Switchin Sensor Calibration Fields

[elitortu]

I have been successfully using this library for the sensor LG16- 0150D.
Referring to the datasheet I realised it is calibrated with both water and isopropanol (IPA), but to get such data the calibration field needs to be changed from CF0 to CF1.
" this has to be changed using the Sensirion Viewer Software or using digital commands via the I2C or RS485 interface" according to the datasheet, but I can't seem to figure out how. I am wondering if this has been explored somewhere you can refer or know if it's actually possible (using Arduino).
Thanks!

[winkj]

Great timing. We just recently published some more arduino sample code:
https://github.com/Sensirion/arduino-liquid-flow-snippets/

There's one which is covering the calibration fields:
https://github.com/Sensirion/arduino-liquid-flow-snippets/blob/master/example_10_calibration_field/example_10_calibration_field.ino

Changing lines 108 & 109 to send CF1 should give you the isopropanol calibration.

[elitortu]

That is great, thank you!
I can see that the sensor is initialised differently, as I was using flow.init(); and flow.readSample(); from the sensirionflow.h library.
Is it possible to still use these and combine with the new coding or would I be better off just replacing/redoing everything? I initially tried to use the sensor with regular I2C commands but couldn't make it work until I found this thread. But I'll se what I can do.
Thanks again for pointing in the right direction.

NEWS: So I used the code to read from CF1, and then the original code with flow.init(); and flow.readSample();. It turns out it's now reading correctly for IPA up to 100uL/min.
So great news is I can still use my old code after running this one.