Setting unique hostname with chipID

LibreMetric.ino

@@ -17,6 +17,7 @@
 #include "d_helper.h"
 #include "FS.h"
 
+#define HOSTNAME "LibreMetric-"
 
 //################# DISPLAY CONNECTIONS ################
 // LED Matrix Pin -> ESP8266 Pin
@@ -66,10 +67,11 @@ void setup() {
   }
 
   display_message("Wi-Fi");
-
   WiFiManager wifiManager;
-  // reset saved settings
-  // wifiManager.resetSettings();
+  String hostname(HOSTNAME);
+  hostname += String(ESP.getChipId(), HEX);
+  WiFi.hostname(hostname);
+
   if (!MDNS.begin("ESP8266")) {
     DEBUG_PRINTLN("Error setting up MDNS responder!");
     while(1) {