Good afternoon, Mr. Gustavo: My name is Leonardo Jaime Reyes; I have lowered his file, I find the part of the OBD2 interface very integrated because I love cars. But here in Colombia that information is very monopolized. That is why I would like to know if you could clarify a little about the elements that make up the interface circio as the connectors, or if I can use the LM327 for those same circuits. Thanks for your attention and collaboration!