diff --git a/State machines Tutorial/Part 1/TwoStateMachines/TwoStateMachines.ino b/State machines Tutorial/Part 1/TwoStateMachines/TwoStateMachines.ino
index ea3bfa3..e36a371 100644
--- a/State machines Tutorial/Part 1/TwoStateMachines/TwoStateMachines.ino	
+++ b/State machines Tutorial/Part 1/TwoStateMachines/TwoStateMachines.ino	
@@ -1,51 +1,94 @@
 /*
  TwoStateMachines.ino
  Author: Jacques Bellavance
+ Minor Fixes: Mikel Diez (Arraiz)
  Released: October 13, 2017
            under GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 b
 
  This code is to demonstrate the use of state machines in an Arduino sketch.
  It is fully explained in the tutorial: State machine with Arduino (Part 1)
 */
-
-
-enum LedStates{ON, OFF};
-LedStates ledState = ON;
+#define WANTED_DELAY 2000
+enum LedStates { RESET,
+                 ON,
+                 OFF };
+LedStates ledState = OFF;
 byte ledPin = 13;
 
-enum SwitchStates {IS_OPEN, IS_RISING, IS_CLOSED, IS_FALLING};
+enum SwitchStates { IS_OPEN,
+                    IS_RISING,
+                    IS_CLOSED,
+                    IS_FALLING };
 SwitchStates switchState = IS_OPEN;
 byte switchPin = 10;
 
-enum SwitchModes {PULLUP, PULLDOWN};
+enum SwitchModes { PULLUP,
+                   PULLDOWN };
 SwitchModes switchMode = PULLUP;
 
+unsigned long chrono = millis();
+
 void toggleMachine() {
-  switch (ledState) {
-    case OFF: { digitalWrite(ledPin, HIGH); ledState = ON;  break; }
-    case ON : { digitalWrite(ledPin, LOW);  ledState = OFF; break; }
-  }
+    chrono = millis();
+    Serial.println("Entered the LED");
+    switch (ledState) {
+        case OFF: {
+            Serial.println("OFF STATE");
+            while (millis() - chrono < WANTED_DELAY) {
+                digitalWrite(LED_BUILTIN, HIGH);
+                Serial.print("Elapsed time:");
+                Serial.println(millis() - chrono);
+            }
+            chrono = millis();
+            ledState = ON;
+        }
+        case ON: {
+            Serial.println("ON STATE");
+            while (millis() - chrono < WANTED_DELAY) {
+                digitalWrite(LED_BUILTIN, LOW);
+                Serial.print("Elapsed time : ");
+                Serial.println(millis() - chrono);
+            }
+            chrono = millis();
+            ledState = OFF;
+        }
+    }
 }
 
 void switchMachine() {
-  byte pinIs = digitalRead(switchPin);
-  if (switchMode == PULLUP) pinIs = !pinIs;
-  switch (switchState) {
-    case IS_OPEN:    { if(pinIs == HIGH) switchState = IS_RISING;  break; }
-    case IS_RISING:  {                   switchState = IS_CLOSED;  break; }
-    case IS_CLOSED:  { if(pinIs == LOW)  switchState = IS_FALLING; break; }
-    case IS_FALLING: { toggleMachine();  switchState = IS_OPEN;    break; }
-  }
+    byte pinIs = digitalRead(switchPin);
+    if (switchMode == PULLUP) pinIs = !pinIs;
+    switch (switchState) {
+        case IS_OPEN: {
+            if (pinIs == HIGH) switchState = IS_RISING;
+            break;
+        }
+        case IS_RISING: {
+            switchState = IS_CLOSED;
+            break;
+        }
+        case IS_CLOSED: {
+            if (pinIs == LOW) switchState = IS_FALLING;
+            break;
+        }
+        case IS_FALLING: {
+            toggleMachine();
+            switchState = IS_OPEN;
+            break;
+        }
+    }
 }
 
 void setup() {
-  pinMode(ledPin, OUTPUT);
-  digitalWrite(ledPin, HIGH);
-  if (switchMode == PULLDOWN) pinMode(switchPin, INPUT);
-  else                        pinMode(switchPin, INPUT_PULLUP);
+    Serial.begin(9600);
+    pinMode(ledPin, OUTPUT);
+    digitalWrite(ledPin, HIGH);
+    if (switchMode == PULLDOWN)
+        pinMode(switchPin, INPUT);
+    else
+        pinMode(switchPin, INPUT_PULLUP);
 }
 
 void loop() {
-  switchMachine();
+    switchMachine();
 }
-
diff --git a/State machines Tutorial/Part 1/TwoStateMachinesDebounced/TwoStateMachinesDebounced.ino b/State machines Tutorial/Part 1/TwoStateMachinesDebounced/TwoStateMachinesDebounced.ino
index 4c7eb70..9e38e93 100644
--- a/State machines Tutorial/Part 1/TwoStateMachinesDebounced/TwoStateMachinesDebounced.ino	
+++ b/State machines Tutorial/Part 1/TwoStateMachinesDebounced/TwoStateMachinesDebounced.ino	
@@ -1,6 +1,7 @@
 /*
  TwoStateMachinesDebounced.ino
- Author: Jacques Bellavance
+ Author: Jacques Bellavance.
+ Minor Fixes: Mikel Diez (Arraiz)
  Released: October 13, 2017
            under GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 b
 
@@ -9,45 +10,90 @@
 */
 
 #include <EdgeDebounceLite.h>
+
 EdgeDebounceLite debounce;
 
-enum LedStates{ON, OFF};
-LedStates ledState = ON;
+#define WANTED_DELAY 2000
+enum LedStates { RESET,
+                 ON,
+                 OFF };
+LedStates ledState = OFF;
 byte ledPin = 13;
 
-enum SwitchStates {IS_OPEN, IS_RISING, IS_CLOSED, IS_FALLING};
+enum SwitchStates { IS_OPEN,
+                    IS_RISING,
+                    IS_CLOSED,
+                    IS_FALLING };
 SwitchStates switchState = IS_OPEN;
 byte switchPin = 10;
 
-enum SwitchModes {PULLUP, PULLDOWN};
+enum SwitchModes { PULLUP,
+                   PULLDOWN };
 SwitchModes switchMode = PULLUP;
 
+unsigned long chrono = millis();
+
 void toggleMachine() {
-  switch (ledState) {
-    case OFF: { digitalWrite(ledPin, HIGH); ledState = ON;  break; }
-    case ON : { digitalWrite(ledPin, LOW);  ledState = OFF; break; }
-  }
+    chrono = millis();
+    Serial.println("Entered the LED");
+    switch (ledState) {
+        case OFF: {
+            Serial.println("OFF STATE");
+            while (millis() - chrono < WANTED_DELAY) {
+                digitalWrite(LED_BUILTIN, HIGH);
+                Serial.print("Elapsed time:");
+                Serial.println(millis() - chrono);
+            }
+            chrono = millis();
+            ledState = ON;
+        }
+        case ON: {
+            Serial.println("ON STATE");
+            while (millis() - chrono < WANTED_DELAY) {
+                digitalWrite(LED_BUILTIN, LOW);
+                Serial.print("Elapsed time : ");
+                Serial.println(millis() - chrono);
+            }
+            chrono = millis();
+            ledState = OFF;
+        }
+    }
 }
 
 void switchMachine() {
-  byte pinIs = debounce.pin(switchPin);
-  if (switchMode == PULLUP) pinIs = !pinIs;
-  switch (switchState) {
-    case IS_OPEN:    { if(pinIs == HIGH) switchState = IS_RISING;  break; }
-    case IS_RISING:  {                   switchState = IS_CLOSED;  break; }
-    case IS_CLOSED:  { if(pinIs == LOW)  switchState = IS_FALLING; break; }
-    case IS_FALLING: { toggleMachine();  switchState = IS_OPEN;    break; }
-  }
+    byte pinIs = debounce.pin(switchPin);
+    if (switchMode == PULLUP) pinIs = !pinIs;
+    switch (switchState) {
+        case IS_OPEN: {
+            if (pinIs == HIGH) switchState = IS_RISING;
+            break;
+        }
+        case IS_RISING: {
+            switchState = IS_CLOSED;
+            break;
+        }
+        case IS_CLOSED: {
+            if (pinIs == LOW) switchState = IS_FALLING;
+            break;
+        }
+        case IS_FALLING: {
+            toggleMachine();
+            switchState = IS_OPEN;
+            break;
+        }
+    }
 }
 
 void setup() {
-  pinMode(ledPin, OUTPUT);
-  digitalWrite(ledPin, HIGH);
-  if (switchMode == PULLDOWN) pinMode(switchPin, INPUT);
-  else                        pinMode(switchPin, INPUT_PULLUP);
+    Serial.begin(9600);
+    pinMode(ledPin, OUTPUT);
+    digitalWrite(ledPin, HIGH);
+    if (switchMode == PULLDOWN)
+        pinMode(switchPin, INPUT);
+    else
+        pinMode(switchPin, INPUT_PULLUP);
 }
 
 void loop() {
-  switchMachine();
+    switchMachine();
 }
-