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WifWaf / MH-Z19

For Arduino Boards (&ESP32). Additional Examples/Commands., Hardware/Software Serial
GNU Lesser General Public License v3.0
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RAW measurement #30

Closed quintendewilde closed 3 years ago

quintendewilde commented 3 years ago

Hi,

I'm I correct to assume that even if my sensors range is between 410 - 2000.

That the raw measurement that goes above 20000 is also correct? (The ppm count in the raw example)

Or is this gibberish data?

WifWaf commented 3 years ago

It's not gibberish exactly, however, I have no idea whether it works on other sensors, and *it's not particularly accurate.

It was based on one of my sensors at room temperature, but only up to 3500 ppm; it's mostly to indicate that exponential equations work best if it's something you want to do.

The raw value is before any calculations so, your sensor's range does not matter, however, it is affected by temperature etc.

The getCO2 command would still be the best way to get higher ppm readings.