//  TAMEGA328   CI 1

const int M1L = 0;       // Input Motor 1, LEFT
const int M1R = 1;       // Input Motor 1, RIGHT

const int M2L = 2;       // Input Motor 2, LEFT
const int M2R = 3;       // Input Motor 2, RIGHT

const int M3L = 4;       // Input Motor 3, LEFT
const int M3R = 5;       // Input Motor 3, RIGHT

//        //  TAMEGA328   CI 2
//
//const int M4L = 0;       // Input Motor 4, LEFT
//const int M4R = 1;       // Input Motor 4, RIGHT
//
//const int M5L = 2;       // Input Motor 5, LEFT
//const int M5R = 3;       // Input Motor 5, RIGHT
//
//const int M6L = 4;       // Input Motor 6, LEFT
//const int M6R = 5;       // Input Motor 6, RIGHT

        //  TAMEGA328   CI 1

const int Ea = 10;         // Enable A  for L298 CI 1
const int Eb = 9;          // Enable B  for L298 CI 1
const int Ea2 = 11;         // Enable A  for L298 CI 2

int BUFFER;
int POT = A0;    // Input speed motor set in the code to be from 50% to 100%
int PWM = 0;
int MAX = 256;   // Input speed motor set to 100%
int DELAY = 1;// Input delay low speed motor
void setup()
{

pinMode(M1L, INPUT);
pinMode(M1R, INPUT);
pinMode(M2L, INPUT);
pinMode(M2R, INPUT);
pinMode(M3L, INPUT);
pinMode(M3R, INPUT);
pinMode(Ea, OUTPUT);
pinMode(Eb, OUTPUT);
pinMode(POT, INPUT);

}

void loop() {
int buttonState_M1L = 0;         // current state of the INPUT
int buttonState_M1R = 0;         // current state of the INPUT
int buttonState_M2L = 0;         // current state of the INPUT
int buttonState_M2R = 0;         // current state of the INPUT
int buttonState_M3L = 0;         // current state of the INPUT
int buttonState_M3R = 0;         // current state of the INPUT

  
buttonState_M1L = digitalRead(M1L);   // read the pushbutton input M1L
buttonState_M1R = digitalRead(M1R);   // read the pushbutton input M1R
buttonState_M2L = digitalRead(M2L);   // read the pushbutton input M2L
buttonState_M2R = digitalRead(M2R);   // read the pushbutton input M2R
buttonState_M3L = digitalRead(M3L);   // read the pushbutton input M3L
buttonState_M3R = digitalRead(M3R);   // read the pushbutton input M3R


BUFFER = analogRead(POT);
PWM = 256-(BUFFER/8);     // speed motor set to be from 50% to 100%


   //  1  TAMEGA328   CI 1 for M1L

    if (buttonState_M1L == HIGH) 
    {
           
      analogWrite(Ea, PWM);
      delay (DELAY);
      analogWrite(MAX, PWM);
      
    }
    else 
    {
      analogWrite(M1L, 0);
            
         

    }
        //  2  TAMEGA328   CI 1 for M1R

    if (buttonState_M1R == HIGH) 
    {
           
      analogWrite(Ea, PWM);
      delay (DELAY);
      analogWrite(MAX, PWM);
      
    }
    else 
    {
      analogWrite(M1R, 0);
            
         

    }
        //  3 TAMEGA328   CI 1 for M2L

    if (buttonState_M2L == HIGH) 
    {
           
      analogWrite(Eb, PWM);
      delay (DELAY);
      analogWrite(MAX, PWM);
      
    }
    else 
    {
      analogWrite(M2L, 0);
            
         

    }
   
        // 4 TAMEGA328   CI 1 for M2R

    if (buttonState_M1L == HIGH) 
    {
           
      analogWrite(Eb, PWM);
      delay (DELAY);
      analogWrite(MAX, PWM);
      
    }
    else 
    {
      analogWrite(M2R, 0);
            
         

    }
        //  5  TAMEGA328   CI 1 for M3L

    if (buttonState_M3L == HIGH) 
    {
           
      analogWrite(Ea2, PWM);
      delay (DELAY);
      analogWrite(MAX, PWM);
      
    }
    else 
    {
      analogWrite(M3L, 0);
            
         

    }
        //  6  TAMEGA328   CI 1 for M3R

    if (buttonState_M3R == HIGH) 
    {
           
      analogWrite(Ea2, PWM);
      delay (DELAY);
      analogWrite(MAX, PWM);
      
    }
    else 
    {
      analogWrite(M3R, 0);
            
         

    }
        
    // Delay a little bit to avoid bouncing
    delay(50);
  }