EEVblog Electronics Community Forum
Electronics => Beginners => Topic started by: Mute on February 13, 2014, 03:14:49 pm
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First post, hello! :blah:
I want to make it easy to hook up my scope to the OBD adapter in my car, while a computer is connected. Cutting an OBD2 extension lead, soldering jacks inline for each wire and mounting it all in a wee project box is the easiest route.
I was wondering about introducing some protection for my instruments though. How would i best go about protecting against:
- Over voltage conditions - inline an opto coupler? Would this potentially screw with the RF signals?
- Polarity errors
- Over current - unlikely i'd have thought although i could be using more than 1 probe on the scope at a time so it's possible, maybe i should include fuses anyway
I'd like to make this a keeper, i can imagine using it many times over the years so a little extra effort up front to make a quality breakout box would be worthwhile.