diff --git a/esp8266_deauther/A_config.h b/esp8266_deauther/A_config.h
index 5bcf00d..d974a28 100644
--- a/esp8266_deauther/A_config.h
+++ b/esp8266_deauther/A_config.h
@@ -1,10 +1,14 @@
 #ifndef config_h
 #define config_h
 
+#define ENABLE_DEBUG
+#define DEBUG_PORT Serial
+#define DEBUG_BAUD 115200
+
 #define DEFAULT_ESP8266
 
 /* ---------------------------------------------------------- */
-/* ===>> !!! Uncomment the board taht you're using: !!! <<=== */
+/* ===>> !!! Uncomment the board that you're using: !!! <<=== */
 /* ---------------------------------------------------------- */
 
 // #define NODEMCU
diff --git a/esp8266_deauther/debug.h b/esp8266_deauther/debug.h
new file mode 100644
index 0000000..2c7fec5
--- /dev/null
+++ b/esp8266_deauther/debug.h
@@ -0,0 +1,45 @@
+/*
+   Copyright (c) 2020 Stefan Kremser (@Spacehuhn)
+   This software is licensed under the MIT License. See the license file for details.
+   Source: github.com/spacehuhn/esp8266_deauther
+ */
+
+#pragma once
+
+#include "config.h"
+
+#include <climits>   // LONG_MAX
+#include <Arduino.h> // Serial
+
+#ifdef ENABLE_DEBUG
+
+#define debug_init()\
+    DEBUG_PORT.begin(DEBUG_BAUD);\
+    DEBUG_PORT.setTimeout(LONG_MAX);\
+    DEBUG_PORT.println();
+
+#define debug(...) DEBUG_PORT.print(__VA_ARGS__)
+#define debugln(...) DEBUG_PORT.println(__VA_ARGS__)
+#define debugf(...) DEBUG_PORT.printf(__VA_ARGS__)
+#define debugF(...) DEBUG_PORT.print(F(__VA_ARGS__))
+#define debuglnF(...) DEBUG_PORT.println(F(__VA_ARGS__))
+
+#define debug_available() DEBUG_PORT.available()
+#define debug_read() DEBUG_PORT.read()
+#define debug_peek() DEBUG_PORT.peek()
+
+#else /* ifdef ENABLE_DEBUG */
+
+#define debug_init() 0
+
+#define debug(...) 0
+#define debugln(...) 0
+#define debugf(...) 0
+#define debugF(...) 0
+#define debuglnF(...) 0
+
+#define debug_available() 0
+#define debug_read() 0
+#define debug_peek() 0
+
+#endif /* ifdef ENABLE_DEBUG */
\ No newline at end of file