Respond to commands

gistfile1.ino

void loop()
{
  //turn on the LED if the TCP socket is open
  if (client.connected()) {
    digitalWrite(ledPin, HIGH);
  }
  else {
    digitalWrite(ledPin, LOW);
  }
  
  //check for incoming data over TCP
  if (client.available()) {
    char c = client.read();
   
    //command handler (for dialpad digits)
    if (c == '2') {
      moveForward();
      client.print("forward"); 
    }
    else if (c == '4') {
      turnLeft();
      client.print("left");
    }
    else if (c == '6') {
      turnRight();
      client.print("right");
    }
    else if (c == '8') {
      moveBackward();
      client.print("back"); 
    }
    else if (c == '0') {
      stopMovement();
      client.print("stopped"); 
    }
  }
}