/*
 This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as
    published by the Free Software Foundation, either version 3 of the
    License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

// define which pins are connected to which components
int left_motor_speed = 3;
int left_motor_forward = 4;
int left_motor_backward = 5;

int right_motor_speed = 10;
int right_motor_forward = 9;
int right_motor_backward = 8;

void setup(){
  pinMode(left_motor_speed, OUTPUT);
  pinMode(left_motor_forward, OUTPUT);
  pinMode(left_motor_backward, OUTPUT);

  pinMode(right_motor_speed, OUTPUT);
  pinMode(right_motor_forward, OUTPUT);
  pinMode(right_motor_backward, OUTPUT);

  digitalWrite(left_motor_speed, LOW);
  digitalWrite(left_motor_forward, LOW);
  digitalWrite(left_motor_backward, LOW);

  digitalWrite(right_motor_speed, LOW);
  digitalWrite(right_motor_forward, LOW);
  digitalWrite(right_motor_backward, LOW);}

void loop(){
  digitalWrite(left_motor_forward, HIGH);
  digitalWrite(left_motor_backward, LOW);
  analogWrite(left_motor_speed, 128);

  digitalWrite(right_motor_forward, HIGH);
  digitalWrite(right_motor_backward, LOW);
  analogWrite(right_motor_speed, 128);}