BME280 accuracy using Micromite


Author Message
robert.rozee
Guru

Joined: 31/12/2012
Location: New Zealand
Posts: 2541
Posted: 12:54am 15 Sep 2019      

might i suggest the following test:

place a BMP280, a DS18B20, and a SHT31 - all wired up to a remove micromite - into a small polystyrene box, along with something to act as a thermal mass. sand would to. leave for half a day and check the temperature reading produced by each.

you'll find that different constructions of sensor may behave differently in free air. things like exposed metal surfaces (BMP280), a plastic shell (SHT31), and a thermall small mass (DS18B20) will effect how small movements of air impact the reading.


cheers,
rob   :-)