Problems / no values displayed

Support forum for the Lambda Shield designed to connect Bosch LSU 4.9 wideband oxygen sensors to Arduino projects.
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ronny
Posts: 2
Joined: 22 Mar 2021 09:15

Problems / no values displayed

Post by ronny » 13 Apr 2021 11:04

Hello,

I use googel translator. Sorry for my English.
I have two questions / problems.


Question 1: (Image_1)
The two numbers on the display do not change.

The software is "Lambda-Shield-2-GUI-Example-master" with an Arduino MEGA.


Question 2: (Image_2)
I don't get any values displayed on the Windows app.

Software is "Lambda-Shield-2-Example-master" with an Arduino UNO.



Image_1
Image

Image_2
Image

thanks

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Christian_Bylund
Posts: 255
Joined: 07 Mar 2015 18:09

Re: Problems / no values displayed

Post by Christian_Bylund » 15 Apr 2021 19:39

ronny wrote:
13 Apr 2021 11:04
Hello,

I use googel translator. Sorry for my English.
I have two questions / problems.


Question 1: (Image_1)
The two numbers on the display do not change.

The software is "Lambda-Shield-2-GUI-Example-master" with an Arduino MEGA.


Question 2: (Image_2)
I don't get any values displayed on the Windows app.

Software is "Lambda-Shield-2-Example-master" with an Arduino UNO.
Hello Ronny,

Great you showed some pictures.

So let us start with Question 2, why does it not show you any number. It is because you are measuring air. As you can see it is displaying 21% oxygen, there is no point in converting air to lambda and AFR. The same with the display, it is displaying the maximum value because you are measuring air. Put a lighter under the sensor and you will see it changing.

Hope it helps.
Best Regards,
Christian Bylund
Bylund Automotive AB

ronny
Posts: 2
Joined: 22 Mar 2021 09:15

Re: Problems / no values displayed

Post by ronny » 20 Apr 2021 09:48

Christian_Bylund wrote:
15 Apr 2021 19:39
Hello Ronny,

Great you showed some pictures.

So let us start with Question 2, why does it not show you any number. It is because you are measuring air. As you can see it is displaying 21% oxygen, there is no point in converting air to lambda and AFR. The same with the display, it is displaying the maximum value because you are measuring air. Put a lighter under the sensor and you will see it changing.

Hope it helps.
Hello Christian_Bylund,

thank you for your help thank you. just as you wrote it is.

It was my fault.

Problem solved

THX

User avatar
Christian_Bylund
Posts: 255
Joined: 07 Mar 2015 18:09

Re: Problems / no values displayed

Post by Christian_Bylund » 22 Apr 2021 14:07

ronny wrote:
20 Apr 2021 09:48
Hello Christian_Bylund,

thank you for your help thank you. just as you wrote it is.

It was my fault.

Problem solved

THX
Glad to hear it is sorted out, thank you.
Best Regards,
Christian Bylund
Bylund Automotive AB

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