preparation to move the command execution to another function

external_control/external_control.ino

@@ -101,8 +101,11 @@ String waitForSerialInput(uint8_t bytes){
   return string;
 }
 
+void runCommand(char command, String argument){
   
-void runCommand(){
+}
+
+void getAndRunCommand(){
   uint8_t command = Serial.read();
   int analogPin;
   String mode;
@@ -124,7 +127,8 @@ void runCommand(){
       "  <data>\n\r"
       "  s success\n\r"
       "  e error\n\r"
-      "  \\r\\n ready (this message uses \n\r to not show up as \"ready\" after the first line)\n\r"
+      "  \\n\\r data separator\n\r"
+      "  \\r\\n ready\n\r"
       "commands (input to serial line)\n\r"
       "  R pseudo-reset\n\r"
       "    run setup again\n\r"
@@ -285,7 +289,7 @@ void setup(){
 void loop(){
   while (true){
     if(Serial.available() > 0) {
-      runCommand();
+      getAndRunCommand();
       Serial.print("\r\n"); // send "ready" status information
     }
   }