const int SSPin = 4;
const int SCKPin = 2;
const int MISOPin = 32;
const int MOSIPin = 3;
byte slaveData = 0;  // for storing the  value sent by the slave
int mydots[8][8];
int r=0;
int m=0;
int s=1;
float doth=0;
float dotd=0;
float dot=0;

void setup() 
{
  Serial.begin(9600);
  for(int t=0;t<8;t++){

    for(int y=0;y<8;y++){

  mydots[t][y]=s;
 /* Serial.print(t);
  Serial.print(" ");
  Serial.print(y);
  Serial.print(" ");
  Serial.println(mydots[t][y]);
  */
  s=s*2;
     }
   s=1;
    
  }
  
  pinMode(SCKPin,OUTPUT);
  pinMode(MOSIPin,OUTPUT);
  pinMode(SSPin,OUTPUT);
  pinMode(MISOPin,INPUT);
  //digitalWrite(SSPin, HIGH);
  //delayMicroseconds(6);
  //digitalWrite(SSPin, LOW);
  chip_int();
  //digitalWrite(SSPin, HIGH);
 
 
}

void loop() 
{
oddColms();
 evenColms();
//for(int g=1;g<65;g=g+7)
//arrayRead2(g);
 //arrayRead2(g+1);}
 }

float arrayRead2( float dot)
{
if(int(dot) % 8 !=0) //set the collum number
doth=dot/8;          // set the collum number
else doth=dot/9;     // set the collum number
dotd=(int(dot-1) % 8);//set the data to send from the mydot array
//Serial.println( int(doth+1));
 //Serial.println(int(dotd));

 bitBangData(doth+1); // collum number
 slaveData=bitBangData(mydots[int(doth)][int(dotd) ]); //row data
 
 digitalWrite(SSPin,HIGH);
 
 digitalWrite(SSPin,LOW);// data t
 delay(100);
 bitBangData(doth+1); //clear the dot
 bitBangData(0);

 digitalWrite(SSPin,HIGH);
 
 digitalWrite(SSPin,LOW);// data t
 //delay(100);
}


  void evenColms()
  {
    int u=128;
    int e=128;
    for(int w=0;w<8;w++){
    mydots[m][1]=u;//u=trail e=no trail
    e=e/2;
    u=u+e;
    //Serial.print("data sent= ");
   //Serial.println(mydots[m][1]);
   arrayRead();
  mydots[m][1]=256;//256
  delay(75);
   }
  //mydots[r][0]=0;
  m=m+2;
  
  if (m>7){
  m=1;
   }
  // Serial.println(m);
  }

  void oddColms()
  {
     int z=1;
  for(int w=0;w<8;w++){
    mydots[r][1]=z;
    z=(z*2+1);//+1=trail

  arrayRead();
  
  mydots[r][1]=256;//256
  delay(75);
   }
   //mydots[r][1]=256;
 r=r+2;
 
  if (r>7){
  r=0;
   }
   //Serial.println(r);
  }
  
void arrayRead()
{
  int val=0;
  //int bitcnt=8;
  for(int i=0;i<8;i++)
  {
    for(int x=0;x<8;x++){
    val=mydots[i][x];
if(val|=0){
  //digitalWrite(SSPin,HIGH);
 delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
  bitBangData(i+1); // data transmission removed  slaveData = and +1
 slaveData=bitBangData(mydots[i][x]); // data transmission
  //Serial.println(slaveData);
}
  
  digitalWrite(SSPin,HIGH);
  
    }
  }
}
 

byte bitBangData(byte _send)  // This function transmit the data via bitbanging
{
  
 // Serial.print("send=   "); 
 // Serial.println( _send); 
  
  byte _receive = 0;
int bitcnt=8;
//digitalWrite(SSPin,HIGH);
  for(int i=0; i<8; i++)  // 8 bits in a byte
  {
bitcnt--;
    digitalWrite(MOSIPin, bitRead(_send, bitcnt));    // Set MOSI colloum # first then row data _send
    digitalWrite(SCKPin, HIGH);                  // SCK high
    bitWrite(_receive, bitcnt, digitalRead(MISOPin)); // Capture MISO 
    digitalWrite(SCKPin, LOW);                   // SCK low
  } 
  //Serial.print("   receive=   "); 
  //Serial.println(_receive); 
    return _receive; // Return the received data
}



void chip_int(){
   bitBangData(11); // data transmission
   bitBangData(7); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
   bitBangData(9); // data transmission
   bitBangData(0); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
   bitBangData(12); // data transmission
  bitBangData(1); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
   bitBangData(15); // data transmission
  bitBangData(0); // data transmission}
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
 bitBangData(1); // data transmission
  bitBangData(0); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
  bitBangData(2); // data transmission
  bitBangData(0); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
   bitBangData(3); // data transmission
  bitBangData(0); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
  bitBangData(4); // data transmission
  bitBangData(0); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
  bitBangData(5); // data transmission
   bitBangData(0); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
 bitBangData(6); // data transmission
   bitBangData(0); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
   bitBangData(7); // data transmission
  bitBangData(0); // data transmission
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
   bitBangData(8); // data transmission
  bitBangData(0); // data transmission
  
  digitalWrite(SSPin,HIGH);
  delayMicroseconds(3);
  digitalWrite(SSPin,LOW);
   bitBangData(10); // data transmission
   bitBangData(4); // data transmission
}