BME680 BSEC 1.4.7.2 installation problems on Arduino ESP8266 ( NodeMCU v2/Wemos mini pro)

Hi,

I have a couple of questions realted to BSEC 1.4.7.2 installation in Arduino ESP8266 (2.4.2 and 2.5.0):

1. Executed all the steps from Integration Guidelines for Arduino platforms.pdf. the library seems to be properly installed, the examples can be compiled without warnings and downloladed to the target platform. However, all the examples display the following error message after loading:

BSEC library version 1.4.7.1
BME680 error code : -2

- Any clue why the target displays version 1.4.7.1 instead of 1.4.7.2 which was downloaded and installed? 1.4.7.2 is the only library installed in my Arduino setup.

- Any idea why error code: -2 is reported for every example? The same HW setup works without any issues with Adafruit BME680 library.

2. Why are there two different versions of bsec_dataset.h and bsec_interface.h inclued in BSEC library distribution? Which version of these files should be installed in Arduino setup? The ones that come with the libalgobsec.a (from \BSEC_1.4.7.2_Generic_Release_20190122.zip\algo\bin\Normal_version\esp8266) or the ones from BSEC_1.4.7.2_Generic_Release_20190122.zip\Arduino\BSEC\src\inc?

3. Has anyone successfully run BSEC examples on NodeMCU/Wemos HW?

Regards

rbx

Best reply by rbx

Hi, I manage to resolve my problem. It was related to Wire object initialization - i.e. Wire.begin(I2C_PIN_SDA, I2C_PIN_SCL) was missing for I2C configuration. Once I added this to setup(), everything seems to be working fine.

Regards

rbx

6 replies

Resolved