LCD pinout

Sorry if my question sounds silly, but I'm barely new to arduino and studying eletronics by myself.

Well, I got a character LCD with only 6 pins, but I can't find anything that helps me to figure out it's pinout. I googled for a datasheet but I didn't find anything.

There is any common pinout for these LCD's? There is any risk if I experiment to do some pinouts, something to prevent it not to burn?

Thanks

upload a photo.. It should have some kinde of markings ??

DON’T DO ANYTHING until you get some more help (info) .
You need to post a photograph of the lcd with good close up detail.
If you have a link you can post to where you bought it that would help.
If it is only 6 wires it may be a SPI display :
Vcc= +5Vdc
GND= GND
SS= D10
MOSI= D11
MISO= D12
SCK= D13

There is a SAFE way to test it, even if you don’t know the digital pin assignment but you need to at least know
the polarity of the power pins. (which one is GND).
If you use 220 ohm resistors on ALL six pins, it would still work if it was connected correctly and would not be
damaged if connected incorrectly with ONE CONDITION: You have to know which pin is +5V and which is GND.
I don’t know what is the consequence of connecting these pins backwards with 220 ohm resistors on them.
This would mean you have 440 ohm of current limiting resistance but if it is REVERSE polarity I don’t know what
that would do.
The pinout above is correct for an arduino UNO IF is a SPI display but you still need some software.
I don’t know where to find that yet but I will look.

(how many characters ? 16 ?
How many lines ? 2 ?)

I found this:

/* Quick example to use FunGizmos serial LCD in I2C mode
* 
* Connections between LCD & Arduino  
* LCD P2
*   Pin1 not connected
*   Pin2 not connected
*   Pin3 SCL -> Analog in 5 (Arduino has internal pullup resistor)
*   Pin4 SDA -> Analog in 4 (Arduino has internal pullup resistor)
*   Pin5 VSS -> gnd
*   Pin6 VDD -> +5V
*
* To enable I2C mode of LCD Pads of R1 must be jumpered on back of LCD (Between R6 & R14 right below the black IC glob)
*
*/

#include <Wire.h>

int lcd_addr = 0x50; //default I2C hex address from datasheet
int blink;

void setup(){
  delay(1000); //allow lcd to wake up.
  
  Wire.begin(); //initialize Wire library
  
  // Wire library expects 7-bit value for address and shifts left appending 0 or 1 for read/write
  // Lets adjust our address to match what Wire is expecting (shift it right one bit)
  lcd_addr = lcd_addr >> 1; 
  
  //Send lcd clear command
  Wire.beginTransmission(lcd_addr);
  Wire.send(0xFE); //Cmd char
  Wire.send(0x51); //Home and clear
  Wire.endTransmission();
  
  Wire.beginTransmission(lcd_addr);
  Wire.send(0xFE); //Cmd char
  Wire.send(0x70); //Display LCD firmware version
  Wire.endTransmission();
  
  delay(2000);
  
  //Send lcd clear command
  Wire.beginTransmission(lcd_addr);
  Wire.send(0xFE); //Cmd char
  Wire.send(0x51); //Home and clear
  Wire.endTransmission();
  
  Wire.beginTransmission(lcd_addr);
  Wire.send("Hi I'm using I2C");
  Wire.endTransmission();
    
  Wire.beginTransmission(lcd_addr);
  Wire.send(0xFE); //Cmd char
  Wire.send(0x45); //Set Cursor pos
  Wire.send(0x40); //Line 2
  Wire.endTransmission();
    
  Wire.beginTransmission(lcd_addr);
  Wire.send("FunGizmos.com");
  Wire.endTransmission();

}



void loop(){
    
    Wire.beginTransmission(lcd_addr);
    Wire.send(0xFE); //Cmd char
    Wire.send(0x45); //Set Cursor pos
    Wire.send(0x40+15); //Line 2 last char
    Wire.endTransmission();
    
    Wire.beginTransmission(lcd_addr);
    if(blink)
       Wire.send('*');
    else
       Wire.send(' ');
    Wire.endTransmission();
    blink = !blink;
    
  delay(500);
}

here:
http://store.fungizmos.com/items/210

The example is for an I2C (two wire) interface not SPI so I don’t know if that is going to help you.
Check the attached datasheet to see if it looks like the same lcd.

NHD-0216K3Z-FL-GBW.pdf (331 KB)

I don't see any kind of marks, but I should have refered it has some numbers and letters marked on it. It is like it's part number, but I checked the internet and find nothing. Maybe tomorrow I can take a picture of it and show how it looks like.

I got the LCD from a friend. As far as I know, I think it is from RCL display Ltd.

With those numbers, maybe someone can help me.

Well, LCD is 6 pin, and seems to me that it's a 8x1 ou maybe 12/16x1.

The numbers are: LPH9392 - 1 M13I12710

Thanks

It surely goes without saying but I felt I should say it cause some just don't get it.

"If you don't have the pinout and spec sheets, don't you dare touching it?!"

DON'T DO ANYTHING until you get some more help (info) .

You need to post a photograph of the lcd with good close up detail.

I believe that is what I was saying here...