Esempio n. 1
0
int main()
{
  // Initialize the encoders and specify the four input pins.
  encoders_init(IO_C2, IO_C3, IO_C4, IO_C5);

  while(1)
  {
    // Read the counts for motor 1 and print to LCD.
    lcd_goto_xy(0,0);
    print_long(encoders_get_counts_m1());
    print(" ");

    // Read the counts for motor 2 and print to LCD.
    lcd_goto_xy(4,0);
    print_long(encoders_get_counts_m2());
    print(" ");

    // Print encoder errors, if there are any.
    if(encoders_check_error_m1())
    {
      lcd_goto_xy(0,1);
      print("Error 1");
    }
    if(encoders_check_error_m2())
    {
      lcd_goto_xy(0,1);
      print("Error 2");
    }

    delay_ms(50);
  }
}
Esempio n. 2
0
int main()
{
  // Initialize the encoders
  encoders_init(IO_D2, IO_D3, IO_A3, IO_A2);
  float count = 0;
  char forward = TRUE;
  int motor_speed = 100;

  //set_motors(100, 255);
  while(1)
  {
    clear();
    lcd_goto_xy(0,0);

    //Calculate the count
    count = encoders_get_counts_m1() / ENCODER_COUNT_PER_REVOLUTION;

    // Increment and decrement speed if top or bottom buttons were pressed.
    unsigned char button = get_single_debounced_button_press(ANY_BUTTON);

    if ((button & TOP_BUTTON) && motor_speed < 250) // if top button pressed
      motor_speed = motor_speed + 5;
    if ((button & BOTTOM_BUTTON) && motor_speed > 80) // if bottom button pressed
      motor_speed = motor_speed - 5;

    //If the user is holding the middle button we want to stop the motor.
    if(button_is_pressed(MIDDLE_BUTTON) & MIDDLE_BUTTON)
    {
      print("Paused ");
      set_motors(0,0);
    }
    else
    {
      // Set motor speed dependent on direction.
      if(forward)
      {
        set_motors(motor_speed, 0);
        print("Forward ");
      }
      else
      {
        set_motors(-motor_speed, 0);
        print("Reverse ");
      }

      // At 0 and 2 we need to switch directions.
      if(count >= 2 && forward)
        forward = FALSE;

      if(count <= 0 && !forward)
        forward = TRUE;
    }

    // Print the motor speed and revolutions
    print_long(motor_speed); 
    print_count(count); 

    //Delay so LCD doesn't flicker too much
    delay_ms(50);
  }
}