LCD not display text

[lafleche_2]

hi, i have a litle problem. my lcd work but dont want to print my text.
is this a sketch problem or my lcd ?
just to mention that the wire on the picture is exactly like the video, i just remove the poten.
thanks.

// LiquidCrystal - Version: Latest 
#include <LiquidCrystal.h>

LiquidCrystal lcd(12,11,5,4,3,2);


void setup() {
  lcd.begin(16,2);
  lcd.setCursor(0,0);
  lcd.print("lcd test");
    
}

void loop() {
  lcd.display();
  delay(1000);
  lcd.noDisplay();
  delay(1000);
}

[Koepel]

Is the display supposed to be that bright ?
Can you add a resistor of 220Ω for the backlight.

You need a resistor or a potentiometer for Vo. If you start to see blocks in the display, then you know that you are on the right track.

[groundFungus]

Did you try adjusting the contrast potentiometer?

[TomGeorge]

Hi,
Can I suggest you use one of the Example codes that comes with the Library?

Tom...