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feat: add MH-Z19 sensor module
This adds support for NDIR CO2 sensor MH-Z19. The sensor module supports reading CO2 ppm value and configuring the ppm range over the UART/serial interface.
References:
- https://www.winsen-sensor.com/d/files/manual/mh-z19c.pdf?searchid=4795
- https://revspace.nl/MHZ19
Hi @kleest, a demo configuration would be nice to have. Can you provide one, please? Then I will merge it!