diff --git a/examples/projects/Arduino/button/platformio.ini b/examples/projects/Arduino/button/platformio.ini
index 1ce8c45dd..64af7d27f 100644
--- a/examples/projects/Arduino/button/platformio.ini
+++ b/examples/projects/Arduino/button/platformio.ini
@@ -24,7 +24,7 @@
 default_envs = zero
 
 [env]
-lib_extra_dirs = 
+lib_extra_dirs =
     $PROJECT_DIR/../../../../../
     $PROJECT_DIR/../../../../network/
 lib_ldf_mode =off
@@ -34,17 +34,15 @@ build_unflags =  -Os
 build_flags =
     -O1
     -include node_config.h
-    -D LUOSHAL=ATSAMD21_ARDUINO
+    -D LUOSHAL=ARDUINO
+    -D SERIAL_COM_DEFAULTBAUDRATE=115200
 lib_deps =
     luos_engine@^3.0.0
-    robus_network
+    serial_network
     Button
 
-
 [env:zero]
 board = mkrzero
-platform_packages = framework-arduino-samd@https://github.com/Luos-io/Arduino_core.git
-
 
 [env:seed]
 board = seeed_xiao
diff --git a/examples/projects/Arduino/button/src/Button.cpp b/examples/projects/Arduino/button/src/Button.cpp
index e6a55c41d..489371785 100644
--- a/examples/projects/Arduino/button/src/Button.cpp
+++ b/examples/projects/Arduino/button/src/Button.cpp
@@ -6,7 +6,7 @@ extern "C"
 #endif
 
 #include "luos_engine.h"
-#include "robus_network.h"
+#include "serial_network.h"
 #include "button.h"
 
 #ifdef __cplusplus
@@ -21,7 +21,7 @@ extern "C"
 void setup()
 {
     Luos_Init();
-    Robus_Init();
+    Serial_Init();
     Button_Init();
 }
 /******************************************************************************
@@ -32,5 +32,6 @@ void setup()
 void loop()
 {
     Luos_Loop();
+    Serial_Loop();
     Button_Loop();
 }
diff --git a/examples/projects/Arduino/led/lib/led/led.h b/examples/projects/Arduino/led/lib/led/led.h
index e606ea77c..64026325c 100644
--- a/examples/projects/Arduino/led/lib/led/led.h
+++ b/examples/projects/Arduino/led/lib/led/led.h
@@ -8,7 +8,6 @@
 #define LED_H
 
 #include "luos_engine.h"
-#include "robus_network.h"
 
 /*******************************************************************************
  * Definitions
diff --git a/examples/projects/Arduino/led/platformio.ini b/examples/projects/Arduino/led/platformio.ini
index 86a753ab2..a380de2e2 100644
--- a/examples/projects/Arduino/led/platformio.ini
+++ b/examples/projects/Arduino/led/platformio.ini
@@ -35,15 +35,16 @@ build_flags =
     -O1
     -include node_config.h
     -D LUOSHAL=ATSAMD21_ARDUINO
+    -D SERIALHAL=ARDUINO
 lib_deps =
     luos_engine@^3.0.0
-    robus_network
+    serial_network
     Led
 
 
 [env:zero]
 board = mkrzero
-platform_packages = framework-arduino-samd@https://github.com/Luos-io/Arduino_core.git
+; platform_packages = framework-arduino-samd@https://github.com/Luos-io/Arduino_core.git
 
 
 [env:seed]
diff --git a/examples/projects/Arduino/led/src/led.cpp b/examples/projects/Arduino/led/src/led.cpp
index b005406a1..57cfad0ba 100644
--- a/examples/projects/Arduino/led/src/led.cpp
+++ b/examples/projects/Arduino/led/src/led.cpp
@@ -6,7 +6,7 @@ extern "C"
 #endif
 
 #include "luos_engine.h"
-#include "robus_network.h"
+#include "serial_network.h"
 #include "led.h"
 
 #ifdef __cplusplus
@@ -21,7 +21,7 @@ extern "C"
 void setup()
 {
     Luos_Init();
-    Robus_Init();
+    Serial_Init();
     Led_Init();
 }
 /******************************************************************************
@@ -32,5 +32,6 @@ void setup()
 void loop()
 {
     Luos_Loop();
+    Serial_Loop();
     Led_Loop();
 }
diff --git a/network/serial_network/HAL/ARDUINO/serial_network_hal.cpp b/network/serial_network/HAL/ARDUINO/serial_network_hal.cpp
index a29ceb9c2..e8d63d3a0 100644
--- a/network/serial_network/HAL/ARDUINO/serial_network_hal.cpp
+++ b/network/serial_network/HAL/ARDUINO/serial_network_hal.cpp
@@ -34,6 +34,8 @@ extern "C"
 void SerialHAL_Init(uint8_t *rx_buffer, uint32_t buffer_size)
 {
     Serial.begin(SERIAL_COM_DEFAULTBAUDRATE);
+    pinMode(LED_BUILTIN, OUTPUT);
+    digitalWrite(LED_BUILTIN, LOW);
 }
 
 /******************************************************************************
@@ -46,8 +48,10 @@ void SerialHAL_Loop(void)
     uint8_t data = 0;
     while (Serial.available() > 0)
     {
-        data = Serial.read();
+        digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
+        data = Serial.read();            // say what you got:
         Serial_ReceptionAdd(&data, 1);
+        digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
     }
 }
 
diff --git a/network/serial_network/HAL/NATIVE/serial_network_hal.c b/network/serial_network/HAL/NATIVE/serial_network_hal.c
index 0d63a6ea1..52d26b14f 100644
--- a/network/serial_network/HAL/NATIVE/serial_network_hal.c
+++ b/network/serial_network/HAL/NATIVE/serial_network_hal.c
@@ -168,6 +168,7 @@ void SerialHAL_Init(uint8_t *rx_buffer, uint32_t buffer_size)
         LUOS_ASSERT(0);
     }
 #endif
+    sleep(2);
 }
 
 /******************************************************************************