Si7021 now supported as an environmental sensor

A project log for

Raising awareness about air pollution one city block at a time.

Jan SzumiecJan Szumiec 05/07/2018 at 20:400 Comments

I've added support for another inexpensive environmental sensor - the Si7021. It is pin-compatible with the HTU21, so you can use both interchangeably. The software will automatically detect and report which sensor is attached upon startup.