Ethernet cable testers are dime a dozen, but none of them are as elegant and multimeter-friendly as this tester from our Hackaday.io regular, [Bharbour]. An Ethernet cable has 8 wires, and the 9 vo… ...

If you don’t use an Arduino, the project uses a 555 chip to test the eight wires in an Ethernet cable. ... Continuity testing like this one is a function that just screams DIY.

Save some money on ethernet cables by assembling spare cable, ... Maybe you need enough of them to make DIY cables cost-effective; ... you’ll also want a tester; they retail for $25 or more.

DIY ethernet cable splicing. Gina Trapani. June 8, 2006 For those of you still running network cable all over the house, Of Zen and Computing has a great rundown on how to splice two cables ...