Project 1 - Interfacing a 16*2 LCD with Arduino using I2C protocol

Aim:

Overview of the Project: 

In this project implementing the Code for “Interfacing a 16*2 LCD with two Arduino’s (one for Master and one for Slave) using Inter-Integrated Circuit (I2C) communication protocol” by sending the message to LCD using I2C communication protocol and display the message on LCD screen.

Goals:

• Communication between Arduino and 16*2 LCD using I2C protocol.
• Displaying the message sent by Master and received by slave i.e. LCD display.

Key Highlights of the Project: 

• Using the inter-integrated circuit communication protocol, transferring the data i.e. the message we want to display is sent to the LCD.
• Two Arduino’s connected to the LCD display and the communication is executed using I2C protocol between Arduino and the LDC display.

Deliverables of this project: 

• Communication between the Arduino’s and LCD using I2C.
• The message passed from master to slave and displayed on the 16*2 LCD.

Expected Outcomes:

• Students will get the Knowledge of I2C communication Protocol and the Arduino.
• The Hardware connection of all components used in this project.
• Displaying the message sent by master (Arduino) and received by the slave (16*2 LCD display).

Solutions:

 Master code:

#include<LiquidCrystal.h>                        //Library for LCD display function

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);         //Define LCD Module Pins (RS,EN,D4,D5,D6,D7)

int val1=A4; 

int val2=A5;

void setup()

{

lccd.begin(16,2);

}

void loop()

{

lcd.setCursor(0,0);                     //Sets Cursor at line one of LCD

lcd.print(">> Master <<");          //Prints >> Master << at LCD

lcd.setCursor(0,1);                     //Sets Cursor at line two of LCD

lcd.Print("SlaveVal: 99");            //Prints SlaveVal: in LCD

LCD

delay(1000);

}

Slave Code:

#include <LiquidCrystal.h>                     //Library for LCD Display Function

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);        //Define LCD

Module Pins(RS,EN,D4,D5,D6,D7)

int val1=A4;

int val2=A5;

void setup()

{

lcd.begin(16,2);

}

void loop()

{

lcd.setCursor(0,0);                             //Sets Cursor at line one of LCD

lcd.print(">> Slave <<");                  //Prints >> Slave << at LCD

lcd.setCursor?(0,1);                         // Sets Cursor ar line two of LCD

lcd.print("MasterVal: 100");              //Prints MasterVal: in LCD

delay(1000);

}