revised wifiMacAddress()

WiFiHelper.cpp

@@ -33,6 +33,13 @@ extern "C" {
 String myMacAddress;
 
 String wifiMacAddress() {
+ if (!myMacAddress || (myMacAddress == "")) {
+ myMacAddress = WiFi.macAddress(); // this returns 6 hex bytes, delimited by colons
+ myMacAddress.replace(":", "");
+ myMacAddress.replace("-", ""); // probably not used, but just in case they MAC address starts returning other well known delimiters such as dash
+ myMacAddress.replace(" ", ""); // or perhaps even a space
+ }
+
  return myMacAddress;
 }
 
@@ -113,7 +120,6 @@ int wifiConnect(int maxAttempts) {
  WiFiStart(IS_EAP); // see GlobalDefine.h to set Enterprise Access Point on or off
 
 
- myMacAddress = WiFi.macAddress(); // this returns 6 hex bytes, delimited by colons
 
  WIFI_DEBUG_PRINTLN("Starting WiFi Connection Loop...");
  while (WiFi.status() != WL_CONNECTED) { // try to connect wifi for 6 sec then reset
@@ -142,11 +148,8 @@ int wifiConnect(int maxAttempts) {
  }
  WIFI_DEBUG_PRINTLN("WiFi Connected!");
  delay(5000); // TODO why wait?
- myMacAddress.replace(":", "");
- myMacAddress.replace("-", ""); // probably not used, but just in case they MAC address starts returning other well known delimiters such as dash
- myMacAddress.replace(" ", ""); // or perhaps even a space
 
- Serial.println("MAC Address=" + myMacAddress);
+ Serial.println("MAC Address=" + wifiMacAddress());
  HEAP_DEBUG_PRINTLN(DEFAULT_DEBUG_MESSAGE);
  WIFI_DEBUG_PRINT("wifiConnect: Done!");
  return 0;