Does your NABU require a very short serial cable to work reliably? What happens if I press my luck? (80s reference)
I make plenty of mistakes (I'm aware of at least two of them in this video), and I'm open to corrections from people who know more about this stuff. But I back up my assertions here with measurements, and references are included below. So just telling me I'm wrong without a citation is not helpful.
At the time of this posting, the slideshow has been running for 4 hours and has not failed yet.
Robert's Smorgasbord RS-422 video series (highly recommended!):
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (1/2) https://youtu.be/6YWZMRe-7DQ
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (2/2) https://youtu.be/hoZ4D2Tk9Qc
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (1/4) https://youtu.be/__EvQgr3sGA
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (2/4) https://youtu.be/0WHKMjBg1QQ
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (3/4) https://youtu.be/y0wD84uRvbY - GROUNDING
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (4/4) https://youtu.be/Xamy60ZRohw - TWISTED PAIRS AND SHIELDING
Grounding and Shielding of electric circuits by Eugene Khutoryansky: https://youtu.be/rIhF410L2SU