This simple AVR ATtiny2313-based LAN tester allows you to check the type of LAN cables (straight or cross) and to test whether LAN cable is broken or not. The project has 8 outputs. Each one of them produces a pulse successively and only one output can be high at any time.
The PRO3000 Tone & Probe Kit is a great tool. It’s designed use is for the electronics, computer and telecommunications fields. The advantage it gives, over conventional circuit testers, is: 1) the ability to trace a circuit through one of several conduits so you don’t end up opening 10 different junction boxes to find [...]
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