Hello everyone, I'm new to CAN and I'm using Arduino DUE with a sn65hvd230 and an OBD port like shown in the picture below.


The code that I'm implementing is the one on this link on GitHub


I'm using it on a Citroen C-Elysée but it's not returning any value to my computer. I wanted to know if there is anyone who can help me make it workand if the problem is from the software or the hardware. Thanks in advance