Calibrating Analog Infrared CO2 Sensor without AnalogReference(DEFAULT) function
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I am using the Analog Infrared CO2 Sensor with a NodeMCU via the Arduino IDE. The Node MCU doesn't support the AnalogReference function. So how should I calibrate the readings that I'm getting from the sensor?
This post describes sending a zero calibration command but I'm not sure how to do that.
This post describes sending a zero calibration command but I'm not sure how to do that.