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About Bernd1
since
01-04-2020
05-24-2020
Bernd1
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05-24-2020
07:20 PM
I moved the sensor out of its protective housing to see how the housing impacts the measurements. The measurements look better now, but the sensor is often calibrating. I'l wait until BSEC stabilizes and will then upload the data.
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05-20-2020
08:07 AM
I noticed that the accuracy was 2 this morning (and then changed to 3 while watching). I will log the accuracy and come back with the results. How about dogs? Can you make a statements how dogs impact the BSEC algorithms?
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05-19-2020
07:54 PM
The accuracy level is 3. I do not log it so I can not be 100% sure but all the time I check manually it is 3. I did not check it at night. It was 2 and switching between 2 and 3 for several days, but when I check now sporadically (during the day) it is 3 now for weeks. Just to be sure: I am using sIAQ and not IAQ.
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05-18-2020
04:22 PM
I am running a bme680 BSEC 1.4.7.4 with the 28d days configuration in a ventilated sleeping room, in parallel there is an IR-CO2 meter. The devices now run for several weeks. Looking in the logs I see this pattern: During the night the CO2 level measured by the IR sensors raise as expected (up to around 1.2K-1.5K) At the same time the resistance of the BME680 increases, which means the air gets better, there sIAQ and CO2e decrease during that time. If, in the morning, the door is opened, the (slow) IR-sensors value decreases a bit and the CO2e raised fast the about the IR-measured value. Too me this looks like the slow increase over night gets filtered somehow by BSEC?
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02-08-2020
10:02 AM
I nearly missed you answer. I was expecting the forum to send a mail if someone replies but I did not get a notification mail. Meanwhile I found that current BSEC library on github has an example for 2 devices on a single I2C bus. With the information from here: https://forum.arduino.cc/index.php?topic=630059.0 (Post #3) I finally managed to run the multi example on an arduino mega. Haven't looked at the example in detail yet, is it handling the states of the sensors to a single BSEC instance? (Found the checkbox to send email of someone replies)
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