 
 // Singleton instance of the radio driver
 RH_RF95 rf95;
-int led = 13;
 
 void setup() 
 {
-    pinMode(led, OUTPUT);     
   Serial.begin(9600);
   Serial.println("Hello World from Server!");
   if (!rf95.init())

      rf95.send(data, sizeof(data));
      rf95.waitPacketSent();
      Serial.println("Sent a reply");
       digitalWrite(led, LOW);
    }
    else
    {

    uint8_t len = sizeof(buf);
    if (rf95.recv(buf, &len))
    {
      RH_RF95::printBuffer("request: ", buf, len);
      Serial.print("got request: ");
      Serial.println((char*)buf);
