diff --git a/.github/workflows/clang-format-check.yml b/.github/workflows/clang-format-check.yml
index e08b28c2ca0..86c9faaa1ce 100644
--- a/.github/workflows/clang-format-check.yml
+++ b/.github/workflows/clang-format-check.yml
@@ -1,16 +1,16 @@
-name: clang-format Check
+name: Formatting Check
 
 on: [push, pull_request]
 jobs:
   formatting-check:
-    name: Formatting Check
+    name: clang-format-diff
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
       with:
         fetch-depth: 2
-    - name: Run clang-format style check for C/C++/Protobuf programs.
-      uses: lucasssvaz/arduino-esp32-format@v1.0
+    - name: Run clang-format style check for Arduino programs.
+      uses: lucasssvaz/arduino-esp32-format@main
       with:
         clang-format-version: '15'
         check-path: ${{ matrix.path }}
diff --git a/cores/esp32/dummy.cpp b/cores/esp32/dummy.cpp
new file mode 100644
index 00000000000..1fc144e2659
--- /dev/null
+++ b/cores/esp32/dummy.cpp
@@ -0,0 +1,64 @@
+/**
+ * base64.cpp
+ *
+ * Created on: 09.12.2015
+ *
+ * Copyright (c) 2015 Markus Sattler. All rights reserved.
+ * This file is part of the ESP31B core for Arduino.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "Arduino.h"
+extern "C" {
+#include "libb64/cdecode.h"
+#include "libb64/cencode.h"
+}
+#include "base64.h"
+
+/**
+ * convert input data to base64
+ * @param data const uint8_t *
+ * @param length size_t
+ * @return String
+ */
+String base64::encode(const uint8_t * data, size_t length)
+{
+    size_t size = base64_encode_expected_len(length) + 1;
+    char * buffer = (char *) malloc(size);
+    if(buffer) {
+        base64_encodestate _state;
+        base64_init_encodestate(&_state);
+        int len = base64_encode_block((const char *) &data[0], length, &buffer[0], &_state);
+        len = base64_encode_blockend((buffer + len), &_state);
+
+        String base64 = String(buffer);
+        free(buffer);
+        return base64;
+    }
+    return String("-FAIL-");
+}
+
+/**
+ * convert input data to base64
+ * @param text const String&
+ * @return String
+ */
+String base64::encode(const String& text)
+{
+    return base64::encode((uint8_t *) text.c_str(), text.length());
+}
+