project for connecting CO2 sensor mzh19 to orangePI or similar boards via COM port

The project https://www.circuits.dk/testing-mh-z19-ndir-co2-sensor-module/ was taken as a basis, the script of which was brought to working form

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there are 3 scripts in the set

mhz19.py working script from the first example outputs data to console and also writes to CSV file.

mzh19MQ.py script transfers sensor data to the MQTT bus, for example, for data collection by a smart home

mhz19MQ_CSV.py transfers sensor data both to the MQTT bus and to a CSV file

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In all scripts it is necessary to specify the name of the port to which the sensor is connected.

port = '/dev/ttyS0'