Arduino example for BlueShield

serial.ino

String tmp = "";

void setup() {
  Serial.begin(9600);
}

void loop() {
  
  while (Serial.available() > 0)  {
    tmp += char(Serial.read());
    delay(2);
  }
 
  if(tmp.length() > 0) {
    Serial.println(tmp);
    tmp = "";
  }
}