BME680是一种温度、湿度、气压、有机挥发性化合物的四合一数字环境检测传感器(VOC)。用于测量空气中的金属氧化物敏感元件VOCs，不同VOCs浓度下金属氧化物表面的电导率不一样从而输出不同的电阻值。这个传感器可以给周围的空气一个VOCs与特定的气体分子相比，污染物之和的定性概念。

IIC接线方式

Arduino IDE安装库管理器 Adafruit_BME680 library Arduino IDE安装库管理器Adafruit Unified Sensor 打开示例代码

/*************************************************************************** This is a library for the BME680 gas, humidity, temperature & pressure sensor Designed specifically to work with the Adafruit BME680 Breakout ----> http://www.adafruit.com/products/3660 These sensors use I2C or SPI to communicate, 2 or 4 pins are required to interface. Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit! Written by Limor Fried & Kevin Townsend for Adafruit Industries. BSD license, all text above must be included in any redistribution ***************************************************************************/  #include <Wire.h> #include <SPI.h> #include <Adafruit_Sensor.h> #include "Adafruit_BME680.h"  #define BME_SCK 13 #define BME_MISO 12 #define BME_MOSI 11 #define BME_CS 10  #define SEALEVELPRESSURE_HPA (1013.25)  Adafruit_BME680 bme; // I2C //Adafruit_BME680 bme(BME_CS); // hardware SPI //Adafruit_BME680 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK);  void setup() { 
           Serial.begin(9600);   while (!Serial);   Serial.println(F("BME680 async test")); if (!bme.begin()) { 
          Serial.println(F("Could not find a valid BME680 sensor, check wiring!")); while (1); } // Set up oversampling and filter initialization bme.setTemperatureOversampling(BME680_OS_8X); bme.setHumidityOversampling(BME680_OS_2X); bme.setPressureOversampling(BME680_OS_4X); bme.setIIRFilterSize(BME680_FILTER_SIZE_3); bme.setGasHeater(320, 150); // 320*C for 150 ms } void loop() { 
          // Tell BME680 to begin measurement. unsigned long endTime = bme.beginReading(); if (endTime == 0) { 
          Serial.println(F("Failed to begin reading :(")); return; } Serial.print(F("Reading started at ")); Serial.print(millis()); Serial.print(F(" and will finish at ")); Serial.println(endTime); Serial.println(F("You can do other work during BME680 measurement.")); delay(50); // This represents parallel work. // There's no need to delay() until millis() >= endTime: bme.endReading() // takes care of that. It's okay for parallel work to take longer than // BME680's measurement time. // Obtain measurement results from BME680. Note that this operation isn't // instantaneous even if milli() >= endTime due to I2C/SPI latency. if (!bme.endReading()) { 
          Serial.println(F("Failed to complete reading :(")); return; } Serial.print(F("Reading completed at ")); Serial.println(millis()); Serial.print(F("Temperature = ")); Serial.print(bme.temperature); Serial.println(F(" *C")); Serial.print(F("Pressure = ")); Serial.print(bme.pressure / 100.0); Serial.println(F(" hPa")); Serial.print(F("Humidity = ")); Serial.print(bme.humidity); Serial.println(F(" %")); Serial.print(F("Gas = ")); Serial.print(bme.gas_resistance / 1000.0); Serial.println(F(" KOhms")); Serial.print(F("Approx. Altitude = ")); Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA)); Serial.println(F(" m")); Serial.println(); delay(2000); } 

打开串口监视器显示出传感器测量的数据