#include <TimerOne.h>
#include <Ethernet.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //mac address
byte ip[] = { xxx, xxx, xxx, xxx }; //local ip
byte server[] = { xxx, xxx, xxx, xxx }; // server ip
byte subnet[] = {xxx,xxx,xxx,xxx}; 
byte gateway[] = {xxx,xxx,xxx,xxx};
char end =0; //latest number recieved from script

Client client(server, 80);

//Pin connected to Pin 12 of 74HC595 (Latch)
int latchPin = 2;
//Pin connected to Pin 11 of 74HC595 (Clock)
int clockPin = 3;
//Pin connected to Pin 14 of 74HC595 (Data)
int dataPin = 4;
uint8_t led[8];
void setup() {
//set pins to output
pinMode(latchPin, OUTPUT);
pinMode(clockPin, OUTPUT);
pinMode(dataPin, OUTPUT);

//set display to zero
led[0] = B00000000;
led[1] = B00000000;
led[2] = B00000000;
led[3] = B00000000;
led[4] = B00000000;
led[5] = B00000000;
led[6] = B00000000;
led[7] = B00000000;
//start serial and ethernet
Serial.begin(9600);
Ethernet.begin(mac, ip, gateway, subnet);
//start timer
Timer1.initialize(10000);
Timer1.attachInterrupt(screenUpdate);
}


void loop() {
//connect to php script
  if (client.connect()) {
  //give some feedback
    Serial.println("connected");
    client.println("GET /twitterpop/ HTTP/1.0");
    client.println();
  }
  delay(100); //wait to allow proper connection
  if (client.available()) { 
    while(client.available()) //download all page
    {
    char c = client.read();
    //Serial.print(c);
    end = c;
    }
    Serial.print(end);
    client.stop();
  }
    int inByte = /*Serial.read();*/end; //store last character
    
	/*convert from asci to binary*/
	
	if (inByte == 48)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0]= B00000000;
    }
    else if(inByte == 49)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0] = B10000000;
    }
    
    else if(inByte == 50)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0] = B11000000;
    }
    
    else if(inByte == 51)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0] = B11100000;
    }
    
    else if(inByte == 52)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0] = B11110000;
    }
    
    else if(inByte == 53)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0] = B11111000;
    }
    
    else if(inByte == 54)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0] = B11111100;
    }
    
    else if(inByte == 55)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0] = B11111110;
    }
    
    else if(inByte == 56)
    {
      for(int no=7;no>0;)
      {
        led[no]=led[no-1];
        no=no-1;
      }
      led[0] = B11111111;
    }
delay(3000); //delay before updating
Serial.print("loop\n");
}

void screenUpdate() {
uint8_t row = B00000001;
for (byte k = 0; k < 9; k++) {
// Open up the latch ready to receive data
digitalWrite(latchPin, LOW);
shiftIt(~row );
shiftIt(led[k] ); // LED array
// Close the latch, sending the data in the registers out to the
//matrix
digitalWrite(latchPin, HIGH); row = row << 1;
}
}


void shiftIt(byte dataOut) {
// Shift out 8 bits LSB first,
// on rising edge of clock
boolean pinState;
//clear shift register read for sending data
digitalWrite(dataPin, LOW);
// for each bit in dataOut send out a bit
for (int i=0; i<8; i++) {
//set clockPin to LOW prior to sending bit
digitalWrite(clockPin, LOW);
// if the value of DataOut and (logical AND) a bitmask
// are true, set pinState to 1 (HIGH)
if ( dataOut & (1<<i) ) {
pinState = HIGH;
}
else {
pinState = LOW;
}
//sets dataPin to HIGH or LOW depending on pinState
digitalWrite(dataPin, pinState);
//send bit out on rising edge of clock
digitalWrite(clockPin, HIGH);
digitalWrite(dataPin, LOW);
}
//stop shifting
digitalWrite(clockPin, LOW);
}