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diff --git a/doc/Lesson 1 Make The Car Move/right_wheel_rotation/right_wheel_rotation.ino b/doc/Lesson 1 Make The Car Move/right_wheel_rotation/right_wheel_rotation.ino
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+++ b/doc/Lesson 1 Make The Car Move/right_wheel_rotation/right_wheel_rotation.ino
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+//www.elegoo.com
+//2016.09.12
+
+/*In1 connected to the 9 pin,
+ In2 connected to the 8 pin, ENA pin 10,*/
+int ENA=10;
+int IN1=9;
+int IN2=8;
+void setup()
+{
+ pinMode(IN1,OUTPUT);
+ pinMode(IN2,OUTPUT);
+ pinMode(ENA,OUTPUT);
+ digitalWrite(ENA,HIGH);
+}
+void loop()
+{
+ digitalWrite(IN1,LOW);
+ digitalWrite(IN2,HIGH); //Right wheel forward
+ delay(500);
+ digitalWrite(IN1,LOW);
+ digitalWrite(IN2,LOW); //Right wheel stop
+ delay(500);
+ digitalWrite(IN1,HIGH);
+ digitalWrite(IN2,LOW); //Right wheel back
+ delay(500);
+ digitalWrite(IN1,LOW);
+ digitalWrite(IN2,LOW); //Right wheel stop
+ delay(500);
+}
+