satan wins

Feather9x_TX_RX_serial/Feather9x_TX_RX_serial.ino

@@ -57,10 +57,14 @@ void setup() {
   // If you are using RFM95/96/97/98 modules which uses the PA_BOOST transmitter pin, then 
   // you can set transmitter powers from 5 to 23 dBm:
   rf95.setTxPower(23, false);
-
   Serial.println("Please enter your name: ");
+}
+
+void loop() {
+  
   int ndx = 0;
-  while (Serial.available() == 0) {}
+  if (chatName[0] == '\0'){
+  
     while (Serial.available() > 0) {    
       // read the incoming byte:
       incomingByte = Serial.read();
@@ -68,6 +72,7 @@ void setup() {
       chatName[ndx] = incomingByte;
       ndx++;
     }
+    if (chatName[0] != '\0'){
       char send_name[RH_RF95_MAX_MESSAGE_LEN] = "";
       strcpy(send_name, chatName);
       strcat(send_name, " has joined the chat!");
@@ -75,15 +80,13 @@ void setup() {
       Serial.print("Welcome ");
       Serial.println(chatName);
       rf95.send((uint8_t *)send_name, RH_RF95_MAX_MESSAGE_LEN);
-}
-
-void loop() {
+    }
+  }
   memset(receivedChars, '\0', sizeof(receivedChars));
 
   int dataReceived = 0;
-  int ndx = 0;
 
-  while (Serial.available() > 0) {
+  while (Serial.available() > 0 && chatName[0] != '\0') {
     dataReceived = 1;
     
     // read the incoming byte: