Calc dewpoint from BME280

[krambriw]

@triphil

Is there another way of doing it?

I do not know a better way, I have not seen any node for that type of calculation but there are many flows and samples you may find on the net

I think I posted the code in here somewhere,,,how I do the calculation, I will have to search

Edit: I knew it, here it is

New bathroom ideas

You nailed it. This is the key point to keep track of. I have been monitoring this since years in certain areas in hour house (in the ground and in the attic) using sensors and related logic in Node-RED (earlier with EventGhost). I'm measuring the temperature & relative humidity, calculating the delta (difference from actual temperature to dew point). If delta goes negative there is a problem. Luckily we have never had any condensation so far, I have also verified this regularly with an instrum…

In this example I calculate the delta which is the interesting part, i.e. how many degrees you have left before condensation will happen