diff --git a/README.md b/README.md
index 10447bb..e5326d1 100644
--- a/README.md
+++ b/README.md
@@ -15,15 +15,15 @@ Implementaciones :
 - [Buzzers/Speakers](./buzzer/README.md)
 - [PWM](./pwm/README.md)
 - [Leds](./leds/README.md)
-  - [Led Dimmer](./leds/dimmer_led/dimmer_led.ino)  
-  - [Leds PWM](./leds/led_pwm/led_pwm.ino)  
+  - [Led PWM](./leds/led_pwm/led_pwm.ino)  
+  - [Led PWM2](./leds/led_pwm2/led_pwm2.ino)  
   - [Leds PWM 1](./leds/leds_pwm/leds_pwm.ino)  
   - [Leds PwM 2](./leds/leds_pwm2/leds_pwm2.ino)  
   - [Potenciomentro y Led](./leds/potenciomentro_led/potenciomentro_led.ino)  
+  - [Led Dimmer](./leds/dimmer_led/dimmer_led.ino)  
   - [RGB](./leds/rgb/rgb.ino)  
   - [RGB 2](./leds/rgb2/rgb2.ino)  
   - [RGB 3](./leds/rgb3/rgb3.ino)  
-  - [Semaforo](./leds/semaforo/semaforo.ino)  
   - [Serial Leds](./leds/serial_leds/serial_leds.ino)  
 - [Sensores](./sensores/README.md)
   - Temperatura y Humedad  
diff --git a/leds/README.md b/leds/README.md
index 363cba2..7690f0e 100644
--- a/leds/README.md
+++ b/leds/README.md
@@ -1,14 +1,13 @@
 ## Leds
 
-- [Led Dimmer](./dimmer_led/dimmer_led.ino)
-- [Leds PWM](./led_pwm/led_pwm.ino)
+- [Led PWM](./led_pwm/led_pwm.ino)
+- [Led PWM 2](./led_pwm2/led_pwm2.ino)
 - [Leds PWM 1](./leds_pwm/leds_pwm.ino)
 - [Leds PwM 2](./leds_pwm2/leds_pwm2.ino)
 - [Potenciomentro y Led](./potenciomentro_led/potenciomentro_led.ino)
+- [Led Dimmer](./dimmer_led/dimmer_led.ino)
 - [RGB](./rgb/rgb.ino)
 - [RGB 2](./rgb2/rgb2.ino)
 - [RGB 3](./rgb3/rgb3.ino)
-- [Semaforo](./semaforo/semaforo.ino)
 - [Serial Leds](./serial_leds/serial_leds.ino)
 
-
diff --git a/leds/led_pwm2/led_pwm2.ino b/leds/led_pwm2/led_pwm2.ino
new file mode 100755
index 0000000..49d7931
--- /dev/null
+++ b/leds/led_pwm2/led_pwm2.ino
@@ -0,0 +1,13 @@
+// La functión setup corre solo una vez al encender/reiniciar la placa
+void setup() {
+    // Inicializar pin digital como output.
+    pinMode(10, OUTPUT);
+}
+
+// La función loop corre una y otra vez, por siemre
+void loop() {
+  for (int i = 0; i <= 255; i++) {
+    analogWrite(10, i);
+    delay(10);             
+  }
+}
diff --git a/leds/semaforo/semaforo.ino b/leds/semaforo/semaforo.ino
deleted file mode 100755
index d5a6dae..0000000
--- a/leds/semaforo/semaforo.ino
+++ /dev/null
@@ -1,15 +0,0 @@
-
-// the setup function runs once when you press reset or power the board
-void setup() {
-// initialize digital pin LED_BUILTIN as an output.
-pinMode(10, OUTPUT);
-
-}
-
-// the loop function runs over and over again forever
-void loop() {
-  for (int i = 0; i <= 255; i++) {
-    analogWrite(10, i);
-    delay(10);             
-  }
-}
diff --git a/leds/serial_leds/serial_leds.ino b/leds/serial_leds/serial_leds.ino
index 482ad21..a8bbda1 100755
--- a/leds/serial_leds/serial_leds.ino
+++ b/leds/serial_leds/serial_leds.ino
@@ -1,42 +1,40 @@
-
-
 void setup() {
-  pinMode(2, OUTPUT);
-  pinMode(3, OUTPUT);
-  Serial.begin(9600);
+    pinMode(2, OUTPUT);
+    pinMode(3, OUTPUT);
+    Serial.begin(9600);
 }
 
 void ciclo1() {
-  int i=0;
-  while (i < 5) {
-    digitalWrite(3, LOW);
-    digitalWrite(2, HIGH);
-    delay(500);
-    digitalWrite(2, LOW);
-    digitalWrite(3, HIGH);
-    delay(500);
-    ++i;
-  }
-  apagaLeds();
+    int i=0;
+    while (i < 5) {
+        digitalWrite(3, LOW);
+        digitalWrite(2, HIGH);
+        delay(500);
+        digitalWrite(2, LOW);
+        digitalWrite(3, HIGH);
+        delay(500);
+        ++i;
+    }
+    apagaLeds();
 }
 
 void ciclo2() {
-  int j=0;
-  while (j < 5) {
-    digitalWrite(3, LOW);
-    digitalWrite(2, HIGH);
-    delay(50);
-    digitalWrite(2, LOW);
-    digitalWrite(2, HIGH);
-    delay(50);
-    digitalWrite(2, LOW);
-    digitalWrite(3, HIGH);
-    delay(50);
-    digitalWrite(3, LOW);
-    digitalWrite(3, HIGH);
-    ++j;
-  }
-  apagaLeds();
+    int j=0;
+    while (j < 5) {
+        digitalWrite(3, LOW);
+        digitalWrite(2, HIGH);
+        delay(50);
+        digitalWrite(2, LOW);
+        digitalWrite(2, HIGH);
+        delay(50);
+        digitalWrite(2, LOW);
+        digitalWrite(3, HIGH);
+        delay(50);
+        digitalWrite(3, LOW);
+        digitalWrite(3, HIGH);
+        ++j;
+    }
+    apagaLeds();
 }
 
 void apagaLeds() {
@@ -45,22 +43,22 @@ void apagaLeds() {
 }
 
 void loop() {
-  int serialCom;
-  if (Serial.available() > 0) {
-      serialCom = Serial.read();
-      Serial.print("Valor  Recibido : ");
-      Serial.println(serialCom);
-     switch (serialCom) {
-    case 49:
-      ciclo1();
-      break;
-    case 50:
-      ciclo2();
-      break;
-    default:
-      apagaLeds();
-  }
-  delay(100);
-  Serial.read();
-  }
-}
+    int serialCom;
+    if (Serial.available() > 0) {
+        serialCom = Serial.read();
+        Serial.print("Valor  Recibido : ");
+        Serial.println(serialCom);
+    switch (serialCom) {
+        case 49:
+            ciclo1();
+            break;
+        case 50:
+            ciclo2();
+            break;
+        default:
+            apagaLeds();
+    }
+    delay(100);
+    Serial.read();
+    }
+}