bluebillo.ino

const int LED = 13;
const int PWR = 12;

char blueName[4] = "lazy";
char pin[5] = "0000";
char blueSpeed = "4";
char mode = "1"; // 0 slave, 1 master

void setup() {
  pinMode(LED, OUTPUT);
  pinMode(PWR, OUTPUT);

  Serial.begin(38400);
  
  digitalWrite(LED, HIGH);
  delay(4000);
  digitalWrite(LED, LOW);

  digitalWrite(PWR, HIGH);
  delay(1000);
 
  Serial.print("AT\r\t");
  // Serial.print("AT+NAME");
  Serial.print("AT+NAME=");
  Serial.print(blueName);
  Serial.print("\r\t");
  Serial.print("AT+PIN="); // AT+PSWD
  Serial.print(pin);
  Serial.print("\r\t");

  Serial.print("AT+MODE=");
  Serial.print(mode);
  Serial.print("\r\t");

  digitalWrite(LED, HIGH);
  
}

void loop() {
  // put your main code here, to run repeatedly:

}