diff --git a/Señal SOS con Arduino.txt b/Señal SOS con Arduino.txt
new file mode 100644
index 0000000..f6418fb
--- /dev/null
+++ b/Señal SOS con Arduino.txt	
@@ -0,0 +1,32 @@
+int led = 12;
+
+void setup(){
+	pinMode (led, OUTPUT);
+}
+void loop(){
+  //Letra S
+for (int x=0; x<3; x++){
+  	digitalWrite(led, HIGH);
+	delay(150);
+    digitalWrite(led, LOW);
+  	delay(200);
+}
+delay(300);
+  //letra O
+	for (int x=0; x<3; x++){
+	digitalWrite(led, HIGH);
+	delay(450);
+	digitalWrite(led, LOW);
+	delay(200);
+}
+delay(150);
+  //Letra S
+  	for (int x=0; x<3; x++){
+  	digitalWrite(led, HIGH);
+	delay(150);
+    digitalWrite(led, LOW);
+  	delay(200);
+}
+//espera para volver a comenzar
+delay(2500);
+}
\ No newline at end of file