some changes

main.ino

@@ -89,6 +89,85 @@ uint16_t hexStringToUint16(String hex) {
     return tmp;
   }
 }
+
+String u16toStr(uint16_t u16Input)
+{
+  char tmp[16];
+  sprintf(tmp, "0x%.4X", u16Input);
+  return tmp;
+}
+
+String u8toStr(uint8_t u8Input)
+{
+  char tmp[8];
+  sprintf(tmp, "0x%.2X", u8Input);
+  return tmp;
+}
+
+String u64toStr(uint64_t input)
+{
+  String result = "";//
+  uint8_t base = 16; //hex 10 dec
+
+  do {
+    char c = input % base; input /= base;
+    if (c < 10) {
+      c += '0';
+    } else {
+      c += 'A' - 10;
+    }
+    result = c + result;
+  } while (input);
+  switch (result.length()) {
+    case 1: {
+        result = "000000000000000" + result;
+      } break;
+    case 2: {
+        result = "00000000000000" + result;
+      } break;
+    case 3: {
+        result = "0000000000000" + result;
+      } break;
+    case 4: {
+        result = "000000000000" + result;
+      } break;
+    case 5: {
+        result = "00000000000" + result;
+      } break;
+    case 6: {
+        result = "0000000000" + result;
+      } break;
+    case 7: {
+        result = "000000000" + result;
+      } break;
+    case 8: {
+        result = "00000000" + result;
+      } break;
+    case 9: {
+        result = "0000000" + result;
+      } break;
+    case 10: {
+        result = "000000" + result;
+      } break;
+    case 11: {
+        result = "00000" + result;
+      } break;
+    case 12: {
+        result = "0000" + result;
+      } break;
+    case 13: {
+        result = "000" + result;
+      } break;
+    case 14: {
+        result = "00" + result;
+      } break;
+    case 15: {
+        result = "0" + result;
+      } break;
+  }
+  return result;
+}
+
 //==============================================================================================================
 //=============================================CONFIG===========================================================
 void saveConfig () {