No Stupid Questions

2174 readers

5 users here now

There is no such thing as a Stupid Question!

Don't be embarrassed of your curiosity; everyone has questions that they may feel uncomfortable asking certain people, so this place gives you a nice area not to be judged about asking it. Everyone here is willing to help.

ex. How do I change oil
ex. How to tie shoes
ex. Can you cry underwater?

Reminder that the rules for lemmy.ca still apply!

Thanks for reading all of this, even if you didn't read all of this, and your eye started somewhere else, have a watermelon slice 🍉.

founded 2 years ago

MODERATORS

[email protected]

Are there any devices for telling what HDMI or copper cables go together when running them through a wall? (lemmy.ca)

submitted 2 weeks ago by [email protected] to c/[email protected]

8 comments fedilink hide all child comments

I know I can use an HDMI source like a Raspberry Pi and a small screen for HDMI and could twist copper cable together and measure continuity through them to narrow down which is which but I'm wondering if there is an easier way. Maybe something I connect to either end?

you are viewing a single comment's thread
view the rest of the comments

[–] Anticorp 9 points 2 weeks ago (1 children)

Yes, it's called a toner. You put one piece on one end of the wire, then go put the other piece on the wires at the other end until you hear an audible tone. That's how you match them up. Label them after you tone them!

[–] quixotic120 3 points 2 weeks ago

Tone chaser def the best here. Harbor freight (if op is USA) has shitty ones for like $10 that do the job fine.

If you can’t get one a multimeter in continuity mode with some long wire works if you’re tracing in one area. If it’s a huge area or across multiple rooms you can put low voltage on pins and use the meter to check for voltage on the other end. Make sure it’s not plugged in though