/* Test code for the RC car PCB with Bluetooth
 *  Tutorial: https://www.electronoobs.com/eng_arduino_tut92.php
 *  Schematic: https://www.electronoobs.com/eng_arduino_tut92_sch2.php
 *  Video: https://www.youtube.com/watch?v=bb1u_kne-m4
 * Upload this code to the Arduino NANO
Please, like share and subscribe : https://www.youtube.com/c/ELECTRONOOBS
*/


#include <SoftwareSerial.h>
#include <DFMiniMp3.h>          //Downlaod it here: https://www.electronoobs.com/eng_arduino_DFPlayer_Mini_Mp3_by_Makuna.php




class Mp3Notify
{
public:
  static void OnError(uint16_t errorCode)
  {
    // see DfMp3_Error for code meaning
    Serial.println();
    Serial.print("Com Error ");
    Serial.println(errorCode);
  }
  static void OnPlayFinished(uint16_t track)
  {
    Serial.print("Play finished for #");
    Serial.println(track);  
  }
  static void OnCardOnline(uint16_t code)
  {
    Serial.println("Card online ");
  }
  static void OnCardInserted(uint16_t code)
  {
    Serial.println("Card inserted ");
  }
  static void OnCardRemoved(uint16_t code)
  {
    Serial.println("Card removed ");
  }
};

// instance a DFMiniMp3 object, 
// defined with the above notification class and the hardware serial class
//
DFMiniMp3<HardwareSerial, Mp3Notify> mp3(Serial);


int mot_A_L = 3;
int mot_A_R = 5;
int mot_B_L = 6;
int mot_B_R = 9;

bool movement = false;
bool stopped = false;
bool fire = false;
char Received = '0';
/**************************************************/



void setup()
{
  pinMode(mot_A_L,OUTPUT);
  pinMode(mot_A_R,OUTPUT);
  pinMode(mot_B_L,OUTPUT);
  pinMode(mot_B_R,OUTPUT);
  digitalWrite(mot_A_L,LOW);
  digitalWrite(mot_A_R,LOW);
  digitalWrite(mot_B_L,LOW);
  digitalWrite(mot_B_R,LOW);

  
 Serial.begin(9600);  
 mp3.begin();
 uint16_t volume = mp3.getVolume();
 mp3.setVolume(20);  
 uint16_t count = mp3.getTotalTrackCount();
 delay(200);
 }


 
void loop()
{
 
if(Serial.available()>0)
{
  Received = Serial.read();
  //char Rec = char(Received);  
  //Serial.println(Received); //This is to visualise the received character      
}




if(Received == '0')
{
  if(!stopped)
  {
    mp3.playMp3FolderTrack(2); 
    //mp3_next();     
    stopped = true;   
  } 
  digitalWrite(mot_A_L,LOW); 
  digitalWrite(mot_A_R,LOW); 
  digitalWrite(mot_B_L,LOW); 
  digitalWrite(mot_B_R,LOW); 
  movement = false; 
  fire = false;
}

if (Received == '1')
{
  if(!movement)
  {
    mp3.playMp3FolderTrack(1); 
    //mp3_next();
    movement = true;   
  }  
  digitalWrite(mot_A_L,HIGH); 
  digitalWrite(mot_A_R,LOW); 
  digitalWrite(mot_B_L,LOW); 
  digitalWrite(mot_B_R,HIGH); 
  stopped = false;
}

if (Received == '2')
{
  if(!movement)
  {
    mp3.playMp3FolderTrack(1); 
    //mp3_next();
    movement = true;   
  }  
  digitalWrite(mot_A_L,HIGH); 
  digitalWrite(mot_A_R,LOW); 
  digitalWrite(mot_B_L,HIGH); 
  digitalWrite(mot_B_R,LOW); 
  stopped = false; 
}

if (Received == '3')
{
  if(!movement)
  {
    mp3.playMp3FolderTrack(1); 
    //mp3_next();
    movement = true;   
  }  
  digitalWrite(mot_A_L,LOW); 
  digitalWrite(mot_A_R,HIGH); 
  digitalWrite(mot_B_L,HIGH); 
  digitalWrite(mot_B_R,LOW); 
  stopped = false; 
}

if (Received == '4')
{
  if(!movement)
  {
    mp3.playMp3FolderTrack(1); 
    //mp3_next();
    movement = true;   
  }  
  digitalWrite(mot_A_L,LOW); 
  digitalWrite(mot_A_R,HIGH); 
  digitalWrite(mot_B_L,LOW); 
  digitalWrite(mot_B_R,HIGH); 
  stopped = false; 
}


if (Received == 'l')
{
  if(!fire)
  {
    mp3.playMp3FolderTrack(3); 
    //mp3_next();
    fire = true;   
  }  
  digitalWrite(mot_A_L,LOW); 
  digitalWrite(mot_A_R,LOW); 
  digitalWrite(mot_B_L,LOW); 
  digitalWrite(mot_B_R,LOW);   
}

}

/**************************************************/