Well I need some way to trace some network lines that were installed while my house was being built 7 years ago. Unfortunatly they weren't labeled at that time. You can spend a lot of money on a commercial unit, or with a little now how and 5 dollars worth of part you can make your own.

Step 1: Parts

Here is a list of the Parts that I used on this build:

Length of Cat5 cableabout 6" is all that is needed
9 volt battery connector 2 of them
LED's 3 of them
Resitor 330ohm 3 of them
RJ45 connectors 2 of them
RJ45 wall ports 2 of them

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