int InputTXT_Int() {                
int val;
  while (Serial.available() == 0) ;  // Wait here until input buffer has a character
  {
    val = Serial.parseInt();        //  returns the first valid integer point number from the Serial buffer

    while (Serial.available() > 0)  
    {  Serial.read() ; }      // clear the keyboard buffer
  }
  return val;
}

float InputTXT_Float() {                
float val;
  while (Serial.available() == 0) ;  // Wait here until input buffer has a character
  {
    val = Serial.parseFloat();       //  returns the first valid floating point number from the Serial buffer

    while (Serial.available() > 0)  // .parseFloat() can leave non-numeric characters
    {  Serial.read() ; }      // clear the keyboard buffer
  }
  return val;
}
char InputTXT_Char() {
char val;
  while (Serial.available() == 0) ;  // Wait here until input buffer has a character
  {
     val = Serial.read();       //  returns the first valid floating point number from the Serial buffer

    while (Serial.available() > 0)  // .parseFloat() can leave non-numeric characters
    { Serial.read();  }      // clear the keyboard buffer
  }

  return val;
}

int a;
float b;
char t;
void setup() {
Serial.begin(9600);

}

void loop() {

 Serial.println(t);
 Serial.print("Num="); // 
b=InputTXT_Float();
 Serial.println(a);
 Serial.print("Text="); // put your main code here, to run repeatedly:
t=InputTXT_Char();

}
//