Very weird LCD problem...

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Joined: 11/02/2018
Location: Australia
Posts: 1853
Posted: 08:56am 18 Apr 2024      

1) As the display doesn't seem to have touch and SD isn't used do you need a pullup on MISO?

2) Perhaps try some shielding between the PCB and LCD. S scrap of sheet metal or foil wrapped in plastic.