diff --git a/examples/ArduinoIoTCloud-Advanced/ArduinoIoTCloud-Advanced.ino b/examples/ArduinoIoTCloud-Advanced/ArduinoIoTCloud-Advanced.ino
index 4f45a395d..095850406 100644
--- a/examples/ArduinoIoTCloud-Advanced/ArduinoIoTCloud-Advanced.ino
+++ b/examples/ArduinoIoTCloud-Advanced/ArduinoIoTCloud-Advanced.ino
@@ -15,7 +15,7 @@
 void setup() {
   /* Initialize serial and wait up to 5 seconds for port to open */
   Serial.begin(9600);
-  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime > 5000); ) { }
+  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
   /* This function takes care of connecting your sketch variables to the ArduinoIoTCloud object */
   initProperties();
diff --git a/examples/ArduinoIoTCloud-Basic/ArduinoIoTCloud-Basic.ino b/examples/ArduinoIoTCloud-Basic/ArduinoIoTCloud-Basic.ino
index cb146900d..a37996b31 100644
--- a/examples/ArduinoIoTCloud-Basic/ArduinoIoTCloud-Basic.ino
+++ b/examples/ArduinoIoTCloud-Basic/ArduinoIoTCloud-Basic.ino
@@ -23,7 +23,7 @@ static int const LED_BUILTIN = 2;
 void setup() {
   /* Initialize serial and wait up to 5 seconds for port to open */
   Serial.begin(9600);
-  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime > 5000); ) { }
+  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
   /* Configure LED pin as an output */
   pinMode(LED_BUILTIN, OUTPUT);
diff --git a/examples/ArduinoIoTCloud-Callbacks/ArduinoIoTCloud-Callbacks.ino b/examples/ArduinoIoTCloud-Callbacks/ArduinoIoTCloud-Callbacks.ino
index c01153d9b..1d39a2f5a 100644
--- a/examples/ArduinoIoTCloud-Callbacks/ArduinoIoTCloud-Callbacks.ino
+++ b/examples/ArduinoIoTCloud-Callbacks/ArduinoIoTCloud-Callbacks.ino
@@ -8,7 +8,7 @@
 
   You don't need any specific Properties to be created in order to demonstrate these functionalities.
   Simply create a new Thing and give it 1 arbitrary Property.
-  Remember that the Thing ID needs to be configured in thingProperties.h 
+  Remember that the Thing ID needs to be configured in thingProperties.h
   These events can be very useful in particular cases, for instance to disable a peripheral
   or a connected sensor/actuator when no data connection is available, as well as to perform
   specific operations on connection or right after properties values are synchronised.
@@ -31,7 +31,7 @@
 void setup() {
   /* Initialize serial and wait up to 5 seconds for port to open */
   Serial.begin(9600);
-  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime > 5000); ) { }
+  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
   /* This function takes care of connecting your sketch variables to the ArduinoIoTCloud object */
   initProperties();
diff --git a/examples/ArduinoIoTCloud-DeferredOTA/ArduinoIoTCloud-DeferredOTA.ino b/examples/ArduinoIoTCloud-DeferredOTA/ArduinoIoTCloud-DeferredOTA.ino
index bbe58c373..52fc87312 100644
--- a/examples/ArduinoIoTCloud-DeferredOTA/ArduinoIoTCloud-DeferredOTA.ino
+++ b/examples/ArduinoIoTCloud-DeferredOTA/ArduinoIoTCloud-DeferredOTA.ino
@@ -39,7 +39,7 @@ bool ask_user_via_serial() {
   if (Serial.available()) {
     char c = Serial.read();
     if (c == 'y' || c == 'Y') {
-      return true;  
+      return true;
     }
   }
   return false;
@@ -56,7 +56,7 @@ bool onOTARequestCallback()
 void setup() {
   /* Initialize serial and wait up to 5 seconds for port to open */
   Serial.begin(9600);
-  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime > 5000); ) { }
+  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
   /* Configure LED pin as an output */
   pinMode(LED_BUILTIN, OUTPUT);
diff --git a/examples/ArduinoIoTCloud-Schedule/ArduinoIoTCloud-Schedule.ino b/examples/ArduinoIoTCloud-Schedule/ArduinoIoTCloud-Schedule.ino
index 9adb83378..1e8a30d0d 100644
--- a/examples/ArduinoIoTCloud-Schedule/ArduinoIoTCloud-Schedule.ino
+++ b/examples/ArduinoIoTCloud-Schedule/ArduinoIoTCloud-Schedule.ino
@@ -15,7 +15,7 @@ static int const LED_BUILTIN = 2;
 void setup() {
   /* Initialize the serial port and wait up to 5 seconds for a connection */
   Serial.begin(9600);
-  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime > 5000); ) { }
+  for(unsigned long const serialBeginTime = millis(); !Serial && (millis() - serialBeginTime <= 5000); ) { }
 
   /* Configure LED pin as an output */
   pinMode(LED_BUILTIN, OUTPUT);
@@ -206,7 +206,7 @@ void loop() {
   if(daily.isActive()) {
     Serial.println("Daily schedule is active");
   }
-  
+
   /* Activate LED when the weekly schedule is active */
   digitalWrite(LED_BUILTIN, weekly.isActive());
 
diff --git a/examples/utility/ArduinoIoTCloud_Travis_CI/ArduinoIoTCloud_Travis_CI.ino b/examples/utility/ArduinoIoTCloud_Travis_CI/ArduinoIoTCloud_Travis_CI.ino
index 575b55f49..4d478e065 100644
--- a/examples/utility/ArduinoIoTCloud_Travis_CI/ArduinoIoTCloud_Travis_CI.ino
+++ b/examples/utility/ArduinoIoTCloud_Travis_CI/ArduinoIoTCloud_Travis_CI.ino
@@ -18,7 +18,7 @@ void setup() {
 
   Serial.begin(9600);
   unsigned long serialBeginTime = millis();
-  while (!Serial && (millis() - serialBeginTime > 5000));
+  while (!Serial && (millis() - serialBeginTime <= 5000));
 
   Serial.println("Starting Arduino IoT Cloud Example");