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Nextion GPIO Communications PoC

Okay here is Proof of Concept for "Serial over GPIO" on Enhanced 3.5" Displays

Printable ASCII characters 32 to 126, from GPIO to GPIO via modded FFC

[Updated Films - last was too poor to see text]

Took a Shortcut or two, so it’s not a full protocol. But works for RX and TX half duplex
Perhaps not the fastest at just under 5.4 characters per second (39 chars in 7.228s)


But now you know with a bit of work it is indeed possible,

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