*PROBLEM* 2 digit 7 segment with dual 74hc595

Using Arduino Programming Questions
#1

hello,
i decide to make a thermometer project!i have a problem with the code.i see random segments light up but dont make the numbers that i wand

const byte COL_COUNT = 100;
unsigned int sequence[COL_COUNT] = {/*
  1234567812345678*/
0B1111110011111100,//00
0B0110000011111100,
0B1101101011111100,
0B1111001011111100,
0B0110011011111100,
0B1011011011111100,
0B1011111011111100,
0B1110000011111100,
0B1111111011111100,
0B1111011011111100,//09
0B1111110001100000,//10
0B0110000001100000,
0B1101101001100000,
0B1111001001100000,
0B0110011001100000,
0B1011011001100000,
0B1011111001100000,
0B1110000001100000,
0B1111111001100000,
0B1111011001100000,//19
0B1111110011011010,//20
0B0110000011011010,
0B1101101011011010,
0B1111001011011010,
0B0110011011011010,
0B1011011011011010,
0B1011111011011010,
0B1110000011011010,
0B1111111011011010,
0B1111011011011010,//29
0B1111110011110010,//30
0B0110000011110010,
0B1101101011110010,
0B1111001011110010,
0B0110011011110010,
0B1011011011110010,
0B1011111011110010,
0B1110000011110010,
0B1111111011110010,
0B1111011011110010,//39
0B1111110001100110,//40
0B0110000001100110,
0B1101101001100110,
0B1111001001100110,
0B0110011001100110,
0B1011011001100110,
0B1011111001100110,
0B1110000001100110,
0B1111111001100110,
0B1111011001100110,//49
0B1111110010110110,//50
0B0110000010110110,
0B1101101010110110,
0B1111001010110110,
0B0110011010110110,
0B1011011010110110,
0B1011111010110110,
0B1110000010110110,
0B1111111010110110,
0B1111011010110110,//59
0B1111110010111110,//60
0B0110000010111110,
0B1101101010111110,
0B1111001010111110,
0B0110011010111110,
0B1011011010111110,
0B1011111010111110,
0B1110000010111110,
0B1111111010111110,
0B1111011010111110,//69
0B1111110011100000,//70
0B0110000011100000,
0B1101101011100000,
0B1111001011100000,
0B0110011011100000,
0B1011011011100000,
0B1011111011100000,
0B1110000011100000,
0B1111111011100000,
0B1111011011100000,//79
0B1111110011111110,//80
0B0110000011111110,
0B1101101011111110,
0B1111001011111110,
0B0110011011111110,
0B1011011011111110,
0B1011111011111110,
0B1110000011111110,
0B1111111011111110,
0B1111011011111110,//89
0B1111110011110110,//90
0B0110000011110110,
0B1101101011110110,
0B1111001011110110,
0B0110011011110110,
0B1011011011110110,
0B1011111011110110,
0B1110000011110110,
0B1111111011110110,
0B1111011011110110,//99
};
int latchPin = 8;  //Pin connected to ST_CP(pin 12) of 74HC595
int clockPin = 12; //Pin connected to SH_CP(pin 11) of 74HC595
int dataPin = 11;  //Pin connected to DS(pin 14) of 74HC595
int s1 = A0;       //sensor pin
 
void setup() {    
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  //sensor pins
  pinMode(s1, INPUT);
  Serial.begin(9600);
}
 
void loop() 
{ 
  int sa = round(map(analogRead(s1), 0, 1023, 100, 0));
    digitalWrite(latchPin, LOW);
    shiftOut(dataPin, clockPin, MSBFIRST, (sequence[sa] >> 8)); //shift out highbyte
    shiftOut(dataPin, clockPin, LSBFIRST,sequence[sa]); //shift out lowbyte    
    digitalWrite(latchPin, HIGH);
    Serial.print(sequence[sa]);Serial.print(",");Serial.println(sa);
    delay(200);
}

i try to make it with binary.the wiring is this:
Can you help me to just make it count from 0 to 100? Thanks

#2

You can't really count to 100 with 2 digits. You can county from 00 to 99.

You should write the two digits separately. That way you don't need a table of 100 values where a table of 10 values will do.

unsigned char Digits[] = {
0B11111100, //0
0B01100000, //1
0B11011010, //2
0B11110010, //3 
0B01100110, //4
0B10110110, //5
0B10111110, //6
0B11100000, //7
0B11111110, //8
0B11110110}; //09

  int sa = map(analogRead(s1), 0, 1023, 99, 0);
    digitalWrite(latchPin, LOW);
    shiftOut(dataPin, clockPin, LSBFIRST, Digit[sa/10]));  //shift out high digit
    shiftOut(dataPin, clockPin, LSBFIRST, Digit[sa%10]);  //shift out low digit   
    digitalWrite(latchPin, HIGH);
    Serial.print(sequence[sa]);Serial.print(",");Serial.println(sa);
    delay(200);

Then you just have to fix your bit patterns so they light the right segments.

#3