RE: Nicla Surprise

Idsnif — Fri, 24 Jun 2022 19:53:24 GMT

Please forgive me as this is probably not the place to post a question.

First we are able to read all of the sensors on the Nicla Sense ME over USB on a Mac running Arduino IDE and to report data using Serial Monitor. If I can be of help let me know.

Question: We are interested in using the BME AI Studio on the Mac to train the BME688 on the Sense ME, however only pull down choice is the BME 688 DEV-KIT BME688 Development kit. How can I get to the 688 on the Sense ME?

RE: Nicla Surprise

javagoza — Wed, 06 Apr 2022 08:47:29 GMT

During Enrico's workshop I asked him about the structure of the frames sent by the Arduino library and he directed me to the github code. In the code I saw those indications.

Since I wanted to make the connection by BLE from an Arduino nano 33 BLE that is not supported by that library, I needed to understand the frames well.

nicla-sense-me-fw/SensorBSEC.h at main · arduino/nicla-sense-me-fw (github.com)

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:4bdb55f3-5f08-491b-adaa-2856bf97b297:type=c_cpp&text=%2F%2A%0D%0ABSEC%20sensor%20frames%20are%3A%0D%0A-%2018%20bytes%20for%20BSEC%20new%20format%20%28SID%3D115%20SENSOR_ID_BSEC_LEGACY%29%0D%0A-%2029%20bytes%20for%20legacy%20format%20%28SID%3D171%20SENSOR_ID_BSEC%29%0D%0AIf%20the%20default%20size%20of%20SENSOR_DATA_FIXED_LENGTH%20is%20used%20%2810%20bytes%29%2C%20some%20fields%20of%20BSEC%20might%20always%20be%200.%0D%0AEnlarge%20SENSOR_DATA_FIXED_LENGTH%20to%20see%20all%20the%20fields%20of%20the%20BSEC%20sensor.%0D%0AFor%20the%20new%20format%20%28SID%3D115%29%2C%20if%20the%20compensated%20values%20%28comp_t%2C%20comp_h%2C%20comp_g%29%20are%20not%20important%2C%0D%0Akeep%20SENSOR_DATA_FIXED_LENGTH%20to%20the%20default%20value%20%2810%29%20to%20save%20bandwidth.%0D%0A%2A%2F]

And the parser that already tells you the full movie.

nicla-sense-me-fw/DataParser.cpp at main · arduino/nicla-sense-me-fw (github.com)

There is a lot of very interesting information about the sensor on the Bosch website

BME688 Software | Bosch Sensortec (bosch-sensortec.com)