 void setup() {
   Serial.begin(SERIAL_BAUD);
   pinMode(RELAY_PIN, OUTPUT);
-
-  digitalWrite(RELAY_PIN, RELAY_ON);
-  delay(2000);
-  digitalWrite(RELAY_PIN, RELAY_OFF);
+  ack();
 }
 
 void loop() {

  case '7': speed = 7; break;
  case '8': speed = 8; break;
  case '9': speed = 9; break;
  }
}

void wait() {

#define RELAY_ON  LOW
#define RELAY_OFF HIGH

#define TIME_WAIT  3000
#define TIME_ON    500
#define TIME_OFF   300
#define TIME_DOT   500
#define TIME_DASH  1000
#define TIME_MORSE 300

#define SEQ_WAIT  "w"
#define SEQ_BLINK "b"
