 void setup() {
   Serial.begin(9600);
   Serial.println("Starting...");
-  while(!Serial) { }
 
   Serial.println("Waiting for DHCP address.");
   if (Ethernet.begin(mac) == 0) {

    strcpy(packetBuffer,(char*)pgm_read_word(&loopPacket1) );
    strcat(packetBuffer, itoa( requestID, buffer, 10) );
    strcat(packetBuffer,(char*)pgm_read_word(&loopPacket2) );
    if (addr[7] == 0x10) strcat(packetBuffer, "ds1820");
    else if (addr[7] == 0x28) strcat(packetBuffer, "ds18b20");
    else if (addr[7] == 0x22) strcat(packetBuffer, "ds1822");
    else strcat(packetBuffer, "ds????");
    strcat(packetBuffer,(char*)pgm_read_word(&loopPacket3) );
    for (byte thisByte = 0; thisByte < 7; thisByte++) {

      strcat(packetBuffer, buffer); 
    }
    strcat(packetBuffer,(char*)pgm_read_word(&loopPacket5) );
    strcat(packetBuffer, dtostrf(celsius,4,2,buffer));
    //sprintf(packetBuffer + strlen(packetBuffer), "%4.2f", celsius);
    strcat(packetBuffer,(char*)pgm_read_word(&loopPacket6) );


