Greetings! I need help for wiring and how to code MHZ19B co2 sensors

Projects General Guidance
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I'm a beginner when it comes to this stuff

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What have you tried and what precisely didn't work as intended?

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I haven't started yet tobe honest

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But do you have a plan?

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yeah i have to solder 4 pins Vin, GND , Tx and Rx according to the sources that i fond

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Ok, when you've figured out how the forum works, get back to us.

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What did Dr. Google say when you searched for "MHZ19B Arduino"?

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And read the forum guidelines How to get the best out of this forum before you post anything else. Be more careful where you post please.

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Ok, so get started and if you run into trouble, read what @PerryBebbington linked you to and ask your questions.
Good luck with your project.

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