thank you Klaus_K and mikb55
Yes I'm using just the loopback. And then I used the "receive". I have posted the images. Nobody had said to use "Send" yet. Only the "Loop" and the "Receive".
(I don't know if I already said it but I'm a beginner in CAN networks. I just know enough based on what I read of the OBD2 protocol diagnostic machines.)
I need help figuring out if the problem is mine or if I have any of the modules broken.
Is it possible to see from the values obtained on the Chips if they are normal?
Are they normal? Can I test the "Send" sketch? What kind of message then should I write to the "serial monitor"?
Can you send an example of what a message would be like for me?
thanks in advance.