Can you write in the sky? Balloon led sign (wifi).

#include <SPI.h>
#include <WiFi101.h>

char ssid[] = "CONNX";      
char pass[] = "*****";   
int keyIndex = 0;           

int status = WL_IDLE_STATUS;
WiFiServer server(80);

void setup() {
  Serial.begin(9600);      
  pinMode(0, OUTPUT);      
  pinMode(1, OUTPUT);      
  pinMode(2, OUTPUT);      
  pinMode(3, OUTPUT);      
  pinMode(4, OUTPUT);      
  pinMode(5, OUTPUT);      
  pinMode(6, OUTPUT);      
  pinMode(7, OUTPUT);      
 if (WiFi.status() == WL_NO_SHIELD) {
    Serial.println("WiFi shield not present");
    while (true);       
  }
  while ( status != WL_CONNECTED) {
    Serial.print("Attempting to connect to Network named: ");
    Serial.println(ssid);                   
    status = WiFi.begin(ssid, pass);
    delay(10000);
  }
  server.begin();                           
  printWifiStatus();                        
}

void loop() {
  WiFiClient client = server.available();   
  if (client) {                             
    Serial.println("new client");          
    String currentLine = "";                
    while (client.connected()) {            
      if (client.available()) {             
        char c = client.read();            
        Serial.write(c);                    
        if (c == '\n') {                   

          if (currentLine.length() == 0) {
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println();

            client.print("Click <a href=\"/H\">here</a> turn the LED on pin 0123456 on<br>");
            client.print("Click <a href=\"/L\">here</a> turn the LED on pin 0123456 off<br>");

            client.println();
            break;
          }
          else {      
            currentLine = "";
          }
        }
        else if (c != '\r') {    
          currentLine += c;      
        }

        if (currentLine.endsWith("GET /H")) {
          digitalWrite(0, HIGH);               
          delay (100);
          digitalWrite(1, HIGH);               
          delay (100);
          digitalWrite(2, HIGH);               
          delay (100);
          digitalWrite(3, HIGH);               
          delay (100);
          digitalWrite(4, HIGH);                    
          delay (100);
          digitalWrite(5, HIGH);               
          delay (100);
          digitalWrite(6, HIGH);               
          delay (100);
          digitalWrite(7, HIGH);               
          delay (1000);
          digitalWrite(0, LOW);                      
          digitalWrite(1, LOW);                       
          digitalWrite(2, LOW);                
          digitalWrite(3, LOW);                      
          digitalWrite(4, LOW);                     
          digitalWrite(5, LOW);                
          digitalWrite(6, LOW);                     
          digitalWrite(7, LOW);                     
          delay (1000);
        }
        if (currentLine.endsWith("GET /L")) {
          digitalWrite(0, LOW);                       
          digitalWrite(1, LOW);                        
          digitalWrite(2, LOW);                
          digitalWrite(3, LOW);                      
          digitalWrite(4, LOW);                        
          digitalWrite(5, LOW);               
          digitalWrite(6, LOW);                     
          digitalWrite(7, LOW);                       
        }
    }
    }
    client.stop();
    Serial.println("client disonnected");
  }
}

void printWifiStatus() {
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());

  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  Serial.println(ip);

  long rssi = WiFi.RSSI();
  Serial.print("signal strength (RSSI):");
  Serial.print(rssi);
  Serial.println(" dBm");
 
  Serial.print("To see this page in action, open a browser to http://");
  Serial.println(ip);