISO	I2C address chip selection	SPI data master input/slave output
	High level (default) address: 0x77
	Shorting onboard ADDR pad, the address is 0x76
SCL/SCK	I2C clock	SPI clock input
SDA/MOSI	I2C data	SPI data master output/slave input
GND	Ground
VCC	3.3V/5V power supply