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  • when I checked the voltage espruino return now I've got 0.88volt when start and sensor is warmed, and 0.72volt when I blow on it

    var co2 = analogRead(A5)*3.3;

    when used this code

    var co2=1-analogRead(pin);
    var ppm=400+co2*(10000-400)

    I've got readings at about 7400ppm, I fixed it but just for 400ppm level

    var co2 = 1 - analogRead(A5);
     var ppm = 400 + co2*(10000-400);

    can't get readings of about 10000ppm when voltage on the sensor is 0.72volt


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