Ethernet (LAN RJ45) cable tester with Arduino

In this article you can find instruction on how to make a simple ethernet cable tester driven by an Arduino. I was inspired by this page that simply and clearly describes how to make a tester for ethernet cables (straight or cross) with a master and a slave unit, so to be able to test also cable already in place. I did nothing more than following the instructions and writing few lines of code for Arduino.”

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