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  • Okay, but is there then a line, which WILL refresh the state shown on LCD? I can't figure out this part of the job. Commented Sep 20, 2018 at 13:23
  • the OP has posted a question here ...arduino.stackexchange.com/questions/56061/… .... the use of delay() was addressed ..... it appears that the OP is unable to learn from experience Commented Sep 21, 2018 at 0:02