/*
Arduino Demo Software
Connect via either Arduino Serial Monitor or HyperTerminal
and you can control your robot via the W.A.S.D. keys.
Any other key will stop your robot in it's travels.

This example code is in the public domain.
*/
void setup(void){
Serial.begin(9600);
}
void loop(void){
while (Serial.available() < 1) {} // Wait until a character is received
char val = Serial.read();
switch(val){ // Perform an action depending on the command
case 'w'://Move Forward
forward();
break;

case 's'://Move Backwards
reverse();
break;

case 'a'://Turn Left
left();
break;

case 'd'://Turn Right
right();
break;

default:
halt();
break;
}
}
void forward() {
Serial.println("Forward");
analogWrite(11, 100);
analogWrite(6, 100);
}

void reverse() {
Serial.println("Reverse");
analogWrite(10, 100);
analogWrite(5, 100);
}

void halt() {
Serial.println("Stopped");
digitalWrite(11, LOW);
digitalWrite(10, LOW);
digitalWrite(6, LOW);
digitalWrite(5, LOW);
}

void left() {
Serial.println("Left");
digitalWrite(10, HIGH);
digitalWrite(6, HIGH);
}

void right() {
Serial.println("Right");
digitalWrite(11, HIGH);
digitalWrite(5, HIGH);
}