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DFRobot Gravity: Analog CO2 Gas Sensor for Arduino Features
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This is the first CO2 sensor in Arduino market
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The output voltage of the module falls as the concentration of the CO2 increases
About DFRobot Gravity: Analog CO2 Gas Sensor For Arduino
This is the first CO2 sensor in Arduino market. The output voltage of the module falls as the concentration of the CO2 increases. The potentiometer onboard is designed to set the threshold of voltage. As long as the CO2 concentration is high enough (voltage is lower than threshold), a digital signal (ON/OFF) will be released.
