I want to be able to use my ethernet card and detect signals from it using LED lights, and way later on in more sophisticated SBC circuits.
I researched, and I noticed that four pins are marked TX+, TX-, RX+, and RX-.
Does it work if I leave TX- floating, RX- floating, and connecting TX+ to my input source (which for now is a button tied to +5V), and connecting RX+ to the anode of an LED and a resistor in series, and grounding the other end of the resistor? or do I have to do an analog to digital conversion?
I researched, and I noticed that four pins are marked TX+, TX-, RX+, and RX-.
Does it work if I leave TX- floating, RX- floating, and connecting TX+ to my input source (which for now is a button tied to +5V), and connecting RX+ to the anode of an LED and a resistor in series, and grounding the other end of the resistor? or do I have to do an analog to digital conversion?