diff --git a/project/motor.c b/project/motor.c
index eb14928..e90bd61 100755
--- a/project/motor.c
+++ b/project/motor.c
@@ -5,10 +5,10 @@
 #include<string.h>
 #include "gpio.h"
 
-#define PIN_MOTOR1_FORWARD "20"
-#define PIN_MOTOR1_REVERSE "13"
-#define PIN_MOTOR2_FORWARD "19"
-#define PIN_MOTOR2_REVERSE "26"
+#define PIN_MOTOR_RECHTS_FORWARD "20"
+#define PIN_MOTOR_RECHTS_REVERSE "13"
+#define PIN_MOTOR_LINKS_REVERSE "19"
+#define PIN_MOTOR_LINKS_FORWARD "26"
 
 #define MOTOR_ON 1
 #define MOTOR_OFF 0
@@ -19,16 +19,16 @@ void forward(int motorNumber)
 {
 	if(motorNumber == 1)
 	{
-		writeOutput(PIN_MOTOR1_FORWARD, MOTOR_ON);		
+		writeOutput(PIN_MOTOR_RECHTS_FORWARD, MOTOR_ON);		
 	}
 	else if(motorNumber == 2)
 	{
-		writeOutput(PIN_MOTOR2_FORWARD, MOTOR_ON);
+		writeOutput(PIN_MOTOR_LINKS_FORWARD, MOTOR_ON);
 	}
 	else if(motorNumber == 3)
 	{
-		writeOutput(PIN_MOTOR1_FORWARD, MOTOR_ON);
-		writeOutput(PIN_MOTOR2_FORWARD, MOTOR_ON);
+		writeOutput(PIN_MOTOR_RECHTS_FORWARD, MOTOR_ON);
+		writeOutput(PIN_MOTOR_LINKS_FORWARD, MOTOR_ON);
 	}		
 }
 
@@ -36,48 +36,50 @@ void reverse(int motorNumber)
 {
 	if(motorNumber == 1)
 	{
-		writeOutput(PIN_MOTOR1_REVERSE, MOTOR_ON);
+		writeOutput(PIN_MOTOR_RECHTS_REVERSE, MOTOR_ON);
 	}
 	else if(motorNumber == 2)
 	{
-		writeOutput(PIN_MOTOR2_REVERSE, MOTOR_ON);
+		writeOutput(PIN_MOTOR_LINKS_REVERSE, MOTOR_ON);
 	}
 	else if(motorNumber == 3)
 	{
-		writeOutput(PIN_MOTOR1_REVERSE, MOTOR_ON);
-		writeOutput(PIN_MOTOR2_REVERSE, MOTOR_ON);
+		writeOutput(PIN_MOTOR_RECHTS_REVERSE, MOTOR_ON);
+		writeOutput(PIN_MOTOR_LINKS_REVERSE, MOTOR_ON);
 	}
 }
 
 int main(int argc, char* argv[])
 {
-	registerOutput(PIN_MOTOR1_FORWARD);
-	registerOutput(PIN_MOTOR1_REVERSE);
-	registerOutput(PIN_MOTOR2_FORWARD);
-	registerOutput(PIN_MOTOR2_REVERSE);
-	if(strcmp(argv[1],"1")==0)
+	registerOutput(PIN_MOTOR_RECHTS_FORWARD);
+	registerOutput(PIN_MOTOR_RECHTS_REVERSE);
+	registerOutput(PIN_MOTOR_LINKS_FORWARD);
+	registerOutput(PIN_MOTOR_LINKS_REVERSE);
+	if(argc > 0)
 	{
-		forward(1);
-	} 
-	else if(strcmp(argv[1],"2")==0)
-	{
-		forward(2);
-	} 
-	else if(strcmp(argv[1],"3")==0)
-	{
-		reverse(1);
-	} 
-	else if(strcmp(argv[1],"4")==0)
-	{
-		reverse(2);
-	} 
-	else if(strcmp(argv[1],"0")==0)
-	{
-		freePin(PIN_MOTOR1_FORWARD);
-		freePin(PIN_MOTOR1_REVERSE);
-		freePin(PIN_MOTOR2_FORWARD);
-		freePin(PIN_MOTOR2_REVERSE);
+		if(strcmp(argv[1],"1")==0)
+		{
+			forward(1);
+		} 
+		else if(strcmp(argv[1],"2")==0)
+		{
+			forward(2);
+		} 
+		else if(strcmp(argv[1],"3")==0)
+		{
+			reverse(1);
+		} 
+		else if(strcmp(argv[1],"4")==0)
+		{
+			reverse(2);
+		} 
+		else if(strcmp(argv[1],"0")==0)
+		{
+			freePin(PIN_MOTOR_RECHTS_FORWARD);
+			freePin(PIN_MOTOR_RECHTS_REVERSE);
+			freePin(PIN_MOTOR_LINKS_FORWARD);
+			freePin(PIN_MOTOR_LINKS_REVERSE);
+		}
 	}
-	
 	return 0;
 }