/*
  Blink count

Type a number from 1-9 into a serial terminal connection
and the onboard LED will blink that number of times.
*/

void setup() {
   Serial.begin(9600);
   pinMode(LED_BUILTIN,OUTPUT);
}


//
// main loop
//
void loop() {
  
  char chr;
  int code;
  //
  // check for a char
  //
  if (Serial.available()) {
    //
    // read, save, and send char
    //
    chr = Serial.read();
    code = (chr + 0) - 48;

    if( code > 0 and code <= 9) {
      Serial.print("You typed: ");
      Serial.print(code + '\0');
      for(int i = 0; i < code; i++) {
        digitalWrite(LED_BUILTIN, HIGH);
        delay(300);
        digitalWrite(LED_BUILTIN, LOW);
        Serial.print(".");
        delay(200);
      }
    }
    
    Serial.println();     
  }
}