[chr]

I have built myself an ENET cable, following instructions in this post:
https://f30.bimmerpost.com/forums/sh...71&postcount=1
It works perfectly.
However, I would like to add an LED that indicate the activity, like others OBD2 cables / devices have.
I know it is not so useful, but I would like it

Could somebody explain how to connect the LED?

[Billfitz]

To indicate activity you would not connect an LED directly, it would have to be interfaced with a driver. The only direct connection possible would be to the + voltage and ground pins, which would show that the car ignition is turned on, but you don't need an LED to know that.

[IAmATeaf]

Why bother, one of the important things when coding is to minimise power draw as much as possible, yes I know an led would be a tiny draw but it really serves no purpose. As you’ll know when it working and you get a connection.