Drivers for BME680

RE: Drivers for BME680

Ulf Hedblom — Fri, 03 Jan 2020 07:40:45 GMT

What kind of readings do you get for humidity and pressure? Are they just absurd values? I have used the nRF52 aswell as the nRF91 with the BME680 sensor and if I manage to get it to work I always got what seemed to be correct values for temperature, pressure and humidity and if I didn't get it to work I ended up with calculations from a 'zero-value' which out of reasonable range.

RE: Drivers for BME680

vinay_kumar — Tue, 24 Dec 2019 09:47:35 GMT

Hello Heidi

I followed same(above) code for nRF52840, but on my DK with BME680 temperature is working fine, but humidity, pressure and gas are not working, every time same readings are observed, actually those are wrong values. From sensor raw data is changing every time, my calibration and calculation formulas also right, but I am not getting correct reading for humidity, pressure and gas. What I should do, can you please help me?

RE: Drivers for BME680

Ulf Hedblom — Thu, 12 Sep 2019 06:55:33 GMT

I had some issues with old ubuntu versions when I did this so you might be right.

Thank you for the answer and information on how to obtain the master branch, I should be able to fix this but right now I have to work on some unrelated UART-code.

Thank you again Heidi.

RE: Drivers for BME680

Heidi — Wed, 11 Sep 2019 13:26:17 GMT

It sounds like you just copied the contents of the git repo without cloning it?

Delete the directory and use 'git clone https://github.com/NordicPlayground/fw-nrfconnect-nrf.git' to create the git repository on your computer.

RE: Drivers for BME680

Ulf Hedblom — Wed, 11 Sep 2019 13:21:15 GMT

I'm on ubuntu and have git installed. I navigate to '~/sourcecode_root/ncs' and then attempts the 'git checkout master' which result in a 'fatal: not a git repository (or any of the parent directories): ,git'

Have I done something strange when I set this up? Should I try to recreate the entire thing?

RE: Drivers for BME680

Heidi — Wed, 11 Sep 2019 13:05:20 GMT

Hi!

Open a terminal (Command Prompt in Windows) on your computer and navigate to the ncs folder. If you have git installed, just run "git checkout master" and you are on the master branch. If not you can install that here.

RE: Drivers for BME680

Ulf Hedblom — Wed, 11 Sep 2019 12:33:06 GMT

Hi Heidi

This sounds excellent.

I will however need some more information on how to get the master branch downloaded. I have the toolchain and zephyr set up according to the instructions on how to get SEGGER Embedded Studio to work and I've been using to west command for updates the updates. But it seems like I'm unable to get anything to work using that.

Best regards,

Ulf

RE: Drivers for BME680

Heidi — Wed, 11 Sep 2019 10:56:34 GMT

Hi!

The driver for the BME680 sensor was just added to the master branch two weeks ago. So if you run 'git checkout master' it can be found in \ncs\zephyr\drivers\sensor\bme680. You can find it here as well.

Best regards,

Heidi