Version 3.1

Added CO2 offset function in configuraion

Version 3.0

Adding configurable autoCalibration of MHZ19

Update configuration.json

Update README.md

Version 2.8

- Added separators in config & dashboard

Version 2.7

- Added BME280 sensor support
- Added piezo tone frequency configurable via slider
- Removed while in setup routine (deadlock)

Version 2.6

Version 2.6

Version 2.3

Update Version 2.3

Version 2.2

Update Version 2.2
Bugfix breaking Wifi by Neopixel lib.

Version 2.1

Bugfix MQTTclient.loop