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16X2 CHARACTER LCD DISPLAY WITH BLUE BACK LIGHT LCD

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16X2 CHARACTER LCD DISPLAY WITH BLUE BACK LIGHT LCD

LCD (Liquid Crystal Display) screen is an electronic display module and find a wide range of applications. A 16x2 LCD display is very basic module .

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LCD (Liquid Crystal Display) screen is an electronic display module and find a wide range of applications. A 16x2 LCD display is very basic module and is very commonly used in various devices and circuits. These modules are preferred over seven segments and other multi segment LEDs. The reasons being: LCDs are economical; easily programmable; have no limitation of displaying special & even custom characters (unlike in seven segments), animations and so on.

A 16x2 LCD means it can display 16 characters per line and there are 2 such lines. In this LCD each character is displayed in 5x7 pixel matrix. This LCD has two registers, namely, Command and Data.

The command register stores the command instructions given to the LCD. A command is an instruction given to LCD to do a predefined task like initializing it, clearing its screen, setting the cursor position, controlling display etc. The data register stores the data to be displayed on the LCD. The data is the ASCII value of the character to be displayed on the LCD. Click to learn more about internal structure of a LCD.
 

Pin Diagram: 

16 x 2 LCD PinOut | 16x2 Character LCD Module Pin diagram

Pin Description: 

 

 Pin No
 Function
 Name
1
Ground (0V)
Ground
2
Supply voltage; 5V (4.7V – 5.3V)
 Vcc
3
Contrast adjustment; through a variable resistor
 VEE
4
Selects command register when low; and data register when high
Register Select
5
Low to write to the register; High to read from the register
Read/write
6
Sends data to data pins when a high to low pulse is given
Enable
7
8-bit data pins
DB0
8
DB1
9
DB2
10
DB3
11
DB4
12
DB5
13
DB6
14
DB7
15
Backlight VCC (5V)
Led+
16
Backlight Ground (0V)
Led-

 

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16X2 CHARACTER LCD DISPLAY WITH BLUE BACK LIGHT LCD

16X2 CHARACTER LCD DISPLAY WITH BLUE BACK LIGHT LCD

16X2 CHARACTER LCD DISPLAY WITH BLUE BACK LIGHT LCD

LCD (Liquid Crystal Display) screen is an electronic display module and find a wide range of applications. A 16x2 LCD display is very basic module .