Aug 06, 2017· * [MH-Z19] Add 'ABC disable' option to web config As discussed in letscontrolit#466. The default setting is the current behavior. When changing the setting, it will be applied as soon as there is a stable reading. * [MH-Z19] Read settings first before determine must apply flag.
Jun 10, 2019· Some time ago I have purchased online carbon dioxide (CO2) sensor module ’s a cheap and very simple sensor with the UART interface allowing concentration measurement in the range up to 5000ppm.. The normal level of CO2 concentration is considered about 400-1000ppm.