Co2 Sensor

EEnano

@eenano-iEGVXy • Oct 26, 2024

Oct 26, 2024

2.0K

hi everyone

i'm working on a project about Co2 sensor but one of the problem i'm running into is finding a 3.3v sensor that have specification of :0ppm-10000ppm, operating temperature of: -25- +25. i found one before before but the operating voltage was 5v. does anyone out there have some knowledge in this?

Thanks
EEnano

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Rupam Das

@rupam-das-wW5CvN • Oct 6, 2012

EEnanohi everyone

i'm working on a project about Co2 sensor but one of the problem i'm running into is finding a 3.3v sensor that have specification of :0ppm-10000ppm, operating temperature of: -25- +25. i found one before before but the operating voltage was 5v. does anyone out there have some knowledge in this?

Thanks
EEnano
[Sensor op Vin]
|
R1
|
|___________[3.3 v range Vout]
|
|
R2
|
|
GND

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Rupam Das

@rupam-das-wW5CvN • Oct 6, 2012

If you are in final year, I will assume you know the formula for Calculating R1 and R2 of a voltage divider circuit.

Vout=Vin*R2/(R1+R2);

470, and a potentiometer will do.

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Ramani Aswath

@ramani-VR4O43 • Oct 6, 2012

EEnanofinding a 3.3v sensor that have specification of :0ppm-10000ppm, operating temperature of: -25- +25.
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