new way init led matrix

LibreMetric.ino

@@ -88,8 +88,19 @@ void handleTelnet(void) {
 
 void setup() {
   Serial.begin(115200); // initialize serial communications
+  DEBUG_PRINT("\n\r");
+   matrix.fillScreen(LOW);  //clr screen
+   
+  for (int i=0; i<numberOfHorizontalDisplays; i++){
+    DEBUG_PRINT("Changing orientation of display #");
+    DEBUG_PRINTLN(i);
+    matrix.setRotation(i, 1);
+  }
+
+  display_message("Wifi");
 
   WiFiManager wifiManager;
+  wifiManager.setDebugOutput(false); // no debug
   wifiManager.setTimeout(180);
   if(!wifiManager.autoConnect("LibreMetric")) {
     DEBUG_PRINTLN(F("failed to connect and timeout occurred"));
@@ -97,6 +108,7 @@ void setup() {
     ESP.reset(); //reset and try again
     delay(180000);
   }
+  matrix.fillScreen(LOW);
   // At this stage the WiFi manager will have successfully connected to a network, or if not will try again in 180-seconds
   DEBUG_PRINTLN(F("WiFi connected..."));
   DEBUG_PRINTLN(WiFi.localIP());
@@ -113,15 +125,9 @@ void setup() {
   DEBUG_PRINTLN(F("Webserver started..."));
   matrix.setIntensity(brightness);
   brightness=16;
-  Serial.print(numberOfHorizontalDisplays);
+  DEBUG_PRINT(numberOfHorizontalDisplays);
   DEBUG_PRINTLN(" displays configurated...");
     
-  for (int i=0; i<numberOfHorizontalDisplays; i++){
-    Serial.print("Changing orientation of display #");
-    DEBUG_PRINTLN(i);
-    matrix.setRotation(i, 1);
-  }
-  
   server.on("/", GetMessage);
   message = "Bienvenue !";