Arduino interface with I2C and multiple LCD

Arduino interface with I2C and multiple LCD

In this article we will learn how to interface arduino with I2C & multiple LCD in proteus.
In the last post we will learn how to interface arduino with I2C & LCD in proteus. You can visit our website,
I hope you appreciate my work, let’s discuss about today’s project.

Components which we use in this project are listed below

1. Arduino nano
2. Virtual terminal
3. I2C (4)
4. LCD 16×2 (4)
5. Jumper wires

Diagram of this project is below:

Construction of arduino interface with I2C & multiple LCD in Proteus

1. I2C (1)& LCD (1)

• Connect TX point of virtual terminal with the RX point of arduino nano
• Connect the RX point of virtual terminal with the TX point of arduino nano
• Connect A4 pin of arduino with the SDA pin of I2C (1)
• Connect A5 pin of arduino with the SCL pin of the I2C (1)
• Connect A0,A1,A2 points of I2C (1) with the GND
• Connect P0 pin of I2C (1) with the RS point of LCD display(1)
• Connect P1 pin of I2C(1) with the RW point of LCD display (1)
• Connect P2 pin of I2C (1) with the E point of LCD display (1)
• Connect P3 pin of I2C (1) with the D3 point of LCD display (1)
• Connect the P4 pin of I2C (1) with the D4 point of LCD display (1)
• Connect the P5 pin of I2C (1) with the D5 point of LCD display (1)
• Connect the P6 pin of I2C (1) with the D6 point of LCD display (1)
• Connect the P7 pin of I2C (1) with the D7 point of LCD display (1)
• Connect VSS point of LCD (1) with the GND point of I2C (1)
• Connect the VDD point of LCD (1) with the GND

2. I2C (2) & LCD (2)

 

• Connect A0,A1,A2 points of I2C (2) with the GND
• Connect P0 pin of I2C (2) with the RS point of LCD display(2)
• Connect P1 pin of I2C(2) with the RW point of LCD display (2)
• Connect P2 pin of I2C (2) with the E point of LCD display (2)
• Connect P3 pin of I2C (2) with the D3 point of LCD display (2)
• Connect the P4 pin of I2C (2) with the D4 point of LCD display (2)
• Connect the P5 pin of I2C (2) with the D5 point of LCD display (2)
• Connect the P6 pin of I2C (2) with the D6 point of LCD display (2)
• Connect the P7 pin of I2C (2) with the D7 point of LCD display (2)
• Connect VSS point of LCD (2) with the GND point of I2C (2)
• Connect VEE point of LCD (2) with the GND point
• Connect SCL point of I2C (2) with the points of SCL of both I2C (3,4) through A5 pin of arduino
• Connect the SDA point of I2C (2) with the points of SDA of both I2C (3,4) through A4 pin of arduino

3. I2C (3) & LCD (3)

• Connect A0,A1,A2 points of I2C (3) with the GND
• Connect P0 pin of I2C (3) with the RS point of LCD display(3)
• Connect P1 pin of I2C(3) with the RW point of LCD display (3)
• Connect P2 pin of I2C (3) with the E point of LCD display (3)
• Connect P3 pin of I2C (3) with the D3 point of LCD display (3)
• Connect the P4 pin of I2C (3) with the D4 point of LCD display (3)
• Connect the P5 pin of I2C (3) with the D5 point of LCD display (3)
• Connect the P6 pin of I2C (3) with the D6 point of LCD display (3)
• Connect the P7 pin of I2C (3) with the D7 point of LCD display (3)
• Connect VSS point of LCD (3) with the GND point of I2C (3)
• Connect VDD point of LCD (3) with the GND point

4. I2C (4) & LCD (4)

• Connect A0,A1,A2 points of I2C (4) with the GND
• Connect P0 pin of I2C (4) with the RS point of LCD display(4)
• Connect P1 pin of I2C(4) with the RW point of LCD display (4)
• Connect P2 pin of I2C (4) with the E point of LCD display (4)
• Connect P3 pin of I2C (4) with the D3 point of LCD display (4)
• Connect the P4 pin of I2C (4) with the D4 point of LCD display (4)
• Connect the P5 pin of I2C (4) with the D5 point of LCD display (4)
• Connect the P6 pin of I2C (4) with the D6 point of LCD display (4)
• Connect the P7 pin of I2C (4) with the D7 point of LCD display (4)
• Connect VSS point of LCD (4) with the GND point of I2C (4)
• Connect VDD point of LCD (4) with the GND point

Working of arduino interface with I2C & multiple LCD in Proteus:

Using an Arduino with I2C and multiple LCD displays involves connecting the displays to the Arduino using the I2C communication protocol.

I2C (Inter-Integrated Circuit) is a popular serial communication protocol that allows you to connect multiple devices (in this case, LCD displays) to a single Arduino using only two wires:

Applications of arduino interface with I2C & multiple LCD in Proteus:

• Robotics
• Information Displays
• Industrial Automation
• Home Automation

Advantages of arduino interface with I2C & multiple LCD in Proteus:

• Simplified Wiring
• Addressable Devices
• Reduced Interference
• Scalability

Program code of this project is below:

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

 

// Set the LCD address to 0x27 for a 16 chars and 2 line display

LiquidCrystal_I2C lcd(0x20, 16, 2);

LiquidCrystal_I2C lcd2(0x22, 16, 2);

LiquidCrystal_I2C lcd3(0x23, 16, 2);

LiquidCrystal_I2C lcd4(0x24, 16, 2);

 

void setup()

{

// initialize the LCD

lcd.begin();

lcd2.begin();

lcd3.begin();

lcd4.begin();

 

// Turn on the blacklight and print a message.

lcd.backlight();

lcd2.backlight();

lcd3.backlight();

lcd4.backlight();

lcd.print(“Hello, world!”);

delay(1500);

lcd.clear();

lcd2.print(“Hello, world!”);

delay(1500);

lcd.clear();

lcd3.print(“Hello, world!”);

delay(1500);

lcd.clear();

lcd4.print(“Hello, world!”);

delay(1500);

lcd.clear();

}

 

void loop()

{

lcd.setCursor(0, 0);

lcd.print(“Projectiot123.co”);

lcd.setCursor(0, 1);

lcd.print(” Micro solution “);

delay(500);

lcd.setCursor(0, 1);

lcd.print(”           “);

delay(500);

 

// Do nothing here…

}