#include <Wire.h>
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  Wire.begin(21,22);
}

void loop() {
  String msg="";
  if (Serial.available()){
    msg=Serial.readStringUntil('\n');
  }
  if (msg.length()>0){
  Wire.beginTransmission(0x08);
  Wire.write((uint8_t*)msg.c_str(),msg.length());
  Wire.endTransmission();
  delay(10);
  Wire.requestFrom(0x08,15);
  String slave="";
  if (Wire.available()){
    slave=Wire.readStringUntil('\n');
    if (slave =="completed"){
      Serial.println("The slave has successfully completed printing the message");
      Serial.println(msg);
    }
    else{
      Serial.println("Slave hasnt printed the message in serial monitor");
    }
  }


  }
  delay(50);
}