[Phil23]

I would bet you are trying to run the code without having the BME280 installed.

Thanks Werk,

100% correct & patched at the moment by fudging the missing Humidity to 50%.

Next step will be to begin reading the CCS811/HDC1080 Voc sensor sitting on my desk.

   

Seems to be plenty of examples of basic sketches to read the 811, will need to search a few to do the HDC1080 as well.

Hoping that's easy to integrate into the main code on a Copy/Paste/Edit basis of existing code blocks.

If all goes good & I get the desired result I plan to purchase another board to build an in indoor hybrid that also monitors Voc's.

Cheers

Phil.

(Expect many questions as my ESP/C+ skills are very limited).