Module 8 Arduino

It is a Liquid Crystal Display module connected to an Arduino board to display:

• Text

• Numbers

• Symbols

• Sensor readings

• Messages and system status

LCDs are commonly used in Arduino projects because they allow users to visually monitor data and outputs.

Arduino LCD

A flat electronic display technology that uses liquid crystals to produce visible characters or graphics.

LCD

Characteristics of LCD:

• Low power consumption

• Lightweight

• Inexpensive

• Easy to interface with microcontrollers

ENTER DONE

DONE

Common LCD Size

16x2 LCD

Other sizes of LCD

• 20x4 LCD

• 16x4 LCD

Main Parts of LCD:

• Display screen

• Pins/connectors

• Backlight

• Contrast control

ENTER DONE

DONE

(Components of a 16x2 LCD)

Pin 1

Ground (GND)

(Components of a 16x2 LCD)

Pin 2

VCC (5V)

(Components of a 16x2 LCD)

Pin 3

V0

(Components of a 16x2 LCD)

Pin 4

RS (Register Select)

(Components of a 16x2 LCD)

Pin 5

RW

(Components of a 16x2 LCD)

Pin 6

E (Enable)

(Components of a 16x2 LCD)

Pins 7-14

D0-D7

(Components of a 16x2 LCD)

Pin 15

Backlight Anode (LED+)

(Components of a 16x2 LCD)

Pin 16

Backlight Cathode (LED-)

Types of Arduino LCD Connections:

Parallel LCD

I2C LCD

I2C Pins

ENTER DONE

DONE

How LCD Communicates with Arduino:

• Arduino sends commands/data

• LCD controller receives signals

• Characters appear on screen

ENTER DONE

DONE

LCD Can Display:

• Letters

• Numbers

• Symbols

• Custom characters