lcd display not showing anything

Other Hardware Displays
1

I think this would also go in displays but I don't know
this is my code

#include <LiquidCrystal.h>
LiquidCrystal lcd (12, 11, 5, 4, 3, 2);




void setup() {

  lcd.begin(16, 2);
  lcd.print("hello, world!");
}

void loop() {

  lcd.setCursor(0, 1);
  lcd.print(millis() / 100);
}

but my lcd wont show anything it just stays blank i dont know why please tell me

the wiring is the same as in https://www.arduino.cc/en/Tutorial/HelloWorld

2

Depends what you mean by "blank".

What does adjusting the contrast control do?

Have you grounded pin five?

Where is your circuit diagram and perfectly focused pictures taken in outside daylight but not full sun, not poorly visible in a dim room?

3

Hi httech,

To start with: your code is correct. I copied-pasted it to my own Arduino IDE and uploaded it to an Arduino Nano connected to a LCD. The LCD displays: Hello, World! and on the next line appears a rapidly increasing counter.

So far so good. If 'nothing'; happens, please check all the wires between your Arduino and the LCD. You can enjoy a wiring scheme on my website:

If then still nothing happens turn the potentiometer to change/improve contrast (background illumination should be visible all the time)

If then still nothing happens: return to this forum and show clear pictures of the wiring and of the LCD.