Are See

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  • NHD0420-CW-AY3 not working (display blank dark)

    1. Community
    2. OLEDs

    I'm using the older version of this display. It runs good in 8 bit and 4 bit mode using my own bit bang code with a  5V supply.  In I2C mode nothing happens using either a 2.8V or 3.2V supply. Ques...

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