Nissan Consult and Arduino

basicmods:
the good news is that with the new program I was able to get it to interface using a RS232-TTL converter, so I will be able to use my Mega and maybe do some data logging as well as add some other features that I was wanting.

Hi!
I want to create device like you.
Can you plz explain for what purpose did you use RS232-TTL converter ? Why do not connect uart (tx-rx) to rs232 on consult adapter ? Seems Crim didn't use any converter at all.