Nuova O2 Sensor Reading

Other Hardware Sensors
1

Hello;

I want to read mV from Nuova E-15/5 O2 Sensor. But i cant read it with A0 pin. How can i do that ?

O2 Sensor Web Page

I am using below code inside UNO;

int analogPin = A0;                
int val = 0;                       
void setup()
{
Serial.begin(9600);               
}
void loop()
{
val = analogRead(analogPin);     
Serial.println(val);           
  delay(100);
}

Connection (I dont know is it right?)

2

I don't know this sensor but the spec says the output signal range is 8-12mV, so all possible values give you a reading of 1 or 2 on your Arduino so the resolution is unusable. You have to amplify the signal before you give it to the Arduino. As the company for the datasheet, the information on that web page is not satisfactory.
As you bought a sensor from them they should be able to provide you the necessary information to use it.

3

pylon:
I don't know this sensor but the spec says the output signal range is 8-12mV, so all possible values give you a reading of 1 or 2 on your Arduino so the resolution is unusable. You have to amplify the signal before you give it to the Arduino. As the company for the datasheet, the information on that web page is not satisfactory.
As you bought a sensor from them they should be able to provide you the necessary information to use it.

Then i can't read 8-12mV with my ardunio am i right ? How can i amplify signal ?

4

Then i can't read 8-12mV with my ardunio am i right ?

You can read it but the resolution is not enough for a serious application, so it simply doesn't make sense. You can amplify the signal with an op-amp (p.e. lm358).

I guess you next question will be the schematic you need for this. To be able to provide useful suggestions you have to provide the datasheet of the sensor. So ask the company for that and post it here.

What do you use that sensor for? It's a medical sensor but I hope you don't use it in a medical environment with connected to an Arduino.

5

pylon:
You can read it but the resolution is not enough for a serious application, so it simply doesn't make sense. You can amplify the signal with an op-amp (p.e. lm358).

I guess you next question will be the schematic you need for this. To be able to provide useful suggestions you have to provide the datasheet of the sensor. So ask the company for that and post it here.

What do you use that sensor for? It's a medical sensor but I hope you don't use it in a medical environment with connected to an Arduino.

Can i amplify the signal with this lm358 ? just connect and amplify ? I am sorry about my electronic knowlodge. I am newbie. Accualy i am software developer.

why you telling this - >What do you use that sensor for? It's a medical sensor but I hope you don't use it in a medical environment with connected to an Arduino.

thank you.

6

Can i amplify the signal with this lm358 ? just connect and amplify ? I am sorry about my electronic knowlodge. I am newbie. Accualy i am software developer.

As I already told you: post the manual/datasheet for that sensor if you need more help.

why you telling this - >What do you use that sensor for? It's a medical sensor but I hope you don't use it in a medical environment with connected to an Arduino.

In medical environments hardware is often responsible for the decision about life and death. An Arduino is not built to be reliable enough for such decisions. In my area you will never get the necessary certifications to use an Arduino in medical environments.