Guru
Joined: 05/02/2015
Location: AustraliaPosts: 669
| Posted: 12:32am 15 Sep 2019 |
Good morning Lew.
I just read your post correctly this time.
The actual problem is with the MM not the BME280, correct?
It is reading 2-3 degrees higher than true.
If that is the case then:
1. check code
2. check soldered joins & mechanical connections
3. prayer
Peter