16×2 Character LCD Module Blue Background

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Description

16×2 Character LCD Module Blue Background (Liquid Crystal Display) screen is an electronic display module and find a wide range of applications. A 16×2 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.

A16×2 LCD means it can display 16 characters per line and there are 2 such lines. In this LCD each character is displayed in 5×7 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.

16×2 Character LCD Module Blue Background Pins Diagram:

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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