Unfortunately, it would be very difficult to get direct control of their signal lines. Many different ports use differential signals in some form, including ethernet, USB, and RS-232 (old DE-9 serial ports). Setting up your computer/laptop as a sender is a totally separate issue though. Any good electronics vendor will stock a variety of ICs which would do the job, depending on your exact requirements.
#Arduino software serial and wire library interference free#
It should be able to run a lot faster, and leave your program free to do other things. It could then produce a nice clean digital output which you could feed directly to any input on the Arduino. It would be much better to use some external circuitry to handle the differential signal. The exact speed would depend on how quickly your program could poll the ADCs and process the result. That means the transmission would have to be quite slow in order to work. It's definitely not ideal though, as ADCs are comparatively slow, and you would never be able to read both at exactly the same time. If you read both continuously, and apply suitable thresholds/triggers in software to identify level changes, you could probably reconstruct the original signal. The receiver uses the difference between the two signals to reconstruct the original data, eliminating any interference which may have been introduced en route.Īssuming the voltage level is safe (0-5v for most boards), you could connect each wire directly to an analog pin on the Arduino.
That is, the data is sent down two wires at the same time, but one is inverted. The salient point about UTP is that it uses differential transmission. They don't have any bearing on the sender or receiver. The shielding and twisting aren't really relevant, because they're just physical characteristics of the cable itself. By "UTP", I'm assuming you're referring to Unshielded Twisted Pair.
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