diff --git a/motor.ino b/motor.ino
index 8226024..0a5c4f8 100644
--- a/motor.ino
+++ b/motor.ino
@@ -1,20 +1,37 @@
-int pushButton = 2;
+int recv = 0;
 
-// the transistor which controls the motor will be attached to digital pin 9
-int motorControl = 3;
+// 0 FORWARD
+// 1 BACKWARD
+// 2 LEFT
+// 3 RIGHT
 
-// the setup routine runs once when you press reset:
 void setup() {
-  // make the pushbutton's pin an input:
-  pinMode(pushButton, INPUT);
-
-  // make the transistor's pin an output:
-  pinMode(motorControl, OUTPUT);  
+  Serial.begin(115200);  //initial the Serial
 }
 
-// the loop routine runs over and over again forever:
 void loop() {
+  
+  if (Serial.available())  {
 
-  analogWrite(motorControl, 0);
- 
+      switch (Serial.read())
+      {
+        case 0:
+          Serial.println("MOVING FORWARD");
+          break;
+
+        case 1:
+          Serial.println("MOVING BACKWARD");
+          break;
+
+        case 2:
+          Serial.println("MOVING LEFT");
+          break;
+        case 3:
+          Serial.println("MOVING RIGHT");
+          break;
+        default:
+          Serial.println("INVALID INSTRUCTION");
+      }
+
+  }
 }