ESP32: environmental sensing with the BME680
The BME680 reads temperature, humidity, pressure, AND volatile organic compounds (VOC) from air quality, over one I2C bus.
Tag
#gas
2 tutorials
ESP32: read an MQ-2 gas sensor (the honest reading)
Wire an MQ-2 gas sensor to an ESP32 and read combustible gas concentrations. Important caveats about what MQ sensors can and cannot tell you.