int incomingByte = 0; // for incoming serial data

void setup() {
  Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
  Serial.println("enter some data");
}

void loop() {
  // check if data is available
  if (Serial.available() > 0) {
    // read the incoming byte:
    incomingByte = Serial.read(); 
    // prints the received data
    Serial.print("I received char: ");
    Serial.println((char)incomingByte);  
    Serial.print("I received BIN: ");
    Serial.println(incomingByte, BIN);
    Serial.print("I received HEX: ");
    Serial.println(incomingByte, HEX);
    Serial.print("I received DEC: ");
    Serial.println(incomingByte, DEC);
    Serial.println("--------");
  }
   
    
}