//Program: Study_ArduinoCode_02variable.ino
bool KMUTNB = 1; //Global variable
int LED0 = 2;

void setup(){
  Serial1.begin(115200);
  //delay(5000);
  //Serial1.println();
  //Serial1.println(""); //ln = line
  Serial1.println("Hello, Just say something");
  pinMode(LED0, OUTPUT);
}

void loop(){
  //Serial1.print("KMUTNB Variable = ");
  //Serial1.println(KMUTNB);
  //KMUTNB = !KMUTNB;
  digitalWrite(LED0, HIGH);  
  delay(200);                      
  digitalWrite(LED0, LOW);   
  delay(1500);              
}