lcd.print("Hello, Keyes!"); //show "Hello, Keyes!"
}
void loop () {
}
//***********************************************************************
*
(6)Test Results:
Upload code, wire up according to connection diagram and power on.
1602 LCD will display“Hello World！”at the first row and show“Hello
Keyes！”at the second row.
Note: wire up connection diagram, upload code and power on. You can
adjust the potentiometer on the back of 1602LCD display module to
display the character strings
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