BME680 sensor Module

BME680 temperature, humidity and pressure high altitude sensor

BME680 by Bosh is an integrated environmental sensor developed specifically for mobile applications and wearable where size and low power consumption are key requirements. This module provides a simple interface to BME680 temperature/air pressure /humidity sensors/air quality sensor. Compared to the BME280 module the sensor does not support automatic mode which means that it can be setup to perform regular measurements. Every measurement has to be triggered manually.

In order to measure the air quality the sensor needs to be heated first. In the example provided by the manufacturer the sensor is heated to 300 degrees centigrade for a period of 200 ms and then the measurement is taken. These values are taken as default values in this implementation. I have not tested the impact of different temperatures and heating times on the measurement.

This module is able to measure the gas resistance. The gas resistance is not the IAQ (Indoor Air Quality) Index. But apparently it can be used as some proxy. The value still should somehow reflect the air quality. It seems that the higher value the air quality is better.

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Features of BME680 Sensor Module

• Bosch BME680 temperature, pressure, humidity, air quality sensor

• I2C interface, with address select via ADDR solder bridge (0x76 or 0x77)

• 3.3 Volt or 5 Volt compatible

• Reverse polarity protection

• Raspberry Pi-compatible pinout (pins 1, 3, 5, 7, 9)

• Compatible with Raspberry Pi 3B+, 3, 2, B+, A+, Zero, and Zero W

Related Links

• BME680 Sensor Datasheet

• BME680 Interfacing with Raspberry Pi

• BME680 Arduino Library

• BME680 ESP32 Interfacing Example