LCD doesn't display desired characters.

Other Hardware Displays
2
  • Start out with a simple program that simply displays something on the first line of the LCD. Do this in setup() and leave loop() blank between the { } brackets.
  • Use a much smaller resistor to set your contrast. You could even start out with 0 ohms (connect pin 3 to GND).
  • Use "code" tags when displaying code. Highlight your code and click on the "code" icon. It's at the left </>.

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