help needed with LCD display

Thread Starter

hunterage2000

Joined May 2, 2010
487
hi, Ive just purchased a 16 x 2 LCD screen and it has 8 x 2 pins. Does anyone know how this works and how is the individual pins used?
 

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nerdegutta

Joined Dec 15, 2009
2,684
Have you checked the datasheet?

I'd think it will be something like this:
1: Vss - gnd
2: Vdd - powersupply
3: Vo - Contrast
4: RS - Register Select
5: R/W - Read / Write
6: E - Enable signal
7 - 14: DB0-DB7 - Databit0 - Databit14

15 and 16 might be backlight.

You should check the datasheet anyway. :)
 

Thread Starter

hunterage2000

Joined May 2, 2010
487
The thing is, how is each pin individually used because theres will a voltage running through 2 pins if the LCD is attached to the breadboard horizontally?
 

MrChips

Joined Oct 2, 2009
30,618
He meant, if he plugs the LCD in a breadboard each pair of pins will be shorted.
That is because the pinout on his LCD is 2x8 and not 1x14 nor 1x16.

The op will have to get a 2x8 header and 16 conductor ribbon cable and will have to hand-wire the 16 conductors to a 16-pin male header in order to plug it into a breadboard.

Make sure you get the part number of the LCD and locate the datasheet that shows the pinouts. If you post the part number someone should be able to help.
 
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