BME680 sensor setup using I2C

Last updated
Save as PDF

Page ID: 39755

\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

BME680 is a digital sensor that measures temperature, gas, humidity, pressure, and altitude. It uses the I2C interface on the RPi.

https://learn.adafruit.com/adafruit-bme680-humidity-temperature-barometic-pressure-voc-gas/pinouts

First enable I2C.

https://learn.adafruit.com/adafruit-bme680-humidity-temperature-barometic-pressure-voc-gas/python-circuitpython

The BME680 requires a burn-in period to collect accurate readings.

The burn-in information was found here;

https://www.parallax.com/sites/default/files/downloads/28061-BME680-Sensor-Guide-v1.1.pdf

The following graph represents the gas reading while the sensor is undergoing burn-in. Data was collected for all sensors every 5 seconds for twenty minutes.

Only the raw gas values are shown here;

The graph above represents the first burn-in data for the BME680 in a clean jar.

Data for a second burn-in was also collected.