Virtual IoT Lab DEI

Simulation of establishing master slave model using Arduino and I2C Protocols:

interfacing

Instructions

Objective:

Understand master-slave communication between two Arduino boards using I2C (Inter-Integrated Circuit) protocol.

Steps to Perform:

Click "Start Simulation" to power up both Arduino circuits
Click on the push button on the master Arduino
Observe how the master reads button state and sends it via I2C
The slave Arduino receives the data and controls its LED accordingly
Switch between Master.ino and Slave.ino tabs to view both codes

Key Concepts:

I2C Protocol: Two-wire serial communication between devices
Master Device: Initiates communication and controls the clock line
Slave Device: Responds to master's requests with unique address
Wire.begin(): Initialize I2C communication (master or slave)
Wire.write(): Master sends data to slave device
Wire.read(): Slave receives data from master

Arduino Code

            //Code for Master Arduino

#include <Wire.h>
int pushButton = A0;
int x = 0;
void setup()
{
  Wire.begin();
  pinMode(pushButton, INPUT);
}
void loop()
{
  Wire.beginTransmission(1);
  x = digitalRead(pushButton);
  Wire.write(x);
  Wire.endTransmission();
  delay(500);
}
          