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    Posts
  • Fiona LiuFiona Liu
    Keymaster
    @bancroft
    2020-11-11 at 17:10
    Post count: 371
    #238

    Polling or interruption

  • BillDouglasBillDouglas
    Participant
    @billdouglas
    2020-11-12 at 11:29
    Post count: 2
    #245

    What does interrupt mean and does the LCD have an external pin to trigger the level change?

  • Fiona LiuFiona Liu
    Keymaster
    @bancroft
    2020-11-12 at 11:35
    Post count: 371
    #246

    mcu serial interrupt, the LCD can actively send. For example, a key press. Press a key, LCD will send data out to mcu through the serial port.

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