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  • But with the above change sometimes the display freaks out. I see the busy pin toggle like crazy

  • there may be other commands that need to be "waited" for. If you look at C source for these (heltec, waveshare) you'll see the spots where they wait for BUSY to clear. seeing BUSY go hi/lo a lot means your just sending commands, should not be a problem. But if the timing is off, you'll get weird effects like you've been seeing


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