Hello
So a quick/simple question: how do you calibrate your sensors to get a reliable measurement? Because if I put all my sensors on the same table I don’t get the same temperature or humidity.
I think that in MQTT I can change the value; I would need a reference, and that’s where I’d like your tips.
Thanks
Hi,
Personally, I’ve never calibrated them. Is the difference large between all your sensors?
Otherwise, indeed, the Z2M interface sometimes allows you to modify sensor values, but it’s very dependent on the models.
So it’s not huge, but let’s say my perfectionist side, when two sensors are side by side, likes to have the same values.
Depending on the model you can perform a calibration directly in Zigbee2MQTT
Below is an example with an Aqara temperature sensor
I had found that, but it’s to get the correct value to correct.
The value is for you to find; each sensor is different, I think, and then you add/remove an offset to the temperature reading of your sensor.
To determine the correct value, I would say you have two options: either you have another device that you consider reliable and use it as a reference, or you calculate the average of all your sensors and use that average as the reference.
So I’ll do the averaging method because there’s no sensor more reliable than that at home — let’s say that out of 10 sensors that should be pretty good
Honestly, given the differences, I wouldn’t bother calibrating everything.
my perfectionist side
but with humidity I have more variation, so I might as well do everything properly; it’s something you only have to do once, so no worries, and since for now I’m stuck on the pilot wire it keeps me occupied
I started explaining the pilot wire to you. I will continue tonight.
