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/*
DC Motor example
  
This program drives a DC motor.
The motor is attached to PWM pins 5 and 6 of the Arduino.
  
If the button attached to A1 is pressed the motor should rotate clockwise,
while if the button attached to A2 is pressed motor should rotate counterclockwise.
  
The velocity is controlled by a trimmer connected to A2
  
Author: Arturo Guadalupi <a.guadalupi@arduino.cc>
*/

void setup() {
  pinMode(A0, INPUT);
  pinMode(A1, INPUT);
  pinMode(A2, INPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  Serial.begin(9600);
}

int val;
int temp;

void loop() {

  if (digitalRead(A1) == LOW)
  {
    val = analogRead(A0);
    clockwise();
  }
  if (digitalRead(A2) == LOW)
  {
    val = analogRead(A0);
    counterclockwise();
  }
  if ((digitalRead(A1) != LOW) && (digitalRead(A2) != LOW))
    motorStop();
}


void clockwise()
{
  analogWrite(5, map(vel, 0, 1023, 0, 255));
  analogWrite(6, 0);
}

void counterclockwise()
{
  analogWrite(6, map(Vel, 0, 1023, 0, 255));
  analogWrite(5, 0);
}

void motorStop()
{
  analogWrite(6, 0);
  analogWrite(5, 0);
  delay(2);
}