diff --git a/LiveData.cpp b/LiveData.cpp
index a30570e..ca13483 100644
--- a/LiveData.cpp
+++ b/LiveData.cpp
@@ -1,6 +1,13 @@
 #include "LiveData.h"
 #include "menu.h"
 
+/**
+ * Debug level
+ */
+void debug(String msg, uint8_t debugLevel) {
+  Serial.println(msg);
+}
+
 /**
    Init params with default values
 */
diff --git a/LiveData.h b/LiveData.h
index d416f5f..1f57de0 100644
--- a/LiveData.h
+++ b/LiveData.h
@@ -20,7 +20,7 @@
 #define CAR_BMW_I3_2014           7
 #define CAR_DEBUG_OBD2_KIA        999
 
-// 
+// COMM TYPE
 #define COMM_TYPE_OBD2BLE4  0
 #define COMM_TYPE_OBD2CAN   1
 #define COMM_TYPE_OBD2BT3   2
@@ -34,6 +34,12 @@
 #define SCREEN_CHARGING 5
 #define SCREEN_SOC10  6
 
+// DEBUG LEVEL
+#define DEBUG_INFO    0
+#define DEBUG_COMM    1
+#define DEBUG_GPS     2 
+#define DEBUG_SDCARD  3
+
 // 
 #define MONTH_SEC     2678400
 
@@ -209,8 +215,10 @@ typedef struct {
   //  
 } SETTINGS_STRUC;
 
+// Debug functions
+void debug(String msg, uint8_t debugLevel = DEBUG_INFO);
 
-//
+// LiveData class
 class LiveData {
   protected:
   public:
diff --git a/evDash.ino b/evDash.ino
index 7298696..e2cdabf 100644
--- a/evDash.ino
+++ b/evDash.ino
@@ -65,8 +65,7 @@ void setup(void) {
 
   // Serial console, init structures
   Serial.begin(115200);
-  Serial.println("");
-  Serial.println("Booting device...");
+  debug("\nBooting device...");
 
   // Init settings/params
   liveData = new LiveData();
@@ -74,7 +73,7 @@ void setup(void) {
 
   // Turn off serial console
   if (liveData->settings.serialConsolePort = 255) {
-    Serial.println("Serial console disabled...");
+    debug("Serial console disabled...");
     Serial.flush();
     Serial.end();
   }