diff --git a/Examples/1_LoRa_Sensor/defaults.h b/Examples/1_LoRa_Sensor/defaults.h
new file mode 100644
index 0000000..db56db4
--- /dev/null
+++ b/Examples/1_LoRa_Sensor/defaults.h
@@ -0,0 +1,45 @@
+#define UNIT_MAC     0xFC  // THIS UNIT
+#define ESPNOW1_PEER  0xFD  // ESPNOW1 Address 
+#define ESPNOW2_PEER  0xFE  // ESPNOW2 Address
+#define LORA1_PEER    0xFD  // LoRa1 Address
+#define LORA2_PEER    0xFE  // LoRa2 Address
+
+#define ESPNOW1_DELAY  0
+#define ESPNOW2_DELAY  0
+#define ESPNOWG_DELAY  0
+#define SERIAL_DELAY   0
+#define MQTT_DELAY     0
+#define LORAG_DELAY    1000
+#define LORA1_DELAY    1000
+#define LORA2_DELAY    1000
+
+#define ESPNOW1_ACT    
+#define ESPNOW2_ACT    
+#define ESPNOWG_ACT    
+#define SERIAL_ACT     
+#define MQTT_ACT       
+#define LORAG_ACT   
+#define LORA1_ACT 
+#define LORA2_ACT     
+
+//#define RXD2 21
+//#define TXD2 22
+
+//#define USE_LORA      
+#define SCK 5
+#define MISO 19
+#define MOSI 27
+#define SS 18
+#define RST 14
+#define DIO0 26
+
+//433E6 for Asia
+//866E6 for Europe
+//915E6 for North America
+#define BAND 915E6
+
+//#define USE_LED
+#define LED_PIN    32
+#define NUM_LEDS    4
+
+#define MAC_PREFIX  0xAA, 0xBB, 0xCC, 0xDD, 0xEE
diff --git a/Examples/1_LoRa_Sensor/fdrs_sensor.h b/Examples/1_LoRa_Sensor/fdrs_sensor.h
index 876e436..59484c8 100644
--- a/Examples/1_LoRa_Sensor/fdrs_sensor.h
+++ b/Examples/1_LoRa_Sensor/fdrs_sensor.h
@@ -23,23 +23,14 @@
 #define RST 14
 #define DIO0 26
 
-
+#include "defaults.h"
 #ifdef CREDENTIALS
 #include <credentials.h>
 #define WIFI_NET mySSID
 #define WIFI_PASS myPASSWORD
 #define MQTT_ADDR MQTT_BROKER
 #define BAND myBAND
-#define SF mySF 
-#else
-#define WIFI_NET "Your SSID"
-#define WIFI_PASS "Password"
-#define MQTT_ADDR "192.168.0.8"
-
-//433E6 for Asia
-//866E6 for Europe
-//915E6 for North America
-#define BAND 915E6
+#define SF mySF
 #endif
 
 typedef struct __attribute__((packed)) DataReading {
diff --git a/Examples/2_ESPNOW_Sensor/defaults.h b/Examples/2_ESPNOW_Sensor/defaults.h
new file mode 100644
index 0000000..db56db4
--- /dev/null
+++ b/Examples/2_ESPNOW_Sensor/defaults.h
@@ -0,0 +1,45 @@
+#define UNIT_MAC     0xFC  // THIS UNIT
+#define ESPNOW1_PEER  0xFD  // ESPNOW1 Address 
+#define ESPNOW2_PEER  0xFE  // ESPNOW2 Address
+#define LORA1_PEER    0xFD  // LoRa1 Address
+#define LORA2_PEER    0xFE  // LoRa2 Address
+
+#define ESPNOW1_DELAY  0
+#define ESPNOW2_DELAY  0
+#define ESPNOWG_DELAY  0
+#define SERIAL_DELAY   0
+#define MQTT_DELAY     0
+#define LORAG_DELAY    1000
+#define LORA1_DELAY    1000
+#define LORA2_DELAY    1000
+
+#define ESPNOW1_ACT    
+#define ESPNOW2_ACT    
+#define ESPNOWG_ACT    
+#define SERIAL_ACT     
+#define MQTT_ACT       
+#define LORAG_ACT   
+#define LORA1_ACT 
+#define LORA2_ACT     
+
+//#define RXD2 21
+//#define TXD2 22
+
+//#define USE_LORA      
+#define SCK 5
+#define MISO 19
+#define MOSI 27
+#define SS 18
+#define RST 14
+#define DIO0 26
+
+//433E6 for Asia
+//866E6 for Europe
+//915E6 for North America
+#define BAND 915E6
+
+//#define USE_LED
+#define LED_PIN    32
+#define NUM_LEDS    4
+
+#define MAC_PREFIX  0xAA, 0xBB, 0xCC, 0xDD, 0xEE
diff --git a/Examples/2_ESPNOW_Sensor/fdrs_sensor.h b/Examples/2_ESPNOW_Sensor/fdrs_sensor.h
index b3bb7fe..35ce276 100644
--- a/Examples/2_ESPNOW_Sensor/fdrs_sensor.h
+++ b/Examples/2_ESPNOW_Sensor/fdrs_sensor.h
@@ -22,21 +22,13 @@
 #define RST 14
 #define DIO0 26
 
+#include "defaults.h"
 #ifdef CREDENTIALS
 #include <credentials.h>
 #define WIFI_NET mySSID
 #define WIFI_PASS myPASSWORD
 #define MQTT_ADDR MQTT_BROKER
 #define BAND myBAND
-#else
-#define WIFI_NET "Your SSID"
-#define WIFI_PASS "Password"
-#define MQTT_ADDR "192.168.0.8"
-
-//433E6 for Asia
-//866E6 for Europe
-//915E6 for North America
-#define BAND 915E6
 #endif
 
 typedef struct __attribute__((packed)) DataReading {
diff --git a/Examples/3_ESPNOW_Gateway/defaults.h b/Examples/3_ESPNOW_Gateway/defaults.h
index 1e788c6..3f3f180 100644
--- a/Examples/3_ESPNOW_Gateway/defaults.h
+++ b/Examples/3_ESPNOW_Gateway/defaults.h
@@ -29,6 +29,11 @@
 #define WIFI_PASS "Password"
 #define MQTT_ADDR "192.168.0.8"
 
+//433E6 for Asia
+//866E6 for Europe
+//915E6 for North America
+#define BAND 915E6
+
 //#define USE_LORA      
 #define SCK 5
 #define MISO 19
diff --git a/Examples/3_ESPNOW_Gateway/fdrs_config.h b/Examples/3_ESPNOW_Gateway/fdrs_config.h
index f4c9d28..5766ca2 100644
--- a/Examples/3_ESPNOW_Gateway/fdrs_config.h
+++ b/Examples/3_ESPNOW_Gateway/fdrs_config.h
@@ -35,19 +35,11 @@
 #define RST 14
 #define DIO0 26
 
+// default.h values are overwritten by the #defines of credentials.h files in the library folder
 #ifdef CREDENTIALS
 #include <credentials.h>
 #define WIFI_NET mySSID
 #define WIFI_PASS myPASSWORD
 #define MQTT_ADDR MQTT_BROKER
 #define BAND myBAND
-#else
-#define WIFI_NET "Your SSID"
-#define WIFI_PASS "Password"
-#define MQTT_ADDR "192.168.0.8"
-
-//433E6 for Asia
-//866E6 for Europe
-//915E6 for North America
-#define BAND 915E6
 #endif
diff --git a/Examples/4_UART_Gateway/defaults.h b/Examples/4_UART_Gateway/defaults.h
index d0b22a1..e91d8ea 100644
--- a/Examples/4_UART_Gateway/defaults.h
+++ b/Examples/4_UART_Gateway/defaults.h
@@ -33,6 +33,11 @@
 #define RST 14
 #define DIO0 26
 
+//433E6 for Asia
+//866E6 for Europe
+//915E6 for North America
+#define BAND 915E6
+
 //#define USE_LED
 #define LED_PIN    32
 #define NUM_LEDS    4
diff --git a/Examples/4_UART_Gateway/fdrs_config.h b/Examples/4_UART_Gateway/fdrs_config.h
index 189c88d..27221aa 100644
--- a/Examples/4_UART_Gateway/fdrs_config.h
+++ b/Examples/4_UART_Gateway/fdrs_config.h
@@ -35,23 +35,12 @@
 #define RST 14
 #define DIO0 26
 
-//WiFi Configuration -- Needed only if is using MQTT
-
-
+// default.h values are overwritten by the #defines of credentials.h files in the library folder
 #ifdef CREDENTIALS
 #include <credentials.h>
 #define WIFI_NET mySSID
 #define WIFI_PASS myPASSWORD
 #define MQTT_ADDR MQTT_BROKER
 #define BAND myBAND
-#define SF mySF 
-#else
-#define WIFI_NET "Your SSID"
-#define WIFI_PASS "Password"
-#define MQTT_ADDR "192.168.0.8"
-
-//433E6 for Asia
-//866E6 for Europe
-//915E6 for North America
-#define BAND 915E6
+#define SF mySF
 #endif
diff --git a/Examples/5_MQTT_Gateway/fdrs_config.h b/Examples/5_MQTT_Gateway/fdrs_config.h
index 6e4cafa..52895ae 100644
--- a/Examples/5_MQTT_Gateway/fdrs_config.h
+++ b/Examples/5_MQTT_Gateway/fdrs_config.h
@@ -36,19 +36,11 @@
 #define DIO0 26
 
 
+// default.h values are overwritten by the #defines of credentials.h files in the library folder
 #ifdef CREDENTIALS
 #include <credentials.h>
 #define WIFI_NET mySSID
 #define WIFI_PASS myPASSWORD
 #define MQTT_ADDR MQTT_BROKER
 #define BAND myBAND
-#else
-#define WIFI_NET "Your SSID"
-#define WIFI_PASS "Password"
-#define MQTT_ADDR "192.168.0.8"
-
-//433E6 for Asia
-//866E6 for Europe
-//915E6 for North America
-#define BAND 915E6
 #endif