LCD dont showing Text

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1

Hello guys,i used this circuit :


the lcd turn on but dont show text

the code is :

// include the library code:
#include <LiquidCrystal.h>

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11,7,5, 4, 3, 2);

void setup() {
  // set up the LCD's number of columns and rows: 
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("hello, world!");
}

void loop() {
  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
  lcd.print(millis()/1000);
}

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2

LCDs that have their connections below and to the left of the display almost always have a non-standard pinout. The pin numbers correspond to the 'normal' LCDs but their locations do not. You will need to consult the LCD datasheet to determine the proper connections.

Don