// ============================================================================
// Source: STEAM Clown - www.steamclown.org 
// GitHub: https://github.com/jimTheSTEAMClown/arduinoCode
// Hacker: Jim Burnham - STEAM Clown, Engineer, Maker, Propmaster & Adrenologist 
// This example code under the GNU Lesser General Public License v3.0
// and any docs and lesson examples is licensed under the CC BY-NC-SA 3.0.
// https://creativecommons.org/licenses/by-nc-sa/3.0/
// Create Date:			09/16/2018 
// Design Name:			dcMotorTest_STEAMClown
// Description:     adaptation of blink on http://arduino.cc/
// Dependencies: 
// Revision: 
// Revision 0.02 - Updated for SVCTE Mechatronics Class 2018 - 09/16/2018
// Revision 0.01 - Created 09/16/2018 
// Additional Comments: 
//
// ============================================================================
// General Pins and Variables
  int boardLED=13;

// Motor Control Pins and Variables
  byte motorSpeed=0;  // change this (0-255) to control the speed of the motors
  // Left Motor 
  const int leftDirControl1 = 2;
  const int leftDirControl2 = 3;
  const int leftSpeedControlPin = 4; // Needs to be a PWM pin to be able to control motor speed

void setup() {
  // initialize serial communication @ 9600 baud:
  Serial.begin(9600);

  //Define L298N Dual H-Bridge Motor Controller Pins
  pinMode(leftDirControl1,OUTPUT);
  pinMode(leftDirControl2,OUTPUT);
  pinMode(leftSpeedControlPin,OUTPUT);

  // Stop All Motors
  motorSpeed = 0;
  analogWrite(leftSpeedControlPin, motorSpeed);//Sets speed variable via PWM
  digitalWrite(leftDirControl1, LOW);
  digitalWrite(leftDirControl2, LOW);
  delay(1000);
}
   
void loop() {
      
    // turn on left motor in a Clockwise motion
    motorSpeed = 140;         //Sets speed variable via PWM = 140;
    analogWrite(leftSpeedControlPin, motorSpeed);//Sets speed variable via PWM
    digitalWrite(leftDirControl1, LOW);
    digitalWrite(leftDirControl2, HIGH);
    Serial.print("Clockwise with a speed of ");
    Serial.println(motorSpeed);
    delay(2000); 
    
    // Stop All Motors
    motorSpeed = 0;
    analogWrite(leftSpeedControlPin, motorSpeed);//Sets speed variable via PWM
    digitalWrite(leftDirControl1, LOW);
    digitalWrite(leftDirControl2, LOW);
    Serial.println("All Motors STOPPED"); 
    delay(1000); 
    
    // turn on left motor in a CounterClockwise motion
    motorSpeed = 140;         //Sets speed variable via PWM = 140;
    analogWrite(leftSpeedControlPin, motorSpeed);//Sets speed variable via PWM
    digitalWrite(leftDirControl1, HIGH);
    digitalWrite(leftDirControl2, LOW);
    Serial.print("CounterClockwise with a speed of ");
    Serial.println(motorSpeed);
    delay(2000); 
    
    // Stop All Motors
    motorSpeed = 0;
    analogWrite(leftSpeedControlPin, motorSpeed);//Sets speed variable via PWM
    digitalWrite(leftDirControl1, LOW);
    digitalWrite(leftDirControl2, LOW);
    Serial.println("All Motors STOPPED"); 
    delay(1000); 
 }