Arduino drives MG-811 carbon dioxide sensor (gas sensor)

Table of contents

1. Sensor characteristics

2. Hardware schematic diagram

3. Controller and sensor wiring diagram

4. Driver

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Carbon dioxide is a colorless and odorless gas. It is one of the important components of the atmosphere. Excessive emission and high content of CO2 will have multiple effects such as the greenhouse effect, and will also endanger the health of humans, animals and plants.

Industrial-grade MG-811 CO2 probe is extremely sensitive to CO2 and can eliminate the interference of alcohol and CO