dht22傳感器溫度

這段程式在dht 11 傳感器上 溫度與濕度顯是都是正常
我把傳感器換成dht22 溫度 濕度都會變成 %
如何轉換  謝謝

// verify cheksum and print the verified data  
  if((j>=40)&&(dht11_val[4]==((dht11_val[0]+dht11_val[1]+dht11_val[2]+dht11_val[3])& 0xFF)))  
  {  
    printf("Humidity = %d.%d %% Temperature = %d.%d°C\n",dht11_val[0],dht11_val[1],dht11_val[2],dht11_val[3]);
    char text[100];
    time_t now = time(NULL);
    struct tm *t = localtime(&now);


    strftime(text, sizeof(text)-1, "%d-%m-%Y", t);
    char prefix[50] = "/var/www/log-";
    strcat(prefix,text);
    char suffix[50] = ".csv";
    strcat(prefix,suffix);

    FILE *fp;
    fp=fopen(prefix,"a");
    fprintf(fp,"%u000,%d%d,%d\n",(unsigned)time(NULL),dht11_val[2],dht11_val[3],dht11_val[0]);
    fclose(fp);
    FILE *fh;
    fh=fopen("/var/www/current_hyg.csv", "w");
    fprintf(fh,"%d\n",dht11_val[0]);
    fclose(fh);
    FILE *ft;
    ft=fopen("/var/www/current_temp.csv", "w");
    fprintf(ft,"%d.%d\n",dht11_val[2],dht11_val[3]);
    fclose(ft);
    exit(1);  
  }  
  else  
    printf("Invalid Data!!\n");  
}  

int main(void)  
{  
  printf("Interfacing Temperature and Humidity Sensor (DHT11) With Banana Pi\n");  
  if(wiringPiSetup()==-1)  
    exit(1);  
  while(1)  
  {  
     dht11_read_val();
     delay(3000);  
  }  
  return 0;  
}