No, what I mean is that the close to "400 ppm" doesn't hardly show any detail, just like it 'clips' at 400 ppm. This means the actual reported values are roughly 50-ish ppm too low on the S8. With the Sensair S8, the baseline shifts after several ABC cycles and can show values of 300-200p...

It looks like the ABC for the S8 is a bit off here. It doesn't appear to be S8 ABC because when the baseline shifts, it also shifts the outdoor air reading, as observed with two Sensair S8 sensors. In the provided example, the outdoor reading is 400 ppm, indicating that there is currently no S8 ABC...

Now it works stably. There is a question about accuracy. Why do the values of the S8 and SDC20 sensors begin to differ by 30-70 ppm indoors, even though both show 400 ppm outdoors? I compare "raw values" because the moving average looks unsuitable for use (green line)... http://joxi.net/Gr...

Can you turn that setting off and test for a couple of days, to see if that solves the issue? Done. Do these changes to the settings require a reboot or a cold reboot? http://joxi.ru/Dr8eBVEIDMkOpm.jpg And not unimportant, have you been running this device with an older release of ESPEasy, without ...

What value have you set the I2C Clock stretching to on the Tools/Advanced page? And you have selected Force Slow I2C Speed, as suggested in the documentation ? Everything seems to be according to the documentation, if I'm not mistaken. Screenshots are attached. https://i.ibb.co/McYmZKV/ESP-O2-SDC30...

Can anyone advise how to track what could be causing the SCD30 sensor to freeze? After a certain time (a few hours or a few days), the sensor falls off, and only a cold reboot helps. The web interface is available all the time, but after sensor freeze, it is constantly displayed as disabled, and doe...