We used the NHD-3.12-25664UCW2 in our design. We checked with the code provided in your website. But the OLED is not up. From microcontroller we are trying to communicate using 8080 parallel interface. Is there any option to check OLED is ok or not?
Could you confirm with example you are using? Could you provide us your code to analyze? Could you double check your wiring? Could you please confirm the supply voltage you are providing to the display?
Unfortunately, there is no built in test you can do to ensure the OLED is ok.0
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