Looking at this NX4827P043_011 board, there appears to be an optional resistor populated at R59. Based on the included text, it likely modifies the boards protocol between TTL Serial and RS-232. A quick search of this forum reveals only a single post from 2021 discussing this note, and similar threads others involving the addition of a TTYL to RS232 or RS4-22/485 converter.
Does anyone have experience with removing this resistor, or know if the Nextion board natively supports RS-232? Thanks!
