Nokia 5110 LCD is a cheap and simple to use component that you can use in almost all your Arduino projects. There are lots of examples about it, but most of them are a bit complicated because it's used with other components. All I need is a simple 'Hello World' application to start with. Then I can build my complicated applications later. So let's start with Hello World.

What we need?

1. Arduino Nano
2. Nokia 5110 LCD
3. u8glib library. Download: https://bintray.com/olikraus/u8glib/Arduino

After downloading the library, follow Sketch>Include Library>Add .zip Library menu to include the library. I've also written how to use page loop in u8glib to write more sophisticated applications:

http://cuneyt.aliustaoglu.biz/en/how-to-manage-picture-loop-using-u8glib/

But this article will focus on using Nokia 5110 rather than u8glib.

Nokia 5110	Colour	Arduino Nano
RST	Yellow	D7
CE	Green	D8
DC	Blue	D9
Din	White	D10
Clk	Purple	D11
VCC	Red	3V3
BL	Brown	3V3
Gnd	Black	GND

And below is a Nokia 5110 LCD example with u8glib in its simplest form.

#include "U8glib.h"

U8GLIB_PCD8544 u8g(11, 10, 8, 9, 7); // Clk, Din, DC, CE, RST

void draw()
{
    u8g.setFont(u8g_font_unifont);
    u8g.drawStr(0, 20, "Merhaba ");
    u8g.drawStr(12, 36, "Dunya");
}

void setup()
{
    u8g.setColorIndex(1);
    u8g.setRot180(); // Ekranı 180 derece çevir
}

void loop()
{
    u8g.firstPage();

    do
    {
        draw();
    }
    while(u8g.nextPage());

    delay(1000);
}

Now we're ready to add some sensors and output their values into Nokia 5110 LCD.